Identification_Information: Citation: Citation_Information: Originator: Tim Brabets Publication_Date: 1998 Publication_Time: Title: Precipitation Regions of the Cook Inlet Basin - NAWQA Edition: Geospatial_Data_Presentation_Form: Series_Name Issue_Identification Publication_Information: Publication_Place: Anchorage, AK Publisher: USGS Other_Citation_Details: Online_Linkage: Description: Abstract: nawqa_precip is a line and polygon coverage of the precipitation values in the Cook Inlet Basin National Water-Quality Assessment (NAWQA) study area in southcentral Alaska. This coverage was created using a statewide map showing lines of equal annual precipitation prepared for a flood frequency study (Jones, S.H., and Fahl, C.B., 1994). Values for each polygon bounded by lines of equal annual precipitation were generally determined by averaging the precipitation values of the bounding lines. Purpose: The purpose of the coverage is to provide information on the amount of precipitation which occurs within the Cook Inlet watershed. This coverage, along with other GIS coverages, will be used to help locate water-quality sampling sites for the Cook Inlet NAWQA study. Supplemental_Information: Procedures_Used: The coverage was created using a statewide map (1:2,500,000) showing lines of equal annual precipitation The map developed in 1993 as part of a flood frequency study of Alaska's streams and rivers. Values of precipitation for the various polygons were determined by interpolation between the isolines. Boundaries of this coverage were drainage-basin divides for areas draining into Cook Inlet using a coverage containing hydrologic unit codes (HUC). Revisions: None Reviews_Applied_to_Data: Coverage and documentation was reviewed by Roy Glass. Editorial review of documentation was done by Liska Snyder. Related_Spatial_and_Tabular_Data_Sets: None Other_References_Cited: Jones, S.H., and Fahl, C.B., 1994, Magnitude and frequency of floods in Alaska and conterminous basins of Canada: U.S. Geological Survey Water-Resources Investigations Report 93-4179, 122 p., 2 plates. Notes: None Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 19970618 Time_of_Day: 1400 Currentness_Reference: None Status: Progress: Complete Maintenance_and_Update_Frequency: As the precipitation map of Alaska is updated, updates to the coverage will be made. In 1998 there were no plans for updating the precipitation map. Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -154.85231357 East_Bounding_Coordinate: -146.05590611 North_Bounding_Coordinate: 63.79333933 South_Bounding_Coordinate: 58.43916036 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: precipitation, Cook Inlet, NAWQA, AKWRD Place: Place_Keyword_Thesaurus: None Place_Keyword: Cook Inlet watershed, Southcentral Alaska Stratum: Stratum_Keyword_Thesaurus: None Stratum_Keyword: None Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: None Access_Constraints: None Point_of_Contact USGS-WRD Use_Constraints: Caution should be used when using scales smaller than 1:2,500,000 Point_of_Contact: Data_Set_Credit: USGS EROS field office, Anchorage, AK, Roy Glass, Emily Binnian 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 topology present. Completeness_Report: 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: 250000 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: TBRABETS MAPJOIN PRECIP POLY FEATURES Source_Used_Citation_Abbreviation: None Process_Date: 19970513 Process_Time: 1507 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS RENAME PRECIP NAWQA_PRECIP Source_Used_Citation_Abbreviation: None Process_Date: 19970513 Process_Time: 1509 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS ARCEDIT /PROJECTS/PROJ_SLED/NAWQA/NAWQA_PRECIP Source_Used_Citation_Abbreviation: None Process_Date: 19970513 Process_Time: 1522 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS ARCEDIT /PROJECTS/PROJ_SLED/NAWQA/NAWQA_PRECIP Source_Used_Citation_Abbreviation: None Process_Date: 19970514 Process_Time: 0758 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS BUILD NAWQA_PRECIP POLY Source_Used_Citation_Abbreviation: None Process_Date: 19970514 Process_Time: 0759 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS ARCEDIT /PROJECTS/PROJ_SLED/NAWQA/NAWQA_PRECIP Source_Used_Citation_Abbreviation: None Process_Date: 19970514 Process_Time: 0822 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS BUILD NAWQA_PRECIP POLY Source_Used_Citation_Abbreviation: None Process_Date: 19970514 Process_Time: 0822 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS ARCEDIT /PROJECTS/PROJ_SLED/NAWQA/NAWQA_PRECIP Source_Used_Citation_Abbreviation: None Process_Date: 19970514 Process_Time: 0829 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS BUILD NAWQA_PRECIP POLY Source_Used_Citation_Abbreviation: None Process_Date: 19970514 Process_Time: 0829 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS ARCEDIT /PROJECTS/PROJ_SLED/NAWQA/NAWQA_PRECIP Source_Used_Citation_Abbreviation: None Process_Date: 19970514 Process_Time: 0841 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS BUILD NAWQA_PRECIP POLY Source_Used_Citation_Abbreviation: None Process_Date: 19970514 Process_Time: 0842 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS