程序包 org.meteoinfo.math.meteo

类 MeteoMath

java.lang.Object

org.meteoinfo.math.meteo.MeteoMath

public class MeteoMath
extends java.lang.Object

作者:

yaqiang

构造器概要

构造器

构造器	说明
MeteoMath()

方法概要

修饰符和类型	方法	说明
static double	cal_E(double es, double rh)	Calculate actual vapor pressure (E) of the air
static double	cal_Es(double tc)	Calculate saturation vapor pressure
static double	cal_Es_1(double tc)	Calculate saturation vapor pressure (Es)
static double	cal_Es_2(double tc)	Calculate saturation vapor pressure (Es)
static double	cal_Tdc(double e)	Calculate dewpoint from actual water vapor pressure
static double	cal_Tdc(double t, double rh)	Calculate dewpoint from temperature and relative humidity
static double	cal_Tdc_1(double e)	Calculate dewpoint temperature
static double	cal_Tdc_1(double tc, double rh)	Calculate dewpoint temperature
static Array	calSeaPrs(Array z, Array t, Array p, Array q)	Estimate sea level pressure
static Array	calSeaPrs_bak(Array z, Array t, Array p, Array q)	Estimate sea level pressure
static double	dewpoint2rh(double tc, double tdc)	Calculate relative humidity from dewpoint
static Array	dewpoint2rh(Array tdc, Array tc)	Calculate relative humidity from dewpoint
static double[]	ds2uv(double windDir, double windSpeed)	Get wind U/V components from wind direction and speed
static Array[]	ds2uv(Array windDir, Array windSpeed)	Get wind U/V components from wind direction and speed
static double	height2Press(double height)	Calculate pressure frmo height
static Array	height2Press(Array height)	Calculate pressure from height
static double	press2Height(double press)	Calculate height from pressure
static Array	press2Height(Array press)	Calculate height from pressure
static double	qair2rh(double qair, double tc, double press)	Calculate relative humidity from specific humidity
static Array	qair2rh(Array qair, Array temp, double press)	Calculate relative humidity from specific humidity
static Array	qair2rh(Array qair, Array temp, Array press)	Calculate relative humidity
static double	rh2dewpoint(double rh, double t)	Calculate dewpoint from relative humidity and temperature
static Array	rh2dewpoint(Array rh, Array tc)	Calculate dewpoint from relative humidity and temperature
static double	tc2tf(double tc)	Calculate fahrenheit temperature from celsius temperature
static Array	tc2tf(Array tc)	Calculate fahrenheit temperature from celsius temperature
static double	tf2tc(double tf)	Calculate celsius temperature from fahrenheit temperature
static Array	tf2tc(Array tf)	Calculate celsius temperature from fahrenheit temperature
static double[]	uv2ds(double u, double v)	Get wind direction and wind speed from U/V
static Array[]	uv2ds(Array u, Array v)	Get wind direction and wind speed from U/V

从类继承的方法 java.lang.Object

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

构造器详细资料

MeteoMath

public MeteoMath()

方法详细资料

cal_Es

public static double cal_Es(double tc)

Calculate saturation vapor pressure

参数:

tc - Air temperature

返回:

Saturation vapor pressure

cal_Es_1

public static double cal_Es_1(double tc)

Calculate saturation vapor pressure (Es)

参数:

tc - Air temperature

返回:

Saturation vapor pressure

cal_Es_2

public static double cal_Es_2(double tc)

Calculate saturation vapor pressure (Es)

参数:

tc - Air temperature - degree C

返回:

Saturation vapor pressure

cal_Tdc

public static double cal_Tdc(double e)

Calculate dewpoint from actual water vapor pressure

参数:

e - Actural water vapor pressure

返回:

Dewpoint

cal_Tdc

public static double cal_Tdc(double t,
                             double rh)

Calculate dewpoint from temperature and relative humidity

参数:

t - Temperature

rh - Relative humidity

返回:

Dewpoint

dewpoint2rh

public static double dewpoint2rh(double tc,
                                 double tdc)

Calculate relative humidity from dewpoint

参数:

tc - Temperature

tdc - Dewpoint temperature

返回:

Relative humidity as percent (i.e. 80%)

dewpoint2rh

public static Array dewpoint2rh(Array tdc,
                                Array tc)

Calculate relative humidity from dewpoint

参数:

tdc - Dewpoint temperature

tc - Temperature

返回:

Relative humidity as percent (i.e. 80%)

rh2dewpoint

public static double rh2dewpoint(double rh,
                                 double t)

Calculate dewpoint from relative humidity and temperature

参数:

rh - Relative humidity

t - Temperature

返回:

