gov.noaa.ngdc.mgg.dem:669 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce User Services Mailing and Physical Address
NOAA/NESDIS/NGDC E/GC 325 Broadway
Boulder CO 80305-3328 USA (303) 497-6826 (303) 497-6513 ngdc.info@noaa.gov 7:30 - 5:00 Mountain 20091130 Arena Cove, California Coastal Digital Elevation Model First raster digital data NOAA Tsunami Inundation DEMs Arena Cove, California Boulder, Colorado DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce http://www.ngdc.noaa.gov/dem/squareCellGrid/download/669 http://www.ngdc.noaa.gov/dem/squareCellGrid/download/669 Arena Cove, CA 1/3 arc-second Tsunami Inundation DEM Download page for accessing DEM, metadata record and development report. download http://www.ngdc.noaa.gov/mgg/inundation/tsunami/inundation.html NOAA Tsunami Inundation Gridding Project Project web page. information DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/OAR/PMEL/NCTR > NOAA Center for Tsunami Research, Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce 20081031 NOAA Tsunami Inundation Gridding Project Raster Digital Data NOAA Tsunami Inundation DEMs Named by primary coastal city, state in DEM. Boulder, Colorado DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce http://www.ngdc.noaa.gov/mgg/inundation/tsunami/inundation.html http://www.ngdc.noaa.gov/mgg/inundation/tsunami/inundation.html NOAA Tsunami Inundation Gridding Project Project web page. information http://www.ngdc.noaa.gov/dem/squareCellGrid/map Map Interface Graphic geo-spatial search tool for locating completed and planned NOAA tsunami inundation DEMs. search http://www.ngdc.noaa.gov/dem/squareCellGrid/search DEM text search tool Text search tool for locating completed and planned NOAA tsunami inundation DEMs. search NOAA's National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) for select U.S. coastal regions. These integrated bathymetric-topographic DEMs are used to support tsunami forecasting and warning efforts at the NOAA Center for Tsunami Research, Pacific Marine Environmental Laboratory (PMEL). The DEMs are part of the tsunami forecast system SIFT (Short-term Inundation Forecasting for Tsunamis) currently being developed by PMEL for the NOAA Tsunami Warning Centers, and are used in the MOST (Method of Splitting Tsunami) model developed by PMEL to simulate tsunami generation, propagation, and inundation. Bathymetric, topographic, and shoreline data used in DEM compilation are obtained from various sources, including NGDC, the U.S. National Ocean Service (NOS), the U.S. Geological Survey (USGS), the U.S. Army Corps of Engineers (USACE), the Federal Emergency Management Agency (FEMA), and other federal, state, and local government agencies, academic institutions, and private companies. DEMs are referenced to the vertical tidal datum of Mean High Water (MHW) and horizontal datum of World Geodetic System 1984 (WGS84). Grid spacings for the DEMs range from 1/3 arc-second (~10 meters) to 3 arc-seconds (~90 meters). Developed for the Pacific Marine Environmental Laboratory (PMEL), NOAA Center for Tsunami Research program in support of NOAA's tsunami forecasting and warning efforts. Dorothy Z. Friday Lisa A. Taylor Barry W. Eakins Robin R. Warnken Kelly S. Carignan Robert J. Caldwell Elliot Lim Pamela R. Medley DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Lisa A. Taylor Mailing and Physical Address
NOAA/NESDIS/NGDC 325 Broadway
Boulder CO 80305-3328 USA (303) 497-6767 (303) 497-6958 (303) 497-6513 Lisa.A.Taylor@noaa.gov 7:30 - 5:00 Mountain Contact Data Center 20091130 Digital Elevation Model of Arena Cove, California: Procedures, Data Sources, and Analysis Boulder, CO DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce 24 pages http://www.ngdc.noaa.gov/dem/squareCellGrid/getReport/669 http://www.ngdc.noaa.gov/dem/squareCellGrid/getReport/669 Digital Elevation Model of Arena Cove, California: Procedures, Data Sources and Analysis Report describing the development of the Arena Cove, California DEM download 1929 2007 ground condition Complete As needed -124.43 -123.43 39.40 38.40 NASA/GCMD Earth Science Keywords