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Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Raster (1) Types Map Service (2) Downloadable (1) GeoTIFF (1) OGC WFS Layer (1) OGC WMS Layer (1) OGC WMS Service (1) Raster (1) Contacts U.S. Geological Survey - ScienceBase Northern Prairie Wildlife Research Center Laura Brothers Brian D Andrews David S Foster More... Tag Types Theme (5) Tags (with Scheme=SO 19115 Topic Category) biota (1) geoscientificinformation (1) imagerybasemapsearthcover (1) inlandwaters (1) oceans (1) View Results as: JSON ATOM CSV

Wetland plants of the Yellowknife Study Area, 1961-1962 The Yellowknife Study Area (YSA),Northwest Territories, Canada, was established in 1961 by H. W. Murdy, U.S. Fish and Wildlife Service, for the study of wetland and waterfowl ecology. The study area is located on the western edge of the Precambrian Shield and edge of the taiga and is recognized for its high wetland densities and waterfowl abundance. The region is underlain by discontinuous, warm permafrost and hence vulnerable to a warming climate. The completion of Highway 3 in early 1960s provided the first access to the region for development, research, and monitoring. The YSA is a 38-square km area centered on Highway 3, extending 48 km in length. In the 1960s, it encompassed 262 natural ponds and 313 man-made... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Botany, Great Slave Lake, Northwest Territories, USGS Science Data Catalog (SDC), Yellowknife Study Area, All tags... aquatic plants, biota, boreal wetlands, botany, freshwater ecosystems, inlandWaters, plant communities, plants, wetlands, Fewer tags 5-m backscatter mosaic from south and west of Martha's Vineyard and north of Nantucket produced from sidescan-sonar and interferometric backscatter datasets Geologic, sediment texture, and physiographic zone maps characterize the sea floor south and west of Martha's Vineyard and north of Nantucket, Massachusetts. These maps were derived from interpretations of seismic-reflection profiles, high-resolution bathymetry, acoustic-backscatter intensity, bottom photographs, and surficial sediment samples. The interpretation of the seismic stratigraphy and mapping of glacial and Holocene marine units provided a foundation on which the surficial maps were created. This mapping is a result of a collaborative effort between the U.S. Geological Survey and the Massachusetts Office of Coastal Zone Management to characterize the surface and subsurface geologic framework offshore of... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Aquinnah, Atlantic Ocean, CMGP, CZM, Cape Cod, All tags... Chappaquiddick Island, Children's Beach, Chilmark, Coastal and Marine Geology Program, Coatue, Dionis Beach, Eel Point, Gay Head, GeoTIFF, Great Point, Katama Beach, Klein 3000, Long Point Wildlife Refuge, Lucy Vincent Beach, Martha's Vineyard, Massachusetts, Massachusetts Office of Coastal Zone Management, Muskeget Channel, Muskeget Island, Nantucket, Nantucket Harbor, Nantucket Sound, Nomans Land, SWATHplus-M, Shovelful Shoal, South Beach, Squibnocket Beach, Squibnocket Point, Tisbury, Tisbury Great Pond Beach, Tuckernuck Bank, Tuckernuck Island, Tuckernuck Shoal, U.S. Geological Survey, U.S. Geological Survey Open-File Report 2008-1288, U.S. Geological Survey Open-File Report 2012-1006, U.S. Geological Survey Open-File Report 2016-1168, USGS, Vineyard Sound, WHCMSC, Wasque Shoal, Wasque point, Woods Hole Coastal and Marine Science Center, backscatter, composite image, geoscientificInformation, grey scale, image collections, imageryBaseMapsEarthCover, interferometric backscatter, interferometric sonar, marine geophysics, mosaic, oceans, remote sensing, sea-floor acoustic reflectivity, sea-floor characteristics, sidescan, sidescan sonar, sidescan sonar, Fewer tags