Package net.simplace.sim.components.util.helper

Class AstronomicParametersCalculator

java.lang.Object

net.simplace.sim.components.util.helper.AstronomicParametersCalculator

public class AstronomicParametersCalculator
extends Object

Methods for calculating daylength and diurnal values WIKI_START Includes methods for integration/normalization/rescaling of piecewise linear functions, as well as methods for calculating diurnal values for radiation and temperature. == Reference == (G) Goudriaan, Modeling Potential Crop Growth Processes, 1994, (revised version Nov. 2004) WIKI_END

Author:

Gunther Krauss

Constructor Summary

Constructors

Constructor	Description
AstronomicParametersCalculator()

Method Summary

Modifier and Type	Method	Description
static HashMap<String,Double>	AstronomicParameters(int doy, double latitude)	Calculates day length and other parameters from DOY and latitude
static HashMap<String,Double>	AstronomicParameters(int doy, double latitude, double inclination)	Calculates day length and other parameters from DOY, latitude and sun inclination

Methods inherited from class java.lang.Object

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

Constructor Details

AstronomicParametersCalculator

public AstronomicParametersCalculator()

Method Details

AstronomicParameters

public static HashMap<String,Double> AstronomicParameters(int doy,
 double latitude)

Calculates day length and other parameters from DOY and latitude

Parameters:

doy - Day of year (from 1 to 366)

latitude - Latitude in degrees

Returns:

HashMap with values for Daylength, PhotoperiodicDaylength, SolarConstant, a, b, DSINB, DSINBE, SinBetaArea

AstronomicParameters

public static HashMap<String,Double> AstronomicParameters(int doy,
 double latitude,
 double inclination)

Calculates day length and other parameters from DOY, latitude and sun inclination

Parameters:

doy - Day of year (from 1 to 366)

latitude - Latitude in degrees

inclination - Sun inclination in degrees

Returns:

HashMap with values for Daylength, PhotoperiodicDaylength, SolarConstant, a, b, DSINB, DSINBE, SinBetaArea