Earth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry Earth Science > Oceans > Bathymetry/Seafloor Topography > Water Depth Earth Science > Land Surface > Topography > Terrain Elevation Earth Science > Land Surface > Topography > Topographical Relief Earth Science > Oceans > Coastal Processes > Coastal Elevation NASA/GCMD Platform Keywords DEM > Digital Elevation Model NASA/GCMD Data Center Keywords DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce WDC/MGG, BOULDER > World Data Center for Marine Geology and Geophysics, Boulder NASA/GCMD Data Resolution Keywords H: 1 meter - < 30 meters V: < 1 meter ISO 19115 Topic Category elevation Uncontrolled Coastal Relief Gridded elevations Integrated bathymetry and topography NASA/GCMD Location Keywords Continent > North America > United States of America > California Ocean > Pacific Ocean > North Pacific Ocean Vertical Location > Land Surface Vertical Location > Sea Floor Uncontrolled Arena Cove Point Arena Mendocino Gualala San Andreas Fault Northern California Tsunami Inundation Gridding Project Digital Elevation Model DEM Light Detection and Ranging LIDAR Tsunami Inundation Gridding Project Digital Elevation Model DEM Multibeam Swath Bathymetry System MSBS Tsunami Inundation Gridding Project Digital Elevation Model DEM Sound Navigation and Ranging SONAR None. Not to be used for navigational purposes. DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Barry W. Eakins Research Scientist mailing and physical address
NOAA/NESDIS/NGDC
325 Broadway, E/GC3
Boulder Colorado 80305-3328 USA 303-497-6505 303-497-6513 Barry.Eakins@noaa.gov 9am-5pm, M-F, Mountain Time Contact NGDC's Marine Geology and Geophysics Division. http://www.ngdc.noaa.gov/mgg/aboutmgg/contacts.html http://www.ngdc.noaa.gov/dem/squareCellGrid/getGraphic/669 Perspective view of DEM JPEG Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 2; ESRI ArcCatalog 9.2.4.1420 gov.noaa.ngdc.mgg.dem:tigp Datasets were visually compared internally and externally (with other overlapping datasets and satellite images and maps) in ESRI ArcGIS and Applied Imagery's QT Modeler for identification of anomalous elevations or data inconsistencies. Where elevation inconsistencies occurred, the most recent and/or highest resolution data set was selected for use in that region. Older elevation surveys and/or lower-resolution datasets were deleted prior to building the DEM. NGDC made every effort to obtain all available digital topographic and bathymetric datasets in the region for use in building the DEM. The horizontal accuracy of bathymetric and topographic features in the DEM is dependent upon the DEM cell size and accuracy of the input datasets used to determine corresponding cell values. Topography: 10 meters. Positional accuracy of input topographic datasets limits accuracy of corresponding cell values in DEM. USGS NED DEM: 10 meters. USGS Lidar: 0.5 meters. CSC Lidar: 1 meter. DEM cell-value relative-contribution factors: NED: 10, USGS Lidar: 10, CSC Lidar:10. Bathymetry: 10 to a few hundreds of meters. Positional accuracy of input bathymetric datasets limits accuracy of corresponding cell values in DEM. NGDC and CSUMB multibeam sonar: 2-5 meters. NOS hydrographic soundings: Early 20th-century soundings are limited by sparseness of deep-water soundings, and potentially large positional accuracy errors of pre-satellite (i.e., GPS) navigation: 1 to several tens of meters. OCS ENC points: 40 to 208 meters. Morphologic change along the coast also degrades the positional accuracy of NOS soundings and ENC point values. DEM cell-value relative-contribution factors: Multibeam sonar data: 10, NOS hydrographic soundings: 1, OCS ENC extracted points: 1. The vertical accuracy of bathymetric and topographic features in the DEM is dependent upon the DEM cell size and the accuracy of the input datasets used to determine corresponding cell values. Topography: up to 15 meters. Vertical accuracy of input topographic datasets limits accuracy of corresponding cells in DEM. USGS NED DEM: 7-15 meters. USGS Lidar: About 0.2 meters, non-bare earth. CSC Lidar: About 0.15 meters, non bare-earth. DEM cell relative-contribution