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Viewing posts from February, 2011

Google Earth Engine displays satellite data on energy flow

Posted by Peter Donovan 13 years, 2 months ago

A 32-day Landsat EVI composite image from Google Earth Engine showing San Juan Bautista, California, from April 7 to May 9, 2010. The town is at upper left. The tan-colored areas, upper center, are farm fields. The darker green areas on the bottom are pasture lands and woodland.

Selman Waksman's HUMUS: Origin, Chemical Composition, and Importance in Nature (1936)

Posted by Peter Donovan 13 years, 2 months ago

Selman Waksman, a microbiologist who won the Nobel Prize in 1952 for the discovery of streptomycin, wrote this thorough and well-researched book on humus in 1936. It is available as a 21.6 mb pdf (text-searchable) download here.

California Grassland Carbon Challenge: What we learned, advice for moving ahead

Posted by Peter Donovan 13 years, 3 months ago

photo by Carol Hirashima
In January, 7 land managers hosted me as I sampled and established baseline sites (22 total so far) for the California Challenge. The weather was ideal.