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COVERAGE COLO_DEM Digital Elevation Model - Colorado Creek near Colorada Cook Inlet Alaska National Water-Quality Assessment (NAWQA)

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Emily Creely, Tim Brabets
Publication_Date: 19991201
Title:
COVERAGE COLO_DEM Digital Elevation Model - Colorado Creek near Colorada Cook Inlet Alaska National Water-Quality Assessment (NAWQA)
Edition: (Version 1.0, September 27, 1999)
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: None
Issue_Identification: None
Publication_Information:
Publication_Place: Anchorage, AK
Publisher:
U.S. Geological Survey Scale_Denominator: 63,360
Online_Linkage: <URL:<http://agdc.usgs.gov/>

Description:
Abstract:

The USGS National Water-Quality Assessment (NAWQA) Program's Cook
Inlet Basin study unit is an intergrated water-quality assessment
designed to address a broad array of water-quality properties at
various spatial and temporal scales. These properties are then
related to natural and human factors that can influence the
quality of water. Colorado Creek near Colorado, located in
the northwest part of the Cook Inlet Basin, is one of 15 sites
selected for study.

Purpose:

The purpose of this data set is to give the Cook Inlet NAWQA study unit the information needed to do basic spatial analysis for a given watershed within the Cook Inlet Basin. A digital elevation model (DEM) of a basin can be used to determine the slope, aspect, and mean elevation of a watershed. DEMs can also be used as input to runoff and water-quality models.

Supplemental_Information:

Procedures_Used The DEMs of the 1:63,360 USGS quadrangles which comprise the Colorado Creek near Colorado basin were obtained in digital form from the USGS National Mapping Division. Each quadrangle was projected into an Albers Equal Area projection with the following parameters:

Projection ALBERS Units Meters Spheroid CLARKE1866 Datum NAD27 Parameters: 1st standard parallel 55 00 00 2nd standard parallel 65 00 00 central meridian -154 00 00 latitude of projection's origin 50 00 00 false easting (meters) 0.0000 false northing (meters) 0.0000

The quadrangles were then joined to form a single coverage. Using the basin boundary of Colorado Creek near Colorado and ARC/INFO GRID algebra commands, the DEM of Colorado Creek near Colorado basin was created.

Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19991201
Currentness_Reference: N/A

Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned.

Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -149.74450537
East_Bounding_Coordinate: -149.5818753
North_Bounding_Coordinate: 63.32574458
South_Bounding_Coordinate: 63.26442543

Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Watersheds, Digital Elevation Model
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Cook Inlet Basin, Alaska, Colorado Creek

Access_Constraints: NONE

Use_Constraints: For use at scales of 1:63,360 or smaller.

Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Tim Brabets
Contact_Organization: U.S. Geological Survey
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)

Data_Set_Credit: N/A

Native_Data_Set_Environment:
dgux, 5.4R3.10, AViiON UNIX ARC/INFO version 7.1.1

Cross_Reference:
Citation_Information:
Originator: Emily Creely, Tim Brabets
Publication_Date: 19991201
Title: Digital Elevation Model - Colorado Creek near Colorado
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: N/A
Issue_Identification: N/A
Publication_Information:
Publication_Place: Anchorage, AK
Publisher: USGS
Online_Linkage: <URL:http://agdc.usgs.gov/>


Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: N/A

Logical_Consistency_Report: N/A

Completeness_Report: N/A

Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: Clipped from 1:63,360 USGS DEMs

Lineage:
Process_Step:
Process_Description:
First draft of metadata created by tbrabets using FGDCMETA.AML ver. 1.31 10/16/98 on ARC/INFO data set /projects/proj_sled/naw_45/colo_dem
Process_Date: 19991201


Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Grid Cell
Row_Count: 212
Column_Count: 258


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: 65
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: 30.0
Ordinate_Resolution: 30.0
Planar_Distance_Units: Meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.4
Denominator_of_Flattening_Ratio: 294.98


Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:


COLO_DEM.VAT:

COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
    1  VALUE                  4    10     B      -
    5  COUNT                  4    10     B      -


COLO_DEM.STA:

COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
    1  MIN                    8    15     F      3
    9  MAX                    8    15     F      3
   17  MEAN                   8    15     F      3
   25  STDV                   8    15     F      3


Entity_and_Attribute_Detail_Citation: none


Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Position: Alaska District Office
Contact_Address:
Address_Type: mailing and physical address
Address: 4230 University Drive, Suite 201
City: Anchorage
State_or_Province: AK
Postal_Code: 99508
Country: USA
Contact_Voice_Telephone: 907-786-7100
Contact_Instructions: Contact via email
Contact_Electronic_Mail_Address: tbrabets@usgs.gov

Distribution_Liability:

Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data.

The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials.


Metadata_Reference_Information:
Metadata_Date: 19991201
Metadata_Review_Date: 19991201
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Tim Brabets
Contact_Position: Hydrologist
Contact_Address:
Address_Type: mailing and physical 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)
Metadata_Standard_Name:
FGDC Content Standards for Digital Geospatial Metadata ("CSDGM version 2")
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Access_Constraints: none
Metadata_Use_Constraints: none


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Page Last Modified: Tuesday, 15-Jan-2013 09:06:56 AKST