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1. ISLSCP II River Routing Data (STN-30p) [ISLSCP_RIVER_ROUTING]
The Simulated Topological Network (STN-30p) data set provides the large-scale hydrological modeling community an accurate representation of the global river system at 0.5 degree and 1.0 degree spatial ...


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. 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 ...


4. EAGER: Are the Dry Valleys Getting Wetter? A Preliminary Assessment of Wetness Across the McMurdo Dry Valleys Landscape [NSF-ANT10-45215]
Intellectual Merit: Until recently, wetted soils in the Dry Valleys were generally only found adjacent to streams and lakes. Since the warm austral summer of 2002, numerous "wet spots" have been observed ...


5. 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 ...


6. Biological River Water Quality Dataset for Ireland [Ireland_EPA_River_Quality]
This database IV dataset holds details of all rivers and the individual locations surveyed since 1971. Details include river name, EPA Code, National Grid_REFERENCEs of sample locations and of river/stream ...


7. 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 ...


8. 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 ...


9. 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 ...


10. 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 ...


11. 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 ...


12. 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 ...


13. 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 ...


14. Hurricane Rita Disaster Response from the USGS [USGS_EROS_HDDS_RITA]
USGS EROS supported first responders and emergency services working in response to Hurricane Rita. EROS channeled vital imagery to state and local governments, FEMA, and other federal agencies. These ...


15. Hurricane Wilma Disaster Response from the USGS [USGS_EROS_HDDS_WILMA]
USGS EROS supported first responders and emergency services working in response to Hurricane Wilma. EROS channeled vital imagery to state and local governments, FEMA, and other federal agencies. ...


16. 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 ...


17. Topographic Mapping of Potter Peninsula [CDA_AR_GEO_MAP-POTTER]
The Dallmann Geological Project: "Geological mapping of Potter Peninsula". Elaboration of a newly actualized geological map of Potter Peninsula, using sub-meter GPS techniques. All topographic, geologic ...


18. International Steering Committee for Global Mapping: Global Map Data [ISCGM_GLOBAL]
The concept of Global Mapping, and the establishment of an international body for Global Mapping, was first proposed by the Ministry of Construction of Japan (MOC) in 1992; and in 1994 the Geospatial ...


19. 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 ...


20. 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 ...


21. 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 ...


22. Digital Flood Insurance Rate Map Database [FEMA_DFIRM]   PARENT DIF
The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. The primary risk classifications used are the 1-percent-annual-chance ...


23. Chesapeake Bay Maryland Earth Science Study (CBESS) [chesapeak_CBESS]
This is a data table, in comma-delimited, ASCII format, which contains information about selected physical properties, particularly grain size, of 4,255 surficial sediment samples from the Chesapeake ...


24. U.S. Geological Survey (USGS) and the American Geological Institute (AGI) Global GIS Database [Global_GIS]
The U.S. Geological Survey (USGS) and The American Geological Institute (AGI) announced a cooperative agreement that will focus on making the USGS Global Geographic ...


25. Hydrologic Units Maps of the Conterminous United States for the EPA Clean Air Mapping and Analysis Program (C-MAP) [HUC250k]
The Geographic Information Retrieval and Analysis System (GIRAS) was developed in the mid 70s to put into digital form a number of data layers which were of interest to the USGS. One of these data ...


26. The European Rivers and Catchments Database [EEA_RIVERS_CATCHMENTS]
The European rivers and catchments database (ERICA Version 1998) at scale 1:1,000,000 contains over 1500 catchments to river confluences for the largest rivers in EEA member states. The dataset was ...


27. Data on freshwater and hydrochemistry in the Antarctic Peninsula region. [CNDP-ESP_GEOANT-UAM_Freshwater]   PARENT DIF
In English: Surface freshwater, snow and groundwater studies in the Antarctic Peninsula region and Ellsworth Mountains. Hydrochemical data. From projects of the research group on Geology of the University ...


28. Seminole County, Florida, USA Watershed [Seminole_Watershed_Atlas]
The Seminole County Watershed Atlas is designed to provide citizens, scientists, and planners of the region with comprehensive and current water quality, hydrologic, ...


29. 1-km Water Fraction From National Topographic Data Base Maps, Canada [Canada_GeoGratis_1kmWatFracNTDB]
This product is a raster coverage representing the fraction of area within each 1km grid cell over Canada's land mass covered by waterbodies, as mapped within the National Topographic ...


30. Bi-directional reflectance properties of the land surface over Canada derived from MODIS multispectral observations at 1-km spatial resolution. 2000-2004 [Canada_GeoGratis_Bi-dirReflProp]
The MODIS data are an important component of the Climate Change program as they provide high quality measurements of fundamental land surface properties of the Canadian climate system ...


