Package ucar.unidata.data.grid

Class DerivedGridFactory

java.lang.Object
ucar.unidata.data.grid.DerivedGridFactory
public class DerivedGridFactory extends Object
DerivedGridFactory has static methods for creating various derived quantities from grids. A grid is defined as a FieldImpl which has one of the following MathTypes structures: 
   (x,y) -> (parm)
   (x,y) -> (parm1, ..., parmN)
   (x,y,z) -> (parm)
   (x,y,z) -> (parm1, ..., parmN)
   (t -> (x,y) -> (parm))
   (t -> (x,y) -> (parm1, ..., parmN))
   (t -> (x,y,z) -> (parm))
   (t -> (x,y,z) -> (parm1, ..., parmN))
   (t -> (index -> (x,y) -> (parm)))
   (t -> (index -> (x,y) -> (parm1, ..., parmN)))
   (t -> (index -> (x,y,z) -> (parm)))
   (t -> (index -> (x,y,z) -> (parm1, ..., parmN)))
In general, t is a time variable, but it might also be just an index.
Version:
$Revision: 1.73 $
Author:
Don Murray

  • Field Details

    • NEGATIVE_ONE

      public static final Real NEGATIVE_ONE
      negative one

    • EARTH_RADIUS

      public static final Real EARTH_RADIUS
      EARTH RADIUS (6371 km)

    • EARTH_TWO_OMEGA

      public static final Real EARTH_TWO_OMEGA
      EARTH 2 omega

    • GRAVITY

      public static final Real GRAVITY
      gravity

    • CLIMATE_UNITS

      public static final Unit CLIMATE_UNITS
      climatology units

  • Constructor Details

    • DerivedGridFactory

      public DerivedGridFactory()
      Default ctor; does nothing

  • Method Details

    • ensembleAverage

      public static FieldImpl ensembleAverage(FieldImpl grid) throws VisADException, RemoteException
      Create an ensemble average
      Parameters:
      grid - the grid of ensembles
      Returns:
      the average of the members
      Throws:
      RemoteException - java RMI problem
      VisADException - VisAD error

    • createThickness

      public static FieldImpl createThickness(FieldImpl grid) throws VisADException, RemoteException
      Create a 1000-500 mb thickness grid
      Parameters:
      grid - grid (hopefully a height grid)
      Returns:
      thickness field.
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error
      See Also:

    • createLayerDifference

      public static FieldImpl createLayerDifference(FieldImpl grid, String value1, String value2) throws VisADException, RemoteException
      Make the difference of one grid's values at the given levels; first level subtract second level values.
      Parameters:
      grid - grid of data
      value1 - level the first as a String
      value2 - level the second as a String
      Returns:
      computed layer difference
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createLayerDifference

      public static FieldImpl createLayerDifference(FieldImpl grid, String value1, String value2, String levelUnit) throws VisADException, RemoteException
      Make the difference of one grid's values at the given levels; first level subtract second level values.
      Parameters:
      grid - grid of data
      value1 - level the first as a String
      value2 - level the second as a String
      levelUnit - unit spec for level
      Returns:
      computed layer difference
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createLayerDifference

      public static FieldImpl createLayerDifference(FieldImpl grid, double value1, double value2) throws VisADException, RemoteException
      Make the difference of one grid's values at the given levels; first level subtract second level values.
      Parameters:
      grid - grid of data
      value1 - level of first
      value2 - level of second
      Returns:
      computed layer difference
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createLayerDifference

      public static FieldImpl createLayerDifference(FieldImpl grid, double value1, double value2, Unit levelUnit) throws VisADException, RemoteException
      Make the difference of one grid's values at the given levels; first level subtract second level values.
      Parameters:
      grid - grid of data
      value1 - level of first
      value2 - level of second
      levelUnit - unit for level
      Returns:
      computed layer difference
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createLayerAverage

      public static FieldImpl createLayerAverage(FieldImpl grid, String value1, String value2) throws VisADException, RemoteException
      Make the average of 2 levels of a grid
      Parameters:
      grid - grid of data
      value1 - level the first as a String
      value2 - level the second as a String
      Returns:
      computed layer difference
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createLayerAverage

      public static FieldImpl createLayerAverage(FieldImpl grid, String value1, String value2, String levelUnit) throws VisADException, RemoteException
      Make the average of 2 levels of a grid
      Parameters:
      grid - grid of data
      value1 - level the first as a String
      value2 - level the second as a String
      levelUnit - unit for level
      Returns:
      computed layer difference
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createLayerAverage

      public static FieldImpl createLayerAverage(FieldImpl grid, double value1, double value2) throws VisADException, RemoteException
      Make the average of 2 levels of a grid
      Parameters:
      grid - grid of data
      value1 - level of first
      value2 - level of second
      Returns:
      computed layer difference
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createLayerAverage

      public static FieldImpl createLayerAverage(FieldImpl grid, double value1, double value2, Unit levelUnit) throws VisADException, RemoteException
      Make the average of 2 levels of a grid
      Parameters:
      grid - grid of data
      value1 - level of first
      value2 - level of second
      levelUnit - unit for level
      Returns:
      computed layer difference
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createRelativeVorticity

      public static FieldImpl createRelativeVorticity(FieldImpl uFI, FieldImpl vFI) throws VisADException, RemoteException
      Computes relative vorticity from grid-relative wind components. The first and second components of the range of the input FieldImpl are assumed to be the velocity of the wind in the direction of increasing first and second dimension of the domain, respectively.
      Parameters:
      uFI - grid or time sequence of grids of positive-X wind comp.
      vFI - grid or time sequence of grids of positive-Y wind comp.
      Returns:
      computed relative vorticity.
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error
      See Also:
      • "Meteorology for Scientists and Engineers, p. 233"

    • relativeVorticityFromTrueWind

      public static FieldImpl relativeVorticityFromTrueWind(FieldImpl uFI, FieldImpl vFI) throws VisADException, RemoteException
      Computes relative vorticity from U and V. The grid is not assumed to be aligned with north and south. Partial derivatives of the wind components are taken with respect to the latitude and longitude dimensions of the reference of the CoordinateSystem of the input spatial domains.
      Parameters:
      uFI - grid or time sequence of grids of the eastward wind comp.
      vFI - grid or time sequence of grids of the northward wind comp.
      Returns:
      computed relative vorticity.
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error
      See Also:
      • "Meteorology for Scientists and Engineers, p. 233"

