Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Originator: University of Colorado Publication_Date: 2005 Title: ATL_EXT: usSEABED EXTracted data for the entire U.S. Atlantic Coast Edition: 1.0 Geospatial_Data_Presentation_Form: vector digital data Online_Linkage: http://pubs.usgs.gov/ds/2005/118/data/atl_ext.zip Online_Linkage: http://pubs.usgs.gov/ds/2005/118/htmldocs/data_cata.htm Larger_Work_Citation: Citation_Information: Originator: J.M. Reid Originator: J.A. Reid Originator: C.J. Jenkins Originator: M.E. Hastings Originator: S.J. Williams Originator: L.J. Poppe Publication_Date: 2005 Title: usSEABED: Atlantic Coast Offshore Surficial Sediment Data Release Series_Information: Series_Name: Data Series Issue_Identification: 118 Publication_Information: Publication_Place: Woods Hole Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/ds/2005/118/ Description: Abstract: This data layer is a point coverage of known sediment samplings, inspections and probings from the usSEABED data collection and integrated using the software system dbSEABED. This data layer represents the extracted (EXT) output of the dbSEABED mining software. It contains data items which were simply extracted from the data resources through data mining. The EXT data is usually based on instrumental analyses (probe or laboratory) but may apply to just a subsample of the sediment (eg. no large shells). Purpose: 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. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2005 Currentness_Reference: publication date Status: Progress: The usSEABED database is a work-in-progress. Maintenance_and_Update_Frequency: As additional information becomes available, and/or significant changes to the data mining software. Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -81.927000 East_Bounding_Coordinate: -65.000000 North_Bounding_Coordinate: 44.906000 South_Bounding_Coordinate: 23.020000 Keywords: Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: analyses Theme_Keyword: CMGP Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: dbSEABED Theme_Keyword: descriptions Theme_Keyword: geology Theme_Keyword: grain size Theme_Keyword: Marine Aggregates Resources and Processes Theme_Keyword: seabed Theme_Keyword: seafloor Theme_Keyword: sediment data Theme_Keyword: texture Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: usSEABED Theme_Keyword: Woods Hole Science Center Theme_Keyword: University of Colorado Theme_Keyword: Institute of Arctic and Alpine Research Theme_Keyword: Benthic Habitats (Pacific) Project Theme_Keyword: Pacific Science Center Theme_Keyword: USGS Theme_Keyword: CMGP Theme_Keyword: WHSC Theme_Keyword: PSC Theme_Keyword: INSTAAR Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans and estuaries Theme_Keyword: location Theme_Keyword: geoscientificInformation Place: Place_Keyword_Thesaurus: General Place_Keyword: Atlantic coast Place_Keyword: East Coast Place_Keyword: United States Place_Keyword: Atlantic Ocean Access_Constraints: None Use_Constraints: Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jamey Reid Contact_Organization: U.S. Geological Survey Contact_Position: IT Specialist (Data Management) Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: (508) 548-8700 x2204 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: jreid@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/ds/2005/118/data/atl_ext.jpg Browse_Graphic_File_Description: Image map showing extent of data layer coverage Browse_Graphic_File_Type: JPEG Data_Set_Credit: We thank the following interns for their assistance in data entry, coding, and data testing: Viness Ubert, Emma Mitchell, Emily Denham and Shea Quinn. Native_Data_Set_Environment: Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 8.3.0.800 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Accuracy of each attribute is dependent on the accuracy of the lineage data. Logical_Consistency_Report: 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. Completeness_Report: Additional useable data may exist in this area; the authors appreciate any information and leads. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: 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. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: 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. Lineage: Source_Information: Source_Scale_Denominator: See separate listing within this publication for specific sources and associated metadata Type_of_Source_Media: various hard copy documents and digital files Source_Contribution: point locations, descriptions and analytical data on many different types of sediment and rock materials and benthos Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Entity point Point_and_Vector_Object_Count: 49257 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000000 Longitude_Resolution: 0.000000 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: Geodetic Reference System 80 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257222 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: atl_ext Attribute: Attribute_Label: FID Attribute_Definition: Internal feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: Shape Attribute_Definition: Feature geometry. