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1. LBA-ECO CD-06 Amazon River Basin Land and Stream Drainage Direction Maps [CD06_CAMREX]
This data set provides high-resolution (~500 m) gridded land and stream drainage direction maps for the Amazon River basin, excluding the Rio Tocantins basin. These maps are the result of a new topography-independent ...


2. ESRI Data and Maps [ESRI_DM]
ESRI Data & Maps is preconfigured to work with ESRI's software products and is also bundled with ArcGIS software and solutions products such as ArcGIS Business ...


3. LBA-ECO CD-06 Biogeochemistry of Ji-Parana River and Tributaries, Brazil: 1999-2003 [CD06_BGC_JIPARANA]
This data set provides spatially extensive and temporally intensive surveys of the river biogeochemistry of the Ji-Parana River Basin in Western Amazonia, Rondonia, Brazil. The concentrations of major ...


4. SNEP Digital Spatial Data Catalog: Sierra Nevada Ecosystem Project [CEIC_SNEP]
The Sierra Nevada Ecosystem Project (SNEP) is an assessment of the Sierra Nevada ecoregion which was requested by Congress in 1992. Along with a scientific review of late-successional ...


5. Aquatic Ecoregions in the United States GIS Data for the EPA Clean Air Mapping and Analysis Program (C-MAP) [AQUAECO]
Ecoregions are based on perceived patterns of a combination of causal and integrative factors including land use, land surface form, potential natural vegetation, and soils (Omernik, 1987). This is ...


6. BALANS Hydro1K Basin [BALANS_Hydro1K]
Examination of the existing drainage basin delineation at "Baltic Sea region GIS, maps and statistical database" (digitized after a drainage basin definition done in 1986) in comparison with the Hydro1k ...


7. Aquifer Storage and Recovery (ASR) Coordination [USGS_SOFIA_ASR_coordination]
ABSTRACT: The Comprehensive Everglades Restoration Plan (CERP) relies heavily on Aquifer Storage and Recovery (ASR) technology. The CERP includes approximately 333 ASR wells in South Florida with ...


8. Long-term precipitation chemistry patterns and dry deposition chemistry: Andrews Experimental Forest rain collector samples [HJA-CP002]
Long-term records of precipitation chemistry reflect the sampling effort and laboratory analysis initiated in 1969. The study examines nutrient inputs via precipitation in small watersheds and examines ...


9. Chesapeake Bay River Input Monitoring Program [USGS_RIMP]
The USGS Chesapeake Bay River Input Monitoring (RIM) Program was established to quantify loads and long-term trends in concentrations of nutrients and suspended material entering the tidal part of ...


10. River Network - HydroSHEDS [geodata_2242]
HydroSHEDS (Hydrological data and maps based on SHuttle Elevation Derivatives at multiple Scales) provides hydrographic information in a consistent and comprehensive format for regional and global-scale ...


11. Watershed Boundaries - HydroSHEDS [geodata_2243]
HydroSHEDS (Hydrological data and maps based on SHuttle Elevation Derivatives at multiple Scales) provides hydrographic information in a consistent and comprehensive format for regional and global-scale ...


12. USGS HYDRO-CLIMATIC DATA NETWORK (HCDN): MONTHLY CLIMATE DATABASE, 1951-1990 [hydro_hcdn]
Time series of monthly minimum and maximum temperature, precipitation and potential evapotranspiration were derived for 1337 watersheds in the conterminous United States for sites found in the national ...


13. Caribou-Poker Creeks Research Watershed: Hourly Precipitation data, 1988 to Present [BNZ_LTER_Caribou-Poker_Precip]
Precipitation is measured at many sites within CPCRW using TE525 tipping buckets. These sensors are able to detect .254mm of precipitation and record hourly totals of rainfall or throughfall. It should ...


14. Klamath Basin Restoration Agreement Off-Project Water Program Sub-basin Analysis Flow Statistic [USGS_FRESC_Klamath_flow]
VERSION 5/15/2012 HYDROLOGICAL INFORMATION PRODUCTS FOR THE OFF-PROJECT WATER PROGRAM OF THE KLAMATH BASIN RESTORATION AGREEMENT By Daniel T. Snyder, John C. Risley, and Jonathan V. Haynes SUMMARY ...


15. EarthTrends: The Environmental Information Portal [WRI_EarthTrends]
EarthTrends is an online collection of information regarding the environmental, social, and economic trends that shape our world. Committed to the principle that accurate information ...


16. Water Quality for Major Watersheds [geodata_1512]
The data are presented by watershed (drainage basin). The 82 watersheds represent major world rivers, or smaller rivers that have regional significance. Water quality data are strongly site dependant, ...