    • createAbsoluteVorticity

      public static FieldImpl createAbsoluteVorticity(FieldImpl uFI, FieldImpl vFI) throws VisADException, RemoteException
      Computes absolute vorticity from grid-relative wind components. Absolute vorticity is relative vorticity plus the Coriolus parameter. The first and second components of the range of the input FieldImpl are assumed to be the velocity of the wind in the direction of increasing first and second dimension of the domain, respectively.
      Parameters:
      uFI - grid or time sequence of grids of positive-X wind comp.
      vFI - grid or time sequence of grids of positive-Y wind comp.
      Returns:
      computed absolute vorticity.
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error
      See Also:
      • "Meteorology for Scientists and Engineers, p. 234"

    • createTrueWindVectors

      public static FieldImpl createTrueWindVectors(FieldImpl uGrid, FieldImpl vGrid) throws VisADException, RemoteException
      Make a grid of true wind vectors from grid relative u and v components.
      Parameters:
      uGrid - grid of U wind component
      vGrid - grid of V wind component
      Returns:
      true wind components
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createTrueFlowVectors

      public static FieldImpl createTrueFlowVectors(FieldImpl uGrid, FieldImpl vGrid, FieldImpl wGrid) throws VisADException, RemoteException
      _more_
      Parameters:
      uGrid - _more_
      vGrid - _more_
      wGrid - _more_
      Returns:
      _more_
      Throws:
      RemoteException - _more_
      VisADException - _more_

    • createTrueFlowVectors

      public static FieldImpl createTrueFlowVectors(FieldImpl uGrid, FieldImpl vGrid) throws VisADException, RemoteException
      Make a grid of true flow vectors from grid relative u and v components.
      Parameters:
      uGrid - grid of U wind component
      vGrid - grid of V wind component
      Returns:
      true flow components
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createTrueFlowVector0

      public static FieldImpl createTrueFlowVector0(FieldImpl uvGrid) throws VisADException, RemoteException
      Make a grid of true flow vectors from grid relative u and v components.
      Parameters:
      uvGrid - vector of uv grids
      Returns:
      true flow components
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createTrueFlowVector

      public static FieldImpl createTrueFlowVector(FieldImpl uvGrid) throws VisADException, RemoteException
      Create true flow vectors from a uv grid.
      Parameters:
      uvGrid - the uv grid
      Returns:
      the grid converted to true (north) winds
      Throws:
      RemoteException - Java RMI Exception
      VisADException - VisAD problem

    • createWindVectors

      public static FieldImpl createWindVectors(FieldImpl uGrid, FieldImpl vGrid) throws VisADException, RemoteException
      Make a FieldImpl of wind vectors from u and v components.
      Parameters:
      uGrid - grid of U wind component
      vGrid - grid of V wind component
      Returns:
      combine two separate fields (u and v) into one grid (u,v)
      Throws:
      VisADException - VisAD problem
      RemoteException - remote problem deprecated use #createFlowVectors(uGrid, vGrid)

    • createGeostrophicWindVector

      public static FieldImpl createGeostrophicWindVector(FieldImpl paramFI) throws VisADException, RemoteException
      Make a FieldImpl of geostrophic wind.
      Parameters:
      paramFI - parameter to use (height)
      Returns:
      vector of geopotential height
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • create2DTopography

      public static FieldImpl create2DTopography(FieldImpl paramGrid, FieldImpl topoGrid) throws VisADException, RemoteException
      Make a FieldImpl of some parameter and topography. We add a little bit to the topography grid so it will raise it up just a tad
      Parameters:
      paramGrid - parameter grid
      topoGrid - grid of topography. Must have units convertible with meter or geopotential meter.
      Returns:
      combined grids
      Throws:
      VisADException - VisAD problem
      RemoteException - remote problem

    • create2DTopography

      public static FieldImpl create2DTopography(FieldImpl paramGrid, FieldImpl topoGrid, boolean resampleToTopography) throws VisADException, RemoteException
      Make a FieldImpl of some parameter and topography. We add a little bit to the topography grid so it will raise it up just a tad
      Parameters:
      paramGrid - parameter grid
      topoGrid - grid of topography. Must have units convertible with meter or geopotential meter.
      resampleToTopography - true to resample to the topography domain
      Returns:
      combined grids
      Throws:
      VisADException - VisAD problem
      RemoteException - remote problem

    • convertPressureToHeight

      public static FieldImpl convertPressureToHeight(FieldImpl pressureField) throws VisADException, RemoteException
      Convert a pressure field to height values using the supplied coordinate system
      Parameters:
      pressureField - the pressure field. Must have units convertible with hPa and have a single range dimension.
      Returns:
      the height field
      Throws:
      RemoteException - Java RMI exception
      VisADException - Illegal field or some other VisAD error

    • convertPressureToHeight

      public static FieldImpl convertPressureToHeight(FieldImpl pressureField, CoordinateSystem pressToHeightCS) throws VisADException, RemoteException
      Convert a pressure field to height values using the supplied coordinate system
      Parameters:
      pressureField - the pressure field. Must have units convertible with hPa and have a single range dimension.
      pressToHeightCS - The transform. If null, standard atmosphere is used.
      Returns:
      the height field
      Throws:
      RemoteException - Java RMI exception
      VisADException - Illegal field or some other VisAD error

    • convertPressureVelocityToHeightVelocity

      public static FieldImpl convertPressureVelocityToHeightVelocity(FieldImpl wGrid) throws VisADException, RemoteException
      calculate the vertical velocity based on pressure velocity dz/dt= dp/dt * dz/dp
      Parameters:
      wGrid - pressure velocity field
      Returns:
      the velocities as m/s
      Throws:
      RemoteException - Java RMI problem
      VisADException - VisAD problem

    • convertPressureVelocityToHeightVelocity2

      public static FieldImpl convertPressureVelocityToHeightVelocity2(FieldImpl wGrid, FieldImpl tGrid) throws VisADException, RemoteException
      calculate the vertical velocity based on hydrostatic and ideal gas law equation (w, m/s) = -(R*T/gP)*(w, Pa/s)
      Parameters:
      wGrid - pressure velocity field
      tGrid - the temperature field
      Returns:
      the velocities as m/s
      Throws:
      RemoteException - Java RMI problem
      VisADException - VisAD problem