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Coordinates defining the features. Attribute: Attribute_Label: LATITUDE Attribute_Definition: Latitude coordinate of sample location Attribute_Definition_Source: source data Attribute_Domain_Values: Range_Domain: Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: LONGITUDE Attribute_Definition: Longitude coordinate of sample location Attribute_Definition_Source: source data Attribute_Domain_Values: Range_Domain: Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: WATERDEPTH Attribute_Definition: measured water depth for site (usually uncorrected) Attribute_Definition_Source: source data Attribute_Domain_Values: Range_Domain: Attribute_Units_of_Measure: meters Attribute: Attribute_Label: SAMPLETOP Attribute_Definition: measured subbottom depth information for each point sample Attribute_Domain_Values: Range_Domain: Attribute_Units_of_Measure: meters Attribute: Attribute_Label: SAMPLEBASE Attribute_Definition: measured subbottom depth information for each point sample Attribute_Domain_Values: Range_Domain: Attribute_Units_of_Measure: meters Attribute: Attribute_Label: SITENAME Attribute_Definition: Survey or laboratory code for site (non-unique) Attribute: Attribute_Label: DATASETKEY Attribute_Definition: Unique sequential numeric key to SRC file Attribute_Definition_Source: dbSEABED processing software Attribute: Attribute_Label: SITEKEY Attribute_Definition: Unique sequential numeric key to SRC file Attribute_Definition_Source: dbSEABED processing software Attribute: Attribute_Label: SAMPLEKEY Attribute_Definition: Unique sequential numeric key to SRC file Attribute_Definition_Source: dbSEABED processing software Attribute: Attribute_Label: SAMPLER Attribute_Definition: Equipment used to collect samples Attribute_Definition_Source: Original data source Attribute: Attribute_Label: DATATYPES Attribute_Definition: Type of data that were used to derive values held in characterization Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: ACU Enumerated_Domain_Value_Definition: Acoustic Properties Enumerated_Domain_Value_Definition_Source: dbSEABED Data Entry Template Enumerated_Domain: Enumerated_Domain_Value: CMP Enumerated_Domain_Value_Definition: Sediment Composition Enumerated_Domain_Value_Definition_Source: dbSEABED Data Entry Template Enumerated_Domain: Enumerated_Domain_Value: COL Enumerated_Domain_Value_Definition: Color Enumerated_Domain_Value_Definition_Source: dbSEABED Data Entry Template Enumerated_Domain: Enumerated_Domain_Value: GTC Enumerated_Domain_Value_Definition: Geotechnical Properties Enumerated_Domain_Value_Definition_Source: dbSEABED Data Entry Template Enumerated_Domain: Enumerated_Domain_Value: GRZ Enumerated_Domain_Value_Definition: Grain Size Enumerated_Domain_Value_Definition_Source: dbSEABED Data Entry Template Enumerated_Domain: Enumerated_Domain_Value: TXR Enumerated_Domain_Value_Definition: Texture Enumerated_Domain_Value_Definition_Source: dbSEABED Data Entry Template Enumerated_Domain: Enumerated_Domain_Value: TXG Enumerated_Domain_Value_Definition: Texture (Graphic) Enumerated_Domain_Value_Definition_Source: dbSEABED Data Entry Template Enumerated_Domain: Enumerated_Domain_Value: LTH Enumerated_Domain_Value_Definition: Lithology Enumerated_Domain_Value_Definition_Source: dbSEABED Data Entry Template Attribute: Attribute_Label: GRAVEL Attribute_Definition: Gravel grainsize fraction Attribute_Definition_Source: Original data source Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: SAND Attribute_Definition: Sand grainsize fraction Attribute_Definition_Source: Original data source Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: MUD Attribute_Definition: Mud grainsize fraction Attribute_Definition_Source: Original data source Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: CLAY Attribute_Definition: Clay grainsize fraction Attribute_Definition_Source: Original data source Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: GRAINSIZE Attribute_Definition: Phi characteristic grainsize Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -7.3 Range_Domain_Maximum: 12 Attribute_Units_of_Measure: phi Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: SORTING Attribute_Definition: Phi grainsize