ucar.unidata.geoloc.vertical

Class AtmosSigma

java.lang.Object

ucar.unidata.geoloc.vertical.VerticalTransformImpl

ucar.unidata.geoloc.vertical.AtmosSigma

All Implemented Interfaces:

VerticalTransform

public class AtmosSigma
extends VerticalTransformImpl

Create a 3D height(z,y,x) array using the CF formula for "atmospheric sigma vertical coordinate".

pressure(x,y,z) = ptop + sigma(z)*surfacePressure(x,y)

See Also:

http://cf-pcmdi.llnl.gov/

Field Summary

Fields

Modifier and Type	Field and Description
static String	PS Surface pressure name identifier
static String	PTOP P-naught identifier
static String	SIGMA The "depth" variable name identifier

Fields inherited from class ucar.unidata.geoloc.vertical.VerticalTransformImpl

units

Constructor Summary

Constructors

Constructor and Description
AtmosSigma(NetcdfFile ds, Dimension timeDim, List<Parameter> params) Create a new vertical transform for Ocean S coordinates

Method Summary

Modifier and Type	Method and Description
ArrayDouble.D3	getCoordinateArray(int timeIndex) Get the 3D vertical coordinate array for this time step.
ArrayDouble.D1	getCoordinateArray1D(int timeIndex, int xIndex, int yIndex) Get the 1D vertical coordinate array for this time step and point (needds test!!!)

Methods inherited from class ucar.unidata.geoloc.vertical.VerticalTransformImpl

getParameterBooleanValue, getParameterStringValue, getTimeDimension, getUnitString, isTimeDependent, readArray, subset

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

PTOP

public static final String PTOP

P-naught identifier

See Also:

Constant Field Values

PS

public static final String PS

Surface pressure name identifier

See Also:

Constant Field Values

SIGMA

public static final String SIGMA

The "depth" variable name identifier

See Also:

Constant Field Values

Constructor Detail

AtmosSigma

public AtmosSigma(NetcdfFile ds,
                  Dimension timeDim,
                  List<Parameter> params)

Create a new vertical transform for Ocean S coordinates

Parameters:

ds - dataset

timeDim - time dimension

params - list of transformation Parameters

Method Detail

getCoordinateArray

public ArrayDouble.D3 getCoordinateArray(int timeIndex)
                                  throws IOException,
                                         InvalidRangeException

Get the 3D vertical coordinate array for this time step.

Specified by:

getCoordinateArray in interface VerticalTransform

Specified by:

getCoordinateArray in class VerticalTransformImpl

Parameters:

timeIndex - the time index. Ignored if !isTimeDependent().

Returns:

vertical coordinate array

Throws:

IOException - problem reading data

InvalidRangeException - _more_

getCoordinateArray1D

public ArrayDouble.D1 getCoordinateArray1D(int timeIndex,
                                           int xIndex,
                                           int yIndex)
                                    throws IOException,
                                           InvalidRangeException

Get the 1D vertical coordinate array for this time step and point (needds test!!!)

Specified by:

getCoordinateArray1D in interface VerticalTransform

Specified by:

getCoordinateArray1D in class VerticalTransformImpl

Parameters:

timeIndex - the time index. Ignored if !isTimeDependent().

xIndex - the x index

yIndex - the y index

Returns:

vertical coordinate array

Throws:

IOException - problem reading data

InvalidRangeException - _more_