United States Geological Survey , University of Colorado 2005 1.0 vector digital data Reston, VA United States Geological Survey FLORIDA - ATLANTIC OCEAN http://pubs.usgs.gov/ds/2005/118/data/atl_clc.zip http://pubs.usgs.gov/ds/2005/118/htmldocs/data_cata.htm J.M. Reid J.A. Reid C.J. Jenkins M.E. Hastings S.J. Williams L.J. Poppe 2005 1.0 Data Series 118 Woods Hole Science Center, Woods Hole, MA U.S. Geological Survey, Coastal and Marine Geology Program http://pubs.usgs.gov/ds/2005/118/ This dataset contains known sediment samplings, inspections and probings from the usSEABED data collection and integrated using the software system dbSEABED for the Atlantic Ocean. This data layer represents the calculated (CLC) output of the dbSEABED mining software. It contains results from calculating variables using empirical functions working on the results of extraction or parsing. The CLC data is the most derivative and certainly the least accurate; however, many clients appreciate that it extends the coverage of map areas with attributes, especially physical properties attributes. To build a digital mapping of the character of the seabed on regional, national and global scales. These data are intended for science researchers, students, policy makers, and the general public. The data can be used with geographic information systems (GIS) software to display geologic and oceanographic information. 2005 publication date Complete As needed -87.429040 -79.872251 30.983191 24.492815 NONE dbSEABED Marine Aggregate Resources and Processes seabed seafloor sediment data Benthic Habitat (Pacific) Project INSTAAR ISO 19115 Topic Category oceans elevation Florida Atlantic Ocean NONE THE DATA INCLUDED IN FGDL ARE 'AS IS' AND SHOULD NOT BE CONSTRUED AS LEGALLY BINDING. THE UNIVERSITY OF FLORIDA GEOPLAN CENTER SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED AS A RESULT OF USING, MODIFYING, CONTRIBUTING OR DISTRIBUTING THE MATERIALS. A note about data scale: Scale is an important factor in data usage. Certain scale datasets are not suitable for some project, analysis, or modeling purposes. Please be sure you are using the best available data. 1:24000 scale datasets are recommended for projects that are at the county level. 1:24000 data should NOT be used for high accuracy base mapping such as property parcel boundaries. 1:100000 scale datasets are recommended for projects that are at the multi-county or regional level. 1:125000 scale datasets are recommended for projects that are at the regional or state level or larger. Vector datasets with no defined scale or accuracy should be considered suspect. Make sure you are familiar with your data before using it for projects or analysis. Every effort has been made to supply the user with data documentation. For additional information, see the References section and the Data Source Contact section of this documentation. For more information regarding scale and accuracy, see our webpage at: http://geoplan.ufl.edu/education.html Florida Geographic Data Library (FGDL) mailing address

