Identification_Information: Citation: Citation_Information: Originator: Tim Brabets Publication_Date: 1998 Publication_Time: Title: Ecoregions of the Cook Inlet Basin - National Water-Quality Assessment Program Edition: 1 Geospatial_Data_Presentation_Form: Series_Name Issue_Identification Publication_Information: Publication_Place: Anchorage Publisher: USGS Other_Citation_Details: Online_Linkage: Description: Abstract: nawqa_ecoreg is a polygon coverage of the ecoregions contained in the Cook Inlet National Water-Quality Assessment (NAWQA) study unit. This coverage was developed by clipping a statewide coverage developed by Gallant and others in 1995 and is described in "Ecoregions of Alaska", USGS Professional Paper 1567. The original coverage was published at 1:2,000,000. nawqa_ecoreg is in the Albers Conical Equal Area projection and contains 51 polygons, 50 points, and 1899 strings. Purpose: The dataset was produced as a framework for organizing and interpreting environmental data. This coverage along with other coverages of the Cook Inlet NAWQA study unit will be used as a guide in designing the water-quality sampling scheme for the Cook Inlet Basin. Supplemental_Information: Procedures_Used: nawqa_ecoreg was created by clipping the statewide coverage of ecoregions developed by Gallant and others in 1995. The boundaries of nawqa_ecoreg were clipped from the statewide coverage using the drainage basin boundaries of Cook Inlet defined by the statewide hydrologic unit code (HUC) map, developed at a 1:250000 scale by the USGS-WRD. Revisions: Reviews_Applied_to_Data: Documentation review done by Roy Glass. Editorial review of documentation was done by Liska Snyder. Related_Spatial_and_Tabular_Data_Sets: Other_References_Cited: Gallant, A.L., Binnian, E.F., Omernik, J.M., and Shasby, M.B., 1995, Ecoregions of Alaska: U.S. Geological Survey Professional Paper 1567, 73 p. Notes: Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19970618 Beginning_Time: 1120 Ending_Date: 19970618 Ending_Time: 1120 Currentness_Reference: Status: Progress: Complete Maintenance_and_Update_Frequency: 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: ecoregions, Alaska, AKWRD, NAWQA, Cook Inlet Place: Place_Keyword_Thesaurus: None Place_Keyword: Ecoregions of the Cook Inlet NAWQA - Southcentral Alaska 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: Caution should be used when using the dataset at smaller scales. Point_of_Contact: 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 Data_Set_Credit: USGS EROS field office, Anchorage, Alaska 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 Cross_Reference: Citation_Information: Originator: Publication_Date: Publication_Time: Title: Edition: Geospatial_Data_Presentation_Form: Series_Information: Series_Name: Issue_Identification: Publication_Information: Publication_Place: Publisher: Other_Citation_Details: Online_Linkage: 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: 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: 2000000 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 ELIMINATE ECOREG ECOREG_REV Source_Used_Citation_Abbreviation: None Process_Date: 19970519 Process_Time: 0713 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS ARCEDIT /PROJECTS/PROJ_SLED/NAWQA/ECOREG_REV Source_Used_Citation_Abbreviation: None Process_Date: 19970519 Process_Time: 0730 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS ARCEDIT /PROJECTS/PROJ_SLED/NAWQA/ECOREG_REV Source_Used_Citation_Abbreviation: None Process_Date: 19970519 Process_Time: 0730 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS BUILD ECOREG_REV POLY Source_Used_Citation_Abbreviation: None Process_Date: 19970519 Process_Time: 0731 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS ARCEDIT /PROJECTS/PROJ_SLED/NAWQA/ECOREG_REV Source_Used_Citation_Abbreviation: None Process_Date: 19970519 Process_Time: 0739 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS BUILD ECOREG_REV POLY Source_Used_Citation_Abbreviation: None Process_Date: 19970519 Process_Time: 0740 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS ARCEDIT /PROJECTS/PROJ_SLED/NAWQA/ECOREG_REV Source_Used_Citation_Abbreviation: None Process_Date: 19970519 Process_Time: 0816 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS BUILD ECOREG_REV POLY Source_Used_Citation_Abbreviation: None Process_Date: 19970519 Process_Time: 0817 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS ARCEDIT /PROJECTS/PROJ_SLED/NAWQA/ECOREG_REV Source_Used_Citation_Abbreviation: None Process_Date: 19970519 Process_Time: 0828 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS BUILD ECOREG_REV POLY Source_Used_Citation_Abbreviation: None Process_Date: 19970519 Process_Time: 0839 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS ARCEDIT /PROJECTS/PROJ_SLED/NAWQA/ECOREG_REV Source_Used_Citation_Abbreviation: None Process_Date: 19970519 Process_Time: 1219 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS BUILD ECOREG_REV POLY Source_Used_Citation_Abbreviation: None Process_Date: 19970519 Process_Time: 1220 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS ARCEDIT /PROJECTS/PROJ_SLED/NAWQA/ECOREG_REV Source_Used_Citation_Abbreviation: None Process_Date: 19970520 