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The California Coastal Records Project, founded in 2002, [1] documents the California coastline with aerial photos taken from a helicopter flying parallel to the shore. Their webpage provides access to these images. One photo was taken every 500 feet. [2] [3] Each photo showed a few hundred yards of the coastline, with frames overlapping. [4]
The site had black and white USGS aerial photographs of approximately 97% of the United States. In 2000, the USGS launched the new Urban Areas program, which will ultimately take high-resolution color aerial photographs of about 100 major American cities. [2] [3] MSR Maps had Urban Areas data for 40 cities. [citation needed]
The National Map is part of the USGS National Geospatial Program. [3] The geographic information available includes orthoimagery (aerial photographs), elevation, geographic names, hydrography, boundaries, transportation, structures and land cover. The National Map is accessible via the Web, as products and services, and as downloadable data ...
The USGS Library Photographic Collection is an archive of more than 500,000 still photographs, color transparencies, negatives, glass plate negatives, lantern slides and sketches and color transparencies taken during geologic studies of the United States and its territories from 1868 to present. Subjects include earthquakes, volcanoes ...
As proper interpretation of aerial photos can reveal historical changes of the topography and the details of previous landslides, it can be help determine whether an area is stable or not. [5] [4] Geologists can further utilize the interpretations to design the most favorable locations for field studies and the acquisition of data. [5]
United States Geological Survey marker on the summit of Maiden Peak (Washington) While much less expensive to compile and produce, the revised digital U.S. topo maps have been criticized for a lack of accuracy and detail in comparison to older generation maps based on aerial photo surveys and field checks. [33]
Media in category "United States Geological Survey images" The following 122 files are in this category, out of 122 total. Back Brook, New Jersey (map).jpg 1,401 × 584; 117 KB
The commission looked into three main issues: the role of geodesy in the U.S. government's scientific efforts and whether responsibility for inland geodetics should reside in the U.S. Coast and Geodetic Survey or the U.S. Geological Survey; whether the Coast and Geodetic Survey should be removed from the Department of the Treasury and placed ...