17. Agricultural, Geographic and Population data for Counties in the Contiguous United States [EOSWEBSTER_US_County_Data]   CHILD DIFs
Annual crop data from 1972 to 1998 are now available on EOS-WEBSTER. These data are county-based acreage, production, and yield estimates published by the National Agricultural Statistics ...


18. Geography, Land Use and Population data for Counties in the Contiguous United States [EOSWEBSTER_US_County_Data_4-5]   PARENT DIF
Two datasets provide geographic, land use and population data for US Counties within the contiguous US. Land area, water area, cropland area, farmland area, pastureland area and idle cropland area ...


19. Global Hydrological Archive and Analysis System (GHAAS) Water Balance Model [EOSWEBSTER_GHASS]
The GHAAS (USA) collection contains data used to compare water balance estimates over U.S. watersheds modeled by eleven potential evapotranspiration functions. The terrestrial water cycle ...


20. LBA-ECO ND-01 Watershed Deforestation from Landsat TM Series, Rondonia, Brazil: 1999 [ND01_WATERSHED_DEFOR]
This data set provides estimates of watershed deforestation, as a proportion of the total area of watersheds, in Rondonia, Brazil for 1999. Deforestation maps were determined for the main agricultural ...


21. 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 ...


22. Watershed Boundaries Level 1 - HYDRO1k (North America) [geodata_0777]
The Pfafstetter system was developed by Otto Pfafstetter, a Brazilian engineer. It is based upon the topology of the drainage network and the size of the surface area drained. Its numbering scheme ...


23. Watershed Boundaries Level 2 - HYDRO1k (Middle East) [geodata_0790]
The Pfafstetter system was developed by Otto Pfafstetter, a Brazilian engineer. It is based upon the topology of the drainage network and the size of the surface area drained. Its numbering scheme ...


24. Watershed Boundaries Level 3 - HYDRO1k [geodata_0788]
The Pfafstetter system was developed by Otto Pfafstetter, a Brazilian engineer. It is based upon the topology of the drainage network and the size of the surface area drained. Its numbering scheme ...


25. Watershed Boundaries Level 3 - HYDRO1k (Africa) [geodata_0785]
The Pfafstetter system was developed by Otto Pfafstetter, a Brazilian engineer. It is based upon the topology of the drainage network and the size of the surface area drained. Its numbering scheme ...


26. Watershed Boundaries Level 3 - HYDRO1k (Asia) [geodata_0779]
The Pfafstetter system was developed by Otto Pfafstetter, a Brazilian engineer. It is based upon the topology of the drainage network and the size of the surface area drained. Its numbering scheme ...


27. Watershed Boundaries Level 3 - HYDRO1k (Europe) [geodata_0791]
The Pfafstetter system was developed by Otto Pfafstetter, a Brazilian engineer. It is based upon the topology of the drainage network and the size of the surface area drained. Its numbering scheme ...


28. Watershed Boundaries Level 3 - HYDRO1k (North America) [geodata_0782]
The Pfafstetter system was developed by Otto Pfafstetter, a Brazilian engineer. It is based upon the topology of the drainage network and the size of the surface area drained. Its numbering scheme ...


29. NWS River Forecast Basins (GIS Coverage) [NWS_Riverbasins]
National Weather Service forecast basins for contiguous United States and Puerto Rico. Note: This documentation also applied to the sub-coverages of basins for individual ...


30. Watershed Boundaries Level 1 - HYDRO1k (Africa) [geodata_0792]
The Pfafstetter system was developed by Otto Pfafstetter, a Brazilian engineer. It is based upon the topology of the drainage network and the size of the surface area drained. Its numbering scheme ...


31. Watershed Boundaries Level 1 - HYDRO1k (Asia) [geodata_0786]
The Pfafstetter system was developed by Otto Pfafstetter, a Brazilian engineer. It is based upon the topology of the drainage network and the size of the surface area drained. Its numbering scheme ...


32. Watershed Boundaries Level 1 - HYDRO1k (Europe) [geodata_0780]
The Pfafstetter system was developed by Otto Pfafstetter, a Brazilian engineer. It is based upon the topology of the drainage network and the size of the surface area drained. Its numbering scheme ...


33. Watershed Boundaries Level 1 - HYDRO1k (Middle East) [geodata_0789]
The Pfafstetter system was developed by Otto Pfafstetter, a Brazilian engineer. It is based upon the topology of the drainage network and the size of the surface area drained. Its numbering scheme ...