    • convertPressureVelocityToHeightVelocity

      public static FieldImpl convertPressureVelocityToHeightVelocity(FieldImpl pressureVelField, FieldImpl hField, CoordinateSystem pressToHeightCS) throws VisADException, RemoteException
      Convert pressure velocity to height velocity
      Parameters:
      pressureVelField - pressure velocity field
      hField - the height field
      pressToHeightCS - _more_
      Returns:
      the velocities as m/s
      Throws:
      RemoteException - Java RMI problem
      VisADException - VisAD problem

    • createFlowVectors

      public static FieldImpl createFlowVectors(FieldImpl uGrid, FieldImpl vGrid) throws VisADException, RemoteException
      Make a FieldImpl of wind vectors from u and v components.
      Parameters:
      uGrid - grid of U flow component
      vGrid - grid of V flow component
      Returns:
      combine two separate fields (u and v) into one grid (u,v)
      Throws:
      VisADException - VisAD problem
      RemoteException - remote problem

    • createFlowVectors

      public static FieldImpl createFlowVectors(FieldImpl uGrid, FieldImpl vGrid, FieldImpl wGrid) throws VisADException, RemoteException
      Make a FieldImpl of flow vectors from u, v and w components.
      Parameters:
      uGrid - grid of U flow component
      vGrid - grid of V flow component
      wGrid - grid of W flow component
      Returns:
      combine three separate fields (u, v and w) into one grid (u,v,w)
      Throws:
      VisADException - VisAD problem
      RemoteException - remote problem

    • createFlowVectorsN

      public static FieldImpl createFlowVectorsN(FieldImpl uGrid, FieldImpl vGrid, FieldImpl wGrid) throws VisADException, RemoteException
      _more_
      Parameters:
      uGrid - _more_
      vGrid - _more_
      wGrid - _more_
      Returns:
      _more_
      Throws:
      RemoteException - _more_
      VisADException - _more_

    • createFlowVectorsNA

      public static List<FieldImpl> createFlowVectorsNA(FieldImpl uGrid, FieldImpl vGrid, FieldImpl wGrid, FieldImpl topo) throws VisADException, RemoteException, Exception
      _more_
      Parameters:
      uGrid - _more_
      vGrid - _more_
      wGrid - _more_
      topo - _more_
      Returns:
      _more_
      Throws:
      Exception - _more_
      RemoteException - _more_
      VisADException - _more_

    • createFlowVectorsN

      public static FieldImpl createFlowVectorsN(FieldImpl uGrid, FieldImpl vGrid) throws VisADException, RemoteException
      _more_
      Parameters:
      uGrid - _more_
      vGrid - _more_
      Returns:
      _more_
      Throws:
      RemoteException - _more_
      VisADException - _more_

    • createFlowVectorsN1

      public static FieldImpl createFlowVectorsN1(FieldImpl wGrid) throws VisADException, RemoteException
      _more_
      Parameters:
      wGrid - _more_
      Returns:
      _more_
      Throws:
      RemoteException - _more_
      VisADException - _more_

    • combineGrids

      public static FieldImpl combineGrids(FieldImpl[] grids) throws VisADException, RemoteException
      Combine an array of grids into one. If the grids are on different time domains, they are resampled to the domain of the first.
      Parameters:
      grids - array of grids (must have at least 2)
      Returns:
      combined grid.
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • combineGrids

      public static FieldImpl combineGrids(FieldImpl[] grids, boolean flatten) throws VisADException, RemoteException
      Combine an array of grids into one. If the grids are on different time domains, they are resampled to the domain of the first. Flatten
      Parameters:
      grids - array of grids (must have at least 2)
      flatten - flatten the structure
      Returns:
      combined grid.
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • combineGrids

      public static FieldImpl combineGrids(FieldImpl[] grids, int samplingMode, int errorMode, boolean flatten) throws VisADException, RemoteException
      Combine an array of grids into one. If the grids are on different time domains, they are resampled to the domain of the first.
      Parameters:
      grids - array of grids (must have at least 2)
      samplingMode - sampling mode (e.g. WEIGHTED_AVERAGE, NEAREST_NEIGHBOR)
      errorMode - sampling error mode (e.g. NO_ERRORS)
      flatten - false to keep tuple integrity.
      Returns:
      combined grid.
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • combineGridsR

      public static FieldImpl combineGridsR(FieldImpl[] grids, int samplingMode, int errorMode, boolean flatten) throws VisADException, RemoteException
      Combine an array of grids into one. If the grids are on different time domains, they are resampled to the domain of the first.
      Parameters:
      grids - array of grids (must have at least 2)
      samplingMode - sampling mode (e.g. WEIGHTED_AVERAGE, NEAREST_NEIGHBOR)
      errorMode - sampling error mode (e.g. NO_ERRORS)
      flatten - false to keep tuple integrity.
      Returns:
      combined grid.
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • combineGrids

      public static FieldImpl combineGrids(FieldImpl grid1, FieldImpl grid2, FieldImpl grid3) throws VisADException, RemoteException
      Combine three Fields into one. If the grids are on different time domains, the second is resampled to the domain of the first.
      Parameters:
      grid1 - first grid. This will be used for the time/space domain
      grid2 - second grid.
      grid3 - third grid.
      Returns:
      combined grid.
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • combineGrids

      public static FieldImpl combineGrids(FieldImpl grid1, FieldImpl grid2) throws VisADException, RemoteException
      Combine two Fields into one. If the grids are on different time domains, the second is resampled to the domain of the first.
      Parameters:
      grid1 - first grid. This will be used for the time/space domain
      grid2 - second grid.
      Returns:
      combined grid.
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • combineGridsN

      public static FieldImpl combineGridsN(FieldImpl grid1, FieldImpl grid2) throws VisADException, RemoteException
      Combine two Fields into one. If the grids are on different spatial domains, the second is resampled to the domain of the first.
      Parameters:
      grid1 - first grid. This will be used for the time/space domain
      grid2 - second grid.
      Returns:
      combined grid.
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • combineGrids

      public static FieldImpl combineGrids(FieldImpl grid1, FieldImpl grid2, boolean flatten) throws VisADException, RemoteException
      Combine two Fields into one. If the grids are on different time domains, the second is resampled to the domain of the first.
      Parameters:
      grid1 - first grid. This will be used for the time/space domain
      grid2 - second grid.
      flatten - true to flatten
      Returns:
      combined grid.
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • combineGrids

