SPRNCA Metadata (Shapefile Format)
DATASET NAME: SP_SPRNCA
Identification_Information:
Citation:
Citation_Information:
Originator: Joseph Watts
Publication_Date: Unpublished material
Title: San Pedro Vegetation Map
Description:
Abstract: This data set is a digital vegetation map of the San Pedro Riparian
National Conservation Area and Babocomari River. The map was produced
by manual interpretation of true-color, stereo aerial photography
flown in November 2000. Standard U.S. Geological Survey Digital
Orthophoto Quadrangles served as the image base for polygon
digitization. The National Vegetation Classification System was
used as the framework for determining the map units. For all
polygons, floristic attributes of physiognomic class and alliance
and structural attributes of dominant life form canopy cover,
total canopy cover, and stand height are recorded. The nominal
minimum mapping unit is one hectare for the floodplain portion of
the study site and four hectares in the upland portion.
Purpose: The long-term purpose of this project is to monitor change in
potential habitat of the endangered southwest willow flycatcher
in the San Pedro Riparian National Conservation Area
and Babocomari River. Vegetation maps will be produced in 2004 and
2008 using the same methodology and will serve as input
into a trend analysis.
Supplemental_Information:
Data_Type: SHAPEFILE
Software: ESRI ArcView 3.2
Operating_System: Windows NT Version 4.0
Path_Name: \SPDB\Shapefiles\sp_sprnca
Reviews_Applied_to_Date:
Related_Spatial_Data_Files: all files with sp prefix
References_Cited:
Notes:
Cloud_Cover: N/A
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20001128
Currentness_Reference:
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Irregular
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: 549137
East_Bounding_Coordinate: 588269
North_Bounding_Coordinate: 3525376
South_Bounding_Coordinate: 3466936
Keywords:
Theme:
Theme_Keyword_Thesaurus: Vegetation
Theme_Keyword: Vegetation Map
Theme_Keyword: National Vegetation Classification System
Theme_Keyword: Canopy Cover
Theme_Keyword: Stand Height
Theme_Keyword: Alliance
Place:
Place_Keyword_Thesaurus: San Pedro
Place_Keyword: San Pedro River
Place_Keyword: Babocomari River
Place_Keyword: San Pedro Riparian National Conservation Area
Place_Keyword: Fort Huachuca
Place_Keyword: Cochise County
Place_Keyword: Arizona
Access_Constraints: None
Use_Constraints: The US Army Topographic Engineering Center assumes no liability
related to the use of this product.
Data_Provider_Information:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: US Army Topographic Engineering Center
Contact_Person: Joseph Watts
Contact_Address:
Address_Type:
Address: CEERD-TR-G
7701 Telegraph Road
City: Alexandria
State_or_Province: VA
Postal_Code: 22315-3864
Contact_Voice_Telephone: 703.428.6802
Contact_Email_Address: watts@tec.army.mil
Data_Processor_Information:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: US Army Topographic Engineering Center
Contact_Person: This map was produced by the following TEC employees: Joseph
Watts, Mark Burnell, Loan Phan, John Wilder, George Newbury,
and Kimberly Nevitt. Technical assistance was provided by Alan
Geralnick, Douglass Caldwell, Brian Graff, Charles Sell, Joni
Jarret, and Glen Frano. James Hessil and Sheridan Stone managed
the project for Fort Huachuca.
Contact_Address:
Address_Type:
Address: CEERD-TR-G
7701 Telegraph Road
City: Alexandria
State_or_Province: VA
Postal_Code: 22315-3864
Contact_Voice_Telephone:
Contact_Voice_Email:
Metadata_Reference_Information:
Metadata_Date: 20011001
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: US Army Topographic Engineering Center
Contact_Person: Joseph Watts
Contact_Address:
Address_Type: mailing and physical address
Address: CEERD-TR-G
7701 Telegraph Road
City: Alexandria
State_or_Province: VA
Postal_Code: 22315-3864
Contact_Voice_Telephone: 703.428.6802
Contact_Facsimile_Telephone: 703.428.6140
Contact_Email_Address: watts@tec.army.mil
Metadata_Standard_Version: FGDC Content Standards for Digital Geospatial Metadata 2001
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: Field verification of this data set occurred in February
and April 2001.
