Identification_Information: Citation: Citation_Information: Originator: Gulf States Marine Fisheries Commission Originator: University of Colorado Originator: University of New Orleans Publication_Date: 2007 Title: Marine Benthic Substrates Geodatabase, Northern Gulf of Mexico Geospatial_Data_Presentation_Form: Vector and Raster digital data Online_Linkage: None Larger_Work_Citation: Citation_Information: Originator: J. Rester Originator: C.J. Jenkins Originator: M. Bethel Publication_Date: 2007 Title: Marine Benthic Substrates Geodatabase, Northern Gulf of Mexico Series_Information: Series_Name: None Issue_Identification: None Publication_Information: Publication_Place: Gulf States Marine Fisheries Commission Online_Linkage: None Description: Abstract: This is a compilation of diverse data sets, describing the nature of seabed materials. Purpose: To improve the quality of such information. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2007 Currentness_Reference: Completion date, version 1 Status: Progress: In work Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -97.72000 East_Bounding_Coordinate: -80.10000 North_Bounding_Coordinate: 30.85000 South_Bounding_Coordinate: 23.45000 Keywords: Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: dbSEABED Theme_Keyword: benthic Theme_Keyword: marine Theme_Keyword: habitat Theme_Keyword: grain size Theme_Keyword: seabed Theme_Keyword: seafloor Theme_Keyword: sediment data Theme_Keyword: texture Theme_Keyword: usSEABED Theme_Keyword: GSMFC Theme_Keyword: INSTAAR Theme_Keyword: PIES Place: Place_Keyword_Thesaurus: General Place_Keyword: Gulf of Mexico Place_Keyword: Gulf Coast Place_Keyword: United States Place_Keyword: Florida Place_Keyword: Alabama Place_Keyword: Mississippi Place_Keyword: Louisiana Place_Keyword: Texas Access_Constraints: Under moratorium till review and public release Use_Constraints: Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jeff Rester Contact_Organization: Gulf States Marine Fisheries Commission Contact_Position: Fisheries Biologist Contact_Address: Address_Type: mailing address Address: P.O. Box 726 City: Ocean Springs State_or_Province: MS Postal_Code: 39566-0726 Country: USA Contact_Voice_Telephone: +1-228-875-5912 Contact_Facsimile_Telephone: +1-228-875-6604 Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Dr Chris Jenkins Contact_Organization: INSTAAR University of Colorado Contact_Position: Senior Research Scientist Contact_Address: Address_Type: mailing address Address: Box UCB 450 City: Boulder State_or_Province: CO Postal_Code: 80309-0450 Country: USA Contact_Voice_Telephone: +1-303-492-6387 Contact_Facsimile_Telephone: +1-303-492-6388 Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Dr Mark Kulp Contact_Organization: PIES University of New Orleans Contact_Position: Assistant Professor Contact_Address: Address_Type: mailing address Address: PIES, University of New Orleans City: New Orleans State_or_Province: LA Postal_Code: 70148 Country: USA Contact_Voice_Telephone: +1-504-280-4020 Contact_Facsimile_Telephone: +1-504-280-4022 Data_Set_Credit: We particularly thank the individuals and institutions who performed the original studies, collecting and collating field and laboratory data. Native_Data_Set_Environment: Microsoft Windows XP Native_Data_Set_Environment: ESRI ArcMap 9.2 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 integrating and quality-controlling software. Each source report varies in type of information/data recorded and format. Completeness_Report: Additional useable data may exist in this area; the authors appreciate any additional information. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Locational accuracy is dependent on the accuracy of the navigation for the lineage data. That may vary widely from 0.005 km using differential GPS in recent surveys, to greater than 2 km based on radar, LORAN, or dead reckoning in older surveys. While every endeavour has been made to correct for the effects of map projections and spheroids in the lineage data, this has not been possible in all cases. 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 navigation for the lineage data. In most cases no corrections for tide, surge, vertical datums, or acoustic velocities is made. 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, polygon, polyline, and raster locations. Descriptions and analytical data on many different types of sediment and rock materials, benthos, and undersea features. 