      public static FieldImpl combineGrids(FieldImpl grid1, FieldImpl grid2, int samplingMode, int errorMode, boolean flatten) throws VisADException, RemoteException
      Combine two Fields into one. If the grids are on different time domains, the second is resampled to the domain of the first.
      Parameters:
      grid1 - first grid. This will be used for the time/space domain
      grid2 - second grid.
      samplingMode - sampling mode (e.g. WEIGHTED_AVERAGE, NEAREST_NEIGHBOR)
      errorMode - sampling error mode (e.g. NO_ERRORS)
      flatten - false to keep tuple integrity.
      Returns:
      combined grid.
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • combineGrids

      public static FieldImpl combineGrids(FieldImpl grid1, FieldImpl grid2, int samplingMode, int errorMode, boolean flatten, boolean copy) throws VisADException, RemoteException
      Combine two Fields into one. If the grids are on different time domains, the second is resampled to the domain of the first.
      Parameters:
      grid1 - first grid. This will be used for the time/space domain
      grid2 - second grid.
      samplingMode - sampling mode (e.g. WEIGHTED_AVERAGE, NEAREST_NEIGHBOR)
      errorMode - sampling error mode (e.g. NO_ERRORS)
      flatten - false to keep tuple integrity.
      copy - copy the values during combine
      Returns:
      combined grid.
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createWindSpeed

      public static FieldImpl createWindSpeed(FieldImpl uFI, FieldImpl vFI) throws VisADException, RemoteException
      Make a FieldImpl of wind speed scalar values from u and v components.
      Parameters:
      uFI - grid of U wind component
      vFI - grid of V wind component
      Returns:
      wind speed grid
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createVectorMagnitude

      public static FieldImpl createVectorMagnitude(FieldImpl uFI, FieldImpl vFI) throws VisADException, RemoteException
      Make a FieldImpl the magnitude of the vector components
      Parameters:
      uFI - grid of U wind component
      vFI - grid of V wind component
      Returns:
      wind speed grid
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createVectorMagnitude

      public static FieldImpl createVectorMagnitude(FieldImpl vector) throws VisADException, RemoteException
      Make a FieldImpl the magnitude of the vector components
      Parameters:
      vector - vector of grid of U and V wind component
      Returns:
      wind speed grid
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createVectorMagnitude

      public static FieldImpl createVectorMagnitude(FieldImpl uFI, FieldImpl vFI, String name) throws VisADException, RemoteException
      Make a FieldImpl the magnitude of the vector components
      Parameters:
      uFI - grid of U wind component
      vFI - grid of V wind component
      name - name of the resulting value
      Returns:
      wind speed grid
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createVectorDirection

      public static FieldImpl createVectorDirection(FieldImpl vector) throws VisADException, RemoteException
      Make a FieldImpl the magnitude of the vector components
      Parameters:
      vector - vector of grid of U and V direction component
      Returns:
      flow direction grid
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createVectorDirection

      public static FieldImpl createVectorDirection(FieldImpl uFI, FieldImpl vFI) throws VisADException, RemoteException
      Make a FieldImpl the direction of the vector components
      Parameters:
      uFI - grid of U flow component
      vFI - grid of V flow component
      Returns:
      direction grid
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createHorizontalDivergence

      public static FieldImpl createHorizontalDivergence(FieldImpl uGrid, FieldImpl vGrid) throws VisADException, RemoteException
      Make a FieldImpl of horizontal wind divergence from u and v components.
      Parameters:
      uGrid - grid of U wind component
      vGrid - grid of V wind component
      Returns:
      grid of horizontal divergence
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createHorizontalFluxDivergence

      public static FieldImpl createHorizontalFluxDivergence(FieldImpl paramGrid, FieldImpl uGrid, FieldImpl vGrid) throws VisADException, RemoteException
      Make a FieldImpl of horizontal scalar flux divergence defined as u*(dp/dx) + v*(dp/dy) + p*(du/dx + dv/dy) [because the Advection() routine, returns negative the formulation is (div - adv)]
      Parameters:
      paramGrid - grid of scalar parameter
      uGrid - grid of U wind component
      vGrid - grid of V wind component
      Returns:
      grid of horizontal flux divergence of scalar
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createHorizontalAdvection

      public static FieldImpl createHorizontalAdvection(FieldImpl paramGrid, FieldImpl flowVector) throws VisADException, RemoteException
      Make a FieldImpl of horizontal scalar advection from flow vector, defined as u*(dp/dx) + v*(dp/dy)
      Parameters:
      paramGrid - grid of scalar parameter
      flowVector - grid of wind vector
      Returns:
      grid of horizontal advection of scalar
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createHorizontalAdvection

      public static FieldImpl createHorizontalAdvection(FieldImpl paramGrid, FieldImpl uGrid, FieldImpl vGrid) throws VisADException, RemoteException
      Make a FieldImpl of horizontal scalar advection from u and v components, defined as u*(dp/dx) + v*(dp/dy)
      Parameters:
      paramGrid - grid of scalar parameter
      uGrid - grid of U wind component
      vGrid - grid of V wind component
      Returns:
      grid of horizontal advection of scalar
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createConservedSounding

      public static FieldImpl createConservedSounding(FieldImpl temperFI, FieldImpl rhFI) throws VisADException, RemoteException
      Make the FieldImpl of dewpoint temperature scalar values; possibly for sequence of times
      Parameters:
      temperFI - grid of air temperature
      rhFI - grid of relative humidity
      Returns:
      dewpoint grid
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createDewpoint

      public static FieldImpl createDewpoint(FieldImpl temperFI, FieldImpl rhFI) throws VisADException, RemoteException
      Make the FieldImpl of dewpoint temperature scalar values; possibly for sequence of times
      Parameters:
      temperFI - grid of air temperature
      rhFI - grid of relative humidity
      Returns:
      dewpoint grid
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createHeatIndex

      public static FieldImpl createHeatIndex(FieldImpl temperFI, FieldImpl rhFI) throws VisADException, RemoteException
      Make the FieldImpl of heatindex scalar values; possibly for sequence of times
      Parameters:
      temperFI - grid of air temperature
      rhFI - grid of relative humidity
      Returns:
      dewpoint grid
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createEquivalentPotentialTemperature

      public static FieldImpl createEquivalentPotentialTemperature(FieldImpl temperFI, FieldImpl rhFI) throws VisADException, RemoteException
      Make a FieldImpl of Equivalent Potential Temperature; usually in 3d grids in a time series (at one or more times).
      Parameters:
      temperFI - grid of air temperature
      rhFI - grid of relative humidity
      Returns:
      grid computed mixing ratio result grids
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createEquivalentPotentialTemperature

      public static FieldImpl createEquivalentPotentialTemperature(FieldImpl temperFI, FieldImpl pressFI, FieldImpl rhFI) throws VisADException, RemoteException
      Make a FieldImpl of Equivalent Potential Temperature; usually in 3d grids in a time series (at one or more times).
      Parameters:
      temperFI - grid of air temperature
      pressFI - grid of air pressure
      rhFI - grid of relative humidity
      Returns:
      grid computed mixing ratio result grids
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • removeUnit

      public static FieldImpl removeUnit(String varname, FieldImpl field) throws VisADException
      Throws:
      VisADException

