Earth's Diurnal Radiation Budget
Computing solar and longwave radiative fluxes over a day
Control parameters:
Radiation scheme
CCM3
Chou
Solar constant (1370 W/m
2
)
Latitude (-90
o
—90
o
)
Calendar day (1—365, 1 = Jan 1st)
Surface albedo (0—100%)
Temperature structure:
Ground temperature (
o
C)
Near-surface air temperature (
o
C)
Lapse rate (
o
C/km)
Tropopause height (km)
Water vapor:
Relative humidity (0—100%)
Dry stratosphere
Determine water content according to actual temperature.
Fix water content at values corresponding to the following:
Near-surface air temperature (
o
C)
Tropopause height (km)
Greenhouse gases:
CO2 mixing ratio (ppmv)
CH4 mixing ratio (ppmv)
N2O mixing ratio (ppmv)
Clouds:
Cloud height (0—15 km)
Cloud fraction (0—100%)
Cloud water content (0—100 g/m
2
)
Cloud droplet size (4—30 micron)
Web interface developed by
Ray Pierrehumbert
,
David Archer
,
Rodrigo Caballero
and
Mike Steder.
Built using
CliMT