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1. 1:24,000 Scale Digital Elevation Models (DEM) SDTS format only from the U.S. Geological Survey [USGS_DEM24K]
The DEM data for 7.5-minute units correspond to the USGS 1:24,000 and 1:25,000 scale topographic quadrangle map series for all of the United States and its territories. Each 7.5-minute DEM is based ...


2. 1:250,000 Scale Digital Elevation Models (DEM) from the U.S. Geological Survey [USGS_DEM250K]
A digital elevation model (DEM) consists of an array of elevations for ground positions that are usually at regularly spaced intervals. The 1-degree DEM provides coverage in 1- by 1-degree blocks ...


3. Digital Elevation Model (DEM) 7.5 Minute Quadrangle [DEM_7_5]
The 7.5-minute digital elevation model (DEM) data are digital representations of cartographic information in a raster form. The DEMs consist of an array of elevations for ground positions at regularly ...


4. Digital Elevation Model Data from 7.5-Minute Quadrangle Maps [7_MIN_DEM]
Produced by the U.S. Geological Survey (USGS), the 7.5-Minute Digital Elevation Model (DEM) data are digital representations of cartographic information in a raster form. DEMs consist of an ...


5. Digital Elevation Model: 15-Minute Quadrangle [DEM_15]
The 15-minute digital elevation model (DEM) data are digital representations of cartographic information in a raster form. The DEMs consist of an array of elevations for ground positions at regularly ...


6. Elevation Derivatives for National Applications (EDNA) [USGS_EDNA]
The Elevation Derivatives for National Applications (EDNA) is a multi-layered database derived from a version of the National Elevation Dataset (NED), which has been hydrologically conditioned for ...


7. GTOPO30 Hydro 1K [gtopo30_hydro_1k]
HYDRO1k is a geographic database developed to provide comprehensive and consistent global coverage of topographically derived data sets, including streams, drainage basins and ancillary layers derived ...


8. Global 30-Arc-Second Elevation Data Set [GTOPO30]
Digital elevation model (DEM) data are sampled arrays of surface elevations in raster form. A DEM provides elevation values in rows and columns, corresponding to a regular grid of points on the Earth's ...


9. Global Land Cover Characterization Program [USGS_GLCC]
The Global Land Cover Characterization Project was established to meet science data requirements identified by the International Geosphere and Biosphere Programme (IGBP), and the U. S. Global Change ...


10. Global Land Cover Test Sites [glcts]
The Global Land Cover Test Sites (GLCTS) project is a component of the National Aeronautics and Space Administration's Landsat Pathfinder Program. Pathfinder projects focus on the application of ...


11. HYDRO1k Elevation Derivative Database [HYDRO1k]
HYDRO1k is a geographic database developed to provide comprehensive and consistent global coverage of topographically derived data sets, including streams, drainage basins and ancillary layers derived ...


12. North American Landscape Characterization [NALC]
The North American Landscape Characterization (NALC) project is a component of the Landsat Pathfinder Program, which is part of a larger Pathfinder Program initiated by the National Aeronautics ...


13. Shuttle Radar Topography Mission (SRTM) Elevation 1 Arc Second Dataset Index [USGS_SRTM_Elev_1arcsec_Index]
The reference layer is for the Shuttle Radar Topography Mission (SRTM) elevation 1 arc second (30 meter) dataset. SRTM aboard the Space Shuttle Endeavour, launched on Feb. 11, 2000, used the same ...


14. The National Hydrography Dataset [USGS_EPA_NHD]
The National Hydrography Dataset (NHD) is a comprehensive set of digital spatial data that contains information about surface water features such as lakes, ponds, streams, rivers, springs and wells. ...


15. USGS Digital Orthophoto Quadrangles [USGS_DOQ]
A Digital Orthophoto Quadrangle (DOQ) is a computer-generated image of an aerial photograph in which the image displacement caused by terrain relief and camera tilt has been removed. The DOQ combines ...


16. USGS National Elevation Dataset [USGS_NED]
The U.S. Geological Survey has developed a National Elevation Dataset (NED). The NED is a seamless mosaic of best-available elevation data. The 7.5-minute elevation data for the conterminous United ...


