Created from the Extracted Vector Shoreline Series, a topologically clean shoreline file depicting the Mean High Water line at the best scale for the continental U.S., Hawaii, Alaska, and U.S. territories. These data are available as a free 55 MB Download.
The main purpose of the Charted Vector Shoreline Project is to provide public access to accurate and current coastline and shoreline data. The project targets scales between 1:10,000 and 1:80,000 with emphasis on the larger scales. Using processes and software designed by the Cartographic and Geospatial Technology Programs (CGTP), the vector data are automatically extracted from the NOAA Nautical Charts.
From each chart, Mean High Water and Mean Lower Low Water lines are extracted as vector lines from the binary raster files used in nautical chart production. The resulting vector high and lower low water lines are derived from the legal depictions on nautical charts for the United States. The resulting line files are checked for accuracy and converted from paper-charted units to geographic positions and imported to the shape file format used in GIS (Geographic Information Systems) applications.
The Mean High Water Line is represented by files with "gd20" in the name, and Mean Low Water Lines by files with "mar" in the name, for example 1276gd20.shp and 1276mar.shp respectively. Federal Geographic Data Committee (FGDC) compliant metadata is also available. The FGDC metadata file is a static file available online.
The Coastal Map Data Layer for GIS Systems project, designed to create an up-to-date, digital, and geo-referenced coastal map data layer, began as a way to provide the coastal stewardship community and general public with non-proprietary navigational chart images to be used as backdrops for Geographic Information Systems (GIS) derived products. Coastal maps are produced from NOS nautical charts for all near-shore geographic areas of the United States.
The nautical chart contains information critical to navigational users, but which obstructs a clear view of the basic topographic and hydrographic data. The charts are therefore cleaned of all navigational aides and symbols, prepared as TIF images and geo-referenced. Federal Geographic Data Committee (FGDC) compliant metadata is also available.
Capturx Software Helps Architects, Engineers, and Contractors Speed Design Updates and Improve Change Documentation Using Autodesk Applications, Microsoft(R) Excel, and Digital Pens
Smart Data Strategies, Inc., a leading provider of GIS software products and services for local, state, and federal government agencies, announces the official launch of the Washington State Department of Transportation’s web-based Right-of-Way Management System. The system, known as the Integrated Realty Information Service (IRIS) replaces the legacy system that was originally developed in-house.
Gardiner, Maine – December 1, 2008 - Blue Marble Geographics (www.bluemarblegeo.com) announces the release of the Geographic Calculator 7.2 via the Blue Marble Desktop 1.1, the all-in-one geospatial data management platform for Blue Marble’s popular data transformation tools.
MADISON, WI, and MARKHAM, ON, CANADA – December 1, 2008 – GeoAnalytics® Inc., an IT consulting firm that specializes in spatial intelligence systems, including the planning, design, and implementation of enterprise class, spatially enabled information systems, today announced a new partnership with Orion Technology, a Division of Rolta Canada Ltd., to implement the industry leading OnPointTM solution.
27th November 2008, Cambridge, UK. 1Spatial is presenting a session in the Geospatial track at Autodesk University 2008 to highlight the geospatial data integration issues faced by organisations across the World today.
Featured Events
International LIDAR Mapping Forum - The ILMF is the premier event for the LIDAR industry attracting professionals from all over the world with the next event scheduled for January 26 – 28, 2009 in New Orleans, USA.
Join 8,000 geographers, GIS specialists, and environmental scientists for the latest in research, policy, and applications in geography, sustainability, and GIScience during the AAG Annual Meeting in Las Vegas to be held March 22-27, 2009.
Created from the Extracted Vector Shoreline Series, a topologically clean shoreline file depicting the Mean High Water line at the best scale for the continental U.S., Hawaii, Alaska, and U.S. territories. These data are available as a free 55 MB Download.
