LANDFIRE.HI_ASP

Metadata also available as

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey (USGS), EROS Data Center
Publication_Date: 1999
Title: LANDFIRE.HI_ASP
Edition: 1
Geospatial_Data_Presentation_Form: SDE raster digital data
Publication_Information:
Publication_Place: Sioux Falls, SD
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 raster dataset represents aspect in units of degrees ranging 0 to 359 (0 being north) and a value of -1 represents flat areas where aspect is undefined.
Aspect computed using the ArcGIS Spatial Analyst Aspect tool, processes raster elevation data using a 3x3 neighbor window. The resulting aspect is computed as "grid north" where the upper middle cell of the 3x3 window is considered as north. To address this issue, an analysis was performed to create a deviation grid for the area covered by the elevation dataset. This deviation grid was used to adjust the output from the aspect tool and create a new aspect grid that correctly represents true north. The corrected aspect dataset was derived from source elevation data with floating point precision. Users of the associated LandFire DEM dataset (integer precision) may notice that the aspect derived from that dataset differs from this dataset. This difference of aspect is due to the differences in vertical precision of the source elevation and also because the values have been adjusted to account for the Albers projection.
The Landfire project has specific requirements that mandate that this dataset contain data values rounded to the nearest integer for all the cells designated in the mask that was provided. However, there are cells in the masked region for which there is no elevation data available. These cells were coded with a value of -9999 to designate that no data was available.
Purpose:
This aspect dataset was prepared specifically for the LandFire project.
Supplemental_Information:
Spatial-specific information not available
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: February, 2008
Currentness_Reference: publication date
Status:
Progress: In work
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate:-160.47454578543605
East_Bounding_Coordinate:-153.3681839910366
North_Bounding_Coordinate:25.17246703156623
South_Bounding_Coordinate:18.112857617393107
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD Parameter Keywords
Theme_Keyword: EARTH SCIENCE
Theme_Keyword: LAND SURFACE
Theme_Keyword: TOPOGRAPHY
Theme_Keyword: LANDFORMS
Theme_Keyword: TERRAIN ELEVATION
Theme_Keyword: 2-ARC-SECOND DEM
Theme_Keyword: CARTOGRAPHY
Theme_Keyword: DEM
Theme_Keyword: DIGITAL ELEVATION MODEL
Theme_Keyword: DIGITAL MAPPING
Theme_Keyword: EDC
Theme_Keyword: EROS
Theme_Keyword: GEODATA
Theme_Keyword: GIS
Theme_Keyword: MAPPING
Theme_Keyword: RASTER
Theme_Keyword: USGS
Place:
Place_Keyword_Thesaurus: GCMD Location Keywords
Place_Keyword: NORTH AMERICA
Place_Keyword: UNITED STATES
Place_Keyword: UNITED STATES OF AMERICA
Place_Keyword: Hawaii
Access_Constraints: None
Use_Constraints:
None. Acknowledgement of the originating agencies would be appreciated in products derived from these data.
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.1850

Data_Quality_Information:
Lineage:
Process_Step:
Process_Description:
Aspect values were computed using the ArcGIS Spatial Analyst Aspect tool. Aspect values were also adjusted to correct for the Albers projection. The source elevation data was in floating point and the resulting aspect values rounded to the nearest integer in units of degrees. Areas within the zone mask for which no elevation data is available are coded with a value of -9999.
Process_Date: May 21, 2008
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Bruce Worstell
Contact_Organization:
SGT Contractor to the USGS National Center for Earth Resources Observation and Science
Contact_Voice_Telephone: 605-594-6047
Contact_Facsimile_Telephone: 605-594-6529
Contact_Electronic_Mail_Address: worstell@usgs.gov
Process_Step:
Process_Description: Metadata imported.
Source_Used_Citation_Abbreviation:
Y:\Landfire\data_products\general_metadata\hi_gen_asp_090409.xml
Process_Date: 20090909
Process_Time: 15255800

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Pixel
Row_Count: 12534
Column_Count: 19437
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: 8.000000
Standard_Parallel: 18.000000
Longitude_of_Central_Meridian: -157.000000
Latitude_of_Projection_Origin: 3.000000
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: z70_asp.vat
Attribute:
Attribute_Label: Rowid
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:
Attribute_Label: COUNT

Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Customer Services Representative
Contact_Organization: EROS Data Center
Contact_Address:
Address_Type: mailing and physical address
Address: U.S. Geological Survey EROS Data Center
City: Sioux Falls
State_or_Province: SD
Postal_Code: 57198
Country: USA
Contact_Voice_Telephone: 605-594-6151
Contact_Facsimile_Telephone: 605-594-6589
Contact_Electronic_Mail_Address: custserv@edcmail.cr.usgs.gov
Resource_Description: National Elevation Dataset (NED)
Distribution_Liability:
Although these data have been processed successfully on a computersystem at the U.S. Geological Survey, EROS Data Center, no warrantyexpressed or implied is made by either regarding the utility of thedata on any system, nor shall the act of distribution constitute anysuch warranty. The USGS will warrant the delivery of this product incomputer-readable format and will offer appropriate adjustment ofcredit when the product is determined unreadable by correctly adjustedcomputer peripherals, or when the physical medium is delivered indamaged condition. Requests for adjustments of credit must be madewithin 90 days from the date of this shipment from the ordering site.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 246.831

Metadata_Reference_Information:
Metadata_Date: 20090909
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Bruce Worstell
Contact_Organization:
SGT Contractor to the USGS National Center for Earth Resources Observation and Science
Contact_Address:
Address_Type: mailing and physical address
Address: U.S. Geological Survey EROS Data Center
City: Sioux Falls
State_or_Province: SD
Postal_Code: 57198
Country: USA
Contact_Voice_Telephone: 605-594-6047
Contact_Facsimile_Telephone: 605-594-6529
Contact_Electronic_Mail_Address: worstell@usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile

Generated by mp version 2.9.6 on Mon Sep 14 10:24:50 2009