dispersion; standard deviation sorting only Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 6 Attribute_Units_of_Measure: phi Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: SEABEDCLS Attribute_Definition: Seabed class; (Facies) with the maximum Fuzzy Membership value > 30% Attribute_Definition_Source: dbSEABED processing software Attribute: Attribute_Label: CLSMSHP Attribute_Definition: Class membership; fuzzy membership (%) of above Class (Facies) Attribute_Definition_Source: dbSEABED processing software Attribute: Attribute_Label: FOLKCODE Attribute_Definition: Grainsize classification Attribute_Definition_Source: Folk, Andrews, and Lewis, 1970 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (g)M Enumerated_Domain_Value_Definition: slightly gravelly mud Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEt Enumerated_Domain: Enumerated_Domain_Value: (g)mS Enumerated_Domain_Value_Definition: slightly gravelly muddy sand Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEt Enumerated_Domain: Enumerated_Domain_Value: (g)sM Enumerated_Domain_Value_Definition: slightly gravelly sandy mud Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEt Enumerated_Domain: Enumerated_Domain_Value: (g)S Enumerated_Domain_Value_Definition: slightly gravelly sand Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEt Enumerated_Domain: Enumerated_Domain_Value: G Enumerated_Domain_Value_Definition: gravel Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEt Enumerated_Domain: Enumerated_Domain_Value: gM Enumerated_Domain_Value_Definition: gravelly mud Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEt Enumerated_Domain: Enumerated_Domain_Value: gmS Enumerated_Domain_Value_Definition: gravelly muddy sand Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEt Enumerated_Domain: Enumerated_Domain_Value: gS Enumerated_Domain_Value_Definition: gravelly sand Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEt Enumerated_Domain: Enumerated_Domain_Value: M Enumerated_Domain_Value_Definition: Mud Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEt Enumerated_Domain: Enumerated_Domain_Value: mG Enumerated_Domain_Value_Definition: muddy gravel Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEt Enumerated_Domain: Enumerated_Domain_Value: mS Enumerated_Domain_Value_Definition: muddy sand Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEt Enumerated_Domain: Enumerated_Domain_Value: msG Enumerated_Domain_Value_Definition: muddy sandy gravel Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEt Enumerated_Domain: Enumerated_Domain_Value: S Enumerated_Domain_Value_Definition: sand Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEt Enumerated_Domain: Enumerated_Domain_Value: sG Enumerated_Domain_Value_Definition: sandy gravel Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEt Enumerated_Domain: Enumerated_Domain_Value: sM Enumerated_Domain_Value_Definition: sandy mud Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEt Attribute: Attribute_Label: SHEPARDCOD Attribute_Definition: Shepard code; grain size classification Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: CLAYEY SILT Enumerated_Domain: Enumerated_Domain_Value: SANDY SILT Enumerated_Domain: Enumerated_Domain_Value: SAND SILT CLAY Enumerated_Domain: Enumerated_Domain_Value: SILTY CLAY Enumerated_Domain: Enumerated_Domain_Value: SAND Enumerated_Domain: Enumerated_Domain_Value: SILTY SAND Enumerated_Domain: Enumerated_Domain_Value: SEDIMENT Enumerated_Domain: Enumerated_Domain_Value: CLAYEY SAND Enumerated_Domain: Enumerated_Domain_Value: CLAY Enumerated_Domain: Enumerated_Domain_Value: SANDY CLAY Enumerated_Domain: Enumerated_Domain_Value: SILT Enumerated_Domain: Enumerated_Domain_Value: GRAVELLY SEDIMENT Enumerated_Domain: Enumerated_Domain_Value: GRAVEL Attribute: Attribute_Label: ROCKMSHP Attribute_Definition: Rock membership; fuzzy membership (%) reflecting percent exposure of rock Attribute_Definition_Source: dbSEABED processing software Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -99 Enumerated_Domain_Value_Definition: no data Attribute: Attribute_Label: WEEDMSHP Attribute_Definition: Weed membership; fuzzy membership (%) reflecting percent abundance of seaweed and seagrass Attribute_Definition_Source: dbSEABED processing software Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -99 Enumerated_Domain_Value_Definition: no data Attribute: Attribute_Label: CARBONATE Attribute_Definition: Carbonate, including finest to coarsest sampled fractions Attribute: Attribute_Label: MUNSLCODE Attribute_Definition: Munsell color code Attribute_Definition_Source: GSA Rock-Color Chart, 1991 Attribute_Domain_Values: Unrepresentable_Domain: non-unique code based on HVC (Hue, Value, Chroma) Attribute: Attribute_Label: ORGCARBON Attribute_Definition: organic carbon in the sample Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: LGSHEARSTR Attribute_Definition: Undrained compressive shear strength, Log10 of KiloPascals Attribute_Definition_Source: dbSEABED processing software Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -99 Enumerated_Domain_Value_Definition: no data Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEt Attribute: Attribute_Label: POROSITY Attribute_Definition: Void volume Attribute_Definition_Source: dbSEABED processing software Attribute_Domain_Values: Range_Domain: Attribute_Units_of_Measure: percent Attribute: Attribute_Label: PWAVEVEL Attribute_Definition: Compressional wave velocity Attribute_Definition_Source: dbSEABED processing software Attribute_Domain_Values: Range_Domain: Attribute_Units_of_Measure: meters/second Attribute: Attribute_Label: ROUGHNESS Attribute_Definition: A coded output representing the V:H of the roughness element with greatest aspect ratio Attribute_Definition_Source: dbSEABED processing software Attribute_Domain_Values: Range_Domain: Attribute_Units_of_Measure: values expressed as (rounded) integer log2 of V and H in cm Attribute: Attribute_Label: LGCRSHST Attribute_Definition: 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 Attribute_Domain_Values: Range_Domain: Attribute_Units_of_Measure: kPa Attribute: Attribute_Label: SAMPLEPHAS Attribute_Definition: Sample Phase; records whether the results are for the whole, bulk sediment or just to some special part Attribute_Definition_Source: dbSEABED processing software Attribute_Domain_Values: Range_Domain: Attribute_Units_of_Measure: Output as a word-based description that may involve numerics. This field will need to be selected against when GIS mappings of the bulk sedient characters are being mapped. Only blank entries should be included in such a mapping. Overview_Description: Entity_and_Attribute_Overview: Values of -99 for any field are indications that there was no data available. Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Jamey Reid Contact_Organization: U.S. Geological Survey Contact_Position: IT Specialist (Data Management) Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: (508) 548-8700x2204 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: jreid@usgs.gov Resource_Description: Downloadable Data Distribution_Liability: Although this data set has been used by the U.S. Geological Survey (USGS), no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Trade, firm, or product names and other references to non-USGS products and services are provided for information only and do not constitute endorsement or warranty, express or implied, by the USGS, USDOI, or U.S. Government, as to their suitability, content, usefulness, functioning, completeness, or accuracy. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ASCII Format_Information_Content: Text file containing data input to usSEABED. Fields are comma separated values. First record of file contains field names. File_Decompression_Technique: no compression applied Transfer_Size: 6.61 MB Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/ds/2005/118/data/atl_ext.txt Network_Resource_Name: http://pubs.usgs.gov/ds/2005/118/htmldocs/data_cata.htm Access_Instructions: Downloadable thru the WWW Digital_Form: Digital_Transfer_Information: Format_Name: SHP Format_Specification: ESRI Shapefile Format_Information_Content: 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 .shp.xml. An ASCII version of the metadata file. A browse graphic showing the data layer coverage and extent (optional). File_Decompression_Technique: winzip Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/ds/2005/118/data/atl_ext.zip Network_Resource_Name: http://pubs.usgs.gov/ds/2005/118/htmldocs/data_cata.htm Access_Instructions: Downloadable thru the WWW Fees: None Technical_Prerequisites: These data are available in Environmental Systems Research Institute (ESRI) shapefile format. The user must have ArcGIS® or ArcView® 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing the data. A free data viewer, arcexplorer, capable of displaying the data is available from ESRI at www.esri.com. Metadata_Reference_Information: Metadata_Date: 20050518 Metadata_Review_Date: 20050512 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jamey Reid Contact_Organization: U.S. Geological Survey Contact_Position: IT Specialist (Data Management) Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: (508) 548-8700x2204 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: jreid@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Access_Constraints: None Metadata_Use_Constraints: None Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile