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Shumagin Geomagnetic Observatory
Front gates at Shumagin Geomagnetic Observatory during installation, before landscaping to eliminate standing water....
Shumagin Geomagnetic Observatory
Sand Point, AK magnetic observatory, Popoff Island, Shumagin Island group Alaska....
Shumagin Geomagnetic Observatory
Sand Point, AK magnetic observatory, Popoff Island, Shumagin Island group Alaska....
Shumagin Geomagnetic Observatory
Sand Point, AK magnetic observatory, Popoff Island, Shumagin Island group Alaska....
Joshua Trees in Inyo Mountains above Eureka Valley, CA
Scattered mature Joshua trees in this northernmost stand of Joshua trees are surrounded by abundant seedlings and saplings. Recent climates, and General Circulation Model results of future climates, portray this area as being suitable for the survival and expansion of Joshua trees....
Joshua Trees at Pierce Ferry, AZ
This image, from April 2004, shows mortality of some adult Joshua trees resulting from years of hot-dry climate. During the prior year, this area received only 17 percent of its average precipitation and was 4 degrees F warmer than average -- conditions that are projected to become even more frequen... |