The following graphics show the daily amount of energy incident
on the ground for a given day. These values are calculated
using GOES-9, GOES-10, GOES-12 and METEOSAT-7 visible satellite
images for each daylight hour. The approximate amount
of energy reaching the ground is calculated for each image.
This model takes into account the effect of clouds if there
are clouds present. Every night, the images are integrated
together to give the estimated total amount of energy reaching
the ground from the sun.
These values are based on a model developed by Dr. George Diak
(CIMSS) and Dr. John Mecikalski (CIMSS/University of Alabama
Contact person: Dr. John R. Mecikalski
For more information about how these values are calculated see:
Diak, G. R., W. L. Bland, and J. R. Mecikalski.
"A note on first estimates of surface insolation
from GOES-8 visible satellite data." Ag. For. Meteor. 1996:
Otkin, J. A., M. C. Anderson, G. R. Diak, and J. R.
Mecikalski, 2004: Vaidation of GOES-based insolation
estimates using data from the United States climate reference
network. Submitted. J. Hydrometeor.
Eastern North America
Western North Americ
Other Solar Insolation Images:
Land Surface Group
Soil Science Web Page
America Plot Information
• Noon Satellite Image