fr.cnes.sirius.patrius.signalpropagation

Class MeteorologicalConditions

java.lang.Object

fr.cnes.sirius.patrius.signalpropagation.MeteorologicalConditions

All Implemented Interfaces:

Serializable

public class MeteorologicalConditions
extends Object
implements Serializable

Simple container for pressure/temperature/humidity (PTH) triplets to describe meteorological conditions.

Instances of this class are guaranteed to be immutable.

Author:

bonitt

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static double	ABSOLUTE_ZERO Absolute zero for temperatures.
static double	H0 Standard reference altitude [m].
static double	P0 Standard reference pressure [Pa].
static double	RH0 Standard reference relative humidity [%].
static MeteorologicalConditions	STANDARD Standard meteorological conditions: P0, T0 (in [°K]) and RH0.
static double	T0 Standard reference temperature [°C].

Constructor Summary

Constructors

Constructor and Description
MeteorologicalConditions(double pressure, double temperature, double humidity) Standard meteorological conditions constructor with all the variables set at once.

Method Summary

Modifier and Type	Method and Description
static MeteorologicalConditions	computeStandardValues(double altitude) Computes standard model values [P, T, R] for provided altitude with standard reference values [P0, T0, RH0] provided by tropospheric models : P = pressure [Pa] - P0 = 101325 [Pa] T = temperature [K] - T0 = 18 [°C] RH = humidity rate [%] - RH0 = 50 [%]
static MeteorologicalConditions	computeStandardValues(MeteorologicalConditions referenceMeteoConditions, double referenceAltitude, double altitude) Computes standard model values [P, T, RH] for provided altitude given reference values [P0, T0, RH0 H0] with: P = pressure [Pa] T = temperature [K] RH = relative humidity [%]
boolean	equals(Object object)
double	getHumidity() Getter for the relative humidity [%].
double	getPressure() Getter for the pressure [Pa].
double	getTemperature() Getter for the temperature [°K].
int	hashCode()
static MeteorologicalConditions	mean(Collection<MeteorologicalConditions> meteoConditionsCollection) Compute the mean of the meteorological conditions
String	toString() Get a String representation of this meteorological conditions.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

P0

public static final double P0

Standard reference pressure [Pa].

See Also:

Constant Field Values

T0

public static final double T0

Standard reference temperature [°C].

See Also:

Constant Field Values

RH0

public static final double RH0

Standard reference relative humidity [%].

See Also:

Constant Field Values

H0

public static final double H0

Standard reference altitude [m].

See Also:

Constant Field Values

ABSOLUTE_ZERO

public static final double ABSOLUTE_ZERO

Absolute zero for temperatures.

See Also:

Constant Field Values

STANDARD

public static final MeteorologicalConditions STANDARD

Standard meteorological conditions: P0, T0 (in [°K]) and RH0.

Constructor Detail

MeteorologicalConditions

public MeteorologicalConditions(double pressure,
                                double temperature,
                                double humidity)

Standard meteorological conditions constructor with all the variables set at once.

Parameters:

pressure - Pressure [Pa]

temperature - Temperature [°K]

humidity - Relative humidity [%]

Throws:

NotPositiveException - if pressure < 0

NotStrictlyPositiveException - if temperature <= 0

OutOfRangeException - if humidity < 0 or if humidity > 100

Method Detail

getPressure

public double getPressure()

Getter for the pressure [Pa].

Returns:

the pressure

getTemperature

public double getTemperature()

Getter for the temperature [°K].

Returns:

the temperature

getHumidity

public double getHumidity()

Getter for the relative humidity [%].

Returns:

the relative humidity

mean

public static MeteorologicalConditions mean(Collection<MeteorologicalConditions> meteoConditionsCollection)

Compute the mean of the meteorological conditions

Parameters:

meteoConditionsCollection - set of meteo conditions to average

Returns:

mean values of meteo conditions

computeStandardValues

public static MeteorologicalConditions computeStandardValues(MeteorologicalConditions referenceMeteoConditions,
                                                             double referenceAltitude,
                                                             double altitude)

Computes standard model values [P, T, RH] for provided altitude given reference values [P0, T0, RH0 H0] with:

• P = pressure [Pa]
• T = temperature [K]
• RH = relative humidity [%]

Parameters:

referenceMeteoConditions - reference temperature, pressure and relative humidity

referenceAltitude - reference altitude

altitude - altitude for which values [P, T, RH] should be returned

Returns:

[P, T, RH] values

computeStandardValues

public static MeteorologicalConditions computeStandardValues(double altitude)

Computes standard model values [P, T, R] for provided altitude with standard reference values [P0, T0, RH0] provided by tropospheric models :

• P = pressure [Pa] - P0 = 101325 [Pa]
• T = temperature [K] - T0 = 18 [°C]
• RH = humidity rate [%] - RH0 = 50 [%]

Parameters:

altitude - altitude for which values [P, T, RH] should be returned

Returns:

standard model values [P, T, RH]

toString

public String toString()

Get a String representation of this meteorological conditions.

Overrides:

toString in class Object

Returns:

a String representation of this meteorological conditions

equals

public boolean equals(Object object)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object