431 Architecture PO Box 115706

Gainesville Florida 32611-5706 United States Web site: http://www.fgdl.org Technical Support: http://www.fgdl.org/fgdlfeed.html For FGDL Software: http://www.fgdl.org/software.html FGDL Frequently Asked Questions: http://www.fgdl.org/fgdlfaq.html FGDL Mailing Lists: http://www.fgdl.org/fgdl-l.html We thank the following interns for their assistance in data entry, coding, and data testing: Viness Ubert, Emma Mitchell, Emily Denham and Shea Quinn. U.S. Geological Survey University of Colorado 2005 Reston, VA U.S. Geological Survey usSEABED: Atlantic Coast Offshore Surficial Sediment Data Release http://pubs.usgs.gov/ds/2005/118/images/pdf/report.pdf http://pubs.usgs.gov/ds/2005/118/htmldocs/references.htm GeoPlan relied on the integrity of the attribute information within the original data. Data in usSEABED are based on the observations and analyses of others, filtered through a unifying and mining software. Each source report varies in type of information/data recorded and format. Only those observations that are recorded can be filtered and mined; only presence (not absence) or information can be noted. The original dataset included over 120,000 points, covering the entire Atlantic Coast of the United States. GeoPlan deleted all points above the latitude 30.8633. Locational accuracy is dependent on the accuracy of the navigational technique from the individual data sources and may vary widely (e.g., from 0.005km (differential GPS) in more recent surveys to greater than 2 km based on radar, Loran, or dead reckoning in older surveys.) Users of the data should use their own criteria for assessing the accuracy of the locations. Locational accuracy is dependent on the accuracy of the navigational technique from the individual data sources. Users of the data should use their own criteria for assessing the accuracy of the locations. U.S. Geological Survey University of Colorado 2005 vector digital data Reston, VA U.S. Geological Survey http://pubs.usgs.gov/ds/2005/118/data/atl_clc.zip N/A 2005 publication date USGS/Univ. of Colorado Spatial and Attribute Information Data was downloaded by GeoPlan from the U.S. Geological Survey in shapefile format in December 2006. When received, data was in the following projection: GCS North American 1983, Units: Meters. The original data was included all inspections and probing points along the entire Atlantic Coast. During the QA/QC process the following aspects were included: (1) The original file name, atl_clc.shp, was changed to seabed_atl_clc_2005 (2) Projected data to FGDL Albers. (3) All points above latitude 30.8633 were deleted. (4) Deleted the following blank fields: SHEPARDCOD, MUNSLCODE, FOLKCODE, SEABEDCLS (5) Added the DESCRIPT field based on SITENAME (6) Added the FGDLAQDATE field. 20061208 Metadata imported. Vector Entity point 7338 Albers Conical Equal Area 24.000000 31.500000 -84.000000 24.000000 400000.000000 0.000000 coordinate pair 0.002048 0.002048 meters D_North_American_1983_HARN Geodetic Reference System 80 6378137.000000 298.257222 1.000000 Explicit elevation coordinate included with horizontal coordinates SEABED_ATL_CLC_2005 SEABED_ATL_CLC_2005.DBF ESRI OBJECTID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. LATITUDE Latitude coordinate of sample location USGS/Univ. of Colorado decimal degrees LONGITUDE Longitude coordinate of sample location USGS/Univ. of Colorado decimal degrees WATERDEPTH Measured water depth for site (usually uncorrected) USGS/Univ. of Colorado meters SAMPLETOP Measured subbottom depth information for each point sample USGS/Univ. of Colorado meters SAMPLEBASE Measured subbottom depth information for each point sample USGS/Univ. of Colorado meters SITENAME Survey or laboratory code for site (non-unique) USGS/Univ. of Colorado DATASETKEY Unique sequential numeric key to SRC file dbSEABED processing software SITEKEY Unique sequential numeric key to SRC file dbSEABED processing software SAMPLEKEY Unique sequential numeric key to SRC file dbSEABED processing software SAMPLER Equipment used to collect samples USGS/Univ. of Colorado DATATYPES Type of data that were used to derive values held in characterization USGS/Univ. of Colorado ACU Acoustic Properties dbSEABED Data Entry Template CMP Sediment Composition dbSEABED Data Entry Template COL Color dbSEABED Data Entry Template GTC Geotechnical Properties dbSEABED Data Entry Template GRZ Grain Size dbSEABED Data Entry Template TXR Texture dbSEABED Data Entry Template TXG Texture (Graphic) dbSEABED Data Entry Template LTH Lithology dbSEABED Data Entry Template GRAVEL Gravel grainsize fraction USGS/Univ. of Colorado 0 100 percent 1 SAND Sand grainsize fraction USGS/Univ. of Colorado 0 100 percent 1 MUD Mud grainsize fraction USGS/Univ. of Colorado 0 100 percent 1 CLAY Clay grainsize fraction USGS/Univ. of Colorado 0 100 percent 1 GRAINSIZE Phi characteristic grainsize USGS/Univ. of Colorado -7.3 12 phi 0.1 SORTING Phi grainsize dispersion; standard deviation sorting only USGS/Univ. of Colorado 0 6 phi 0.1 CLSMSHP Class membership; fuzzy membership (%) of above Class (Facies) dbSEABED processing software ROCKMSHP Rock membership; fuzzy membership (%) reflecting percent exposure of rock dbSEABED processing software -99 no data WEEDMSHP Weed membership; fuzzy membership (%) reflecting percent abundance of seaweed and seagrass dbSEABED processing software -99 no data CARBONATE Carbonate, including finest to coarsest sampled fractions ORGCARBON Organic carbon in the sample 0 100 percent LGSHEARSTR Undrained compressive shear strength, Log10 of KiloPascals dbSEABED processing software -99 no data dbSEABED software, version MNEt POROSITY Void volume dbSEABED processing software percent PWAVEVEL Compressional wave velocity dbSEABED processing software meters/second ROUGHNESS A coded output representing the V:H of the roughness element with greatest aspect ratio dbSEABED processing software values expressed as (rounded) integer log2 of V and H in cm LGCRSHST Log Critical Shear Stress, Log10 of Tau in kPa, being the Shear Stress required to initiate easily observable erosion and transport, whether by traction or suspension kPa SAMPLEPHAS Sample Phase; records whether the results are for the whole, bulk sediment or just to some special part dbSEABED processing software Output as a word-based description that may involve numerics. This field will need to be selected against when GIS mappings of the bulk sediment characters are being mapped. Only blank entries should be included in such a mapping. DESCRIPT FGDL added item based on SITENAME. GeoPlan FGDLAQDATE Date FGDL acquired the data. GeoPlan SHAPE Feature geometry. ESRI Coordinates defining the features. AUTOID Unique ID added by GeoPlan GeoPlan Values of -99 for any field are indications that there was no data available. Jamey Reid U.S. Geological Survey IT Specialist (Data Management) mailing address