17. Urban Dynamics Research Program: Analysis of Land Use Change in Urban Environments [USGS_UDRP]
The Urban Dynamics project looks at land use change in urban environments in order to provide a historical perspective of land use change and an assessment of the spatial patterns, rates, correlation, ...


18. ASTER_L1T [ASTER_L1T]   PARENT DIF
The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is an advanced multispectral imager that was launched on board NASA's Terra spacecraft in December, 1999. The ASTER Level-1T ...


19. NOAA Climate Data Record Normalized Difference Vegetation Index [NOAA_CDR_NDVI]
National Oceanic and Atmospheric Administration (NOAA) Climate Data Records (CDR) provide historical climate information using data from weather satellites. This dataset contains daily Normalized ...


20. eMODIS Phenology [eMODIS_Phen]
The Remote Sensing Phenology (RSP) collection is a set of nine annual phenological metrics for the conterminous United States. Researchers at the USGS EROS Center utilize data gathered by satellite ...


21. Conterminous U.S. AVHRR Bi-Weekly Composites [USAVHRR]
The goal of the Conterminous U.S. AVHRR project is to compile a comprehensive time series data set of calibrated, georegistered daily observations and biweekly maximum normalized difference ...


22. Global Experimental Bi-Weekly Normalized Difference (GLEND) Vegetation Index [GLEND_NC00260]
The vigor and density of green vegetation can be monitored through examination of the spectral reflectance of the vegetation in the visible and near infrared areas of the electromagnetic ...


23. Greenness of the Conterminous U.S. [USGS_GREENESS]
Since 1989, the USGS EROS Data Center has been mapping the vegetation condition of the conterminous United States (lower 48 states) using satellite information. The vegetation condition maps, or more ...


24. Northern Great Plains AVHRR Data Set [NGP88]
The Northern Great Plains AVHRR data set is a compilation of daily NOAA-9 satellite observations acquired during the fall of 1987 and during the 1988 growing season. The daily observations have been ...


25. Sahel & NW Africa 14-Day NDVI Composites [SAHEL_NAFR]
Following the serious grasshopper outbreaks of 1986, a pilot program was defined between the U.S. Geological Survey and the U.S. Agency for International Development. The primary goal of this program ...


26. CEOS Cal Val Test Site - Algeria 3 - Pseudo-Invariant Calibration Site (PICS) [CEOS_CalVal_Test_Sites-Algeria3]
On the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) ...


27. CEOS Cal Val Test Site - Dome C, Antarctica - Instrumented Site [CEOS_CalVal_Test_Site-Dome_C-Antarctica]
On the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) ...


28. CEOS Cal Val Test Site - Dunhuang, China - Instrumented Site [CEOS_CalVal_Test_Site-Dunhuang-China]
On the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) ...


29. CEOS Cal Val Test Site - Frenchman Flat, USA - Instrumented Site [CEOS_CalVal_Test_Site-Frenchman_Flat-USA]
On the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) ...


30. CEOS Cal Val Test Site - Ivanpah Playa, USA - Instrumented Site [CEOS_CalVal_Test_Site-Ivanpah_Playa-USA]
On the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) ...


31. CEOS Cal Val Test Site - La Crau, France - Instrumented Site [CEOS_CalVal_Test_Site-La_Crau-France]
On the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) ...


32. CEOS Cal Val Test Site - Libya 1 - Pseudo-Invariant Calibration Site (PICS) [CEOS_CalVal_Test_Site-Libya1]
On the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) ...


33. CEOS Cal Val Test Site - Libya 4 - Pseudo-Invariant Calibration Site (PICS) [CEOS_CalVal_Test_Site-Libya4]
On the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) ...


34. CEOS Cal Val Test Site - Mauritania 1 - Pseudo-Invariant Calibration Site (PICS) [CEOS_CalVal_Test_Site-Mauritania1]
On the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) ...


35. CEOS Cal Val Test Site - Mauritania 2 - Pseudo-Invariant Calibration Site (PICS) [CEOS_CalVal_Test_Sites-Mauritania2]
On the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) ...


