LANDFIRE.AK_DEM

Metadata also available as

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 2006
Title: LANDFIRE.AK_DEM
Edition: Stage I Data
Geospatial_Data_Presentation_Form: SDE raster digital data
Series_Information:
Series_Name: Elevation Derivatives for National Applications (EDNA)
Publication_Information:
Publication_Place: USGS EROS, Sioux Falls, South Dakota
Publisher: U.S. Geological Survey
Online_Linkage:
Server=edclfs1d; Service=port: 5151; User=landfire; Version=SDE.DEFAULT
Online_Linkage:
Server=edclfs1d; Service=port: 5151; User=landfire; Version=SDE.DEFAULT
Description:
Abstract:
This file contains one of many raster grids of the Elevation Derivatives for National Applications (EDNA), a multi-layered database that provides systematic and consistent topographically-derived hydrologic derivatives. The filled DEM grid was created from the original elevation data by filling all of the depressions, or sinks, in the original DEM. To create this grid, an algorithm was used to loacted and fill all depressions or sinks where there was no flow from pixel to pixel. During this process, efforts were made to maintain natural sink features.
Purpose:
The filled DEM was created so that spurious sinks, where there was no flow from pixel to pixel within a hydrologic unit, could be filled to create flow direction and flow accumulation. Natural sink features were maintained.
Supplemental_Information:
The Elevation Derivatives for National Applications (EDNA) was completed by a consortium of participants, including the USDOI Geological Survey for Earth Resources Observation and Science (USGS EROS) in Sioux Falls, South Dakota, the USGS National Mapping Division (USGS/NMD), the USGS Water Resources Division (USGS/WRD), the National Severe Storms Laboratory (NSSL), and the Environmental Protection Agency (EPA).
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date:
REQUIRED: The year (and optionally month, or month and day) for which the data set corresponds to the ground.
Range_of_Dates/Times:
Beginning_Date: 20000101
Ending_Date: Present
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -179.8299135763675
East_Bounding_Coordinate: -138.75803269007818
North_Bounding_Coordinate: 71.14926911648406
South_Bounding_Coordinate: 50.824773478534226
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: raster digital data
Theme_Keyword: EDNA
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: LANDFIRE
Theme_Keyword: Filled DEM
Theme_Keyword: Digital Elevation Model
Theme_Keyword: Hydrologic Derivative
Place:
Place_Keyword_Thesaurus:
U.S. Department of Commerce, 1995, Countries, dependencies, areas of special sovereignty, and their principal administrative divisions, Federal Information Processing Standard 10-4,): Washington, D.C., National Institute of Standards and Technology
Place_Keyword: United States
Place_Keyword: U.S.
Place_Keyword: US
Place:
Place_Keyword_Thesaurus:
U.S. Department of Commerce, 1987, Codes for the identification of the States, the District of Columbia and the outlying areas of the United States, and associated areas (Federal Information Processing Standard 5-2): Washington, D.C., National Institute of Standards and Technology
Temporal:
Temporal_Keyword_Thesaurus: None
Temporal_Keyword: 1999-present
Access_Constraints: None
Use_Constraints:
None. Acknowledgement of the U.S. Geological Survey would be appreciated in products derived from these data.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Susan Greenlee
Contact_Organization: USGS EROS
Contact_Position: Topographic Science Manager
Contact_Address:
Address_Type: mailing and physical address
Address: 47914 252nd Street
Address: USGS EROS
City: Sioux Falls
State_or_Province: SD
Postal_Code: 57198-0001
Country: USA
Contact_Voice_Telephone: 1-605-594-6011
Contact_Facsimile_Telephone: 1-605-594-6529
Contact_Electronic_Mail_Address: sgreenlee@usgs.gov
Hours_of_Service: 0800 - 1600, CT M-F (-6h CST/-5h CDT GMT)
Security_Information:
Security_Classification_System: None
Security_Classification: Unclassified
Security_Handling_Description: None
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.1850