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, polygon and raster Point_and_Vector_Object_Count: 51290 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.00001 Longitude_Resolution: 0.00001 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: WGS84, World Geodetic System Ellipsoid_Name: WGS 84 Semi-major_Axis: 6378137.0 m Denominator_of_Flattening_Ratio: 298.257223563 Entity_and_Attribute_Information: Detailed_Description: 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: OBSVNTOP Attribute_Definition: Measured subbottom depth information for each point sample Attribute_Domain_Values: Range_Domain: Attribute_Units_of_Measure: meters Attribute: Attribute_Label: OBSVNBOT Attribute_Definition: Measured subbottom depth information for each point sample Attribute_Domain_Values: Range_Domain: Attribute_Units_of_Measure: meters Attribute: Attribute_Label: LOCNNAME Attribute_Definition: Survey or laboratory code for location of observation or sample (non-unique) Attribute: Attribute_Label: DATASETKEY Attribute_Definition: Unique sequential string or numeric key to lineage dataset Attribute_Definition_Source: dbSEABED processing software Attribute: Attribute_Label: LOCNKEY Attribute_Definition: Unique sequential string or numeric key to location of observation or sample Attribute_Definition_Source: dbSEABED processing software Attribute: Attribute_Label: OBSVNKEY Attribute_Definition: Unique sequential numeric key to to sample Attribute_Definition_Source: dbSEABED processing software Attribute: Attribute_Label: DEVICE Attribute_Definition: Method or device used to collect make observations or 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 grain size 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 grain size 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 grain size 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 grain size fraction Attribute_Definition_Source: Original data source, dbSEABED integrated 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 grain size Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -8.0 Range_Domain_Maximum: 12.0 Attribute_Units_of_Measure: phi Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: SORTING Attribute_Definition: Phi grain size dispersion; moment measure 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: Attribute_Label: SEABEDCLS Attribute_Definition: Seabed class; That Class having the maximum Fuzzy Membership value (and > 30% threshold). 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: 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: FOLKCODE Attribute_Definition: Coded sediment texture based on Folk (1974), e.g., "(g)sM", "SZC" Attribute_Definition_Source: dbSEABED processing software Attribute: Attribute_Label: VEGMSHP Attribute_Definition: Vegetation membership; fuzzy membership for abundance of algae, seagrass and other plants Attribute_Definition_Source: dbSEABED processing software Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: CARBONATE Attribute_Definition: Carbonate, including mineral and biogenic Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: MUNSLCODE Attribute_Definition: Munsell color code based on HVC (Hue, Value, Chroma) Attribute_Definition_Source: GSA Rock-Color Chart, 1991 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: LSHEARSTR Attribute_Definition: Undrained compressive shear strength, Log10 of KiloPascals (kPa) Attribute_Definition_Source: dbSEABED processing software Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -99 Enumerated_Domain_Value_Definition: no data 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_Label: LCRITSHSTRS 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_Label: GEOLAGE Attribute_Definition: Geological age, as a code: youngest possible age “y:o” oldest possible age. Attribute_Domain_Values: Range_Domain: Attribute_Units_of_Measure: Ma Attribute: Attribute_Label: OBSVNDETAILS 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 sediment 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 numeric field are indications that there was no data available. Entity_and_Attribute_Overview: Values of "" or "-" for any string field are indications that there was no data available. Metadata_Reference_Information: Metadata_Date: 31 March 2007 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Dr Chris Jenkins Contact_Organization: INSTAAR University of Colorado Contact_Position: Senior Research Scientist Contact_Address: Address_Type: mailing address Address: Box UCB 450 City: Boulder State_or_Province: CO Postal_Code: 80309-0450 Country: USA Contact_Voice_Telephone: +1-303-492-6387 Contact_Facsimile_Telephone: +1-303-492-6388 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