Attribute_Accuracy_Value:
Attribute_Accuracy_Explanation:
Logical_Consistency_Report: This data set was compiled and edited by three
photo analysts. Significant effort was made to
eliminate individual analyst bias. Logical
consistency checks included:
1. land cover and alliance combinations
2. land cover and dominant canopy cover
3. dominant canopy cover and total canopy
cover
4. land cover and stand height
Completeness_Report: The nominal minimum mapping unit for this project
was one hectare for floodplain alliances and four
hectares for upland alliances. The exception to this
rule was open water - all visible water bodies
were mapped. The mapping scheme used is based on
the National Vegetation Classification System
established by the Federal Geographic Data Committee.
Positional_Accuracy:
Horizontal_Positional_Accuracy: USGS Digital Orthophoto Quadrangles (DOQs)
were used as the base imagery for this project.
DOQs comply with national map accuracy standards.
In general, the vegetation alliances depicted in
this data set are not well-defined spatial entities
whose boundaries are directly observable in
the field. Considerable judgment is required
during the photo interpretation process to
delineate polygons.
Vertical_Positional_Accuracy: The only attribute of this data set with a vertical
dimension is stand height. Alliances were attributed
with stand heights based on stereoscopic viewing of
aerial photography. No attempt was made to derive
height information via photogrammetric techniques.
Lineage:
Process_Step:
Process_Description: The compilation stage of this project involved manual
interpretation of stereoscopic aerial photography.
The digitizing and attribution stage of this project
involved heads-up digitizing of the photo overlays.
ArcView 3.2 and custom attribution software were used.
Process_Date:
Process_Time:
Process_Step:
Process_Description: The shapefile was projected from the geographic reference
system to UTM NAD83 projection.
Process_Date:
Process_Time:
SPATIAL REFERENCE INFORMATION
Grid Coordinate System: UTM
Horizontal Datum: NAD83
Zone: 12
Units: METERS
Scale:
Precision: SINGLE
ATTRIBUTE INFORMATION
Detailed_Description:
Entity_Type:
Entity_Type_Label: Polygon
Entity_Type_Definition: Polygon
Entity_Type_Definition_Source: ArcView 3.2
Attribute:
Attribute_Label: PolyID
Attribute_Definition: Sequential number which uniquely identifies polygons
Attribute_Definition_Source: Calculated in ArcView
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 2295
Attribute_Units_of_Measure: None
Attribute_Measurement_Resolution: NA
Beginning_Date_of_Attribute_Values: 20011001
Ending_Date_of_Attribute_Values: 20011001
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy: NA
Attribute_Value_Accuracy_Explanation: Sequential number which uniquely identifies
polygons
Attribute_Measurement_Frequency: As needed
Attribute:
Attribute_Label: Hectares
Attribute_Definition: Area of polygon recorded in hectares
Attribute_Definition_Source: Calculated in ArcView
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.05
Range_Domain_Maximum: 392.75
Attribute_Units_of_Measure: Hectares
Attribute_Measurement_Resolution: hundredth of a hectare
Beginning_Date_of_Attribute_Values: 20011001
Ending_Date_of_Attribute_Values: 20011001
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy: Unquantified
Attribute_Value_Accuracy_Explanation: In general, the vegetation alliances depicted
in this data set are not well-defined spatial
entities whose boundaries are directly
observable in the field. Considerable judgement
is required during the photo interpretation
process to delineate polygons.
Attribute_Measurement_Frequency: As needed
Attribute:
Attribute_Label: Area
Attribute_Definition: Area of polygon recorded in square meters
Attribute_Definition_Source: Calculated in ArcView
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 5005
Range_Domain_Maximum: 3927500
Attribute_Units_of_Measure: Square meters
Attribute_Measurement_Resolution: square meter
Beginning_Date_of_Attribute_Values: 20011001
Ending_Date_of_Attribute_Values: 20011001
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy: Unquantified
Attribute_Value_Accuracy_Explanation: In general, the vegetation alliances depicted
in this data set are not well-defined spatial
entities whose boundaries are directly
observable in the field. Considerable judgement
is required during the photo interpretation
process to delineate polygons.
