Found 43 datasets matching "Topographic Sheet".
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NOS coastal survey maps (often called t-sheet or tp-sheet maps) are special use planimetric or topographic maps that precisely define the shoreline and alongshore natural and man-made features,...
Search relevance: 74.51 | Views last month: 0 -
By engaging 30 reserves from across the country in habitat mapping, this project highlighted differing trends among regions and estuarine habitat types. Working with local and national end users,...
Search relevance: 65.76 | Views last month: 0 -
This data set reports surface grain size estimates of snow and ice using waveform measurements from NASA's Airborne Topographic Mapper (ATM) narrow-swath and wide-swath instrumentation over the...
Search relevance: 47.03 | Views last month: 0 -
This data set, part of the NASA's Making Earth System Data Records for Use in Research Environments (MEaSUREs) program, provides a complete 15 m resolution image mosaic of the Greenland ice sheet,...
Search relevance: 40.64 | Views last month: 0 -
This spatial data file consists of the sedimentary unit polygons for 22 of the 32 7.5-minute quadrangles on the Raleigh 1:100,000-scale sheet, North Carolina. These twenty-two quadrangles were...
Search relevance: 39.06 | Views last month: 0 -
A Digital Elevation Model (DEM), ice thickness grid, and bedrock elevation grid of Greenland, acquired as part of the PARCA program. DEM data are a combination of ERS-1 and Geosat satellite radar...
Search relevance: 36.90 | Views last month: 0 -
Connecticut Historic Shoreline Wetlands: 1880s NOS T-Sheet Shoreline Features is a 1:10,000-scale, line feature-based layer that includes information depicting historic shoreline features and...
Search relevance: 34.56 | Views last month: 0 -
The Hydrologically Connected Zone (HCZ) Mask was determined using grid analysis to combine surface water features in the United States from three datasets: First, the surface water features were...
Search relevance: 34.31 | Views last month: 0 -
Connecticut Historic Shoreline Wetlands: 1880s NOS T-Sheet Shoreline Features is a 1:10,000-scale, line feature-based layer that includes information depicting historic shoreline features and...
Search relevance: 34.24 | Views last month: 0 -
Connecticut Historic Shoreline Wetlands: 1880s NOS T-Sheet Shoreline Features is a 1:10,000-scale, line feature-based layer that includes information depicting historic shoreline features and...
Search relevance: 34.03 | Views last month: 0 -
This dataset includes shorelines from 65 years ranging from 1947 to 2012 for the north coast of Alaska between Point Barrow and Icy Cape. Shorelines were compiled from topographic survey sheets...
Search relevance: 32.98 | Views last month: 0 -
The files linked to this reference are the geospatial data created as part of the completion of the baseline vegetation inventory project for the NPS park unit. Current format is ArcGIS file...
Search relevance: 32.76 | Views last month: 0 -
Topographic sheets (t-sheets) produced by the National Ocean Service (NOS) during the 1800s provide the position of past shorelines. The shoreline data can be vectorized into a geographic...
Search relevance: 32.42 | Views last month: 0 -
This data set consists of the administrative hydrographic area (HA) boundaries for Nevada at 1:750,000-scale and estimates of natural recharge, artificial recharge, pumpage, and net ground-water...
Search relevance: 32.32 | Views last month: 14 -
Topographic sheets (t-sheets) produced by the National Ocean Service (NOS) during the 1800s provide the position of past shorelines. The shoreline data can be vectorized into a geographic...
Search relevance: 32.29 | Views last month: 2 -
The Percentage Potential Wetland Area on Cultivated Cropland (PWAC) layer shows areas where conditions may be suitable for wetland restoration or creation at a 10-m resolution. Since the 1600's,...
Search relevance: 31.38 | Views last month: 0 -
In August 2008, the National Geophysical Data Center (NGDC), an office of the National Oceanic and Atmospheric Administration (NOAA), developed the ETOPO1 Global Relief Model as an improvement to...
Search relevance: 31.12 | Views last month: 1 -
The Potential Wetland Area (PWA) layer shows areas where conditions may be suitable for wetland habitat at a 10-m resolution. Since the 1600's, an estimated 53% of wetlands in the Conterminous...
Search relevance: 31.05 | Views last month: 0 -
Historical shoreline surveys were conducted by the National Ocean Service (NOS), dating back to the early 1800s. The maps resulting from these surveys, often called t-sheets, provide a reference...
Search relevance: 30.84 | Views last month: 1 -
The dataset is a digital elevation model (DEM), in GeoTiff format, of the bathymetry of Dierks Lake, Howard and Sevier Counties, Arkansas. The extent of the DEM represents the area encompassing...
Search relevance: 30.57 | Views last month: 0
