Images

Sacramento National Wildlife Refuge, CA

Grass/shrub landscape with mountains in background. Taken as part of the Land-cover Trends Project field verification process.

USGS Research Geographer Dr. Prasad Thenkabail and field assistant Sam Chaiya record the location and growth stage of a large rice paddy with a tablet in Na Yai Am District, Chanthaburi Province, Thailand.

High confidence DSWEmod water pixels (blue) from June 2016 covering South Lake Tahoe overlaid on top of a 2016 USDA NAIP image.

Carousel image of soil crust

A tidal marsh at Billy Frank Jr. Nisqually National Wildlife Refuge, WA.

A picture of a flowing stream. Water is flowing over rocks creating a small waterfall.  The vegetation along the stream bank is green and lush.

Illustration of potential state changes related to drought, fire and grazing. Native grassland sites (1) can transition (A) to non-native dominated (2) when the fire regime is altered and grazing occurs. Re-introduction of fire (B) can help restore native grasses and reduce woody plant cover (3), especially with optimal timing and amount of precipitation (C, 1).

Very old abandoned well pad site with vegetation cover. 

A mature salmon returns to a shallow stream reach to spawn. 

Photograph of partners a.) designing the study, from left to right: Ron Pulliam (BR), Valer Austin (CLO), Miguel Villarreal (USGS), Anya Schoolman (WFF), Laura Norman (USGS), and David Seibert (BR; 1/29/13)

Example of off-highway vehicles (OHV) tracks in a remote part of the Sonoran Desert.

 Desert grassland in southern New Mexico.

A photograph of Mount Adams, Washington. This image was taken as part of the Land Cover Trends Project field varification for land cover data. 

A distressed desert in the Sonoran Desert of the Barry M. Goldwater Range in Arizona

Barbara Martin about to collect a sediment sample for selenium analysis. Sample collected from the agricultural drain Trifolium 19 on the southwest side of the Salton Sea, CA.

A map of ShakeOut scenario shaking in southern California.

Mountain range in the background, forest and hay field in the foreground.  The picture was taken in Colorado during a field trip for the Land Cover Trends project.

A landscape photograph of a valley with a mountain in the background. The valley consists of forests and residential housing.

A pine forest with a dirt road running through it in Oregon. Photo taken as a part of field work during the Land Cover Trends project.

Cattle on rangeland on Mission Peak, near Fremont, California, in the San Francisco Bay area. David Amme, California Native Grasslands Association.