431 Architecture PO Box 115706

Gainesville Florida 32611-5706 United States (508) 548-8700 x2204 (508) 457-2310 Web site: http://www.fgdl.org Technical Support: http://www.fgdl.org/fgdlfeed.html For FGDL Software: http://www.fgdl.org/software.html FGDL Frequently Asked Questions: http://www.fgdl.org/fgdlfaq.html Mailing list for FGDL: http://www.fgdl.org/fgdl-l.html DOWNLOADABLE DATA THE FGDL DATA AS PROVIDED BY CONTRIBUTING ORGANIZATIONS AND ANY PROGRAMMING SOFTWARE CREATED BY THE UNIVERSITY OF FLORIDA GEOPLAN CENTER (COLLECTIVELY THE 'MATERIALS') ARE COPYRIGHTED BY THE UNIVERSITY OF FLORIDA GEOPLAN CENTER FOR THE FGDL CONTRIBUTING AGENCIES AND ORGANIZATIONS (THE 'DATA PROVIDERS'). DO NOT REPRODUCE, REDISTRIBUTE OR RESELL THE MATERIALS, OR PROVIDE THE MATERIALS FOR FREE TO CUSTOMERS OR CLIENTS, OR PLACE THE MATERIALS FOR DOWNLOAD ON A WEBSITE. ADDITIONALLY, WHEN USING FGDL DATA OR SOFTWARE IN PROJECTS, MAPS, ETC.; YOU AGREE TO ACKNOWLEDGE THE FGDL AS A DATA SOURCE. THE MATERIALS ARE PROVIDED 'AS IS'. THE UNIVERSITY OF FLORIDA GEOPLAN CENTER MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE QUALITY OR SUITABILITY OF THE MATERIALS, EITHER EXPRESSLY OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. THE UNIVERSITY OF FLORIDA GEOPLAN CENTER MAKES NO WARRANTIES, GUARANTIES OR REPRESENTATIONS AS TO THE TRUTH, ACCURACY OR COMPLETENESS OF THE DATA PROVIDED BY THE FGDL CONTRIBUTING ORGANIZATIONS. THE UNIVERSITY OF FLORIDA GEOPLAN CENTER SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED AS A RESULT OF USING, MODIFYING, CONTRIBUTING OR DISTRIBUTING THE MATERIALS. ASCII Text file containing data input to usSEABED. Fields are comma separated values. First record of file contains field names. no compression applied 19.1 MB http://pubs.usgs.gov/ds/2005/118/data/atl_clc.txt http://pubs.usgs.gov/ds/2005/118/htmldocs/data_cata.htm Downloadable thru the WWW SHP ESRI Shapefile The SHP file contains the geospatial data. The SHX file contains the index of the geospatial data. The DBF file contains the attribute data in dBASE format. The PRJ file contains the coordinate system information (optional). The AVL file contains the legend information (optional). The SBN and SBX files contain the spatial index of the geospatial data (optional). The XML file contains the metadata describing the data set <data set name>.shp.xml. An ASCII version of the metadata file. A browse graphic showing the data layer coverage and extent (optional). winzip http://pubs.usgs.gov/ds/2005/118/data/atl_clc.zip http://pubs.usgs.gov/ds/2005/118/htmldocs/data_cata.htm Downloadable thru the WWW None This data is intended for use with a Geographic Information Systems or Remote Sensing software package. 20070215 20050512 Jamey Reid U.S. Geological Survey IT Specialist (Data Management) mailing and physical address

384 Woods Hole Rd.

Woods Hole MA 02543-1598 USA (508) 548-8700 x2204 (508) 457-2310 jreid@usgs.gov FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time None None http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile {F8014025-4D0A-467D-9F02-5F69567BC073}2007021512550700TRUE{5A888C0A-E6D6-466B-855B-6677E2ED42BD}Published