Data_Quality_Information:
Attribute_Accuracy:
Logical_Consistency_Report:
The filled DEM grid was created from the original elevation data by filling all of the depressions, or sinks, in the original DEM.
Completeness_Report:
To create this grid, an algorithm was used to loacted and fill all depressions or sinks where there was no flow from pixel to pixel. During this process, efforts were made to maintain natural sink features.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The horizontal accuracy of the filled DEM grid is based upon the Digital Elevation Model (DEM) extracted for the geographic area produced.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
The vertical accuracy of the filled DEM grid is based upon the Digital Elevation Model (DEM) extracted for the geographic area produced.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 20030101
Title: Elevation Derivatives for National Applications Filled DEM Grid
Edition: Stage 1 Data
Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:
Publication_Place: USGS EROS, Sioux Falls, South Dakota
Publisher: U.S. Geological Survey
Online_Linkage: <http://edna.usgs.gov>
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20000101
Ending_Date: present
Source_Currentness_Reference: publication date
Process_Step:
Process_Description:
The production procedures, instrumentation, hardware and software used in the collection of the Elevation Derivatives for National Applications (EDNA) vary depending on systems used at the contractor or cooperator production sites. Utilizing the Hydrologic Units of the United States (HUCS), EDNA was developed on a Cataloging Unit by Cataloging Unit basis. The HUCS were buffered, National Elevation Data (NED) was extracted and projected into the National Albers projection, the projected and clipped DEM was filled using the standard ArcINFO implementation of Jenson & Domingue (1988). Flow direction and flow accumulation were derived from the filled DEM. Synthetic streamlines were made by thresholding the flow accumulation at 5,000 pixels. Corresponding drainage areas for each reach (catch) in the synthetic streamline covered were derived.
Source_Used_Citation_Abbreviation:
Jenson, S.K. and J.O. Domingue. 1988. Extracting topographic structure from digital elevation data for geographic information system analysis: Photogrammetric Engineering and Remote Sensing, Vol. 54, pp. 1593-1600.
Process_Date: Years 2000 to 2003
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Kristine Verdin, P.E.
Contact_Organization: USGS EROS
Contact_Position: Senior Scientist & Hydrologist
Contact_Address:
Address_Type: mailing and physical address
Address: 47914 252nd St
Address: USGS EROS
City: Sioux Falls
State_or_Province: SD
Postal_Code: 57198-0001
Country: USA
Contact_Voice_Telephone: 1-605-594-6002
Contact_Facsimile_Telephone: 1-605-594-6529
Contact_Electronic_Mail_Address: kverdin@usgs.gov
Hours_of_Service: 0800 - 1600, CT M-F (-6h CST/-5h CDT GMT)
Process_Step:
Process_Description:
The data were extracted from SDE using ednafire6.py (python script). This script uses a predefined raster GRID as mask for extracting the grid data from the RDMS. Occasionally, the EDNA raster data contain some small no data gaps (cells) at Hydrologic Cataloging Unit boundaries. These gaps are filled with data from the National Elevation Dataset. Final output grid was converted to integer.
Process_Date: 2/8/2005
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Bruce Worstell
Contact_Organization: USGS EROS
Contact_Position: Scientist
Contact_Address:
Address_Type: mailing and physical address
Address: 47914 252nd St
Address: USGS EROS
City: Sioux Falls
State_or_Province: SD
Postal_Code: 57198-0001
Country: USA
Contact_Voice_Telephone: 605-594-6047
Contact_Facsimile_Telephone: 605-594-6529
Contact_Electronic_Mail_Address: worstell@usgs.gov
Hours_of_Service: 0800 - 1600, CT M-F (-6h CST/-5h CDT GMT)
Process_Step:
Process_Description: Metadata imported.
Source_Used_Citation_Abbreviation: Z:\Landfire\general_metadata\ak_gen_dem_080307.xml
Process_Date: 20090224
Process_Time: 12520900

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Point_and_Vector_Object_Information:
Raster_Object_Information:
Raster_Object_Type: Pixel
Row_Count: 43751
Column_Count: 58180
Vertical_Count: 1

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Albers Conical Equal Area
Albers_Conical_Equal_Area:
Standard_Parallel: 55.000000
Standard_Parallel: 65.000000
Longitude_of_Central_Meridian: -154.000000
Latitude_of_Projection_Origin: 50.000000
False_Easting: 0.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 30.000000
Ordinate_Resolution: 30.000000
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Resolution: 1.000000
Altitude_Encoding_Method:
Explicit elevation coordinate included with horizontal coordinates

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: dem
Entity_Type_Definition: Elevation
Entity_Type_Definition_Source: Elevation Deriviatives for National Applications (EDNA)
Attribute:
Attribute_Label: ObjectID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Value
Attribute_Definition: Land height to the nearest meter
Attribute_Definition_Source: Elevation Deriviatives for National Applications (EDNA)
Attribute:
Attribute_Label: Count
Attribute_Definition: Number of pixels
Attribute_Definition_Source: Elevation Deriviatives for National Applications (EDNA)

Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Susan Greenlee
Contact_Organization: USGS EROS
Contact_Position: Topographic Science Manager
Contact_Address:
Address_Type: mailing and physical address
Address: 47914 252nd Street
Address: USGS EROS
City: Sioux Falls
State_or_Province: South Dakota
Postal_Code: 57198-0001
Country: USA
Contact_Voice_Telephone: 1-605-594-6011
Contact_Facsimile_Telephone: 1-605-594-6529
Contact_Electronic_Mail_Address: sgreenlee@usgs.gov
Hours_of_Service: 0800 - 1600, CT M-F (-6h CST/-5h CDT GMT)
Resource_Description: Elevation Derivatives for National Applications (EDNA)
Distribution_Liability:
Although all data and software published for EDNA have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials or functioning of the software. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data, software, or related materials.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 44.518
Fees: To Be Determined

Metadata_Reference_Information:
Metadata_Date: 20090224
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Susan Greenlee
Contact_Organization: USGS EROS
Contact_Organization_Primary:
Contact_Organization:
REQUIRED: The organization responsible for the metadata information.
Contact_Person: REQUIRED: The person responsible for the metadata information.
Contact_Position: Topographic Science Manager
Contact_Address:
Address_Type: mailing and physical address
Address: 47914 252nd Street
Address: USGS EROS
City: Sioux Falls
State_or_Province: South Dakota
Postal_Code: 57198-0001
Country: USA
Contact_Voice_Telephone: 1-605-594-6011
Contact_Facsimile_Telephone: 1-605-594-6529
Contact_Electronic_Mail_Address: sgreenlee@usgs.gov
Hours_of_Service: 0800 - 1600, CT M-F (-6h CST/-5h CDT GMT)
Contact_Instructions: Prefer E-Mail 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: Unclassified
Metadata_Extensions:
Online_Linkage: <http://edna.usgs.gov>
Profile_Name: ESRI Metadata Profile
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile

Generated by mp version 2.9.6 on Tue Feb 24 14:21:55 2009