Canopy Cover Map Units

Metadata also available as

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: USDA Forest Service, Region 3
Publication_Date: 20170803
Title: Canopy Cover Map Units
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Albuquerque, NM
Publisher: USDA Forest Service, R3
Description:
Abstract:
Existing vegetation (EV) is the floristic composition and vegetation structure occurring at a given location at the current time. This feature set depicts the existing vegetation of the forests and grasslands of the Southwestern Region at the mid-scale as four products - life form, dominance type map units, canopy cover map units, and size map units at the time the source satellite images were acquired. Multi-season satellite images (Landsat-5 and/or Landsat ETM+) along with ancillary and derived data sets (e.g., Digital Elevation Models and spectral indices) were used to model vegetation at the mid-scale level, suitable for presentation at a scale of approximately 1:100,000. The mapping process conformed to national guidelines developed by the Forest Service as defined in the Existing Vegetation Classification and Mapping Technical Guide Version 1.0 (USDA Forest Service Gen. Tech. Report WO-67). A combination of pixel- and object-based classifiers were used to attribute polygons with life form, dominance type, canopy cover class, and size class. Polygons with shared attributes were subsequently aggregated for each product to the map units presented here.
Purpose:
The Southwestern Region existing vegetation mapping program (R3-EVP) is intended to meet the needs of forest plan revisions, national fire planning, and other landscape-level analyses by providing a consistent, region-wide dataset that depicts existing vegetation at the mid-scale level. The R3-EVP is a cooperative effort utilizing staff from both the Geospatial and Ecosystem Analysis and Planning units at the regional office, along with personnel from each forest or grassland. This approach combines specific technical expertise that exists only at the regional office with the local knowledge of ground conditions that exists at the individual forest or grassland. The purpose of this feature class is to depict and label the location boundaries of mid-level vegetation. The feature class will be used to provide vegetation information for landscape-level forest planning and analysis.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20050920
Ending_Date: 20170803
Currentness_Reference: Most current data available within the stated time period.
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -105.940960
East_Bounding_Coordinate: -104.358153
North_Bounding_Coordinate: 33.956520
South_Bounding_Coordinate: 31.809925
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: existing vegetation
Theme_Keyword: canopy cover
Theme_Keyword: midscale
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Lincoln National Forest
Place_Keyword: New Mexico
Access_Constraints: None
Use_Constraints:
Comparison with other data sets for the same area from other time periods may be inaccurate due to inconsistencies resulting from changes in photointerpretation, rounding of decimal coordinates during conversion, and mapping conventions over time. Any hardcopies utilizing these data sets shall clearly indicate their source. If the user has modified the data in any way, they are obligated to describe the types of modifications they have performed on the hardcopy map. The user specifically agrees not to misrepresent these data sets, nor to imply that changes made were approved by the USFS.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USDA Forest Service, Southwest Region
Contact_Position: Remote Sensing Coordinator
Contact_Address:
Address_Type: mailing and physical
Address: 333 Broadway SE
City: Albuquerque
State_or_Province: New Mexico
Postal_Code: 87102
Country: US
Contact_Voice_Telephone: 505-842-3292
Native_Data_Set_Environment:
Microsoft Windows Server 2008 R2 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.3.1.4959

