Name: CZU Road and Trail Corridor Tree Assessment
Display Field: OBJECTID
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: This polygon shapefile contains the outlines of tree canopies derived from a LiDAR Digital Surface Model collected (March, 2021). The canopy perimeters in this dataset are trees within 75 feet from a road or trail with low vigor on steep hillslopes and are greater than 18 feet tall. This feature class contains multiple vegetation vigor indexes derived from four-band imagery, height of the tree, and the slope on which the tree is located. The purpose of this feature class is to highlight areas where low-vigor trees could impact trails and roads. This feature class contains 9 attributes: dsmheight, treeht, band4, MGRVI, NDVI, TGI, aspect, slope, and tree_rank. The dsmheight attribute is the highest point of the tree (ft) with terrain added. The treeht attribute is the highest point of the tree (ft) with terrain removed. This attribute was used to rank potential tree impact. The band4 attribute is the average Triangulated Near-Infrared Index with values that range between 1 to 100 with 100 being the highest potential vigor. The MGRVI attribute is the average Modified Green Ratio Vegetation Index with values that range between 1 and 100 with 100 being the highest potential vigor. The NDVI attribute is the average Normalized Difference Vegetation Index with values that range between 1 and 100 with 100 being the highest vigor. The TGI attribute is the average Triangulated Greenness Index with values that range between 1 and 100 with 100 being the highest potential vigor. The aspect attribute is the dominant aspect in degrees that the tree is on. The slope attribute is the average slope (%) that the tree is on. The tree_rank attribute is potential impact ranking with values ranging between 1 and 100 with 100 being the highest rank.
Copyright Text: SolSpec
John Norman
Min. Scale: 0
Max. Scale: 0
Default Visibility: true
Max Record Count: 2000
Supported query Formats: JSON, geoJSON, PBF
Use Standardized Queries: True
Extent:
XMin: -13619921.0017351
YMin: 4434690.98983111
XMax: -13585980.5737942
YMax: 4471160.00998313
Spatial Reference: 102100 (3857)
Drawing Info:
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HasZ: false
HasM: false
Has Attachments: false
Has Geometry Properties: true
HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText
Object ID Field: FID
Unique ID Field:
IsSystemMaintained : True
Global ID Field:
Type ID Field:
Fields:
- FID (type: esriFieldTypeOID, alias: FID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
- OBJECTID (type: esriFieldTypeInteger, alias: OBJECTID, SQL Type: sqlTypeOther, nullable: true, editable: true)
- Id (type: esriFieldTypeInteger, alias: Id, SQL Type: sqlTypeOther, nullable: true, editable: true)
- gridcode (type: esriFieldTypeInteger, alias: gridcode, SQL Type: sqlTypeOther, nullable: true, editable: true)
- dsmheight (type: esriFieldTypeDouble, alias: dsmheight, SQL Type: sqlTypeOther, nullable: true, editable: true)
- treeht (type: esriFieldTypeDouble, alias: treeht, SQL Type: sqlTypeOther, nullable: true, editable: true)
- band4 (type: esriFieldTypeDouble, alias: band4, SQL Type: sqlTypeOther, nullable: true, editable: true)
- MGRVI (type: esriFieldTypeDouble, alias: MGRVI, SQL Type: sqlTypeOther, nullable: true, editable: true)
- NDVI (type: esriFieldTypeDouble, alias: NDVI, SQL Type: sqlTypeOther, nullable: true, editable: true)
- TGI (type: esriFieldTypeDouble, alias: TGI, SQL Type: sqlTypeOther, nullable: true, editable: true)
- aspect (type: esriFieldTypeInteger, alias: aspect, SQL Type: sqlTypeOther, nullable: true, editable: true)
- slope (type: esriFieldTypeDouble, alias: slope, SQL Type: sqlTypeOther, nullable: true, editable: true)
- Shape_Leng (type: esriFieldTypeDouble, alias: Shape_Leng, SQL Type: sqlTypeOther, nullable: true, editable: true)
- tree_rank (type: esriFieldTypeDouble, alias: tree_rank, SQL Type: sqlTypeOther, nullable: true, editable: true)
- Shape__Area (type: esriFieldTypeDouble, alias: Shape__Area, SQL Type: sqlTypeDouble, nullable: true, editable: false)
- Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)
Templates:
Name: tree_vigor_assessment
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:
Is Data Versioned: false
Has Contingent Values: false
Supports Rollback On Failure Parameter: true
Last Edit Date: 12/20/2021 11:26:25 PM
Schema Last Edit Date: 12/20/2021 11:26:25 PM
Data Last Edit Date: 12/20/2021 11:26:25 PM
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