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nv_gap_mzones

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:

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

Publication_Date: 20050308

Title: nv_gap_mzones

Edition: version 1.0

Geospatial_Data_Presentation_Form: vector digital data

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

Larger_Work_Citation:

Citation_Information:

Originator: USGS/GAP/BRD

Publication_Date: 2000

Title:

GAP Analysis Bulletin No. 9, December 2000. "The Development of Mapping Zones to Assist in Land Cover Mapping Over Large Geographic Areas: A Case Study of the Southwest ReGAP Project"

Publication_Information:

Publication_Place:: USGS/BRD/Gap Analysis Program, 530 S. Asbury St., Suite 1, Moscow, ID 83843
Publisher:: US Geological Survey, Biological Resources Division, Restton, VA 20192

Description:

Abstract:: As a coordinated multi-institution endeavor each state institution was responsible for various tasks which were divided geographically. The five-state region was divided into ecologically and spectrally similar mapping zones. Each mapping zone provided a functional working area for project management, data collection and modeling. Each state was responsible for the mapping zones roughly corresponding to their state jurisdiction.
Purpose:: This dataset contains 24 mapping zones created for the five-state. These were used for land cover modeling and validation.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2004

Currentness_Reference: publication date

Status:

Progress: complete
Maintenance_and_Update_Frequency: none planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -120.978699
East_Bounding_Coordinate: -111.232973
North_Bounding_Coordinate: 43.107206
South_Bounding_Coordinate: 33.999441

Keywords:

Theme:

Theme_Keyword_Thesaurus: none
Theme_Keyword: landcover
Theme_Keyword: mapping zones
Theme_Keyword: large mapping zones

Place:

Place_Keyword_Thesaurus: none
Place_Keyword: Southwest U.S.
Place_Keyword: Arizona
Place_Keyword: Colorado
Place_Keyword: New Mexico
Place_Keyword: Nevada
Place_Keyword: Utah

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:

Gerals Manis, Collin Homer, R. Douglas Ramsey, John Lowry, Todd Sajwaj, Scott Graves

Native_Data_Set_Environment:

Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 8.2.0.700

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report: Attributes are correct as indicated in attribute descriptions.

Logical_Consistency_Report: All polygons have an attribute label.

Completeness_Report: All polygons have an attribute label

Lineage:

Source_Information:

Source_Scale_Denominator: 500000
Type_of_Source_Media: screen digitized
Source_Contribution:: TM Imagery, resampled to 90 meters was used as backdrop for screen digitizing.

Process_Step:

Process_Description:

Initial research into the ecological, climatic and physiographic characteristics of the region focused on ecoregions defined by Bailey et al. (1994) and Omernik (1987). Bailey's provinces provided an initial "starting point" for delineating the project mapping zone boundaries, which were refined by screen digitizing at a scale of approximately 1: 500,000 using a regional mosaic of Thematic Mapper imagery resampled to 90 meters. Initial mapping zone boundaries were delineated by one person with the first map containing 73 mapping zones for the region. Through a process of iterative and collaborative steps involving all five participating land cover teams the mapping zone map was reduced to 25 mapping zones for the region. A more detailed explanation of mapping zone development is found in Manis et al. (2000).

Bailey, R. G., P. E. Avers, T. King, W. H. McNab. (1994). Ecoregions and subregions of the United States (1:7,500,000 map). With supplementary table of map unit descriptions, compiled and edited by W.H. McNab and R. G. Bailey. USDA Forest Service, Washington D.C..

Omernick, J. M. (1987). Ecoregions of the conterminous United States. Map (scale 1:7,500,000). Annals of the Association of American Geographers 77(1):118-125.

Manis, G., C. Homer, R. D. Ramsey, J. Lowry, T. Sajway & S. Graves. (2000). The development of mapping zones to assist in land cover mapping over large geographic areas: A case study of the Soutwest ReGAP project. GAP Analysis Bulletin No. 9. USGS.

Process_Date: 2003

Process_Step:

Process_Description: Metadata imported.
Source_Used_Citation_Abbreviation: C:\WINDOWS\tmp\xml189.tmp

Process_Step:

Process_Description: Metadata imported.
Source_Used_Citation_Abbreviation: D:\NevadaDataBrowser\ecoregion_bnd\gap_mzones\metadata.xml

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 19

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Label point
Point_and_Vector_Object_Count: 19

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 19

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 4

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: Albers Conical Equal Area

Albers_Conical_Equal_Area:

Standard_Parallel: 29.500000
Standard_Parallel: 45.500000
Longitude_of_Central_Meridian: -96.000000
Latitude_of_Projection_Origin: 23.000000
False_Easting: 0.000000
False_Northing: 0.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.002048
Ordinate_Resolution: 0.002048

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

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: nv_gap_mzones

Attribute:

Attribute_Label: FID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI