Geological Society of America Gulf of Andyr Bathymetry

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: U.S. Geological Survey

Publication_Date: 19970430

Title: Geological Society of America Gulf of Andyr Bathymetry

Geospatial_Data_Presentation_Form: vector digital data

Publication_Information:

Publication_Place: Anchorage, Alaska

Publisher: U.S. Geological Survey

Other_Citation_Details:

Source map compiled by Richard Pratt and Fred Walton, Geological Society of America.

Description:

Abstract:

Bathymetric contours were generated from soundings collected during surveys and cruises by the Hydrographic Office, National Ocean Survey, and Coast and Geodetic Survey. The region covered by the map is the Bering Sea Shelf from Bristol Bay, Alaska to the Gulf of Anadyr, Russia. Bathymetry is in meters at 10 m intervals, with 5 m supplemental contours. The digitized portion includes the Anadyr Gulf and Bering Strait in Russian waters (west of the Exclusive Economic Zone), to supplement digitized National Ocean Service maps of US waters (Coastal Shelf Bathymetry of the Bering, Chukchi, and Beaufort Seas). The original paper map was produced by the Geological Society of America and published in 1974. In 1997, the USGS digitized the bathymetric contours for research purposes.

Purpose:

The map was produced by The Geological Society of America during a period of mineral and seismic exploration in the Bering Sea. The map was digitized by the USGS for purposes of marine animal research.

Supplemental_Information:

The USGS Alaska Science Center created this and other digital bathymetry coverages to support marine animal research in the Bering and Chukchi Seas. The completed coverages are being stored on the Coastal and Marine Geoscience Data System (CMGDS) for archival purposes only. The coverage "GSA Gulf of Andyr Bathymetry" is titled ANADBATH_3GEO (anad=Anadyr Gulf, bath=bathymetry, 3=polygon topology, geo=geographic projection)

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1974

Currentness_Reference: map publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -180

East_Bounding_Coordinate: -168

North_Bounding_Coordinate: 66

South_Bounding_Coordinate: 60

Keywords:

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Categories

Theme_Keyword: geoscientificInformation

Theme_Keyword: oceans

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: bathymetry

Theme_Keyword: contours

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: western Alaska

Place_Keyword: eastern Russia

Place_Keyword: Anadyr Gulf

Place_Keyword: Bering Sea shelf

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 and Geological Society of America as the originator of the dataset.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Alaska Science Center, Marine and Fresh Water Ecology Branch

Contact_Address:

Address_Type: mailing and physical

Address: Biological Resources Division, U.S. Geological Survey

Address: 1011 E. Tudor Road

City: Anchorage

State_or_Province: Alaska

Postal_Code: 99503

Country: USA

Contact_Voice_Telephone: 907-786-3512

Contact_Facsimile_Telephone: 907-786-3636

Hours_of_Service: 8:00 am to 4:00pm Monday through Friday

Contact_Instructions: None

Native_Data_Set_Environment: Esri Arc/INFO 7.1

Cross_Reference:

Citation_Information:

Originator: National Ocean Service

Originator: U.S. Department of Commerce

Publication_Date: multiple

Title:

Coastal Shelf Bathymetry of the Bering, Chukchi, and Beaufort Seas

Geospatial_Data_Presentation_Form: Map

Series_Information:

Series_Name: Bathymetric Maps

Publication_Information:

Publication_Place: Washington, D.C.

Publisher: Department of Commerce, NOAA, NOS

Other_Citation_Details:

Maps available for purchase from National Geophysical Data Center, E/GC3, 325 Broadway, Boulder, Colorado 80303-3228.

Cross_Reference:

Citation_Information:

Originator: U.S. Geological Survey

Publication_Date: 1976

Title:

Plate 1. Topographic and Bathymetric Map of the Northern Bering Sea Region

Geospatial_Data_Presentation_Form: Map

Series_Information:

Series_Name: U.S. Geological Survey Professional Paper

Issue_Identification: 759-B

Publication_Information:

Publication_Place: Washington, D.C.