    • createRelativeHumidity

      public static FieldImpl createRelativeHumidity(FieldImpl temperFI, FieldImpl mixingRatioFI) throws VisADException, RemoteException
      Make a FieldImpl of Relative Humidity; usually in 3d grids in a time series (at one or more times).
      Parameters:
      temperFI - grid of air temperature
      mixingRatioFI - grid of mixing ratio
      Returns:
      grid computed Relative Humidity result grids
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createRelativeHumidityFromSpecificHumidity

      public static FieldImpl createRelativeHumidityFromSpecificHumidity(FieldImpl temperFI, FieldImpl specificFI) throws VisADException, RemoteException
      Make a FieldImpl of Relative Humidity; usually in 3d grids in a time series (at one or more times).
      Parameters:
      temperFI - grid of air temperature
      specificFI - grid of specific humidity
      Returns:
      grid computed Relative Humidity result grids
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createRelativeHumidityFromSpecificHumidity

      public static FieldImpl createRelativeHumidityFromSpecificHumidity(FieldImpl temperFI, FieldImpl pressFI, FieldImpl specificFI) throws VisADException, RemoteException
      Make a FieldImpl of Relative Humidity; usually in 3d grids in a time series (at one or more times).
      Parameters:
      temperFI - grid of air temperature
      pressFI - grid of air pressure
      specificFI - grid of specific humidity
      Returns:
      grid computed Relative Humidity result grids
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createEPTFromSpecificHumidity

      public static FieldImpl createEPTFromSpecificHumidity(FieldImpl temperFI, FieldImpl specificFI) throws VisADException, RemoteException
      Make a FieldImpl of Equivalent Potential Temperature; usually in 3d grids in a time series (at one or more times).
      Parameters:
      temperFI - grid of air temperature
      specificFI - grid of specific humidity
      Returns:
      grid computed mixing ratio result grids
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createEPTFromSpecificHumidity

      public static FieldImpl createEPTFromSpecificHumidity(FieldImpl temperFI, FieldImpl pressFI, FieldImpl specificFI) throws VisADException, RemoteException
      Make a FieldImpl of Equivalent Potential Temperature; usually in 3d grids in a time series (at one or more times).
      Parameters:
      temperFI - grid of air temperature
      pressFI - grid of air pressure
      specificFI - grid of specific humidity
      Returns:
      grid computed mixing ratio result grids
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createRelativeHumidity

      public static FieldImpl createRelativeHumidity(FieldImpl temperFI, FieldImpl mixingRatioFI, boolean isSpecificHumidity) throws VisADException, RemoteException
      Make a FieldImpl of Relative Humidity; usually in 3d grids in a time series (at one or more times).
      Parameters:
      temperFI - grid of air temperature
      mixingRatioFI - grid of mixing ratio
      isSpecificHumidity - is the mixingRationFI really SH?
      Returns:
      grid computed Relative Humidity result grids
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createRelativeHumidity

      public static FieldImpl createRelativeHumidity(FieldImpl temperFI, FieldImpl pressFI, FieldImpl mixingRatioFI, boolean isSpecificHumidity) throws VisADException, RemoteException
      Make a FieldImpl of Relative Humidity; usually in 3d grids in a time series (at one or more times).
      Parameters:
      temperFI - grid of air temperature
      pressFI - grid of air pressure
      mixingRatioFI - grid of mixing ratio
      isSpecificHumidity - is the mixingRationFI really SH?
      Returns:
      grid computed Relative Humidity result grids
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createMixingRatio

      public static FieldImpl createMixingRatio(FieldImpl temperFI, FieldImpl rhFI) throws VisADException, RemoteException
      Make a FieldImpl of mixing ratio values for series of times in general mr = (saturation mixing ratio) * (RH/100%);
      Parameters:
      temperFI - grid of air temperature
      rhFI - grid of relative humidity
      Returns:
      grid of computed mixing ratio
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createMixingRatio

      public static FieldImpl createMixingRatio(FieldImpl temperFI, FieldImpl pressFI, FieldImpl rhFI) throws VisADException, RemoteException
      Make a FieldImpl of mixing ratio values for series of times in general mr = (saturation mixing ratio) * (RH/100%);
      Parameters:
      temperFI - grid of air temperature
      pressFI - grid of air temperature
      rhFI - grid of relative humidity
      Returns:
      grid of computed mixing ratio
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createWRFMixingRatio

      public static FieldImpl createWRFMixingRatio(FieldImpl pFI, FieldImpl pbFI, FieldImpl temperFI, FieldImpl rhFI) throws VisADException, RemoteException
      Throws:
      VisADException
      RemoteException

    • createPotentialTemperature

      public static FieldImpl createPotentialTemperature(FieldImpl temperFI) throws VisADException, RemoteException
      Make a FieldImpl of potential temperature values for series of times of temperature grids. It's assumed that the spatialDomain of the grid has pressure as it's vertical dimension. in general theta = t * (1000/p)** .286
      Parameters:
      temperFI - one grid or a time sequence of grids of temperature with a spatial domain that includes pressure in vertical
      Returns:
      computed potential temperature grid
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createSatEquivalentPotentialTemperature

      public static FieldImpl createSatEquivalentPotentialTemperature(FieldImpl temperFI) throws VisADException, RemoteException
      Parameters:
      temperFI - one grid or a time sequence of grids of temperature with a spatial domain that includes pressure in vertical
      Returns:
      computed Saturation Equ potential temperature grid
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createPressureField

      public static FieldImpl createPressureField(FieldImpl geoPH) throws VisADException, RemoteException
      Parameters:
      geoPH - one grid or a time sequence of geo potential height with a spatial domain that includes pressure in vertical
      Returns:
      computed pressure grid
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • convertToAirPressure

      public static FieldImpl convertToAirPressure(FieldImpl press) throws VisADException, RemoteException
      Convert the pressure field to use AirPressure.getRealType as the parameter type, converting to hPa.
      Parameters:
      press - the pressure
      Returns:
      the converted field
      Throws:
      RemoteException - Java RMI Exception
      VisADException - problem in VisAD land