factors: NED: 10, USGS Lidar:10, CSC Lidar:10. Bathymetry: 0.1 meters to 5% of water depth. Vertical accuracy of input bathymetric datasets limits accuracy of corresponding cells in DEM. GPS-navigated NGDC and CSUMB multibeam sonar: about 0.1 meter. Early 20th-century NOS hydrographic soundings are limited by sparseness of deep-water soundings, and potentially large positional accuracy errors of pre-satellite (i.e., GPS) navigation: several meters. Where present, multibeam sonar data supersede NOS hydrographic sounding data values in DEM. OCS ENCs: Manual digitization in shallow water areas, less than five meters. DEM cell relative-contribution factors: multibeam sonar data: 10, NOS hydrographic soundings: 1, OCS ENCs: 1. Gridding interpolation to determine cell values between sparse NOS hydrographic soundings in deep water degrades the vertical accuracy of some deep-water elevations. DOI/USGS > U.S. Geological Survey, Department of the Interior DOI/USGS > U.S. Geological Survey, U.S. Department of the Interior Mailing and Physical
12201 Sunrise Valley Drive
Reston VA 20192 USA (703) 648-4000 2008 USGS NED topography http://ned.usgs.gov/ http://ned.usgs.gov/ USGS National Elevation Dataset Digital database of U.S. topography, in raster form (DEM) download online 2000 ground condition USGS NED topography topographic DEM DOI/USGS > U.S. Geological Survey, Department of the Interior DOI/USGS > U.S. Geological Survey, U.S. Department of the Interior Mailing and Physical
12201 Sunrise Valley Drive
Reston VA 20192 USA (703) 648-4000 200602 San Andreas, CA LIDAR Project http://lidar.ce.usgs.gov http://seamless.usgs.gov San Andreas, CA LIDAR Project Lidar data download online 2003 ground condition USGS lidar Lidar surveys for San Andreas fault region of Northern California. DOC/NOAA/NOS/CSC > Coastal Services Center, National Ocean Service, NOAA, U.S. Department of Commerce 2008 NOAA Coastal Services Center Coastal Lidar http://maps.csc.noaa.gov/TCM/ http://maps.csc.noaa.gov/TCM/ Topographic Change Mapping CSC coastal lidar download online 2002 ground condition CSC LiDAR topographic and topographic-bathymetric lidar surveys DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce User Services Mailing and Physical Address
NOAA/NESDIS/NGDC E/GC 325 Broadway
Boulder CO 80305-3328 USA (303) 497-6826 (303) 497-6513 ngdc.info@noaa.gov 7:30 - 5:00 Mountain 2008 NGDC Multibeam Bathymetry Database http://www.ngdc.noaa.gov/mgg/bathymetry/multibeam.html http://www.ngdc.noaa.gov/mgg/bathymetry/multibeam.html NGDC Multibeam Bathymetry Database Multibeam swath sonar survey data download online 1993 2005 publication date NGDC Multibeam Bathymetry Multibeam bathymetry data California State University at Monterey Bay, Seafloor Mapping Lab 2008 CSUMB Multibeam Swath Sonar Surveys http://seafloor.csumb.edu/SFMLwebDATA.htm http://seafloor.csumb.edu/SFMLwebDATA.htm California State University at Monterey Bay, Seafloor Mapping Lab Multibeam swath sonar surveys for Monterey Bay download online 2000 2006 ground condition CSUMB Multibeam Swath Sonar Surveys Multibeam surveys for Point Arena and Point Cabrillo DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce User Services Mailing and Physical Address
NOAA/NESDIS/NGDC E/GC 325 Broadway
Boulder CO 80305-3328 USA (303) 497-6826 (303) 497-6513 ngdc.info@noaa.gov 7:30 - 5:00 Mountain 2008 NOS Hydrographic Surveys http://www.ngdc.noaa.gov/mgg/bathymetry/hydro.html http://www.ngdc.noaa.gov/mgg/bathymetry/hydro.html NOS Hydrographic Survey Database Digital database of NOS hydrographic surveys that date back to the late 19th century. download online 1929 2007 ground condition NOS Hydrographic Surveys hydrographic surveys DOC/NOAA/NOS/OCS > Office of Coast Survey, National Ocean Service, NOAA, U.S. Department of Commerce DOC/NOAA/NOS/OCS > Office of Coast Survey, National Ocean Service, NOAA, U.S. Department of Commerce Mailing and Physical
Office of Coast Survey NOAA's National Ocean Service 1315 East-West Hwy