Publisher: U.S. Government Printing Office

Other_Citation_Details:

Hopkins, D. M., C. H. Nelson, R. B. Perry, and T. R. Alpha. 1976. Physiographic subdivisions of the Chirikov Basin, Northern Bering Sea (studies on the marine geology of the Bering Sea). Geological Survey Professional Paper 759-B. U.S. Government Printing Office. 7pp. 3 plates.

Cross_Reference:

Citation_Information:

Originator: U.S. Geological Survey

Publication_Date: 1988

Title:

Bathymetric Map of the Bowers Basin and Aleutian Basin east of the U.S.-U.S.S.R. 1867 Convention Line, Bering Sea

Geospatial_Data_Presentation_Form: Map

Series_Information:

Series_Name: Open File Report

Issue_Identification: 89-548

Publication_Information:

Publication_Place: Menlo Park, CA

Publisher: U.S. Geological Survey

Other_Citation_Details:

Hall, R.K., H.A. Karl, P.R. Carlson, A.K. Cooper, J.V. Gardner, R.E. Hunter, M.S. Marlow, and A.J. Stevenson. 1989. Bathymetric map of the Aleutian Basin and Bowers Basin east of the U.S.-U.S.S.R. 1867 Convention Line, Bering Sea. U. S. Geological Survey Open-File Report 89-548, 6 pp, 1 map, scale 1:2,000,000.

Cross_Reference:

Citation_Information:

Originator: U.S. Geological Survey

Publication_Date: 1984

Title: Bathymetric map of the Chukchi Sea

Geospatial_Data_Presentation_Form: Map

Series_Information:

Series_Name: Miscellaneous Investigations Series

Issue_Identification: Map I-1182-D

Publication_Information:

Publication_Place: Washington, D.C.

Publisher: U.S. Geological Survey

Other_Citation_Details:

Hill, E. R., A. Grantz, S. D. May, and M. Smith. 1984. Bathymetric map of the Chukchi Sea. U.S. Geological Survey, Misc. Inves. Series I-1182-D.

Cross_Reference:

Citation_Information:

Originator: U.S. Geological Survey

Publication_Date: 1976

Title:

Bathymetric Map of the Chukchi Sea and Arctic Ocean & bathymetric Map of the Aleutian Trench and Bering Sea

Geospatial_Data_Presentation_Form: Map

Series_Information:

Series_Name: Open File Report

Issue_Identification: 76-821 and 76-823

Publication_Information:

Publication_Place: Washington, D.C.

Publisher: U.S. Geological Survey

Other_Citation_Details:

Schumacher, G. M. 1976. Bathymetric map of the Chukchi Sea and Arctic Ocean. USGS Open File Report 76-823. Schumacher, G. M. 1976. Bathymetric map of the Aleutian Trench and Bering Sea. USGS Open File Report 76-821.

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Attribute accuracy was tested by manually comparing hard copy plots to the source maps. Accuracy of the source maps is related to the contouring algorithm used to derive the contours, accuracy and density of soundings used to generate contours, and changes in bathymetry since the data were collected.

Logical_Consistency_Report:

All polygon features are checked for topology using Arc/INFO software. Each polygon begins and ends with a node feature. All nodes are checked for errors so that there are no dangling features. There are no duplicate lines or polygons. All nodes well snap together and close polygons based on a specified tolerance. If the node is not within tolerance it is adjusted manually. The tests for logical consistency are performed in Arc/INFO.

Completeness_Report:

Contours were digitized from the Bathymetric Map of the Bering Shelf published by The Geological Society of America. Contours were digitized at 10 m intervals to 200 m. Intermediate 5 m contours were not included in the GIS product because many were dangling arcs that could not be used to build polygons. Contours beyond 200 m are available on the source map, but were not included in the digitized product. Only the part of the map in Russian waters (west of the Exclusive Economic Zone) was digitized to provide a compliment for the Coastal Shelf Bathymetry map (see cross-references).