    • createPotentialTemperature

      public static FieldImpl createPotentialTemperature(FieldImpl temperFI, FieldImpl pressFI) throws VisADException, RemoteException
      Make a FieldImpl of potential temperature values for series of times in general theta = t * (1000/p)** .286
      Parameters:
      temperFI - grid or time sequence of grids of temperature
      pressFI - grid or time sequence of grids of pressure
      Returns:
      computed potential temperature grid
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createSatEquivalentPotentialTemperature

      public static FieldImpl createSatEquivalentPotentialTemperature(FieldImpl temperFI, FieldImpl pressFI) throws VisADException, RemoteException
      Make a FieldImpl of Saturation equivalent potential temperature values for series of times
      Parameters:
      temperFI - grid or time sequence of grids of temperature
      pressFI - grid or time sequence of grids of pressure
      Returns:
      computed potential temperature grid
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createIPV

      public static FieldImpl createIPV(FieldImpl temperFI, FieldImpl absvor) throws VisADException, RemoteException
      Make a FieldImpl of isentropic potential vorticity
      Parameters:
      temperFI - grid or time sequence of grids of temperature with a spatial domain that includes pressure in vertical
      absvor - grid or time sequence of grids of absolute vorticity
      Returns:
      computed grid(s)
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createIPV

      public static FieldImpl createIPV(FieldImpl temperFI, FieldImpl pressFI, FieldImpl absvor) throws VisADException, RemoteException
      Make a grid of isentropic potential vorticity
      Parameters:
      temperFI - grid or time sequence of grids of temperature
      pressFI - grid or time sequence of grids of pressures at levels in grid
      absvor - grid or time sequence of grids of absolute vorticity
      Returns:
      computed grid
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createPotentialVorticity

      public static FieldImpl createPotentialVorticity(FieldImpl thetaFI, FieldImpl vectorFI) throws VisADException, RemoteException
      Make a grid of isentropic potential vorticity
      Parameters:
      thetaFI - grid or time sequence of grids of theta, thetae, et
      vectorFI - grid or time sequence of grids of u and v
      Returns:
      computed grid
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createPressureGridFromDomain

      public static FlatField createPressureGridFromDomain(FlatField ff) throws VisADException, RemoteException
      Every data grid with pressure as the z coord can be used to make a grid with pressure with the grid values as well
      Parameters:
      ff - FlatField with pressure in grid domain
      Returns:
      grid of pressures
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • createPressureGrid

      public static FieldImpl createPressureGrid(FieldImpl ff) throws VisADException, RemoteException
      Every data grid with pressure as the z coord can be used to make a grid with pressure with the grid values as well
      Parameters:
      ff - FieldImpl with pressure in grid domain
      Returns:
      grid of pressures
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • combineGrids1

      public static FieldImpl combineGrids1(FieldImpl grid1, FieldImpl grid2) throws VisADException, RemoteException
      This is not working, hope to do colored by and over topo at the same time
      Parameters:
      grid1 - with u, v, h
      grid2 - other
      Returns:
      grid of altitude
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • extractGridOverThetaTopoSurface

      public static FieldImpl extractGridOverThetaTopoSurface(FieldImpl theta, float theta0) throws VisADException, RemoteException
      Every data grid with pressure as the z coord can be used to make a grid with altitude with the constant grid value
      Parameters:
      theta - FlatField with pressure in grid domain
      theta0 - constant value
      Returns:
      grid of altitude
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • extractVectorGridOverThetaTopoSurface

      public static FieldImpl extractVectorGridOverThetaTopoSurface(FieldImpl theta, FieldImpl vector, float theta0) throws VisADException, RemoteException
      Every data grid with pressure as the z coord can be used to make a grid with altitude with the constant grid value
      Parameters:
      theta - FlatField with pressure in grid domain
      vector - FlatField with pressure in grid domain
      theta0 - constant value
      Returns:
      grid of altitude
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • extractGridADVOverThetaTopoSurface

      public static FieldImpl extractGridADVOverThetaTopoSurface(FieldImpl theta, FieldImpl vector, FieldImpl other, float theta0) throws VisADException, RemoteException
      We interpolate gridded data to the theta surface and then calc the advection and create 2d topo of the advection result
      Parameters:
      theta - FlatField with pressure in grid domain
      vector - FlatField with pressure in grid domain
      other - FlatField to be advected
      theta0 - constant value
      Returns:
      grid of altitude
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • extractUVGridOverThetaTopoSurface

      public static FieldImpl extractUVGridOverThetaTopoSurface(FieldImpl theta, FieldImpl other1, FieldImpl other2, float theta0) throws VisADException, RemoteException
      Every data grid with pressure as the z coord can be used to make a grid with altitude with the constant grid value
      Parameters:
      theta - FlatField with pressure in grid domain
      other1 - FlatField with pressure in grid domain
      other2 - FlatField with pressure in grid domain
      theta0 - constant value
      Returns:
      grid of altitude
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • extractGridOverThetaTopoSurface

      public static FieldImpl extractGridOverThetaTopoSurface(FieldImpl theta, FieldImpl other, float theta0) throws VisADException, RemoteException
      Every data grid with pressure as the z coord can be used to make a grid with altitude with the constant grid value
      Parameters:
      theta - FlatField with pressure in grid domain
      other - FlatField with pressure in grid domain
      theta0 - constant value
      Returns:
      grid of altitude
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • linearInterpolateHeight

      public static float linearInterpolateHeight(float[] theta, float[] z, float theta0, boolean isDec)
      _more_
      Parameters:
      theta - _more_
      z - _more_
      theta0 - _more_
      isDec - _more_
      Returns:
      _more_

    • binaryIndexDec

      public static int binaryIndexDec(float[] a, float theta0)
      _more_
      Parameters:
      a - _more_
      theta0 - _more_
      Returns:
      _more_

    • binaryIndexInc

      public static int binaryIndexInc(float[] a, float theta0)
      _more_
      Parameters:
      a - _more_
      theta0 - _more_
      Returns:
      _more_

