A Geospatial Framework for the Coastal Zone National Needs for Coastal Mapping and Charting (2004) / Chapter Skim
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1 Introduction
1 Introduction
Pages 11-17
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From page 11... ...
These habitats, which individually support their own unique assemblages of plants and animals, are also complexly linked with -- and dependent on -- the coastal environment. More than 80 percent of the American population lives within 50 miles of the coast, a population component that has doubled in the past decade.
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From page 12... ...
. · Rapid population growth and the resulting increase in coastal devel opment during the past 50 years have resulted in greatly increased natural hazard risk to 160 million Americans and more than $3 trillion in coastal property (Heinz Center, 2002)
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From page 13... ...
In coastal regions, high-quality maps and charts are essential for safe navigation, resolving jurisdictional boundaries, understanding processes, mitigating hazards, tracking environmental changes, establishing inventories of resources and habitats, and developing new programs and policies. Ideally, to accomplish all of these goals it will be necessary to combine disparate coastal zone information (e.g., land features, water depths, salinity, currents, bottom type, habitat type, infrastructure)
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From page 14... ...
The lack of coordination of coastal zone mapping efforts inevitably leads to the potential for redundancy of surveys or products. At the national level, at least 15 federal agencies are involved in the primary collection or use of coastal geospatial data (see Appendix A)
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By examining the major spatial information requirements of federal agencies, as well as the princi pal user groups they support (e.g., state and local coastal managers, urban planners, resource managers, maritime industry) , the committee will iden tify high priority needs, evaluate the potential for meeting these needs based on the current level of effort, and suggest steps to increase collaboration and ensure that the nation's need for spatial information in the coastal zone is met in an efficient and timely manner.
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From page 16... ...
These data and tools will permit the establishment of a nationally coordinated distributed digital database across the landsea interface consisting of seamless elevation and depth data that can be referenced or transformed to common vertical and horizontal datums. This database will provide the basic geospatial framework for all subsequent data products, much like the USGS topographic sheet basemaps have formed the onshore foundation for a multitude of subsequent studies.
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From page 17... ...
With these tools, the user community will be able to evaluate the accuracy and timeliness of data and change scales and projections, as well as seamlessly merge disparate datasets. The database and data integration tools will be easily accessible to all users, public and private, from a single digital portal accessible through the Internet.
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