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This map shows areas that have experienced fire between 1999 and 2010, including fire severity information where available. Determination of "change" due to fire is not possible due to the lack of highly accurate pre- and post-fire maps of vegetation conditions, and the wide range of possible interpretations of what constitutes a change. Instead, the focus was placed on mapping the location of fires and severity; the overall likelihood of significant change in short term vegetation conditions increases with fire severity.
This set of maps shows relative habitat diversity (complexity) as it relates to the number of different dominant cover types are found in 1 hectare, and the number of structural types found in 1 hectare. Component layers are included, as are layers of channel boundaries, reaches, and bottomland kilometers.
Current national data resources for GAP include three primary data sets – land cover, protected areas, and species. Land Cover: The GAP land cover data set includes detailed vegetation and land use patterns for the continental United States. The data set incorporates the Ecological System classification system developed by NatureServe to represent natural and semi-natural land cover. The 590 land use classes in the data set can be displayed at three levels of detail, from general (8 classes) to most detailed. The land cover data can be used to identify those places in the country with sufficient good quality habitat to support wildlife, a key step in developing sound conservation plans. Learn more about GAP...
Portal which contains modeled projections of storm surge from coastal storms along the East and Gulf Coasts and the resulting physical,economic, and social losses. Developed in collabortion with FEMA. Contains SLOSH storm surge data and HAZUS loss data by census block.
Categories: Data, Map, Web Site; Types: Application, Downloadable
This collection of maps shows relative habitat quality for a suite of species that use riparian overstory habitats. Component layers include: tree patch size, presence and complexity of riparian understory, and abundance of tamarisk. Associated layers such as river channels at high flow and bottomland reaches are included for reference.
From the USGS Streamer app description: Explore America's larger streams as you trace upstream to their source or downstream to where they empty. Learn more about your stream traces and the places they pass through in brief or detailed reports. See weather radar and near real-time streamflow conditions.
Categories: Map
From the USGS EarthExplorer about information: The USGS EarthExplorer (EE) tool provides users the ability to query, search, and order satellite images, aerial photographs, and cartographic products from several sources. In addition to data from the Landsat missions and a variety of other data providers, EE now provides access to MODIS land data products from the NASA Terra and Aqua missions, and ASTER level-1B data products over the U.S. and Territories from the NASA ASTER mission. Registered users of EE have access to more features than guest users.
Categories: Map
The Community Subsistence Information System (CSIS) hosted by the Division of Subsistence, Alaska Department of Fish and Game (ADF&G) provides harvest data for over 270 communities. The Division of Subsistence has been collecting harvest data since 1981 for resources harvested by each community including large land mammals, marine mammals and migratory waterfowl. Data are organized by community and year of study with different levels of data available for each rural community. The partnership between ADF&G and Alaska’s Landscape Conservation Cooperatives (LCCs) has made data available as a searchable, mapbased interface. By creating a spatial interface for the CSIS database, managers and stakeholders will be able...
Released hydrology research data sets
Categories: Data, Image, Map
These files were used to construct corridors estimating the extent of new coastal corridors exposed by reduced lake levels. They are included here to show the available horizontal extent of lidar-derived topo-bathymetric data and thus explicitly identify gaps and limitations of predicted corridor extents under various reduced lake level scenarios. In addition, these files provide users with a background layer that depicts the topographic variability of the submerged near-shore lake bed and terrestrial landscape.These files are 5m grid representations of the hydrographic and topographic data collected by the CHARTS system along the coasts of the U.S. sides of Lake Michigan, Lake Huron, Lake St. Clair, Lake Erie,...
This study area consists of a 10-km inland buffer of the U. S. Great Lakes shoreline. Islands within the lakes were included in this invasive Phragmites mapping project where remotely sensed imagery scenes were available.
ZIP File in Geographic NAD 1927 Projection. Map of the alluvial valley of the Mississippi River from the head of St. Francis Basin to the Gulf of Mexico, showing lands subject to overflow, location of levees and trans-alluvial profiles Downloaded from: Edited (to correct position of panels) and georeferenced by Yvonne Allen (USFWS) to geographic NAD1927 using ArcGIS , 3rd order polynomial and 80 ground control points using lat lon grid.
Categories: Map; Types: GeoTIFF; Tags: Lower Mississippi River

map background search result map search result map Tacoma, WA M7.1 Olympia, WA Aftershock M5.7 New Madrid-central section M7.3 Grand Valley Fault WY M7.1 Hayward Fault CA M7.0 V2 National Level Exercise 2011 Wabash Valley Seismic Zone M6.0 Current National Data Resources for the Gap Analysis Program Riparian Overstory Model and Component Layers General Diversity Model and Component Layers Lidar Topo-Bathymetry Forecasting Potential Phragmites Coastal Invasion Corridors Study Area Extent Colorado Plateau REA MQ B2: Where are perennial streams and stream reaches? Colorado Plateau REA MQ E1: Where are the areas that have been changed by wildfire between 1999 and 2009? General Diversity Model and Component Layers Riparian Overstory Model and Component Layers Colorado Plateau REA MQ E1: Where are the areas that have been changed by wildfire between 1999 and 2009? Lidar Topo-Bathymetry Colorado Plateau REA MQ B2: Where are perennial streams and stream reaches? Forecasting Potential Phragmites Coastal Invasion Corridors Study Area Extent Current National Data Resources for the Gap Analysis Program