    • linearInterpolateHeight

      public static float linearInterpolateHeight(float[] theta, float[] other, float[] z, float theta0, boolean isDec)
      _more_
      Parameters:
      theta - _more_
      other - _more_
      z - _more_
      theta0 - _more_
      isDec - _more_
      Returns:
      _more_

    • convert3Darray

      public static float[][][] convert3Darray(FlatField grid, int ii) throws VisADException, RemoteException
      _more_
      Parameters:
      grid - _more_
      ii - _more_
      Returns:
      _more_
      Throws:
      VisADException - for bad
      RemoteException - for bad

    • convert2Darray

      public static float[][] convert2Darray(FlatField grid, int ii) throws VisADException, RemoteException
      _more_
      Parameters:
      grid - _more_
      ii - _more_
      Returns:
      _more_
      Throws:
      VisADException - for bad
      RemoteException - for bad

    • mask

      public static FieldImpl mask(FieldImpl gridToMask, FieldImpl mask, float maskValue) throws VisADException
      Mask the values in a grid with the mask
      Parameters:
      gridToMask - the grid to mask
      mask - the masking grid
      maskValue - the mask value
      Returns:
      the masked grid
      Throws:
      VisADException - Problem reading or creating VisAD data objects

    • mask

      public static FieldImpl mask(FieldImpl gridToMask, FieldImpl mask, float maskValue, boolean resampleToMask) throws VisADException
      Mask the values in a grid with the mask
      Parameters:
      gridToMask - the grid to mask
      mask - the masking grid
      maskValue - the mask value
      resampleToMask - if true, resample to the mask domain
      Returns:
      the masked grid
      Throws:
      VisADException - Problem reading or creating VisAD data objects

    • createCoriolisGrid

      public static FieldImpl createCoriolisGrid(FieldImpl input) throws VisADException, RemoteException
      Every geo-located data grid can be used to make a grid with the coriolis parameter for the grid values as well
      Parameters:
      input - Any geolocated grid
      Returns:
      extracted grid of coriolis factor (2*OMEGA*sin(lat)) at the grid points
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error

    • getLatitudeGrid

      public static FieldImpl getLatitudeGrid(FieldImpl fi) throws VisADException, RemoteException
      Every geo-located data grid can be used to make a grid with latitude with the grid values as well
      Parameters:
      fi - Any geolocated grid
      Returns:
      extracted grid of latitudes at the grid points deprecated use createLatitudeGrid(FieldImpl)
      Throws:
      RemoteException - for bad
      VisADException - for bad

    • createLatitudeGrid

      public static FieldImpl createLatitudeGrid(FieldImpl fi) throws VisADException, RemoteException
      Every geo-located data grid can be used to make a grid with latitude with the grid values as well
      Parameters:
      fi - Any geolocated grid
      Returns:
      extracted grid of latitudes at the grid points
      Throws:
      RemoteException - for bad
      VisADException - for bad

    • createLongitudeGrid

      public static FieldImpl createLongitudeGrid(FieldImpl fi) throws VisADException, RemoteException
      Every geo-located data grid can be used to make a grid with longitude with the grid values as well
      Parameters:
      fi - Any geolocated grid
      Returns:
      extracted grid of longitudes at the grid points
      Throws:
      RemoteException - for bad
      VisADException - for bad

    • mergeTracks

      public static FlatField mergeTracks(List datas) throws VisADException
      This is a duplication and should be removed later
      Parameters:
      datas - _more_
      Returns:
      _more_
      Throws:
      VisADException - _more_

    • subArray

      public static float[] subArray(float[] a, int start, int count, int strike)
      _more_
      Parameters:
      a - _more_
      start - _more_
      count - _more_
      strike - _more_
      Returns:
      _more_

    • subArray

      public static double[] subArray(double[] a, int start, int count, int strike)
      _more_
      Parameters:
      a - _more_
      start - _more_
      count - _more_
      strike - _more_
      Returns:
      _more_

    • ddx

      public static FieldImpl ddx(FieldImpl grid) throws VisADException, RemoteException
      Take the partial derivative with respect to X of the given field.
      Parameters:
      grid - grid to parialize
      Returns:
      partialized grid
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error deprecated use GridMath.ddx(FieldImpl)

    • ddy

      public static FieldImpl ddy(FieldImpl grid) throws VisADException, RemoteException
      Take the partial derivative with respect to Y of the given field.
      Parameters:
      grid - grid to parialize
      Returns:
      partialized grid
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error deprecated use GridMath.ddy(FieldImpl)

    • partial

      public static FieldImpl partial(FieldImpl grid, int domainIndex) throws VisADException, RemoteException
      Take the partial derivative with respect variable at the domain index.
      Parameters:
      grid - grid to parialize
      domainIndex - index of variable to use for derivative
      Returns:
      partialized grid
      Throws:
      RemoteException - Java RMI error
      VisADException - VisAD Error deprecated use GridMath.partial(FieldImpl, int)

    • isVector

      public static boolean isVector(FieldImpl grid) throws VisADException
      Is this a vector?
      Parameters:
      grid - grid to check
      Returns:
      true if there is more than one component
      Throws:
      VisADException - VisAD Error

    • isScalar

      public static boolean isScalar(FieldImpl grid) throws VisADException
      Is this a vector?
      Parameters:
      grid - grid to check
      Returns:
      true if there is more than one component
      Throws:
      VisADException - VisAD Error

    • getUComponent

      public static FieldImpl getUComponent(FieldImpl vector) throws VisADException
      Get U component of a vector
      Parameters:
      vector - vector quantity
      Returns:
      u (first) component or null if not a vector
      Throws:
      VisADException - VisAD Error

    • getUComponent

      public static FieldImpl getUComponent(FieldImpl vector, boolean copy) throws VisADException
      Get U component of a vector
      Parameters:
      vector - vector quantity
      copy - true to copy values
      Returns:
      u (first) component or null if not a vector
      Throws:
      VisADException - VisAD Error

    • getVComponent

      public static FieldImpl getVComponent(FieldImpl vector) throws VisADException
      Get V component of a vector
      Parameters:
      vector - vector quantity
      Returns:
      v (second) component or null if not a vector. Does not copy
      Throws:
      VisADException - VisAD Error

    • getVComponent

      public static FieldImpl getVComponent(FieldImpl vector, boolean copy) throws VisADException
      Get V component of a vector
      Parameters:
      vector - vector quantity
      copy - true to copy values
      Returns:
      v (second) component or null if not a vector.
      Throws:
      VisADException - VisAD Error

