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Ecoregions of the Cook Inlet Basin - National Water-Quality Assessment Program

Metadata:


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

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


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