Identification_Information: Citation: Citation_Information: Originator: Tim Brabets Publication_Date: 1998 Publication_Time: Title: Glaciers in the Cook Inlet Basin - National Water-Quality Assessment Program Edition: Geospatial_Data_Presentation_Form: Series_Name Issue_Identification Publication_Information: Publication_Place: Anchorage Publisher: USGS Other_Citation_Details: Online_Linkage: Description: Abstract: nawqa_glac1 is a polygon coverage of glaciers in the Cook Inlet National Water- Quality Assessment (NAWQA) study unit. The Cook Inlet NAWQA is located in southcentral Alaska and the coverage was created from 1:2,000,000 digital line graphs (DLGs). Purpose: The purpose of nawqa_glac1 is to give a general overview of the amount of glaciers present in the Cook Inlet Basin. Because glaciers play an important part in the hydrology of rivers and streams, their absence or presence will be a critical factor in the selection of water-quality sampling sites for the Cook Inlet NAWQA. Supplemental_Information: Procedures_Used: The glacier coverage was created by USGS and Alaska Division of Natural Resources (ADNR) personnel using the USGS 1:2,000,000 digital line graphs (DLG) and techniques described by Domaratz and others (1982). Polygons representing glaciers were assigned a value of 40 to the item MAJ in the polygon attribute table. The drainage basin boundaries of the Cook Inlet Basin, developed from 1:250,000 quadrangle maps, were used as the boundaries of the coverage. Revisions: No revisions have been done. Reviews_Applied_to_Data: Coverage and documentation was reviewed by Roy Glass. An editorial review of the documentation was done by Liska Snyder. Related_Spatial_and_Tabular_Data_Sets: None Other_References_Cited: Domaratz, M.A., Hallam, C.A., Schmidt, W.E., and Calkins, H.W., 1982, Digital line graphs from 1:2,000,000-scale maps (USGS cartographic standards): U.S. Geological Survey Circular 895-D, 40 p. Notes: None Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 19970620 Time_of_Day: 1000 Currentness_Reference: Status: Progress: Complete Maintenance_and_Update_Frequency: None planned. Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -154.81247336 East_Bounding_Coordinate: -146.27258973 North_Bounding_Coordinate: 63.79307302 South_Bounding_Coordinate: 58.54492657 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: glaciers, Cook Inlet, nawqa, akwrd Place: Place_Keyword_Thesaurus: None Place_Keyword: South central Alaska, Cook Inlet basin Stratum: Stratum_Keyword_Thesaurus: None Stratum_Keyword: None Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: None Access_Constraints: Point_of_Contact USGS-WRD Use_Constraints: Since the coverage was created from 1:2,000,000 (DLGs), caution should be used if the data are used with relatively small scales. Point_of_Contact: Data_Set_Credit: Alaska Department of Natural Resources, USGS EROS field office, Anchorage, AK Security_Information: Security_Classification_System: None Security_Classification: Unclassified Security_Handling_Description: None Native_Data_Set_Environment: dgux, 5.4R3.10, AViiON UNIX, ARC/INFO version 7.0.4 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: See Entity_Attribute_Information Quantitative_Attribute_Accuracy_Assessment: Attribute_Accuracy_Value: See Explanation Attribute_Accuracy_Explanation: Attribute accuracy is described, where present, with each attribute defined in the Entity and Attribute Section. Logical_Consistency_Report: Polygon and chain-node topology present. Completeness_Report: None Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Unknown. Quantitative_Horizontal_Positional_Accuracy_Assessment: Horizontal_Positional_Accuracy_Value: 100 meters Horizontal_Positional_Accuracy_Explanation: Resolution as reported Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Publication_Date: Title: Source_Scale_Denominator: 2,000,000 Type_of_Source_Media: Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: Source_Currentness_Reference: Source_Citation_Abbreviation: Source_Contribution: Process_Step: Process_Description: APPEND /GREQ/92002/COVERS/GLACIER POLY ALL Source_Used_Citation_Abbreviation: None Process_Date: 19911130 Process_Time: 2314 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: ARCEDIT /GREQ/92002/COVERS/GLACIER Source_Used_Citation_Abbreviation: None Process_Date: 19911130 Process_Time: 2340 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: CLEAN GLACIER # 0 1 POLY Source_Used_Citation_Abbreviation: None Process_Date: 19911130 Process_Time: 2353 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: LABELERRORS GLACIER Source_Used_Citation_Abbreviation: None Process_Date: 19911130 Process_Time: 2353 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: ARCEDIT /GREQ/92002/COVERS/GLACIER Source_Used_Citation_Abbreviation: None Process_Date: 19911130 Process_Time: 2357 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: BUILD GLACIER POLY Source_Used_Citation_Abbreviation: None Process_Date: 19911201 Process_Time: ' 2' Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: LABELERRORS GLACIER Source_Used_Citation_Abbreviation: None Process_Date: 19911201 Process_Time: ' 5' Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: EXTERNALALL Source_Used_Citation_Abbreviation: None 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None Process_Step: Process_Description: TBRABETS ARCEDIT /PROJECTS/PROJ_SLED/NAWQA/NAWQA_GLAC Source_Used_Citation_Abbreviation: None Process_Date: 19970618 Process_Time: 0955 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS BUILD NAWQA_GLAC POLY Source_Used_Citation_Abbreviation: None Process_Date: 19970618 Process_Time: 0956 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS DOCUMENT NAWQA_GLAC CREATE TBRABETS Source_Used_Citation_Abbreviation: None Process_Date: 19970620 Process_Time: 1051 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS DOCUMENT NAWQA_GLAC UPDATE TBRABETS Source_Used_Citation_Abbreviation: None Process_Date: 19970620 Process_Time: 1421 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS ARCEDIT /PROJECTS/PROJ_SLED/NAWQA/NAWQA_GLAC1 Source_Used_Citation_Abbreviation: None Process_Date: 19970724 Process_Time: 1210 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Source_Used_Citation_Abbreviation: None Process_Date: 19970725 Process_Time: 1447 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS BUILD NAWQA_GLAC1 