34. Watershed Boundaries Level 1 - HYDRO1k (South America) [geodata_0783]
The Pfafstetter system was developed by Otto Pfafstetter, a Brazilian engineer. It is based upon the topology of the drainage network and the size of the surface area drained. Its numbering scheme ...


35. Watershed Boundaries Level 2 - HYDRO1k (Africa) [geodata_0784]
The Pfafstetter system was developed by Otto Pfafstetter, a Brazilian engineer. It is based upon the topology of the drainage network and the size of the surface area drained. Its numbering scheme ...


36. Watershed Boundaries Level 2 - HYDRO1k (Asia) [geodata_0781]
The Pfafstetter system was developed by Otto Pfafstetter, a Brazilian engineer. It is based upon the topology of the drainage network and the size of the surface area drained. Its numbering scheme ...


37. Watershed Boundaries Level 2 - HYDRO1k (Europe) [geodata_0787]
The Pfafstetter system was developed by Otto Pfafstetter, a Brazilian engineer. It is based upon the topology of the drainage network and the size of the surface area drained. Its numbering scheme ...


38. Watershed Boundaries Level 2 - HYDRO1k (South America) [geodata_0793]
The Pfafstetter system was developed by Otto Pfafstetter, a Brazilian engineer. It is based upon the topology of the drainage network and the size of the surface area drained. Its numbering scheme ...


39. Watershed Boundaries Level 3 - HYDRO1k (Middle East) [geodata_0794]
The Pfafstetter system was developed by Otto Pfafstetter, a Brazilian engineer. It is based upon the topology of the drainage network and the size of the surface area drained. Its numbering scheme ...


40. Fire Information for Resource Management System (FIRMS) MODIS Active Fire Data [FIRMS_MODIS_Active_Fire_Data]
Web Fire Mapper is an internet based mapping tool that delivers locations of active fires in near real time. For selected regions and countries you can view an interactive map showing active fires ...


41. Maps Showing the Stratigraphic Framework of South Carolina's Long Bay from Little River to Winyah Bay [USGS_OFR_2004_1013]
South Carolina's Grand Strand is a heavily populated coastal region that supports a large tourism industry. Like most densely developed coastal communities, the potential for property damage and lost ...


42. North Carolina Water Supply Watersheds [NCGIA_watersupply]
The North Carolina Department of Environment, Health, and Natural Resources, Division of Environmental Management, in cooperation with the NC Center for Geographic Information and Analysis, developed ...


43. Florida Geographic Data Library [FGDL]
The Florida Geographic Data Library (FGDL) is a mechanism for distributing spatial (GIS) data throughout the state of Florida. The FGDL is warehoused and maintained at the University of Florida's ...


44. Glacier Bay Ecosystem GIS [Inforain_USGS_GBE]
The United States Geological Survey (USGS) and Interrain Pacific are please to help make available to the public this integrated Geographic Information System for the Glacier Bay / northern Southeast ...


45. Interior Columbia Basin Ecosystem Management Project [ICBEMP]
The mission of The Interior Columbia Ecosystem Management Project (ICBEMP) is to develop a scientifically sound and ecosystem based strategy for forest and rangelands administered by the Forest Service ...


46. Southern Appalachian Assessment (SAA) Online Geospatial Database [SAMAB_SAA]
The Southern Appalachian Assessment (SAA) was a cooperative multi-agency effort to assess the environmental condition of the Southern Appalachian region. The SAA was described as the ecological equivalent ...


47. LBA-ECO ND-01 STREAMWATER AND WATERSHED CHARACTERISTICS, RONDONIA, BRAZIL: 1998-1999 [ND01_STREAM_CHEMISTRY]
This data set provides the results of (1) synoptic streamwater sampling and analyses from numerous sites across Rondonia and (2) corresponding watershed characteristics derived from remote sensing ...


48. Laikipia (Kenya) Research Programme GIS Datasets [NBId0177_101]
Laikipia Research Programme GIS Datasets are divided into two main different study area scales: the Regional level [Laikipia district, the Ewaso Ng'iro Basin] and the Local level [Land parcels-farm(s), ...


49. Lake Chad Datasets, Africa [NBId0079_101]
The Lake Chad Dataset which is a detailed case study of the UNEP/FAO/ESRI Family was developed by UNEP/GRID, on behalf of the UNEP/Fresh Water Unit for the Lake Chad Commission on Sustainable Development. ...


50. Socotra Island (Yemen) Case Study [NBId0184_101]
The UNEP/GRID Socotra Case study was started in February 1987 and was developed by GRID, Nairobi on behalf of International Board for Plant Genetic Resources (IBPGR). The objective of ...


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