Attribute_Measurement_Frequency: As needed
Attribute:
Attribute_Label: Perimeter
Attribute_Definition: Perimeter of polygon recorded in meters
Attribute_Definition_Source: Calculated in ArcView
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 99.26
Range_Domain_Maximum: 162825.52
Attribute_Units_of_Measure: Meters
Attribute_Measurement_Resolution: meter
Beginning_Date_of_Attribute_Values: 20011001
Ending_Date_of_Attribute_Values: 20011001
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy: Unquantified
Attribute_Value_Accuracy_Explanation: In general, the vegetation alliances depicted
in this data set are not well-defined spatial
entities whose boundaries are directly
observable in the field. Considerable judgement
is required during the photo interpretation
process to delineate polygons.
Attribute_Measurement_Frequency: As needed
Attribute:
Attribute_Label: Cover
Attribute_Definition: General vegetation type characterized by dominant
life-form. Also known as physiognomic class and
land cover class/type.
Attribute_Definition_Source: National Vegetation Classification System
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Forest
Enumerated_Domain_Value_Definition: trees usually over 5m with canopy cover
of 61 to 100%
Enumerated_Domain_Value_Definition_Source: National Vegetation Classification System
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: woodland
Enumerated_Domain_Value_Definition: open stands of trees over 5m generally
forming canopy cover of 25 to 60%
Enumerated_Domain_Value_Definition_Source: National Vegetation Classification System
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: shrublands
Enumerated_Domain_Value_Definition: shrubs or trees usually 0.5 to 5m generally
forming canopy cover 25%
Enumerated_Domain_Value_Definition_Source: National Vegetation Classification System
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: herbaceous vegetation
Enumerated_Domain_Value_Definition: graminoids/forbs generally forming canopy
cover 10%, woody cover < 10%
Enumerated_Domain_Value_Definition_Source: National Vegetation Classification System
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: sparse vegetation
Enumerated_Domain_Value_Definition: total vegetative cover generally does
not exceed 10%
Enumerated_Domain_Value_Definition_Source: National Vegetation Classification System
Attribute_Units_of_Measure: text field/nominal classes
Attribute_Measurement_Resolution: NA
Beginning_Date_of_Attribute_Values: 20011001
Ending_Date_of_Attribute_Values: 20011001
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy: unquantified
Attribute_Value_Accuracy_Explanation: In general, the vegetation alliances depicted
in this data set are not well-defined spatial
entities whose boundaries are directly
observable in the field. Considerable judgement
is required during the photo interpretation
process to delineate polygons.
Attribute_Measurement_Frequency: As needed
Attribute:
Attribute_Label: Alliance
Attribute_Definition: Specific vegetation type characterized
by dominant or co-dominant species
Attribute_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Cottonwood Forest
Enumerated_Domain_Value_Definition: dominated by cottonwood trees
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: mesquite forests
Enumerated_Domain_Value_Definition: dominated by mesquite trees
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: salt cedar forests
Enumerated_Domain_Value_Definition: dominated by salt cedar trees
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: soapberry forests
Enumerated_Domain_Value_Definition: dominated by soapberry trees
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: willow forest
Enumerated_Domain_Value_Definition: dominated by willow trees
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: cottonwood woodland with grass understory
Enumerated_Domain_Value_Definition: overstory dominated by cottonwood trees;
herbaceous understory
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: cottonwood woodland with open understory
Enumerated_Domain_Value_Definition: overstory dominated by cottonwood trees;
understory open
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: cottonwood woodland with shrub understory
Enumerated_Domain_Value_Definition: overstory dominated by cottonwood trees;
understory dominated by shrubs
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: mesquite woodland with grass understory
Enumerated_Domain_Value_Definition: overstory dominated by mesquite trees;
herbaceous uunderstory
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: mesquite woodland with open understory
Enumerated_Domain_Value_Definition: overstory dominated by mesquite trees;
understory open
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: mesquite woodland with shrub understory
Enumerated_Domain_Value_Definition: overstory dominated by mesquite trees;
understory dominated by shrubs
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: salt cedar woodland with shrub understory
Enumerated_Domain_Value_Definition: overstory dominated by salt cedar trees;
understory dominated by shrubs
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: soapberry woodland with grass understory
Enumerated_Domain_Value_Definition: overstory dominated by soapberry trees;
herbaceous understory