ARCEDIT /PROJECTS/PROJ_SLED/NAWQA/NAWQA_PRECIP Source_Used_Citation_Abbreviation: None Process_Date: 19970514 Process_Time: 0844 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS BUILD NAWQA_PRECIP POLY Source_Used_Citation_Abbreviation: None Process_Date: 19970514 Process_Time: 0844 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS ARCEDIT /PROJECTS/PROJ_SLED/NAWQA/NAWQA_PRECIP Source_Used_Citation_Abbreviation: None Process_Date: 19970514 Process_Time: 1002 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS BUILD NAWQA_PRECIP POLY Source_Used_Citation_Abbreviation: None Process_Date: 19970514 Process_Time: 1003 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS ARCEDIT /PROJECTS/PROJ_SLED/NAWQA/NAWQA_PRECIP Source_Used_Citation_Abbreviation: None Process_Date: 19970514 Process_Time: 1327 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS BUILD NAWQA_PRECIP POLY Source_Used_Citation_Abbreviation: None Process_Date: 19970514 Process_Time: 1332 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS ARCEDIT /PROJECTS/PROJ_SLED/NAWQA/NAWQA_PRECIP Source_Used_Citation_Abbreviation: None Process_Date: 19970514 Process_Time: 1354 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS ARCEDIT /PROJECTS/PROJ_SLED/NAWQA/NAWQA_PRECIP Source_Used_Citation_Abbreviation: None Process_Date: 19970514 Process_Time: 1436 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS BUILD NAWQA_PRECIP POLY Source_Used_Citation_Abbreviation: None Process_Date: 19970514 Process_Time: 1436 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS ARCEDIT /PROJECTS/PROJ_SLED/NAWQA/NAWQA_PRECIP Source_Used_Citation_Abbreviation: None Process_Date: 19970514 Process_Time: 1509 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS ARCEDIT /PROJECTS/PROJ_SLED/NAWQA/NAWQA_PRECIP Source_Used_Citation_Abbreviation: None Process_Date: 19970515 Process_Time: 0710 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS ARCEDIT /PROJECTS/PROJ_SLED/NAWQA/NAWQA_PRECIP Source_Used_Citation_Abbreviation: None Process_Date: 19970515 Process_Time: 0719 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS DOCUMENT NAWQA_PRECIP CREATE TBRABETS Source_Used_Citation_Abbreviation: None Process_Date: 19970618 Process_Time: 1457 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS DOCUMENT NAWQA_PRECIP UPDATE TBRABETS Source_Used_Citation_Abbreviation: None Process_Date: 19970620 Process_Time: 1415 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS DOCUMENT NAWQA_PRECIP UPDATE TBRABETS Source_Used_Citation_Abbreviation: None Process_Date: 19980116 Process_Time: 1033 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS DOCUMENT NAWQA_PRECIP UPDATE TBRABETS Source_Used_Citation_Abbreviation: None Process_Date: 19980120 Process_Time: 1508 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS COPY /PROJECTS/PROJ_SLED/NAWQA/NAWQA_PRECIP Source_Used_Citation_Abbreviation: None Process_Date: 19980121 Process_Time: 1039 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS DOCUMENT NAWQA_PRECIP UPDATE TBRABETS Source_Used_Citation_Abbreviation: None Process_Date: 19980122 Process_Time: 0825 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS DOCUMENT NAWQA_PRECIP UPDATE TBRABETS Source_Used_Citation_Abbreviation: None Process_Date: 19980131 Process_Time: 0858 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS LABELERRORS NAWQA_PRECIP Source_Used_Citation_Abbreviation: None Process_Date: 19980306 Process_Time: 0713 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS NODEERRORS NAWQA_PRECIP DANGLE Source_Used_Citation_Abbreviation: None Process_Date: 19980306 Process_Time: 0713 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS DOCUMENT NAWQA_PRECIP UPDATE TBRABETS Source_Used_Citation_Abbreviation: None Process_Date: 19980306 Process_Time: 0718 Source_Produced_Citation_Abbreviation: None Cloud_Cover: 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: 73 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 390 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 74 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_PRECIP.PAT Entity_Type_Definition: Polygon Attribute Table Entity_Type_Definition_Source: Precipitation map of Alaska - USGS report WRIR 93-4179 Attribute: Attribute_Label: - Attribute_Definition: Polygon Attribute Table Attribute_Definition_Source: Precipitation map of Alaska - USGS report WRIR 93-4179 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_PRECIP# 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_PRECIP-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: INCHES Attribute_Definition: Estimated annual precipitation, in inches, for the given polygon Attribute_Definition_Source: USGS report WRIR 93-4179 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Any positive integer Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Overview_Description: Entity_and_Attribute_Overview: In addition to the standard items found in the polygon attribute table, one additional item, INCHES, was added to the table. INCHES represents the estimated annual precipitation, in inches, for the polygon. 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: 19980306 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