Specifies the time to simulate.
time YYYY MM DD hh mm ss
where YYYY is the year, MM the month, DD the day, hh the hour, mm the minute, ss the second in UTC. The time information will be used for a couple of things:

time in combination with latitude, longitude, and any map-option is used to select the location where to read the input data.

time is used to correct extraterrestrial irradiance for the Sun-Earth distance with the day of year. If not given, the Earth-Sun distance is 1 AU (i.e. equinox distance).

time in combination with latitude and longitude is used to calculate the solar zenith angle if no sza is specified.

time in combination with latitude and longitude is used to choose a suitable default atmosphere file, if no atmosphere_file is specified.

time in combination with an ECMWF_atmosphere_file is used to choose a date in the ECMWF input file.





Arve Kylling 2010-03-10