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: willow woodland with grass understory
Enumerated_Domain_Value_Definition: overstory dominated by willow trees;
herbaceous understory
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: bee bush/acacia shrubland
Enumerated_Domain_Value_Definition: co-dominated by bee bush and acacia
(whitethorn and cat's claw) shrubs
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: creosote-tarbush shrubland
Enumerated_Domain_Value_Definition: co-dominated by creosote and tarbush shrubs
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: desert willow-rabbitbrush shrubland
Enumerated_Domain_Value_Definition: co-dominated by desert willow and
rabbitbrush shrubs
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: mesquite shrubland
Enumerated_Domain_Value_Definition: dominated by mesquite shrubs
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: mesquite-sacaton shrubland
Enumerated_Domain_Value_Definition: co-dominated by mesquite shrubs and
sacaton grasses
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: mixed upland shrubs
Enumerated_Domain_Value_Definition: multiple co-dominant shrubs
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: rabbitbrush shrubland
Enumerated_Domain_Value_Definition: dominated by rabbitbrush shrubs
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: salt cedar shrubland
Enumerated_Domain_Value_Definition: dominated by salt cedar shrubs
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: spiny aster shrubland
Enumerated_Domain_Value_Definition: dominated by spinyaster
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: whitethorn shrubland
Enumerated_Domain_Value_Definition: dominated by whitethorn shrubs
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Johnson grass herbaceous vegetation
Enumerated_Domain_Value_Definition: dominated by Johnson grass
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Lehman's lovegrass herbaceous vegetation
Enumerated_Domain_Value_Definition: dominated by Lehman's lovegrass
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: mixed forbs herbaceous vegetation
Enumerated_Domain_Value_Definition: dominated by multiple forb species
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: mixed graminoids herbaceous vegetation
Enumerated_Domain_Value_Definition: dominated by multiple herbaceous species
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: mixed grass-scrub herbaceous vegetation
Enumerated_Domain_Value_Definition: dominated by multiple shrub and grass species
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: sacaton herbaceous vegetation
Enumerated_Domain_Value_Definition: dominated by sacaton grasses
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: sacaton/tobosa herbaceous vegetation
Enumerated_Domain_Value_Definition: dominated by sacaton/tobosa grasses
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: tobosa herbaceous vegetation
Enumerated_Domain_Value_Definition: dominated by tobosa grasses
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: water
Enumerated_Domain_Value_Definition: open water in the form of a river or ponds
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: built-up land
Enumerated_Domain_Value_Definition: significant anthropogenic modification
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: barren
Enumerated_Domain_Value_Definition: devoid of vegetation
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Units_of_Measure: text field/nominal classes
Attribute_Measurement_Resolution: NA
Beginning_Date_of_Attribute_Values: 20011001
Ending_Date_of_Attribute_Values: 20011001
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy: unquantified
Attribute_Value_Accuracy_Explanation: In general, the vegetation alliances depicted
in this data set are not well-defined spatial
entities whose boundaries are directly
observable in the field. Considerable judgement
is required during the photo interpretation
process to delineate polygons.
Attribute_Measurement_Frequency: As needed
Attribute:
Attribute_Label: Domcanopy
Attribute_Definition: canopy cover of plants of the dominant life-form
Attribute_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0-10%
Enumerated_Domain_Value_Definition: canopy cover ranges from 0% to 10%
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 11-25%
Enumerated_Domain_Value_Definition: canopy cover ranges from 11% to 25%
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 26-60%
Enumerated_Domain_Value_Definition: canopy cover ranges from 25% to 60%
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 61-80%
Enumerated_Domain_Value_Definition: canaopy cover ranges from 61% to 80%
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 81-100%
Enumerated_Domain_Value_Definition: canopy cover ranges from 81% to 100%
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Units_of_Measure: text field/nominal classes
Attribute_Measurement_Resolution: NA
Beginning_Date_of_Attribute_Values: 20011001
Ending_Date_of_Attribute_Values: 20011001
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy: unquantified
Attribute_Value_Accuracy_Explanation: In general, the vegetation alliances depicted
in this data set are not well-defined spatial
entities whose boundaries are directly observable
in the field. Considerable judgement is required
to delineate polygons.