36. CEOS Cal Val Test Site - Negev, Southern Israel - Instrumented Site [CEOS_CalVal_Test_Site-Negev-Southern_Israel]
On the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) ...


37. CEOS Cal Val Test Site - Railroad Valley Playa, USA - Instrumented Site [CEOS_CalVal_Test_Site-Railroad_Valley_Playa-USA]
On the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) ...


38. CEOS Cal Val Test Site - Tuz Golu, Turkey - Instrumented Site [CEOS_CalVal_Test_Site-Tuz_Golu-Turkey]
On the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) ...


39. CEOS Cal Val Test Site - Algeria 5 - Pseudo-Invariant Calibration Site (PICS) [CEOS_CalVal_Test_Sites-Algeria5]
On the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) ...


40. AVHRR Phenology [AVHRR_Phenology]
The Advanced Very High Resolution Radiometer (AVHRR) data set is comprised of data collected by the AVHRR sensor and held in the archives of the USGS Earth Resources Observation and Science [EROS) ...


41. USGS State Cooperative Geophysical Research Program Consisting of Gravity and Magnetic Data [GEOPHYS]
MAGNETIC DATA Digital magnetic data were compiled from a diverse group of magnetic surveys. Digital data from aeromagnetic and shipborne magnetic surveys were compiled at different ...


42. NASA Shuttle Radar Topography Mission United States 1 arc-second [SRTMUS1N]
The Shuttle Radar Topography Mission (SRTM) data sets resulted from a collaborative effort by the National Aeronautics and Space Administration (NASA) and the National Geospatial-Intelligence Agency ...


43. NASA Shuttle Radar Topography Mission Water Body Data Shapefiles and Raster Files [SRTMSWBD]
The Shuttle Radar Topography Mission (SRTM) data sets resulted from a collaborative effort by the National Aeronautics and Space Administration (NASA) and the National Geospatial-Intelligence Agency ...


44. Phenology Study of the Conterminous United States [USGS_EROS_Phenological]
The sensor responsible for the longest running series of NDVI products used for large-area phenology studies is carried aboard National Oceanic and Atmospheric Administration (NOAA) polar-orbiting ...


45. Shuttle Radar Topography Mission (SRTM) Elevation Data for the Island Nation of Sri Lanka [Tsunami_122604_SRTM]   PARENT DIF
The topography of the island nation of Sri Lanka is well shown in this color-coded shaded relief map generated with digital elevation data from the Shuttle Radar Topography Mission (SRTM). Two visualization ...


46. USGS Land Cover Trends Project [USGS_LCTP]
Land Cover Trends was a research project focused on understanding the rates, trends, causes, and consequences of contemporary U.S. land use and land cover change. The project spanned from 1999 to ...


47. 1:2,000,000-Scale Hydrologic Unit Maps [2MILHUC]
This data set contains hydrologic units (drainage basins) at a scale of 1:2,000,000 for the conterminous United States and Alaska. The attributes assigned to each unit follow the 8-digit Hydrologic ...


48. Landsat 8 Operational Land Imager (OLI) Thermal Infrared Sensor (TIRS) Pre-WRS-2 Version 1 [Landsat_8_OLI_TIRS_Pre-WRS-21]
The Landsat 8 OLI/TIRS Pre-WRS-2 data set contains nearly 10,000 scenes acquired by the Operational Land Imager (OLI) and/or Thermal Infrared Sensor (TIRS) sensors after launch (February 11, 2013) ...


49. Landsat 8 Operational Land Imager (OLI) Thermal Infrared Sensor (TIRS) Version 1 [Landsat_8_OLI_TIRS1]
The Operational Land Imager (OLI) and Thermal Infrared Sensor (TIRS) are instruments onboard the Landsat 8 satellite, which was launched in February of 2013. The satellite collects images of the Earth ...


50. Landsat Orthorectified TM Imagery [LANDSAT_ORTHO_TM]
Background. Data were compiled through NASA's Commercial Remote Sensing Program; this program is a cooperative effort between NASA and the commercial remote sensing community to provide users with ...


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