Silver Spring MD 20910 USA (301) 713-2780 For questions, go to: http://ocsdata.ncd.noaa.gov/idrs/inquiry.aspx?frompage=ContactUs 2008 Electronic Navigational Charts http://www.nauticalcharts.noaa.gov/mcd/enc/index.htm http://www.nauticalcharts.noaa.gov/mcd/enc/index.htm OCS Electronic Navigational Charts Digital database of NOAA nautical chart information. download online 2000 2005 publication date ENCs extracted points All datasets obtained by NGDC were converted to common horizontal and vertical datums of NAD 83 geographic and Mean High Water, respectively, using FME and VDatum. They were also converted to common file format, ESRI point shapefiles, for visualization and inspection. 20090820 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Barry W. Eakins Research Scientist mailing and physical address
NOAA/NESDIS/NGDC
325 Broadway, E/GC3
Boulder Colorado 80305-3328 USA 303-497-6505 303-497-6513 Barry.Eakins@noaa.gov 9am-5pm, M-F, Mountain Time Contact NGDC's Marine Geology and Geophysics Division. http://www.ngdc.noaa.gov/mgg/aboutmgg/contacts.html Datasets were visually inspected with ArcGIS for identification and editing of data anomalies. Datasets were then compared with overlapping datasets to ensure data consistency. 20090825 Coastline datasets were merged and adjusted to fit most current lidar topographic zero elevation line. 20090915 xyz files of the bathymetric data were surfaced using GMT's 'surface' tool onto a 1 arc-second grid that interpolated to fill empty cells. Points extracted every 10 meters along the coastline were also included to ensure that the bathymetric grid reached zero at the coast. The resulting Arc ASCII grid was imported into ArcGIS and clipped to the coastline to remove values over land. 20090930 xyz files for each input dataset were gridded using MB-System's 'mbgrid' tool, which utilizes a high-tension spline interpolation method to fill grid cells with no input elevation values. Preferential weighting was given to more recent, higher-accuracy datasets. Gridding was performed in quadrants, each with a 5% data buffer. The grids were imported in ArcGIS and seamlessly merged to create the final DEM. 20091015 The DEM was quantitatively evaluated by comparing with source datasets and with elevation values extracted from NGS geodetic monuments. It was visually evaluated by converting to UTM-zone coordinates (units of meters horizontally and vertically) and then creating a slope grid to identify gridding artifacts in the DEM. 20091030 Raster ASCII text Grid Cell 10801 10801 1 0.00009259259 0.00009259259 Decimal degrees D_WGS_1984 WGS_1984 6378137.000000 298.257224 Mean High Water 0.01 meters Explicit elevation coordinate included with horizontal coordinates Mean High Water 0.01 meters Explicit depth coordinate included with horizontal coordinates DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Barry W. Eakins Research Scientist mailing and physical address
NOAA/NESDIS/NGDC
325 Broadway, E/GC3
Boulder Colorado 80305-3328 USA 303-497-6505 303-497-6513 Barry.Eakins@noaa.gov 9am-5pm, M-F, Mountain Time Contact NGDC's Marine Geology and Geophysics Division. http://www.ngdc.noaa.gov/mgg/aboutmgg/contacts.html Downloadable Data While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. ESRI Arc ASCII 1 ASCII text version of ESRI ArcGIS raster format WINZIP 404000000 http://www.ngdc.noaa.gov/dem/squareCellGrid/getArchive/669 http://www.ngdc.noaa.gov/dem/squareCellGrid/getArchive/669 Arena Cove, CA 1/3 arc-second Tsunami Inundation DEM DEM, metadata and Readme file for the Arena Cove, California DEM. download http://www.ngdc.noaa.gov/dem/squareCellGrid/download/669 Arena Cove, CA 1/3 arc-second Tsunami Inundation DEM Download page for accessing DEM, metadata record and development report. information None 20110826 20120226 20120826 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Barry W. Eakins Research Scientist mailing and physical address
NOAA/NESDIS/NGDC
325 Broadway, E/GC3
Boulder Colorado 80305-3328 USA 303-497-6505 303-497-6513 Barry.Eakins@noaa.gov 9am-5pm, M-F, Mountain Time Contact NGDC's Marine Geology and Geophysics Division. http://www.ngdc.noaa.gov/mgg/aboutmgg/contacts.html Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata FGDC-STD-012-2002 local time