Metadata: Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2016 Title: Polygon boundary describing the source surveys used to build the Bathymetric Terrain Model of the U.S. Atlantic Margin of 100-meter resolution compiled by the U.S. Geological Survey (Esri Shapefile, Geographic WGS 84 Coordinate System) Edition: 2 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Open-File Report Issue_Identification: 2012-1266 Publication_Information: Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2012/1266/GIS/shapefile/AtlanticMarginBathSource_V2.zip Online_Linkage: http://pubs.usgs.gov/of/2012/1266/data_catalog.html Larger_Work_Citation: Citation_Information: Originator: Brian D. Andrews Originator: Jason D. Chaytor Originator: Uri S. ten Brink Originator: Daniel S. Brothers Originator: James V. Gardner Originator: Elizabeth A. Lobecker Originator: Brian R. Calder Publication_Date: 2016 Title: Bathymetric Terrain Model of the Atlantic Margin for Marine Geological Investigations Edition: 2 Series_Information: Series_Name: Open-File Report Issue_Identification: 2012-1266 Publication_Information: Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Online_Linkage: http://dx.doi.org/10.3133/ofr20121266 Online_Linkage: http://pubs.usgs.gov/of/2012/1266/ Description: Abstract: Bathymetric Terrain Models (BTMs) of seafloor morphology are an important component of marine geological investigations. Advances in acquisition and processing technologies of bathymetry data have facilitated the creation of high-resolution bathymetric surfaces that approach the resolution of those available for onshore investigations. These BTMs provide a detailed representation of the Earth's subaqueous surface and when combined with other geophysical and geologic datasets, allow for interpretation of modern and ancient geologic processes. Purpose: The purpose of this polygon shapefile is to delineate the extent of each survey that contributed to the final BTM. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19900310 Ending_Date: 20150828 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: This polygon may be updated along with the BTM as newer, high resolution, bathymetry is publicly available from the National Centers for Environmental Information (NCEI). Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -76.98924 East_Bounding_Coordinate: -60.10277 North_Bounding_Coordinate: 41.477867 South_Bounding_Coordinate: 28.11144 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: University of New Hampshire Theme_Keyword: Center for Coastal and Ocean Mapping Theme_Keyword: National Oceanic and Atmospheric Administration Theme_Keyword: multibeam Theme_Keyword: bathymetry Theme_Keyword: shapefile Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: boundaries Place: Place_Keyword_Thesaurus: National Geospatial GEOnet Names Server (GNS) Place_Keyword: Atlantic Ocean Place_Keyword: Georges Canyon Place_Keyword: Corsair Canyon Place_Keyword: Nygren Canyon Place_Keyword: Munson Canyon Place_Keyword: Powell Canyon Place_Keyword: Lydonia Canyon Place_Keyword: Gilbert Canyon Place_Keyword: Oceanographer Canyon Place_Keyword: Welker Canyon Place_Keyword: Dogbody Canyon Place_Keyword: Hydrographer Canyon Place_Keyword: Veatch Canyon Place_Keyword: Nantucket Canyon Place_Keyword: Atlantis Canyon Place_Keyword: Alvin Canyon Place_Keyword: Block Canyon Place_Keyword: Ryan Canyon Place_Keyword: Uchupi Canyon Place_Keyword: Emery Canyon Place_Keyword: Jones Canyon Place_Keyword: McMaster Canyon Place_Keyword: Babylon Canyon Place_Keyword: Hudson Canyon Place_Keyword: Toms Canyon Place_Keyword: Carteret Canyon Place_Keyword: Lindenkohl Canyon Place_Keyword: Spencer Canyon Place_Keyword: Wilmington Canyon Place_Keyword: Wilmington Valley Place_Keyword: Knauss Seamount Place_Keyword: Baltimore Canyon Place_Keyword: Accomac Canyon Place_Keyword: Phoenix Canyon Place_Keyword: Washington Canyon Place_Keyword: Hull Canyon Place_Keyword: Norfolk Canyon Place_Keyword: Keller Canyon Place_Keyword: Hatteras Canyon Place_Keyword: Hatteras Ridge Place_Keyword: Pamlico Canyon Place_Keyword: Carrituck Landslide Place_Keyword: Blake Canyon Place_Keyword: Blake Spur Place_Keyword: Blake Escarpment Place_Keyword: Blake Ridge Place_Keyword: Bear Seamount Place_Keyword: Physalia Seamount Place_Keyword: Retriever Seamount Place_Keyword: Picket Seamount Place_Keyword: Balanus Seamount Place_Keyword: Kiwi Seamount Place_Keyword: Kelvin Seamount Place_Keyword: Atlantis II Seamounts Place_Keyword: Sheldrake Seamount Place_Keyword: Gosnold Seamount Place_Keyword: Gregg Seamount Place_Keyword: San Pablo Seamount Place_Keyword: Manning Seamount Place_Keyword: New England Seamounts Place_Keyword: Asterias Seamount Place_Keyword: Panulirus Seamount Place_Keyword: Buell Seamount Place_Keyword: Mytilus Seamount Place_Keyword: Caryn Seamount Place_Keyword: Hudson Fan Place: Place_Keyword_Thesaurus: