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nvcp/Arches_NP (MapServer)

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Service Description: This polygon feature class represents vegetation communities mapped at Arches National Park to an alliance or association level, depending on the photo signature. The polygons were generated using guidelines set by the Standardized National Vegetation Classification System (October 1995). Original lines were drawn on mylar overlays using the DOQs collected in June of 2002. Hard copy 9x9 photography was used for photo interpretation. Traditional image interpretation cues were used to develop the polygons, such as shape, size, pattern, tone, texture, color, and shadow. Additional data layers were used in aiding the interpretation, such as slope, hydrology, soils, geography, and ground-collected vegetation information. The minimum mapping unit was 1/2 hectare. The lines developed in the image interpretation step were scanned using a large format scanner. The resultant scanned image was converted into line work for use within ArcGIS. The line work was cleaned, polygons created and attributed. The attributed vegetation classes were subjected to an accuracy assessment, following which final adjustments were made to the vegetation classes. As with any digital layer, this layer is a representation of what is actually occurring on the ground. Errors are inherent in any interpretation of ground qualities. Due to the "snapshot" nature of the DOQs, this vegetation layer reflects conditions that existed when the imagery was collected. Please visit to download the data.

Map Name: Arches_National_Park_UT


All Layers and Tables

Layers: Description:

Copyright Text: Northern Colorado Plateau Network, Inventory and Monitoring Program

Spatial Reference: 102113  (3785)

Single Fused Map Cache: false

Initial Extent: Full Extent: Units: esriMeters


Document Info: Supports Dynamic Layers: false

MaxRecordCount: 1000

MaxImageHeight: 2048

MaxImageWidth: 2048

Supported Query Formats: JSON, AMF

Min Scale: 0

Max Scale: 0

Child Resources:   Info

Supported Operations:   Export Map   Identify   Find   Return Updates   Generate KML