The Reasons for Seasons: How the Earth and Sun interact to Create Seasons


The maps of global images showing solar insulation are 24 year (1984-2007) monthly averages of surface incoming shortwave radiation and were provided by NASA from the GEWEX SRB Shortwave Release 3 algorithm.

The scale for the maps (units are Watts / m2):

When you click on a red dot the average high and low temperature plot will appear (the city you selected is shown with bold lines; the previously selected city is also shown for comparison).

Applet Copyright (2010) by Tom Whittaker and Tommy Jasmin.