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: Unknown.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The primary data sources used to produce these maps were Landsat satellite images that were terrain-corrected, in reference to 1:24,000 USGS quadrangle maps, by the USGS EROS Data Center. Horizontal accuracy standards for these images were less than one pixel (30 m) RMS.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator:
U.S. Geological Survey, EROS (Earth Resources Observation and Science) Data Center
Publication_Date: unknown
Title:
MRLC (Multi-Resolution Land Characteristics) Landsat satellite images
Geospatial_Data_Presentation_Form: Remote sensing image.
Publication_Information:
Publication_Place: Sioux Falls, South Dakota
Publisher: EROS Data Center
Source_Scale_Denominator: 0
Type_of_Source_Media: hardDisk
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20050920
Ending_Date: 20060916
Source_Currentness_Reference: Most current data available within the stated time period.
Source_Citation_Abbreviation: Unknown
Source_Contribution:
Remotely-sensed images used as the primary data source to produce mid-scale vegetation maps.
Process_Step:
Process_Description:
All Landsat scenes were acquired from the USGS EROS Data Center as geometrically and terrain-corrected images, and were subsequently corrected to at-satellite reflectance by Region 3 personnel. Digital Elevation Models (DEMs) accompanied the satellite images on the MRLC CDs. In addition to the original, multi-spectral and elevation data, derived data layers such as: NDVI; MSAV; Kauth-Thomas brightness, greenness, and wetness indices; and slope/aspect classes were calculated for use in the classifications. Additional biophysical data layers such as soils, temperature, and precipitation were also used. Definiens eCognition software (Definiens Imaging, 2003) was used to segment the Landsat data into polygons that had relatively homogeneous spectral characteristics. A combination of pixel- and object-based classifiers including Erdas Imagine, Definiens eCognition, and See5 were used to attribute polygons with life form, dominance type, canopy cover class, and size class. Polygons with shared attributes were subsequently aggregated for each product. Map units were created based on ecological similarity and accuracy assessment results. The reference data used for training in this project consisted of field sampled data, data from aerial photo interpretation, and legacy data collected by forest and grassland personnel. Mapping was done across all ownership types within the forest proclamation boundary as well as Guadalupe Mountains and Carlsbad Caverns National Parks and the Fort Stanton Area of Critical Environmental Concern.
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Forest Service, Southwest Regional Office
Contact_Position: Remote Sensing Unit
Contact_Address:
Address_Type: mailing and physical
Address: 333 Broadway SE
City: Albuquerque
State_or_Province: NM
Postal_Code: 87102
Country: US
Contact_Voice_Telephone: 505-842-3292
Hours_of_Service: 0800-1630 M-F, Mountain Time

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 6

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: NAD 1983 UTM Zone 13N
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -105.0
Latitude_of_Projection_Origin: 0.0
False_Easting: 500000.0
False_Northing: 0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000125
Ordinate_Resolution: 0.000125
Planar_Distance_Units: meter
Geodetic_Model:
Horizontal_Datum_Name: D North American 1983
Ellipsoid_Name: GRS 1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: S_R03_LIN.Canopy_Cover_Map_Units
Entity_Type_Definition: Feature data set representing mid-level vegetation
Entity_Type_Definition_Source: None
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: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: CC_MU_code
Attribute_Definition: Abbreviation for description
Attribute_Domain_Values:
Unrepresentable_Domain: text
Attribute:
Attribute_Label: CC_MU_desc
Attribute_Definition:
Canopy cover map unit of trees for tree life form polygons or shrubs for shrub life form polygons, otherwise just life form.
Attribute_Domain_Values:
Unrepresentable_Domain: text
Attribute:
Attribute_Label: Acres
Attribute_Definition: Area in acres of polygon
Attribute_Domain_Values:
Unrepresentable_Domain: numbers, acres
Attribute:
Attribute_Label: RuleID
Attribute:
Attribute_Label: GLOBALID
Attribute:
Attribute_Label: RuleID_1
Attribute:
Attribute_Label: SHAPE.AREA
Attribute:
Attribute_Label: SHAPE.LEN

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USDA Forest Service, Lincoln National Forest
Contact_Position: GIS Coordinator
Contact_Address:
Address_Type: mailing and physical
Address: 3463 Las Palomas Rd.
City: Alamogordo
State_or_Province: New Mexico
Postal_Code: 88310
Country: US
Contact_Voice_Telephone: 575-434-7200
Contact_Facsimile_Telephone: 575-434-7218
Hours_of_Service: 0800-1630 Monday - Friday
Resource_Description:
Mid-Scale Existing Vegetation canopy cover on the Lincoln National Forest.
Distribution_Liability:
The USDA Forest Service manages these data for planning purposes, not necessarily for actual on the ground implementation. The USFS is in no way condoning or endorsing the actual on the ground implementation of these data. It is the sole responsibility of the user to determine whether or not the data are suitable for the intended purpose. It is also the obligation of the user to apply these data in an appropriate and conscientious manner. The USFS provides no warranty, nor accepts any liability occurring from the use of these data.

Metadata_Reference_Information:
Metadata_Date: 20170803
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USDA Forest Service, Southwestern Region
Contact_Person: Remote Sensing
Contact_Position: Regional Remote Sensing Coordinator
Contact_Address:
Address_Type: mailing and physical
Address: 333 Broadway SE
City: Albuquerque
State_or_Province: NM
Postal_Code: 87102
Country: US
Contact_Voice_Telephone: 505-842-3292
Hours_of_Service: 0800-1630 M-F, Mountain Time
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time

Generated by mp version 2.9.12 on Fri Aug 04 09:12:36 2017