Title: usSEABED: Atlantic Coast Offshore Surficial Sediment Data Release
Edition: 1.0
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 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.
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: -81.983000
East_Bounding_Coordinate: -65.000000
North_Bounding_Coordinate: 46.086670
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: WHSC
Theme_Keyword: PSC
Theme_Keyword: INSTAAR
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans and estuaries
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.
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 contained within the Larger_Work_Citation 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: 121590
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