POLY Source_Used_Citation_Abbreviation: None Process_Date: 19970725 Process_Time: 1447 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS DOCUMENT NAWQA_GLAC1 UPDATE TBRABETS Source_Used_Citation_Abbreviation: None Process_Date: 19980116 Process_Time: 0842 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS DOCUMENT NAWQA_GLAC1 UPDATE TBRABETS Source_Used_Citation_Abbreviation: None Process_Date: 19980120 Process_Time: 1422 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS COPY /PROJECTS/PROJ_SLED/NAWQA/NAWQA_GLAC1 Source_Used_Citation_Abbreviation: None Process_Date: 19980121 Process_Time: 0958 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS DOCUMENT 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Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 132 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 557 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 132 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Albers Conical Equal Area Albers_Conical_Equal_Area: Standard_Parallel: 55 Standard_Parallel: 55 Longitude_of_Central_Meridian: -154 Latitude_of_Projection_Origin: 50 False_Easting: 0.00000 False_Northing: 0.00000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 1.0 Ordinate_Resolution: 1.0 Planar_Distance_Units: METERS Geodetic_Model: Horizontal_Datum_Name: Unknown Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.98 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: NAWQA_GLAC.PAT Entity_Type_Definition: Polygon attribute table Entity_Type_Definition_Source: Digital line graphs Attribute: Attribute_Label: - Attribute_Definition: Polygon attribute table Attribute_Definition_Source: Digital line graphs Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: - Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: AREA Attribute_Definition: Area of poly/region in square coverage units Attribute_Definition_Source: Computed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Positive real numbers Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: PERIMETER Attribute_Definition: Perimeter of poly/region in coverage units Attribute_Definition_Source: Computed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Positive real numbers Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: NAWQA_GLAC# Attribute_Definition: Internal feature number Attribute_Definition_Source: Computed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: NAWQA_GLAC-ID Attribute_Definition: User-assigned feature number Attribute_Definition_Source: User-defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Integer Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: MAJ Attribute_Definition: MAJ is an indicator as to whether or not the polygon is a glacier Attribute_Definition_Source: Alaska Department of Natural Resources Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: If MAJ = 40, polygon is a glacier. If not 40, polygon is not a glacier Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Detailed_Description: Entity_Type: Entity_Type_Label: NAWQA_GLAC.AAT Entity_Type_Definition: Arc attribute table Entity_Type_Definition_Source: Digital line graphs Attribute: Attribute_Label: - Attribute_Definition: Arc attribute table Attribute_Definition_Source: Digital line graphs Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: - Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: FNODE# Attribute_Definition: Internal number of from-node Attribute_Definition_Source: Computed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: TNODE# Attribute_Definition: Internal number of to-node Attribute_Definition_Source: Computed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: LPOLY# Attribute_Definition: Internal number of poly to left of arc Attribute_Definition_Source: Computed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: RPOLY# Attribute_Definition: Internal number of poly to right of arc Attribute_Definition_Source: Computed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: LENGTH Attribute_Definition: Length of arc in coverage units Attribute_Definition_Source: Computed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Positive real numbers Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: NAWQA_GLAC# Attribute_Definition: Internal feature number Attribute_Definition_Source: Computed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: NAWQA_GLAC-ID Attribute_Definition: User-assigned feature number Attribute_Definition_Source: User-defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Integer Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: ARC_ON Attribute_Definition: ARC_ON refers to arcs added to large glaciers Attribute_Definition_Source: Alaska Department of Natural Resources Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: ARC_ON = 0 refers to added arcs Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Overview_Description: Entity_and_Attribute_Overview: Standard items are contained in the polygon attribute table with the exception of the item MAJ. If MAJ = 40, the polygon is a glacier. If MAJ is not 40, the polygon is not a glacier. Standard items are contained in the arc attribute table with the exception of the item ARC_ON. If ARC_ON = 1, the arc was added to reduce the size of the glacier. If ARC_ON = 0, the arc was not added. Entity_and_Attribute_Detail_Citation: Not Available Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Tim Brabets Contact_Organization: USGS-WRD Contact_Position: Hydrologist Contact_Address: Address_Type: mailing address Address: 4230 University Drive, Suite 201 City: Anchorage State_or_Province: AK Postal_Code: 99508 Country: USA Contact_Voice_Telephone: 907-786-7105 Contact_Facsimile_Telephone: 907-786-7150 Contact_Electronic_Mail_Address: tbrabets@usgs.gov Hours_of_Service: 8:00 - 4:30 AST Resource_Description: Alaska Geospatial Data Clearinghouse Distribution_Liability: No liability is assumed Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ARCG ARC/INFO Generate format Format_Version_Number: 7.0.4 File_Decompression_Technique: gzip Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: Fees: Free Metadata_Reference_Information: Metadata_Date: 19980227 Metadata_Contact: Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: Local Time Metadata_Security_Information: Metadata_Security_Classification_System: None Metadata_Security_Classification: Unclassified Metadata_Security_Handling_Description: None