Earth's Diurnal Radiation Budget

Computing solar and longwave radiative fluxes over a day

Control parameters:
Radiation scheme
Solar constant (1370 W/m2)
Latitude (-90o—90o)
Calendar day (1—365, 1 = Jan 1st)
Surface albedo (0—100%)
Temperature structure:
Ground temperature (oC)
Near-surface air temperature (oC)
Lapse rate (oC/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 (oC)
Tropopause height (km)

Greenhouse gases:
CO2 mixing ratio (ppmv)
CH4 mixing ratio (ppmv)
N2O mixing ratio (ppmv)
Cloud height (0—15 km)
Cloud fraction (0—100%)
Cloud water content (0—100 g/m2)
Cloud droplet size (4—30 micron)

Web interface developed by Ray Pierrehumbert, David Archer, Rodrigo Caballero and Mike Steder. Built using CliMT