Attribute_Measurement_Frequency: As needed
Attribute:
Attribute_Label: Totlcanopy
Attribute_Definition: canopy cover of total vegetative cover
Attribute_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0-10%
Enumerated_Domain_Value_Definition: canopy cover ranges from 0% to 10%
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 11-25%
Enumerated_Domain_Value_Definition: canopy cover ranges from 11% to 25%
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 26-60%
Enumerated_Domain_Value_Definition: canopy cover ranges from 25% to 60%
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 61-80%
Enumerated_Domain_Value_Definition: canopy cover ranges from 61% to 80%
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 81-100%
Enumerated_Domain_Value_Definition: canopy cover ranges from 81% to 100%
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Units_of_Measure: text field/nominal classes
Attribute_Measurement_Resolution: NA
Beginning_Date_of_Attribute_Values: 20011001
Ending_Date_of_Attribute_Values: 20011001
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy: unquantified
Attribute_Value_Accuracy_Explanation: In general, the vegetation alliances depicted
in this data set are not well-defined spatial
entities whose boundaries are directly observable
in the field. Considerable judgement is required
to delineate polygons.
Attribute_Measurement_Frequency: As needed
Attribute:
Attribute_Label: Arscanopy
Attribute_Definition: Canopy cover of cottonwood and mesquite forests and woodlands
Attribute_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 26%
Enumerated_Domain_Value_Definition: canopy cover ranges from 25% to 30%
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 35%
Enumerated_Domain_Value_Definition: canopy cover ranges from 31% to 40%
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 45%
Enumerated_Domain_Value_Definition: canopy cover ranges from 41% to 50%
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 55%
Enumerated_Domain_Value_Definition: canopy cover ranges from 51% to 60%
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 65%
Enumerated_Domain_Value_Definition: canopy cover ranges from 61% to 70%
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 75%
Enumerated_Domain_Value_Definition: canopy cover ranges from 71% to 80%
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 85%
Enumerated_Domain_Value_Definition: canopy cover ranges from 81% to 90%
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 95%
Enumerated_Domain_Value_Definition: canopy cover ranges from 91% to 100%
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Units_of_Measure: text field/nominal classes
Attribute_Measurement_Resolution: NA
Beginning_Date_of_Attribute_Values: 20011001
Ending_Date_of_Attribute_Values: 20011001
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy: unquantified
Attribute_Value_Accuracy_Explanation: In general, the vegetation alliances depicted
in this data set are not well-defined spatial
entities whose boundaries are directly observable
in the field. Considerable judgement is required
to delineate polygons.
Attribute_Measurement_Frequency: As needed
Attribute:
Attribute_Label: Height
Attribute_Definition: Height above ground level in meters of uppermost
well-defined vegetation stratum
Attribute_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0.1-5m
Enumerated_Domain_Value_Definition: height ranges from 0.1m to 5m
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 5.1-10m
Enumerated_Domain_Value_Definition: height ranges from 5.1m to 5m
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: greater than 10m
Enumerated_Domain_Value_Definition: height is greater than 10m
Enumerated_Domain_Value_Definition_Source: photo-interpretation based
Attribute_Units_of_Measure: text field/nominal classes
Attribute_Measurement_Resolution: NA
Beginning_Date_of_Attribute_Values: 20011001
Ending_Date_of_Attribute_Values: 20011001
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy: unquantified
Attribute_Value_Accuracy_Explanation: In general, the vegetation alliances depicted
in this data set are not well-defined spatial
entities whose boundaries are directly observable
in the field. Considerable judgement is required
to delineate polygons.
Attribute_Measurement_Frequency: As needed
Attribute:
Attribute_Label: Remarks
Attribute_Definition: text field for photo analyst comments
Attribute_Definition_Source: photo-interpretation based
Attribute_Domain_Values:
Unrepresentable_Domain: text field
Attribute_Units_of_Measure: text field
Attribute_Measurement_Resolution: NA
Beginning_Date_of_Attribute_Values: 20011001
Ending_Date_of_Attribute_Values: 20011001
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy: NA
Attribute_Value_Accuracy_Explanation: text field
Attribute_Measurement_Frequency: As needed
Overview_Description:
Entity_and_Attribute_Overview: This data set contains five primary attributes.
For all polygons, floristic attributes of
physiognomic class and alliance and structural
attributes of dominant life-form canopy cover,
total canopy cover, and stand height are recorded.
For all mesquite and cottonwood forest and
woodland polygons, a secondary version of dominant
life-form canopy cover was recorded to the
nearest decile midpoint as "Arscover".
Every polygon in the data set also has attributes
of area in hectares, area in square meters,
perimeter, and a polygon identifier. Where
applicable, remarks were recorded as well.
Entity_and_Attribute_Detail_Citation: Unpublished
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