org.n52.operation.cropmodeling
Class TimeTools

java.lang.Object
  org.n52.operation.cropmodeling.TimeTools

public class TimeTools
extends java.lang.Object

Class with static functions related to time calculations

Author:

Willem Nieuwenhuis

Constructor Summary

protected

TimeTools()

Method Summary

static double	getDayLength(com.vividsolutions.jts.geom.Coordinate coord, JulianTime time) calculates the length of the day for this JulianTime taking the latitude into account
static JulianTime	getSunRiseToday(com.vividsolutions.jts.geom.Coordinate coord, JulianTime time) Calculate the sunrise time (in UTC) at a specific location.
static JulianTime	getSunSetToday(com.vividsolutions.jts.geom.Coordinate coord, JulianTime time) Calculate the sunset time (in UTC) at a specific location.

Methods inherited from class java.lang.Object

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

Constructor Detail

TimeTools

protected TimeTools()

Method Detail

getSunRiseToday

public static JulianTime getSunRiseToday(com.vividsolutions.jts.geom.Coordinate coord,
                                         JulianTime time)

Calculate the sunrise time (in UTC) at a specific location. This calculation uses simplified calculkation based only on latitude

Parameters:

coord - the location

time - the juliant time

Returns:

juliant time indicating the time of sunrise

getSunSetToday

public static JulianTime getSunSetToday(com.vividsolutions.jts.geom.Coordinate coord,
                                        JulianTime time)

Calculate the sunset time (in UTC) at a specific location. This calculation uses simplified calculkation based only on latitude

Parameters:

coord - the location

time - the juliant time

Returns:

juliant time indicating the time of sunset

getDayLength

public static double getDayLength(com.vividsolutions.jts.geom.Coordinate coord,
                                  JulianTime time)

calculates the length of the day for this JulianTime taking the latitude into account

Returns:

length of day in hours