Process_Time: 0802 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS ARCEDIT /PROJECTS/PROJ_SLED/NAWQA/ECOREG_REV Source_Used_Citation_Abbreviation: None Process_Date: 19970520 Process_Time: 0824 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS BUILD ECOREG_REV POLY Source_Used_Citation_Abbreviation: None Process_Date: 19970520 Process_Time: 0825 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS ARCEDIT /PROJECTS/PROJ_SLED/NAWQA/ECOREG_REV Source_Used_Citation_Abbreviation: None Process_Date: 19970520 Process_Time: 1038 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS BUILD ECOREG_REV POLY Source_Used_Citation_Abbreviation: None Process_Date: 19970520 Process_Time: 1039 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS ARCEDIT /PROJECTS/PROJ_SLED/NAWQA/ECOREG_REV Source_Used_Citation_Abbreviation: None Process_Date: 19970520 Process_Time: 1124 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS RENAME ECOREG_REV NAWQA_ECOREG Source_Used_Citation_Abbreviation: None Process_Date: 19970520 Process_Time: 1124 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS DOCUMENT NAWQA_ECOREG CREATE TBRABETS Source_Used_Citation_Abbreviation: None Process_Date: 19970618 Process_Time: 1302 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS DOCUMENT NAWQA_ECOREG UPDATE TBRABETS Source_Used_Citation_Abbreviation: None Process_Date: 19970620 Process_Time: 1328 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS DOCUMENT NAWQA_ECOREG UPDATE TBRABETS Source_Used_Citation_Abbreviation: None Process_Date: 19980116 Process_Time: 0733 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS DOCUMENT NAWQA_ECOREG UPDATE TBRABETS Source_Used_Citation_Abbreviation: None Process_Date: 19980120 Process_Time: 1415 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS COPY /PROJECTS/PROJ_SLED/NAWQA/NAWQA_ECOREG Source_Used_Citation_Abbreviation: None Process_Date: 19980121 Process_Time: 0954 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS DOCUMENT NAWQA_ECOREG UPDATE TBRABETS Source_Used_Citation_Abbreviation: None Process_Date: 19980121 Process_Time: 1512 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS DOCUMENT NAWQA_ECOREG UPDATE TBRABETS Source_Used_Citation_Abbreviation: None Process_Date: 19980122 Process_Time: 0708 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS DOCUMENT NAWQA_ECOREG UPDATE TBRABETS Source_Used_Citation_Abbreviation: None Process_Date: 19980123 Process_Time: 1524 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS DOCUMENT NAWQA_ECOREG UPDATE TBRABETS Source_Used_Citation_Abbreviation: None Process_Date: 19980131 Process_Time: 0810 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS DOCUMENT NAWQA_ECOREG UPDATE TBRABETS Source_Used_Citation_Abbreviation: None Process_Date: 19980224 Process_Time: 0900 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS DOCUMENT NAWQA_ECOREG UPDATE TBRABETS Source_Used_Citation_Abbreviation: None Process_Date: 19980225 Process_Time: 0927 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS DOCUMENT NAWQA_ECOREG UPDATE TBRABETS Source_Used_Citation_Abbreviation: None Process_Date: 19980225 Process_Time: 1227 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS DOCUMENT NAWQA_ECOREG UPDATE TBRABETS Source_Used_Citation_Abbreviation: None Process_Date: 19980225 Process_Time: 1248 Source_Produced_Citation_Abbreviation: None Process_Step: Process_Description: TBRABETS DOCUMENT NAWQA_ECOREG UPDATE TBRABETS Source_Used_Citation_Abbreviation: None Process_Date: 19980225 Process_Time: 1334 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: 50 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 1899 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 51 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_ECOREG.PAT Entity_Type_Definition: Polygon Attribute Table Entity_Type_Definition_Source: USGS Professional Paper 1567 Attribute: Attribute_Label: - Attribute_Definition: Polygon Attribute Table Attribute_Definition_Source: USGS Professional Paper 1567 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_ECOREG# 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_ECOREG-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: REGION Attribute_Definition: Specific ecoregion Attribute_Definition_Source: Computed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Positive Integers Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: TRANSITION Attribute_Definition: Transitional area Attribute_Definition_Source: Computed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Positive integers 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: Overview_Description: Entity_and_Attribute_Overview: In addition to the standard items found in the polygon attribute table, there are two added items - REGION and TRANSITION. REGION refers to the particular ecoregion:1-Alaska Peninsula Mountains; 15-Cook Inlet; 16-Alaska Range; 17-Copper Plateau; 19-Pacific Coastal Mountains; 20-Coastal Forests. TRANSITON refers to transitional areas: 1 is a transition area; 0 is not a transition area. 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: 19980225 Metadata_Contact: 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 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