程序包 org.meteoinfo.math.astro

类 AstroUtil

java.lang.Object

org.meteoinfo.math.astro.AstroUtil

public class AstroUtil
extends Object

作者:

Yaqiang Wang

构造器概要

构造器

构造器	说明
AstroUtil()

方法概要

限定符和类型	方法	说明
static Object[]	CALDAT(double mjd)	Inverse procedure to MJD
static double	GMST2UT(double mjd, double gmst)	Greenwich Mean Sideral to Universal time
static double	LMST(double mjd, double lon)	Local mean sideral time [decimal hours] single precision longitude, west positiv
static double	MJD(int year, int month, int day, double noon)	Calculate modified julian day (JD - 2400000.5)
static double[]	sun2000(double t2000)	Solar ephemerides
static double[]	sunEqu(double T)	!
static double	TOMSozone(int month, double latitude)	my own evaluation of TOMS monthly zonal averages from 1989 until 1999 !

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

AstroUtil

public AstroUtil()

方法详细资料

MJD

public static double MJD(int year,
                         int month,
                         int day,
                         double noon)

Calculate modified julian day (JD - 2400000.5)

参数:

year - Year

month - Month

day - Day

noon - Local mean time noon in UT (12. - longitude / 15.)

返回:

CALDAT

public static Object[] CALDAT(double mjd)

Inverse procedure to MJD

参数:

mjd - MJD

返回:

Array of year, month, day, hour

LMST

public static double LMST(double mjd,
                          double lon)

Local mean sideral time [decimal hours] single precision longitude, west positiv

参数:

mjd - Modified Julian day

lon - Longitude

返回:

Local mean sideral time

GMST2UT

public static double GMST2UT(double mjd,
                             double gmst)

Greenwich Mean Sideral to Universal time

参数:

mjd - Modified Julian day

gmst - Greenwich Mean Sideral time.

返回:

Unversal time

sun2000

public static double[] sun2000(double t2000)

Solar ephemerides

参数:

t2000 -

返回:

sunEqu

public static double[] sunEqu(double T)

!鋛uatoriale Sonnenkoordinaten Rektaszension RA, Deklination in Grad !Rad in Erdradien, T in julian.Jhdt. seit J2000 !Die Koordinaten beziehen sich auf das wahre Aequinoktium des Datums

参数:

T -

返回:

TOMSozone

public static double TOMSozone(int month,
                               double latitude)

my own evaluation of TOMS monthly zonal averages from 1989 until 1999 ! 36 latitudinal bands of 5?and 12 months, zero in polar nights

参数:

month - Month

latitude - Latitude

返回:

Ozone value