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 Alaska Geospatial Data Committee
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Precipitation Regions of the Cook Inlet Basin - NAWQA

Metadata:


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: <URL:https://agdc.usgs.gov/data/usgs/water>

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: <URL:https://agdcftp1.wr.usgs.gov/pub/usgs/water/nawqa_precip.tar.gz>
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


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URL: https://agdc.usgs.gov/data/usgs/water/metadata/nawqa_precip.html
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