ucar.visad.quantities

Class SaturationPointPressure

java.lang.Object

ucar.visad.quantities.Quantity

ucar.visad.quantities.ScalarQuantity

ucar.visad.quantities.Pressure

ucar.visad.quantities.AirPressure

ucar.visad.quantities.SaturationPointPressure

public final class SaturationPointPressure
extends AirPressure

Provides support for the quantity of saturation-point pressure. Saturation- point pressure is the pressure at which a parcel of air lifted dry- adiabatically will become saturated.

An instance of this class is immutable.

Version:

$Id: SaturationPointPressure.java,v 1.11 2005/05/13 18:35:43 jeffmc Exp $

Author:

Steven R. Emmerson

Nested Class Summary

Nested classes/interfaces inherited from class ucar.visad.quantities.AirPressure

AirPressure.AirPressureCoordinateSystem, AirPressure.StandardAtmosphereCoordinateSystem

Method Summary

Modifier and Type	Method and Description
static visad.Data	create(visad.Data pressure, visad.Data temperature, visad.Data saturationPointTemperature) Creates a saturation-point pressure data object from data objects for pressure, temperature, and saturation-point temperature.
protected static visad.Real	getExponent() Returns the exponent associated with this quantity.
static visad.RealTupleType	getRealTupleType() Obtains the RealTupleType associated with this class.
static visad.RealType	getRealType() Obtains the RealType associated with this class.

Methods inherited from class ucar.visad.quantities.AirPressure

fromAltitude, getStandardAtmosphereCS, toAltitude

Methods inherited from class ucar.visad.quantities.ScalarQuantity

getRealType, getRealType, realType

Methods inherited from class ucar.visad.quantities.Quantity

realTupleType, setRealTupleType

Methods inherited from class java.lang.Object

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

Method Detail

getRealType

public static visad.RealType getRealType()
                                  throws visad.VisADException

Obtains the RealType associated with this class.

Returns:

The RealType associated with this class.

Throws:

visad.VisADException - Couldn't perform necessary VisAD operation.

getRealTupleType

public static visad.RealTupleType getRealTupleType()
                                            throws visad.VisADException

Obtains the RealTupleType associated with this class.

Returns:

The RealTupleType associated with this class.

Throws:

visad.VisADException - Couldn't perform necessary VisAD operation.

getExponent

protected static visad.Real getExponent()
                                 throws visad.VisADException

Returns the exponent associated with this quantity.

Returns:

The exponent associated with this quantity.

Throws:

visad.VisADException - if a core VisAD failure occurs.

create

public static visad.Data create(visad.Data pressure,
                                visad.Data temperature,
                                visad.Data saturationPointTemperature)
                         throws visad.TypeException,
                                visad.VisADException,
                                java.rmi.RemoteException

Creates a saturation-point pressure data object from data objects for pressure, temperature, and saturation-point temperature. The empirical formula is taken from "An Introduction to Boundary Layer Meteorology" by Roland B. Stull; chapter 13 (Boundary Layer Clouds).

Parameters:

pressure - The air pressure data object.

temperature - The temperature data object.

saturationPointTemperature - The saturation-point temperature data object.

Returns:

The saturation-point pressure data object corresponding to the input arguments.

Throws:

visad.TypeException - An input argument has wrong type.

visad.VisADException - Couldn't create necessary VisAD object.

java.rmi.RemoteException - Java RMI failure.