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Service Description: Davey Resource Group utilized an object-based image analysis (OBIA) semi-automated feature extraction method to process and analyze current high-resolution color infrared (CIR) aerial imagery and remotely-sensed data to identify tree canopy cover and land cover classifications. The use of imagery analysis is cost-effective and provides a highly accurate approach to assessing your community's existing tree canopy coverage. This supports responsible tree management, facilitates community forestry goal-setting, and improves urban resource planning for healthier and more sustainable urban environments. Advanced image analysis methods were used to classify, or separate, the land cover layers from the overall imagery. The semi-automated extraction process was completed using Feature Analyst, an extension of ArcGIS®. Feature Analyst uses an object-oriented approach to cluster together objects with similar spectral (i.e., color) and spatial/contextual (e.g., texture, size, shape, pattern, and spatial association) characteristics. The land cover results of the extraction process was post-processed and clipped to each project boundary prior to the manual editing process in order to create smaller, manageable, and more efficient file sizes. Secondary source data, high-resolution aerial imagery provided by each UTC city, and custom ArcGIS® tools were used to aid in the final manual editing, quality checking, and quality assurance processes (QA/QC). The manual QA/QC process was implemented to identify, define, and correct any misclassifications or omission errors in the final land cover layer.
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Has Versioned Data: false
MaxRecordCount: 2000
Supported Query Formats: JSON
Supports Query Data Elements: true
Layers:
Description:
Service Item Id: 781053b8b9264f7d8535a49c8bf42d3c
Copyright Text: Nevada Division of Forestry, Davey Resource Group
Spatial Reference:
102100
(3857)
Initial Extent:
XMin: -1.3340297624387136E7
YMin: 4734217.356872364
XMax: -1.3317336346312864E7
YMax: 4753054.048927636
Spatial Reference: 102100
(3857)
Full Extent:
XMin: -1.33383991285E7
YMin: 4734233.595399998
XMax: -1.33192348422E7
YMax: 4753037.810400002
Spatial Reference: 102100
(3857)
Units: esriMeters
Document Info:
Title: Map
Author:
Comments:
Subject:
Category:
Keywords: data
AntialiasingMode: null
TextAntialiasingMode: null
Enable Z Defaults: false
Supports ApplyEdits With Global Ids: true
Support True Curves : true
Only Allow TrueCurve Updates By TrueCurveClients : true
Supports Return Service Edits Option : true
Supports Dynamic Layers: false
Child Resources:
Info
Query Data Elements
Relationships
Supported Operations:
Query
Query Contingent Values
QueryDomains
Extract Changes