31. Lakes in Utah [AGRC_Lakes]
This data set represents water bodies in Utah and portions of Arizona, Colorado, Idaho, Nevada, New Mexico and Wyoming that appear on the 1:100,000 scale topographical map series from ...


32. Streams in Utah TIGER 2000 [AGRC_Streams_TIGER]
This data set represents water courses in Utah converted from 2000 updated TIGER/Line Census files.


33. Watersheds in Utah [AGRC_Watersheds]
This data set represents the major watershed boundaries in Utah. The data were digitized from a paper map prepared by the USDA Soil Conservation Service.


34. David Rumsey Map Collection [David_Rumsey_Collection]
The Collection: The David Rumsey Collection which started nearly 20 years ago, includes a collection of atlases, globes, school geographies, ...


35. 1:100,000-scale Hydrography for Wyoming (enhanced DLGs) [WYGISC_HYDRO100K]
The purpose of this data layer was to provide a base layer of water features at a statewide level for riparian/aquatic species distribution modeling for the Wyoming Gap Analysis project. ...


36. 1:24,000-scale Hydrography for ortions Wyoming, various sources [WYGISC_HYDRO24K]
The purpose of this data layer is to provide a base layer of hydrography at the watershed scale for GIS display and analysis. The hydrography described by this metadata, including ...


37. Hydrologic units map of Wyoming, modified from USGS fourth level units [WYGISC_HUC250K]
The HUC dataset was compiled originally to provide the National Water Quality Assessment (NAWQA) study units with an intermediate- scale river basin boundary for extracting other ...


38. IOWA Rivers Information System [IRIS]
The Iowa Rivers Information System (IRIS) provides a comprehensive access point for obtaining physical, chemical and biological information for Iowa's interior streams and ...


39. Wyoming Headwaters Project [WYGISC_HUC]
The purpose of the Wyoming Headwaters Project is to refine existing USGS Hydrologic Unit Boundaries (HUBs) published in the mid 1970's on a national level (level 4 HUBs). 5th ...


40. LANDMAP: Satellite Image and and Elevation Maps of the United Kingdom [UK_LANDMAP]
[From The Landmap Project: Introduction, "http://www.landmap.ac.uk/background/intro.html"] A joint project to provide orthorectified satellite image mosaics of Landsat, SPOT ...


41. BALANS Land cover [BALANS_LandCover]
The BALANS land cover dataset has been assembled from satellite data from the IRS 1C/1D WiFS satellite. The reference data has been collected from national sources. Note that the ...


42. Digital Data Sets Describing Water Use, Toxic Chemical Releases, Metropolitan Areas, and Population Density of the Conterminous United States [USGS_OFR_99-78]
This report contains digital data sets describing water use, toxic chemical releases, metropolitan areas, and population density of the conterminous United States. The data source for the water-use ...


43. Emergency Assessment of Debris-Flow Hazards from Basins Burned by the Cedar and Paradise Fires of 2003, Southern California [USGS_OFR_2004_1011]
These maps present preliminary assessments of the probability of debris-flow activity and estimates of peak discharges that can potentially be generated by debris flows issuing from basins burned ...


44. Flooding of the Androscoggin River during December 18-19, 2003, in Canton, Maine [USGS_OFR_2005_1176]
The Androscoggin River flooded the town of Canton, Maine in December 2003, resulting in damage to and (or) evacuation of 44 homes. Streamflow records at the U.S. Geological Survey (USGS) streamflow-gaging ...


45. Site-Specific Soil-Carbon (S3C) Database for Mineral Soils of the Mississippi River Basin, USA [USGS_OFR_2004_1227]
The S3C database is a pedon[1]-based, site-specific, soil-organic-carbon (SOC) database for mineral soils of the Mississippi River basin. The included soil-carbon and related ancillary data are for ...


46. Status of the Sierra Nevada: The Sierra Nevada Ecosystem Project [USGS-DDS-43]
This publication consists of the online version of a CD-ROM publication, U.S. Geological Survey Digital Data Series DDS-43. The data for this publication total 175 MB on the CD-ROM and 167 MB for ...


47. Creation of a Prototype, Web-based Connecticut River Watershed Atlas [USGS_CT_ATLAS]
During the Connecticut River Watershed Sustainability workshops held in 2004, a common message voiced by participants was the need for a centralized database of information to support assessments ...


48. Map showing inventory and regional susceptibility for Holocene debris flows and related fast moving landslides in the conterminous United States [USGS_MAP_MF2329]
These data are intended for geographic display and analysis at the national level, and for large regional areas. It is not intended for hazard evaluation or other site-specific work, and should not ...


49. Digital drainage basin boundaries of named streams in Pennsylvania [USGS_PA_DIGIT]
In 1989, the Pennsylvania Department of Environmental Resources (PaDER), in cooperation with the U.S. Geological Survey, Water Resources Division (USGS published the Pennsylvania (PA) Gazetteer ...


50. 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. ...


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