Idaho/Western Wyoming Landcover Classification

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator:

Collin G. Homer, Dept. of Geography and Earth Resources, Utah State University Logan, Utah 84322

Publication_Date: 1998

Title: Idaho/Western Wyoming Landcover Classification

Geospatial_Data_Presentation_Form: raster digital data

Online_Linkage: <http://earth.gis.usu.edu/>

Description:

Purpose:

The digital landcover dataset may be used for various purposes with user's discretion. Specifically, this dataset was created for regional terrestrial biodiversity assessment. These data are not intended to be used at scales larger than 1:100,000.

Abstract:

The goal for the Southern Idaho and Western Wyoming vegetation land characterization was to produce a flexible, state wide database meeting the requirements of the GAP program, as well as state and federal land management purposes. It was determined that nine mapping zones would optimize this mapping effort. Mapping zone boundaries were interpreted with on-screen digitizing over the Thematic Mapper (TM) mosaic. Each mapping zone was defined with a .5 kilometer buffer to facilitate edgematching with adjacent mapping zones. TM bands 2-7 and an elevation contour band at 100 foot intervals were used as the source for all mapping zone unsupervised classifications. A maximum likelihood classification algorithm was used in each mapping zone to assign individual pixels to a spectral class. Data recorded at each training site included UTM coordinates determined from a global positioning system (GPS) receiver, vegetation composition, percent cover, soil type, topography, and a qualitative site physical and location description to assist in the location of each site on TM imagery.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1992

Ending_Date: 1995

Currentness_Reference: ground condition

Status:

Progress: complete

Maintenance_and_Update_Frequency: none planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -117

East_Bounding_Coordinate: -109

North_Bounding_Coordinate: 45

South_Bounding_Coordinate: 41

Keywords:

Theme:

Theme_Keyword_Thesaurus: none

Theme_Keyword: landcover

Theme_Keyword: vegetation cover

Theme_Keyword: GAP

Place:

Place_Keyword_Thesaurus: none

Place_Keyword: Western U.S.

Place_Keyword: Idaho

Place_Keyword: Wyoming

Access_Constraints: none

Use_Constraints:

Appropriate scale for these data is 1: 100,000 smaller. The user assumes responsiblity when using this dataset.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

Remote Sensing/GIS Laboratory, College of Natural Resources, Utah State University

Contact_Person: Director or Assistant Director

Contact_Address:

Address_Type: mailing

Address: UMC 5275

City: Logan

State_or_Province: Utah

Postal_Code: 84322-5275

Country: USA

Contact_Voice_Telephone: 435-797-2385

Data_Set_Credit:

Principle Investigator: Thomas Edwards Jr. Co-Principal Investigator: Collin G. Homer

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Data used to support TM vegetation cover-type modeling included digital elevation data at both 30 meter (1-arc second) and (3-arc second DTED) resolution output to elevation, slope and aspect files, hydrology from USGS 1:100,000 dlg files (including streams and water bodies) and generated from 30 meter pixel DEM's, land use including agriculture and urban areas, and cover-type location polygons generated from literature descriptions, field experience and various localized articles and maps throughout the state.

Logical_Consistency_Report: Not applicable for raster data

Completeness_Report:

All cells within this image have been attributed with a field called class_name. See Process_Description for more details.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Eros Data Center

Publication_Date: unkown

Title: 30 meter digital elevation model

Geospatial_Data_Presentation_Form: raster digital data

Type_of_Source_Media: digital

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: unknown

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: U.S.G.S Eros Data Center

Source_Contribution:

Digital elevation dataset was used to derive topographic ancillary datasets: elevation, slope and aspect.

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S.G.S. Eros Data Center

Publication_Date: 1992-1995

Title: Landsat 5 Thematic Mapper Imagery

Geospatial_Data_Presentation_Form: raster digital data

Type_of_Source_Media: digital

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1992

Ending_Date: 1995

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: U.S.G.S.

Source_Contribution: Landsat scenes used for spectral modelling of land cover.

Process_Step:

Process_Date: 1998

Process_Description:

1) Multiple Landsat 5 TM scenes covered the study area. 2) Landsat scenes were standardized via histogram adjustment and mosaicked. 3) Nine major ecoregions were used to avoid mixing of cover-types with high probablity of spectral signature confusion. 4) Digital classification was peformed on each ecoregion separately. Classification involved: a) Unsupervised spectral clusters using ISODATA algoritm. 100 clusters were used intially to segment the image mosaic, and resulting cluster image was evaluated by examing the average standard deviation for each signature, providing a measure of variablity for the signature. Additional ISODATA cluster images were created using incremtal increases of 25 clusters until a "point of diminishing returns" was reached based on the average standard deviation (variablity) for each signature. 5) Training data obtained from ground data collection and air photo interpretation. Cover-type legend was delineation was base on an attempt to match existing maps in Utah, Nevada and Montana. 6) Modeling was performed on each ecoregion separately and involved two phases: first, statistical association of spectral clusters with cover-type classes, and second, ecological modeling based on ancillary, DEM derived datasets.

