HR: 0800h
AN: SF31A-0705    [Abstracts]
TI: Bathymetry, Multibeam, and Coastal Relief: Data on Demand
AU: * Sharman, G F
EM: George.F.Sharman@noaa.gov
AF: National Geophysical Data Center, 325 Broadway E/GC, Boulder, CO 80305-3328 United States
AU: Virden, W T
EM: William.T.Virden@noaa.gov
AF: Cooperative Institute for Research in Environmental Sciences, 216 UCB, Boulder, CO 80309-0216 United States
AU: Divins, D L
EM: David.Divins@noaa.gov
AF: National Geophysical Data Center, 325 Broadway E/GC, Boulder, CO 80305-3328 United States
AU: Fox, C G
EM: Christopher.G.Fox@noaa.gov
AF: National Geophysical Data Center, 325 Broadway E/GC, Boulder, CO 80305-3328 United States
AU: Habermann, T
EM: Ted.Habermann@noaa.gov
AF: National Geophysical Data Center, 325 Broadway E/GC, Boulder, CO 80305-3328 United States
AU: Habermann, T
EM: Ted.Habermann@noaa.gov
AF: Cooperative Institute for Research in Environmental Sciences, 216 UCB, Boulder, CO 80309-0216 United States
AB: The National Oceanic and Atmospheric Administration's (NOAA) National Geophysical Data Center (NGDC), Boulder, Colorado is distributing increasing quantities of data via the Internet. With evolving technology and broader bandwidth, it is possible to deliver large volumes (up to 2 GB) of data directly over the Internet and to provide server-side-generated products and services with more user options. In 2004, NGDC (www.ngdc.noaa.gov) initiated a web-based multibeam bathymetric data system,leveraging off geospatial and relational database technologies being utilized at the Center. The system has an ESRI ArcIMS interface, which handles the geospatial character of the data, and provides a standardized GIS interface and tool suite. All of this rests on a foundation Oracle database containing an inventory and metadata. It also uses software developed at NOAA's Pacific Marine Environmental Laboratory, which scripts the National Science Foundation-supported software packages: MBSystem (for managing multibeam data) and Generic Mapping Tools (GMT) (for mapping and display). In whole, the MultiBeam Bathymetric Data Base (MBBDB) (Virden, et al., "Multibeam Bathymetric Data at NOAA/NGDC," OTO '04) enables the web user to browse, discover, review, select, map, and download multibeam data directly, without human intervention by NGDC. A similar development, the NGDC Coastal Relief Model (CRM), http://www.ngdc.noaa.gov/mgg/coastal/coastal.html, is available for download at a variety of sampling intervals. This data set is built on multibeam and conventional offshore hydrography, resampled into a 3 arc-second lat-lon grid, which is matched to a 3 arc-second version of the USGS National Elevation Database (NED). The resulting fusion gives a continuous elevation surface model from the seafloor, across the coastline and onto the land. These data provide the foundation for a multitude of environmental studies and models, such as Tsunami or storm surge propagation, run up, and inundation. The Internet now affords NGDC the opportunity to deliver large volumes of data and products to an increasingly broad array of users, far beyond the traditional scientific disciplines we served a decade ago
UR: http://map.ngdc.noaa.gov/website/mgg/multibeam/viewer.htm
DE: 9350 North America
DE: 4219 Continental shelf processes
DE: 3000 MARINE GEOLOGY AND GEOPHYSICS
SC: Special Focus: Advances in Data Acquisition, Management, Analysis and Display [SF]
MN: 2004 AGU Fall Meeting