The National Risk Map Service is intended to show hazard layers at a national scale. Users can view Sea level vulnerability factors including slope, erosion/accretion rate, geomorphology, tidal range, wave height, sea-level change, and the composite Coastal Vulnerability Index, which takes all of the aforementioned factors into account. Major historical hurricane tracks and population density by county are also available. Users can select the seal level vulnerability factor the wish to view by selecting it from a drop down list. As the layer draws on the map, a tabular view of the data values and risk scores assigned to these values will appear below the map along with a link to more information about each specific factor. The Sea-Level Rise Vulnerability Data originates from the United States Geological Survey (USGS). Users can also add historic major hurricane tracks to the map by Storm name or year..

This data set includes the locations and attribute information for US Cities in the United States.

U.S. Roads represents generalized interstate highways and major roads within the United States.

U.S. Rivers represents generalized major rivers within United States.

The map contains bathymetric ocean depths originating from National Ocean Service Special Projects Office.

U.S. water bodies represent major inland lakes and rivers in the United States.

The goal of this project is to provide a preliminary overview, at a national scale, the relative susceptibility of the Nation's coast to sea- level rise through the use of a coastal vulnerability index (CVI). This initial classification is based upon the variables geomorphology, regional coastal slope, tide range, wave height, relative sea-level rise and shoreline erosion and accretion rates. The combination of these variables and the association of these variables to each other furnish a broad overview of regions where physical changes are likely to occur due to sea-level rise.

This Historical North Atlantic Hurricane Tracks file of major storms with landfall in the United States contains the 6-hourly (0000, 0600, 1200, 1800 UTC) center locations and intensities for all major storms from 1851 through 2002. Major storms are those that made landfall in the United States and that were classified on the Saffir-Simpson Hurricane Scale as Category 3, 4, or 5 at the time of landfall. Landfalling storms are defined as those storms whose center is reported to have either crossed or passed directly adjacent to the U.S. coastline, and which came ashore with tropical storm intensity or greater (sustained surface winds of 34 knots or 39 miles per hour or greater). In 2000, 2001, and 2002 there were no major landfalling hurricanes. This a revised version of the September, 2001 data set.

The State Digital Geography is a digital spatial framework developed using geographic information system technology. The state geography is derived from the Census Bureau's 1:2 million scale county geography. County boundaries within each state were dissolved using a GIS. The shoreline and international boundaries in the geography come for NOAA's Coastal Assessment Framework. The geography encompasses 100 percent of the land area within the coterminous United States of America. A document is available that describes the attrribute tables of this digital geography in detail.

The County Digital Geography is a digital spatial framework developed using geographic information system technology. The county geography is derived from the Census Bureau's 1:2 million scale county geography. The shoreline and international boundaries in the geography come for NOAA's Coastal Assessment Framework. The geography encompasses 100 percent of the land area within the coterminous United States of America. A document is available that describes the attrribute tables of this digital geography in detail.

This data set includes U.S. Census Bureau population information for the United States and Puerto Rico, presented by county. These data are from the 2000 Census and include total population counts, population density values, gender and age statistics, and various statistics on race and ethnicity distributions.