Executive Summary Errors associated with geospatial data can propagate through natural-science (biologic, geographic, geologic, geospatial, and hydrologic) models that utilize raster processing, resulting in significant and spatially variable prediction uncertainty. This inherent prediction uncertainty affects how model results are interpreted by scientists, environmental regulators, resource m...

1 NASA/GSFC, Code 618, Greenbelt, MD 20771, USA; E-Mail: [email protected]; Tel.: +1-301-614-6608 2 Stinger Ghaffarian Technologies (SGT), Technical Support Services Contractor to USGS EROS, NASA/GSFC Mail Code 618, Greenbelt, MD 20771, USA; E-Mail: [email protected]; Tel.: +1-301-614-6683 3 USGS Earth Resources Observation and Science (EROS) Center, 47914 252nd Street, Sioux Falls...

Assessing long-term variations in sagebrush habitat – characterization of spatial extents and distribution patterns using multi-temporal satellite remote-sensing data George Xian a , Collin Homer b & Cameron Aldridge c a ARTS, US Geological Survey (USGS) Earth Resources Observation and Science Center, Sioux Falls, SD, 57198, USA b US Geological Survey (USGS) Earth Resources Observation and Scie...

1 Department of Geography and Program in Planning, University of Toronto, 100 St, George St, Room 5047, Toronto, Ontario, Canada M5S 3G3 2 Natural Resources Canada, Canadian Forest Service, 5320–122nd St, Edmonton, AB, Canada T6H 3S5 3 SAIC, US Geological Survey, EROS Data Center, Sioux Falls, South Dakota 57198, USA 4 Research Associateship Programs, National Research Council, at USGS EROS Dat...

The California Institute ofTechnology (Caltech), the United States Geological Survey (USGS), and the California Department of Conservation, Division of Mines and Geology (CDMG) are completing the implementation of TriNet, a modern seismic information system for southern California. TriNet consists of two elements, the Caltech-USGS element and the CDMG element (Mori eta!., 1998). The CaltechUSGS...

What is the chance that an earthquake of magnitude 6.7 or greater will occur before the year 2030 in the San Francisco Bay Area? The U.S. Geological Survey estimated the chance to be 0.7 ± 0.1 (USGS, 1999). In this paper, we try to interpret such probabilities. Making sense of earthquake forecasts is surprisingly difficult. In part, this is because the forecasts are based on a complicated mixtu...

In the fall of 2001, NASA’s Deep Space 1 (DS1) probe imaged Comet Borrelly during a flyby encounter. Three of the Borrelly images have geometry suitable to photogrammetrically map the nucleus, which form two stereopairs with an expected precision (EP) of ~410 m and ~670 m each. DS1 team members at the USGS and DLR have independently produced digital elevation models (DEMs) of Borrelly. Automati...