IGIS

California Surveying and Drafting recently installed a GPS/GLONASS base station antenna on McCone Hall and to reciprocate theyre allowing Berkeley researchers to use the real-time correction signal for free.

IGIS is pleased to announce the introduction of online office hours for all ANR staff and IGIS workshop participants. Every Monday from 4-5 pm, we'll be available on Zoom eager to discuss all things GIS.

Nice post from Mark Tuckman regarding the use of the recently digitized historical Soil-Vegetation maps from Sonoma County. http://sonomavegmap.

Between the years 1949-1979 the Pacific Southwest research station branch of the U.S. Forest service published two series of maps: 1) The Soil-Vegetation Maps, and 2) Timber Stand Vegetation Maps.

Notes on where to find historical aerial imagery (thanks to Kass Green): The USDA has an archive of aerial imagery in Salt Lake City at APFOhttp://www.fsa.usda.gov/programs-and-services/aerial-photography/index. There is a ArcGIS online map of the tiles and dates of this photos.