ArcGIS REST Services Directory
JSON

MTRgvc (FeatureServer)

View In:   Map Viewer

Service Description: Map depicts MTR mining sites updated from 2005 data to 2010.

Service ItemId: be4c186b6546484b95a773cc5bbe5030

Has Versioned Data: false

Max Record Count: 1000

Supported query Formats: JSON

Supports applyEdits with GlobalIds: False

Supports Shared Templates: True

All Layers and Tables

Layers:

Description: This map depicts MTR mining sites in the western Appalachian Mountain region. The information was taken from Landsat rasters covering R019 P034 and R019 P033. The MTR coverage calculation is a result of unsupervised reclassification of 2010 Landsat raster image, then reclassification for areas displaying MTR effects. The result was converted to a polygon feature class and systematically erased major rivers within 400m, highways within 400m, roads and minor rivers within 50m each. Then the resulting areas were selected by attribute of being larger than 40 acres. The purpose of this process was to compare the Skytruth MTR data for 2005 to an updated version for 2010. The total acreage reflects MTR tracts that are greater than 40 acres. The sum acreage of this 2010 data is 61,851.34 acres. Examing tracts greater than 40 acres in the 2005 dataset there was a total of 64,552.29 acres affected by MTR. This yields a reduction by 4% or approximately 2,701 acres. This slight decrease may be the result of Mountaintop restoration. Accuracy of the dataset was checked by adding 30 random points for ex situ sampling. 28 of 30 were classified appropriately yielding an overall 93% accuracy rating.

Copyright Text: Skytruth.org original data, analysis compilation by Lindsay Golden, Gary Crow, Gil Castillo, Brandon Deusenberry

Spatial Reference: 32617 (32617)

Initial Extent:
Full Extent:
Units: esriMeters

Child Resources:   Info   SharedTemplates

Supported Operations:   Query   ConvertFormat   Get Estimates   Create Replica