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Horizontal positional accuracy was tested using Arc/INFO's RMS errors generated when the digitized map is converted from table inches to real world coordinates. RMS errors were low.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: The Geological Society of America

Publication_Date: 1974

Title: Bathymetric Map of the Bering Sea

Publication_Information:

Publication_Place: Boulder, CO

Publisher: The Geological Society of America

Type_of_Source_Media: Map

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1974

Source_Currentness_Reference: Publication date

Source_Citation_Abbreviation: GSA_Bathymetry_Bering

Source_Contribution:

The map provided the bathymetric contours for the digitized vector data

Process_Step:

Process_Description:

Contours in Russian waters of the Bering Sea shelf were digitized from the Bathymetric Map of the Bering Shelf published by The Geological Society of America. An additional strip was digitized on the US side of the Exclusive Economic Zone, providing overlap to the Coastal Shelf Bathymetry map to allow for edge-matching by product users. Contours were digitized at 10 m intervals except where contours were missing from the source map.

Source_Used_Citation_Abbreviation: GSA_Bathymetry_Bering

Process_Date: 1997

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Resource Data, Inc., Anchorage, Alaska

Spatial_Data_Organization_Information:

Indirect_Spatial_Reference: Bathymetric contours

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: String

Point_and_Vector_Object_Count: 283

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Entity point

Point_and_Vector_Object_Count: 93

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains

Point_and_Vector_Object_Count: 93

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Entity point

Point_and_Vector_Object_Count: 4

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.0020000000949949026

Longitude_Resolution: 0.0020000000949949026

Geographic_Coordinate_Units: Decimal Degrees

Geodetic_Model:

Horizontal_Datum_Name: D Clarke 1866

Ellipsoid_Name: Clarke 1866

Semi-major_Axis: 6378206.4

Denominator_of_Flattening_Ratio: 294.9786982

Vertical_Coordinate_System_Definition:

Depth_System_Definition:

Depth_Datum_Name: not specified on source map

Depth_Resolution: 10

Depth_Distance_Units: meters

Depth_Encoding_Method: Attribute values

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: anadbath_3geo.aat

Entity_Type_Definition: Bathymetry of the Gulf of Anadyr Arc Attribute Table (arcs)

Entity_Type_Definition_Source: USGS; ESRI

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: FNODE#

Attribute_Definition: Internal node number for the beginning of an arc (from-node).

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Whole numbers that are automatically generated.

Attribute:

Attribute_Label: TNODE#

Attribute_Definition: Internal node number for the end of an arc (to-node).

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Whole numbers that are automatically generated.

Attribute:

Attribute_Label: LPOLY#

Attribute_Definition: Internal node number for the left polygon.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Whole numbers that are automatically generated.

Attribute:

Attribute_Label: RPOLY#

Attribute_Definition: Internal node number for the right polygon.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Whole numbers that are automatically generated.

Attribute:

Attribute_Label: LENGTH

Attribute_Definition: Length of feature in internal units.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Positive real numbers that are automatically generated.

Attribute:

Attribute_Label: ANADBATH#

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: ANADBATH-ID

Attribute_Definition: User-defined feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: ELEVATION

Attribute_Definition:

Depth of bathymetric contour lines, in negative meters. Used to calculate polygon mid-depth elevation attribute. Arcs that fall along area boundaries or that were used to close dangling contours are coded with an elevation of 998.

Attribute_Definition_Source: USGS

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: -200

Attribute_Units_of_Measure: meters

Attribute:

Attribute_Label: OVERLAP

Attribute_Definition:

Features in the area of overlap between this dataset and the Coastal Shelf Bathymetry map are coded "T", all other features are coded "F". This attribute was included to aid in edge-matching the 2 datasets by product users.

Attribute_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: T/F

Enumerated_Domain_Value_Definition: True (T) or False (F)

Enumerated_Domain_Value_Definition_Source: USGS

Detailed_Description:

Entity_Type:

Entity_Type_Label: anadbath_3geo.pat

Entity_Type_Definition:

Bathymetry of the Gulf of Anadyr Polygon Attribute Table (polygons)

Entity_Type_Definition_Source: USGS; ESRI

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: AREA

Attribute_Definition: Area of feature in internal units squared.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Positive real numbers that are automatically generated.

Attribute:

Attribute_Label: PERIMETER

Attribute_Definition: Perimeter of feature in internal units.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Positive real numbers that are automatically generated.

Attribute:

Attribute_Label: ANADBATH#

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: ANADBATH-ID

Attribute_Definition: User-defined feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that were automatically generated.

Attribute:

Attribute_Label: ELEVATION

Attribute_Definition:

Polygon attribute calculated as the mid-point between bounding arcs, eg the elevation between -10 m and -20 m isobaths equals -15 m. Where a bathymetric contour was an "island" and there was no depth information inside the island, the elevation was coded as the bounding contour's depth. Elevations range from -5 to -195 m. Enclosed polygons deeper than 200 m are coded -999. All land polygons are labeled +5 m.

Attribute_Definition_Source: Geological Society of America

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -195

Range_Domain_Maximum: 5

Attribute:

Attribute_Label: OVERLAP

Attribute_Definition:

Features in the area of overlap between this dataset and the Coastal Shelf Bathymetry map are coded "T", all other features are coded "F". This attribute was included to aid in edge-matching the 2 datasets by product users.

Attribute_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: T/F

Enumerated_Domain_Value_Definition: True (T) or False (F)

Enumerated_Domain_Value_Definition_Source: USGS

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Alaska Science Center, Marine and Fresh Water Ecology Branch

Contact_Address:

Address_Type: Mailing and physical

Address: 1011 E. Tudor Road

City: Anchorage

State_or_Province: Alaska

Postal_Code: 99503

Country: USA

Contact_Voice_Telephone: 907-786-3512

Contact_Facsimile_Telephone: 907-786-3636

Hours_of_Service: 8:00am to 4:00pm Monday through Friday

Contact_Instructions: None

Distribution_Liability:

Although these data have been processed successfully on a computer system at the US Geological Survey (USGS) no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that these data are directly acquired from USGS server, and not indirectly through other sources which may have changed the data in some way. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. The USGS shall not be held liable for improper or incorrect use of the data described and/or contained herein.

Standard_Order_Process:

Non-digital_Form:

The map is no longer in print from the Geological Society of America (3300 Penrose Place, Boulder, CO 80301) but may be available at natural resource agency libraries that include literature on Alaska and/or Russia.

Digital_Form:

Digital_Transfer_Information:

Format_Name: ARC/INFO

Format_Version_Number: Version 7.1

File_Decompression_Technique: ArcInfo Interchange file (E00) and Zip (.zip)

Transfer_Size: 104 KB

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: <http://cmgds.marine.usgs.gov/data/walrus/>

Access_Instructions:

Use internet browse or file manager application (such as Windows Explorer) to access the directory (<http://cmgds.marine.usgs.gov/data/walrus/>) and download anadbath.zip

Fees: None, if obtained online.

Metadata_Reference_Information:

Metadata_Date: 19970425

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Alaska Science Center, Marine and Fresh Water Ecology Branch

Contact_Address:

Address_Type: Mailing and physical

Address: 1011 E. Tudor Road

City: Anchorage

State_or_Province: Alaska

Postal_Code: 99503

Country: USA

Contact_Voice_Telephone: 907-786-3512

Contact_Facsimile_Telephone: 907-786-3636

Hours_of_Service: 8:00am to 4:00pm Monday through Friday

Contact_Instructions: None

Metadata_Standard_Name: FGDC Content Standard 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_Security_Information:

Metadata_Security_Classification_System: Department of Defense

Metadata_Security_Classification: Unclassified

Metadata_Security_Handling_Description: None