Dewpoint

rh2dewpoint

public static Array rh2dewpoint(Array rh,
                                Array tc)

Calculate dewpoint from relative humidity and temperature

参数:

rh - Dewpoint temperature

tc - Temperature

返回:

Relative humidity as percent (i.e. 80%)

qair2rh

public static double qair2rh(double qair,
                             double tc,
                             double press)

Calculate relative humidity from specific humidity

参数:

qair - Specific humidity, dimensionless (e.g. kg/kg) ratio of water mass / total air mass

tc - Temperature - degree c

press - Pressure - hPa (mb)

返回:

Relative humidity as percent (i.e. 80%)

cal_Tdc_1

public static double cal_Tdc_1(double e)

Calculate dewpoint temperature

参数:

e - Actual vapor pressure

返回:

Dewpoint temperature (celsius)

cal_Tdc_1

public static double cal_Tdc_1(double tc,
                               double rh)

Calculate dewpoint temperature

参数:

tc - Air temperature

rh - Relative humidity

返回:

Dewpoint temperature (celsius)

tf2tc

public static double tf2tc(double tf)

Calculate celsius temperature from fahrenheit temperature

参数:

tf - Fahrenheit temperature

返回:

Celsius temperature

tc2tf

public static double tc2tf(double tc)

Calculate fahrenheit temperature from celsius temperature

参数:

tc - Celsius temperature

返回:

Fahrenheit temperature

cal_E

public static double cal_E(double es,
                           double rh)

Calculate actual vapor pressure (E) of the air

参数:

es - Saturation vapor pressure

rh - Relative humidity

返回:

Actual vapor pressure

press2Height

public static double press2Height(double press)

Calculate height from pressure

参数:

press - Pressure - hPa

返回:

Height - meter

height2Press

public static double height2Press(double height)

Calculate pressure frmo height

参数:

height - Height - meter

返回:

Pressure - hPa

calSeaPrs

public static Array calSeaPrs(Array z,
                              Array t,
                              Array p,
                              Array q)

Estimate sea level pressure

参数:

z - Height (m)

t - Temperature array (K)

p - Pressure array (Pa)

q - Mixing ratio (kg/kg)

返回:

Sea level pressure (Pa)

calSeaPrs_bak

public static Array calSeaPrs_bak(Array z,
                                  Array t,
                                  Array p,
                                  Array q)

Estimate sea level pressure

参数:

z - Height (m)

t - Temperature array (K)

p - Pressure array (Pa)

q - Mixing ratio (kg/kg)

返回:

Sea level pressure (Pa)

tc2tf

public static Array tc2tf(Array tc)

Calculate fahrenheit temperature from celsius temperature

参数:

tc - Celsius temperature

返回:

Fahrenheit temperature

tf2tc

public static Array tf2tc(Array tf)

Calculate celsius temperature from fahrenheit temperature

参数:

tf - Fahrenheit temperature

返回:

Celsius temperature

qair2rh

public static Array qair2rh(Array qair,
                            Array temp,
                            double press)

Calculate relative humidity from specific humidity

参数:

qair - Specific humidity, dimensionless (e.g. kg/kg) ratio of water mass / total air mass

temp - Temperature - degree c

press - Pressure - hPa (mb)

返回:

Relative humidity as percent (i.e. 80%)

qair2rh

public static Array qair2rh(Array qair,
                            Array temp,
                            Array press)

Calculate relative humidity

参数:

qair - Specific humidity, dimensionless (e.g. kg/kg) ratio of water mass / total air mass

temp - Temperature - degree c

press - Pressure - hPa (mb)

返回:

Relative humidity as percent (i.e. 80%)

press2Height

public static Array press2Height(Array press)

Calculate height from pressure

参数:

press - Pressure - hPa

返回:

Height - m

height2Press

public static Array height2Press(Array height)

Calculate pressure from height

参数:

height - Height - m

返回:

Pressure - hPa

uv2ds

public static Array[] uv2ds(Array u,
                            Array v)

Get wind direction and wind speed from U/V

参数:

u - U component

v - V component

返回:

Wind direction and wind speed

uv2ds

public static double[] uv2ds(double u,
                             double v)

Get wind direction and wind speed from U/V

参数:

u - U component

v - V component

返回:

Wind direction and wind speed

ds2uv

public static Array[] ds2uv(Array windDir,
                            Array windSpeed)

Get wind U/V components from wind direction and speed

参数:

windDir - Wind direction

windSpeed - Wind speed

返回:

Wind U/V components

ds2uv

public static double[] ds2uv(double windDir,
                             double windSpeed)

Get wind U/V components from wind direction and speed

参数:

windDir - Wind direction

windSpeed - Wind speed

返回:

Wind U/V components