    • getComponent

      public static FieldImpl getComponent(FieldImpl vector, int index, boolean copy) throws VisADException
      Get nth component of a vector
      Parameters:
      vector - vector quantity
      index - index of component
      copy - true to copy values
      Returns:
      nth component or null in index > number of components
      Throws:
      VisADException - VisAD Error

    • createDailyClimatology

      public static FieldImpl createDailyClimatology(FieldImpl dailyData, boolean use366) throws VisADException
      Calculate a daily climatology from a grid of daily values for a period of time
      Parameters:
      dailyData - the daily data
      use366 - create a 366 day climatology
      Returns:
      the daily climatology grid
      Throws:
      VisADException - illegal grid or problem calculating climatology

    • calculateDailyAnomaly

      public static FieldImpl calculateDailyAnomaly(FieldImpl dailyData, FieldImpl dailyClim) throws VisADException
      Calculate the daily anomaly
      Parameters:
      dailyData - the daily data
      dailyClim - the climatology
      Returns:
      the daily anomaly
      Throws:
      VisADException - bad input or problem creating fields

    • calculateDailyAnomaly

      public static FieldImpl calculateDailyAnomaly(FieldImpl dailyData, FieldImpl dailyClim, boolean asPercent) throws VisADException
      Calculate the daily anomaly
      Parameters:
      dailyData - the daily data
      dailyClim - the climatology
      asPercent - return the values as a percentage of normal (+/-)
      Returns:
      the daily anomaly
      Throws:
      VisADException - bad input or problem creating fields

    • createSurfaceWindAngle

      public static FieldImpl createSurfaceWindAngle(FieldImpl gridu, FieldImpl gridv, FieldImpl gridw, double value1, String lUnit) throws VisADException, RemoteException
      Calculate the surface wind angle at certain level
      Parameters:
      gridu - wind
      gridv - wind
      gridw - wind
      value1 - value
      lUnit - unit
      Returns:
      the angle
      Throws:
      VisADException - bad input or problem creating fields
      RemoteException - for bad

    • timeStepAccumulatedPrecip

      public static FieldImpl timeStepAccumulatedPrecip(FieldImpl grid) throws VisADException
      Make the fix interval of one grid's values ;
      Parameters:
      grid - grid of data
      Returns:
      computed layer difference
      Throws:
      VisADException - VisAD Error

    • createVirtualPotentialTemperature

      public static FieldImpl createVirtualPotentialTemperature(FieldImpl pressFI, FieldImpl temperFI, FieldImpl dewPtFI) throws VisADException, RemoteException
      Calculate the VirtualPotentialTemperature
      Parameters:
      pressFI - pressure
      temperFI - temperature
      dewPtFI - dewPT
      Returns:
      the angle
      Throws:
      VisADException - bad input or problem creating fields
      RemoteException - for bad

    • createVirtualTemperature

      public static FieldImpl createVirtualTemperature(FieldImpl pressFI, FieldImpl temperFI, FieldImpl dewPtFI) throws VisADException, RemoteException
      Calculate the VirtualTemperature
      Parameters:
      pressFI - wind
      temperFI - wind
      dewPtFI - wind
      Returns:
      the angle
      Throws:
      VisADException - bad input or problem creating fields
      RemoteException - for bad

    • getIndexOfLargest

      public static int getIndexOfLargest(float[] a)

    • interpolateMaxHeight

      public static float interpolateMaxHeight(FieldImpl grid, float lat0, float lon0, float alt0) throws VisADException, RemoteException
      Throws:
      VisADException
      RemoteException

    • extractMaxGridSurface

      public static FieldImpl extractMaxGridSurface(FieldImpl theta, float theta0) throws VisADException, RemoteException
      Throws:
      VisADException
      RemoteException

    • createAirDensity

      public static FieldImpl createAirDensity(FieldImpl pressFI, FieldImpl temperFI) throws VisADException, RemoteException
      Calculate the AirDensity
      Parameters:
      pressFI - wind
      temperFI - wind
      Returns:
      the angle
      Throws:
      VisADException - bad input or problem creating fields
      RemoteException - for bad

    • createGalvezDavisonIndex

      public static FieldImpl createGalvezDavisonIndex(FieldImpl temperFI, FieldImpl rhFI) throws VisADException, RemoteException
      Calculate the Galvez-Davison Index
      Parameters:
      temperFI - temperature
      rhFI - relative humidity
      Returns:
      the gdi
      Throws:
      VisADException - bad input or problem creating fields
      RemoteException - for bad

    • createColumnBuoyancyIndex

      public static FieldImpl createColumnBuoyancyIndex(FieldImpl temperFI, FieldImpl rhFI) throws VisADException, RemoteException
      Calculate the Column Buoyancy Index
      Parameters:
      temperFI - temperature
      rhFI - relative humidity
      Returns:
      the gdi
      Throws:
      VisADException - bad input or problem creating fields
      RemoteException - for bad

    • ComputePrecipRatesDbz

      public static FieldImpl ComputePrecipRatesDbz(FieldImpl field) throws VisADException
      Calculate the radar precip rate based on Marshall-Palmer drop size distribution
      Parameters:
      field - radar reflectivity
      Returns:
      the rain rate (inches/hour)
      Throws:
      VisADException - bad input or problem creating fields

    • ComputePrecipRatesDbzFF

      public static FlatField ComputePrecipRatesDbzFF(FlatField[] grids) throws VisADException
      Throws:
      VisADException

    • ComputePrecipRatesZZDR

      public static FieldImpl ComputePrecipRatesZZDR(FieldImpl gridz, FieldImpl gridzdr) throws VisADException
      Calculate the radar precip rate based on www.chill.colostate.edu/w/Differential_Reflectivity_from_Raindrops_and_WSR-88D_Rainfall_Estimation
      Parameters:
      gridz - radar reflectivity
      gridzdr - radar differential reflectivity
      Returns:
      the rain rate (inches/hour)
      Throws:
      VisADException - bad input or problem creating fields

    • ComputePrecipRatesZZDRFF

      public static FlatField ComputePrecipRatesZZDRFF(FlatField[] gridz, FlatField[] gridzdr) throws VisADException
      Throws:
      VisADException

    • removeUnit

      public static FieldImpl removeUnit(FieldImpl field) throws VisADException
      remove unit
      Parameters:
      field - input field
      Returns:
      the new field
      Throws:
      VisADException - bad input or problem creating fields