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: raster

Raster_Object_Information:

Raster_Object_Type: pixel

Row_Count: 26481

Column_Count: 18369

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 12

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.9996

Longitude_of_Central_Meridian: -117

Latitude_of_Projection_Origin: 0.0

False_Easting: 500000

False_Northing: 0.0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: row and column

Coordinate_Representation:

Abscissa_Resolution: 30

Ordinate_Resolution: 30

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137

Denominator_of_Flattening_Ratio: 298.257

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Detail_Citation:

See: Homer, C.G., "Idaho/Western Wyoming Landcover Classification: Report & Metadata"

Entity_and_Attribute_Overview:

The following fields are present in the Idaho/Western Wyoming landcover dataset:

Complete descriptions of each landcover class are available in the document: Homer, C.G., Idaho/Western Wyoming Landcover Classification Report and Metadata. Unpublished Document.

CLASS_NAMES: Cover types mapped include:

Alpine Fir 1, Alpine Fir 2, Alpine Fir 3, Alpine Fir/Doug Fir 1, Alpine Fir/Doug Fir 2, Alpine Fir/Doug Fir 3, Alpine Fir/Lodgepole 1, Alpine Fir/Lodgepole 2, Alpine Fir/Lodgepole 3, Alpine Fir/Spruce 1, Alpine Fir/Spruce 2, Alpine Fir/Spruce 3, Alpine Fir/Whitebark 1, Alpine Fir/Whitebark 2, Alpine Fir/Whitebark 3, Doug Fir 1, Doug Fir 2, Doug Fir 3, Doug Fir/Grand Fir 1, Doug Fir/Grand Fir 2, Doug Fir/Grand Fir 3, Doug Fir/Lodgepole Pine 1, Doug Fir/Lodgepole Pine 2, Doug Fir/Lodgepole Pine 3, Doug Fir/Ponderosa Pine 1, Doug Fir/Ponderosa Pine 2, Doug Fir/Ponderosa Pine 3, Grand Fir 1, Grand Fir 2, Grand Fir 3, Juniper-Utah 1, Juniper-Utah 2, Juniper-Utah 3, Juniper-Western 1, Juniper-Western 2, Juniper-Western 3, Lodgepole 1, Lodgepole 2, Lodgepole 3, Lodgepole Sapling, Ponderosa Pine 1, Ponderosa Pine 2, Ponderosa Pine 3, Ponderosa Pine Sapling, Spruce 1, Spruce 2, Spruce 3, Whitebark/Limber Pine 1, Whitebark/Limber Pine 2, Whitebark/Limber Pine 3, Doug Fir/Limber 1, Doug Fir/Limber 2, Juniper/Pinyon 1, Juniper/Pinyon 2, Aspen 1, Aspen 2, Aspen 3, Aspen/Conifer 1, Aspen/Conifer 2, Aspen/Confier 3, Maple 1, Maple 2, Maple 3, Mountain Mahogany 1, Mountain Mahogany 2, Mountain Mahogany 3, Big Sagebrush, Bitterbrush, Bruns_shrub, Clearcut_shrub, Greasewood, Low Sagebrush, Montane Shrub, Mountain Big Sage, Mountain Low Sage, Rabbit Brush, Salt Desert Scrub, Silver Sage, Alpine Herbaceous, Annual Grass/Forb, Burn_herbaceous, Clearcut_herbaceous, Dry Meadow, Perennial Grass, Perennial Grass Slope, Perennial Grass Montane, Tall Forb Montane, Wet Meadow, Barren, Lava, Lava_Vegetation, Rock, Sand Dune, Sand Dune_Vegetated, Water, Snow, General Riparian, Deciduous Tree Riparian, Riverine Riparian, Herbaceous Riparian, Shrub, Potentilla/Silver Sage Riparian, Mixed Conifer/Water Riparian, Deep Marsh, Shallow Marsh, Aquatic Bed, Mud Flat, Agricultural-Irrigated, Agricultural-Dry, Agricultural-Fallow, Disturbed-High, Disturbed-Low, Urban-High Density, Urban-Low Density,

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Director or Assistant Director

Contact_Organization:

RS/GIS Laboratory, College of Natural Resources, Utah State University,

Contact_Address:

Address_Type: mailing address

Address: UMC 5275, Utah State University

City: Logan

State_or_Province: Utah

Postal_Code: 84322-5275

Country: U.S.A.

Contact_Voice_Telephone: 435-797-2383

Contact_Electronic_Mail_Address: irdiac@gis.usu.edu

Resource_Description: Idaho/Western Wyoming Landcover Classification

Distribution_Liability:

The RS/GIS Laboratory, Utah State University nor any institution responsible for creating this dataset are responsible for the re-distribution, content, or use of these data.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name:

"ERDAS" ERDAS image files (ERDAS Corporation) or ArcInfo GRID format (ESRI)

Format_Version_Number: ERDAS Imagine 8.6 or Workstation ArcInfo 8.0.2

File_Decompression_Technique:

Compression type *.zip or *.tgz. For windows use WinZip. For UNIX use tar -zxf <filename>.tgz

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: <http://earth.gis.usu.edu/>

Fees: none

Metadata_Reference_Information:

Metadata_Date: 200410

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Director or Assistant Director

Contact_Organization: RS/GIS Laboratory, Utah State University

Contact_Address:

Address_Type: mailing

Address: UMC 5275, Utah State University

City: Logan

State_or_Province: Utah

Postal_Code: 84322-5275

Country: U.S.A.

Contact_Voice_Telephone: 435-797-2383

Contact_Electronic_Mail_Address: irdiac@gis.usu.edu

Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Access_Constraints: none

Metadata_Use_Constraints: none

Metadata_Security_Information:

Metadata_Security_Classification_System: none

Metadata_Security_Classification: unclassified

Metadata_Security_Handling_Description: none

Metadata_Language: English