None Place_Keyword: Atlantic Margin Place_Keyword: Munson-Nygren Landslide Place_Keyword: Retriever Landslide Place_Keyword: Cape Fear Landslide Place_Keyword: Cape Lookout Landslide Place_Keyword: Currituck Landslide Stratum: Stratum_Keyword_Thesaurus: None Stratum_Keyword: Seafloor Stratum_Keyword: Sea floor Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: 1990 Temporal_Keyword: 1992 Temporal_Keyword: 1999 Temporal_Keyword: 2004 Temporal_Keyword: 2005 Temporal_Keyword: 2008 Temporal_Keyword: 2009 Temporal_Keyword: 2011 Temporal_Keyword: 2012 Temporal_Keyword: 2013 Temporal_Keyword: 2014 Temporal_Keyword: 2015 Access_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. Use_Constraints: None Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Brian Andrews Contact_Organization: U.S. Geological Survey Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2348 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: bandrews@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2012/1266/GIS/shapefile/AtlanticMarginBathSource_V2.jpg Browse_Graphic_File_Description: Thumbnail image of bathymetric source polygon the Atlantic Margin. Browse_Graphic_File_Type: JPEG Data_Set_Credit: U.S. Geological Survey Native_Data_Set_Environment: Microsoft Windows Vista Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.4095 Cross_Reference: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2016 Title: ambath100 Edition: 2.0 Geospatial_Data_Presentation_Form: raster digital data Online_Linkage: http://pubs.usgs.gov/of/2012/1266/GIS/raster/AMBath100m_V2.zip Larger_Work_Citation: Citation_Information: Originator: Brian D. Andrews Originator: Jason D. Chaytor Originator: Uri S. ten Brink Originator: Daniel S. Brothers Originator: James V. Gardner Originator: Elizabeth A. Lobecker Originator: Brian R. Calder Publication_Date: 2016 Title: Bathymetric Terrain Model of the Atlantic Margin for Marine Geological Investigations Edition: 2.0 Series_Information: Series_Name: Open-File Report Issue_Identification: 2012-1266 Publication_Information: Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Online_Linkage: http://dx.doi.org/10.3133/ofr20121266 Online_Linkage: http:/pubs.usgs.gov/of/2012/1266/ Data_Quality_Information: Logical_Consistency_Report: Polygon boundaries are generated from 100 meter resolution bathymetric surface in CARIS Base Editor (v. 4.0-4.1.14) prior to interpolation to fill small holes in the base surface. Therefore, this shapefile may have holes or "no data" values within the boundaries of the shapefile that represent these "no data" values in the source surface. These holes were subsequently filled in the grid using interpolation in CARIS or filtering in ArcMap (v.10.3.1). Completeness_Report: The individual polygons only delineate the extent of bathymetric data used to compile the bathymetric terrain model and may not include all the data collected during the individual survey. Lineage: Process_Step: Process_Description: Step 1: The extents of each surface (contributor) are used as input during the combine process in CARIS Base Editor and is transferred to a new feature layer and eventually exported as an Esri shapefile. Within CARIS Base Editor (v. 4.0- 4.1.14, Software was updated as new versions were available over the course of this project) select the "Create" a "new feature layer" from the main menu and use the spatial extent of the combined surface and name the new feature layer.The general naming convention for the output shapefile is output name= "VesselName+Cont" (example= OECont for OkeanosExplorer and Cont for Contributor). Select the new feature layer and then export to a shapefile using the "export selection to shp" from the File menu. Attributes carried over during this process include the "Inform" field which is the location and name of the input .csar file Source_Used_Citation_Abbreviation: RBPFKN_Cont (CARIS contributor layer) Process_Date: 20151028 Source_Produced_Citation_Abbreviation: RBPHKN_ConV2_cvrage.shp Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Brian Andrews Contact_Organization: U.S. Geological Survey Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2348 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: bandrews@usgs.gov Process_Step: Process_Description: Step 2: Convert CARIS Contributor Layer to polygon Shapefile. Within CARIS Base Editor (v. 4.1.14) select the "Create" a "new feature layer" from the main menu and use the spatial extent of the combined surface and name the new feature layer. The extents of each surface used as input during the combine process is transferred to new feature layer. Select the new feature layer and then export to a shapefile using the "export selection to shp" from the File menu. Attributes carried over during this process include the "Inform" field which is the location and name of the input .csar file. Source_Used_Citation_Abbreviation: HenPF_100mV2_cont. (contributor Layer) Process_Date: 20151028 Source_Produced_Citation_Abbreviation: HenPF_100mV2.shp Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Brian Andrews Contact_Organization: U.S. Geological Survey Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2348 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: bandrews@usgs.gov Process_Step: Process_Description: Step 3: Convert CARIS Contributor Layer to polygon Shapefile. Within CARIS Base Editor (v. 4.1.14) select the "Create" a "new feature layer" from the main menu and use the spatial extent of the combined surface and name the new feature layer. The extents of each surface used as input during the combine process are transferred to a new feature layer. Select the new feature layer and then export to a shapefile using the "export selection to shp" from the File menu. Attributes carried over during this process include the "Inform" field which is the location and name of the input .csar file Part 2: Make new Esri File Geodatabase (ver 9.3) to manage the contributor layers. Import the shapefiles from Part 1 above into the geodatabase using the context menu in ArcCatalog (ver 9.3). Input shapefile="VesselName"ContPgon.shp. Output feature class = "VesselName"ContPgon Source_Used_Citation_Abbreviation: OkeanosCombV2CDIG (contributor layer) Process_Date: 20151028 Source_Produced_Citation_Abbreviation: OkeanosCombV2CDIG.shp Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Brian Andrews Contact_Organization: U.S. Geological Survey Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2348 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: bandrews@usgs.gov Process_Step: Process_Description: Step 4: Convert CARIS Contributor Layer to polygon shapefile. Within CARIS Base Editor (v. 4.1.14) select the "Create" a "new feature layer" from the main menu and use the spatial extent of the combined surface and name the new feature layer. The extents of each surface used as input during the combine process are transferred to new feature layer. Select the new feature layer and then export to a shapefile using the "export selection to shp" from the File menu. Attributes carried over during this process include the "Inform" field which is the location and name of the input .csar file. Source_Used_Citation_Abbreviation: OECombFH100mV2 (contributor Layer) Process_Date: 20151028 Source_Produced_Citation_Abbreviation: OECombFH100mV2.shp Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Brian Andrews Contact_Organization: U.S. Geological Survey Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2348 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: bandrews@usgs.gov Process_Step: Process_Description: Step 5: Convert CARIS Contributor Layer to polygon Shapefile. Within CARIS Base Editor (v. 4.1.14) select the "Create" a "new feature layer" from the main menu and use the spatial extent of the combined surface and name the new feature layer. The extents of each surface used as input during the combine process are transferred to new feature layer. Select the new feature layer and then export to a shapefile using the "export selection to shp" from the File menu. Attributes carried over during this process include the "Inform" field which is the location and name of the input .csar file. Source_Used_Citation_Abbreviation: RBPFKN_HenPFCombMGL (contributor Layer) Process_Date: 20151102 Source_Produced_Citation_Abbreviation: RBPFKN_HenPFCombMGL.shp Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Brian Andrews Contact_Organization: U.S. Geological Survey Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2348 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: bandrews@usgs.gov Process_Step: Process_Description: Step 6. Mosaic the individual Contributor feature class layers into one feature class using the "Update" tool in ArcGIS (v. 10.3.1). The update features are used to erase, then replace, the features in the input feature class or feature layer. Three consecutive update steps were performed: Update 1: Input feature: RBPFKN_ContV2.shp Update feature: HenPF_100mV2.shp Output feature: UpdateRBPFKNHen.shp Update 2: Input feature: UpdateRBPFKNHen.shp Update feature: OkeanosCombV2CDIG.shp Output feature: UpdateRBPFKNHenOE.shp Update 3: Input feature: UpdateRBPFKNHenOE.shp Update feature:OECombFH100mV2.shp Output feature:UpdateRBPFKNHenOEFH.shp Source_Used_Citation_Abbreviation: RBPFKN_ContV2.shp Source_Used_Citation_Abbreviation: UpdateRBPFKNHen.shp Source_Used_Citation_Abbreviation: UpdateRBPFKNHenOE.shp Process_Date: 20151102 Source_Produced_Citation_Abbreviation: OECombFH100mV2.shp Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Brian Andrews Contact_Organization: U.S. Geological Survey Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2348 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: bandrews@usgs.gov Process_Step: Process_Description: Step 7: Update the AtlanticMarginBathSource.shp published in version 1, with UpdateRBPFKNHenOEFH.shp to produce AtlanticMarginBathSource_V2.shp. Finally, project the shapefile from Mercator to Geographic WGS 84 coordinate system using ArcToolbox (v. 10.3.1) Source_Used_Citation_Abbreviation: UpdateRBPFKNHenOEFH.shp Source_Used_Citation_Abbreviation: AtlanticMarginBathSource.shp Process_Date: 20151210 Source_Produced_Citation_Abbreviation: AtlanticMarginBathSource_V2.shp Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Brian Andrews Contact_Organization: U.S. Geological Survey Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2348 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: bandrews@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: G-polygon Point_and_Vector_Object_Count: 22 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geodetic_Model: Horizontal_Datum_Name: D_WGS_1984 Ellipsoid_Name: WGS_1984 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257224 Geographic: Geographic_Coordinate_Units: Decimal degrees Latitude_Resolution: 0.000001 Longitude_Resolution: 0.000001 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: AtlanticMarginBathSource Entity_Type_Definition: polygon shapefile delineating the source of all input bathymetric grids. Entity_Type_Definition_Source: USGS 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: Shape_Leng Attribute_Definition: Perimeter length of feature in meters (Mercator, WGS84) automatically calculated in the feature class before it was exported as a shapefile. Attribute_Definition_Source: Esri Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 36200.11 Range_Domain_Maximum: 4920990.45 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: Shape_Area Attribute_Definition: Area of feature in square meters (mercator projection) calculated in the feature class before it was exported to a shapefile. Attribute_Definition_Source: Esri Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 26070128.63 Range_Domain_Maximum: 142207623191.30 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: CruiseName Attribute_Definition: The name of the cruise as listed at NCEI/NGDC. CruiseName value of "none" means the data were not archived or distributed by NGDC/NCEI. Attribute_Definition_Source: NGDC Attribute_Domain_Values: Unrepresentable_Domain: Character set Attribute: Attribute_Label: NGDC_ID Attribute_Definition: The Identification number generated by NCEI/NGDC. NGDC_ID value of N/A means that data do not have a NGDC_ID because the data are not archived or distributed by NGCD/NCEI. Attribute_Definition_Source: NGDC Attribute_Domain_Values: Unrepresentable_Domain: Character set Attribute: Attribute_Label: Source Attribute_Definition: The name of the CARIS fieldsheet that was used generate the polygon boundary. Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: Character set Attribute: Attribute_Label: vessel Attribute_Definition: Name of the survey vessel used to collect the data. Vessel name of "None" describes the boundary of the TIN used to fill small gaps between surveys. Attribute_Definition_Source: NGDC Attribute_Domain_Values: Unrepresentable_Domain: Character set. Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Brian Andrews Contact_Organization: U.S. Geological Survey Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: USA Contact_Voice_Telephone: 508-548-8700 x2348 Contact_Electronic_Mail_Address: bandrews@usgs.gov Resource_Description: AtlanticMarginBathSource_V2.zip: contains the Esri polygon shapefile (AtlanticMarginBathSource_V2.shp), AtlanticMarginBathSource_V2.jpg browse graphic, and the associated FGDC metadata in xml, txt, HTML, and FAQ format. Distribution_Liability: Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. 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. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: shapefile Format_Version_Number: ArcGIS 10.3.1 Format_Specification: Esri polygon shapefile. Format_Information_Content: This WinZip file contains an Esri polygon shapefile and associated metadata. File_Decompression_Technique: WinZip Transfer_Size: 1.0 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2012/1266/GIS/shapefile/AtlanticMarginBathSource_V2.zip Access_Instructions: Data can be downloaded via the World Wide Web (WWW) Fees: none Technical_Prerequisites: This zip file contains data available in Environmental Systems Research Institute (Esri) shapefile format. The user must have software capable of uncompressing the WinZip file and displaying the shapefile. Metadata_Reference_Information: Metadata_Date: 20160317 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Brian Andrews Contact_Organization: U.S. Geological Survey Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2348 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: bandrews@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time