Service Description: Great Smoky Mountains National Park Disturbance History
Service ItemId: c379cb0520c246f091917834ed22fd58
Has Versioned Data: false
Max Record Count: 2000
Supported query Formats: JSON
Supports applyEdits with GlobalIds: True
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Description: This dataset is a compilation of forest damage mapped by surveys on forested areas in the Great Smoky Mountains National Park. At this time, the National Aerial Survey Data Standards require only mortality and defoliation data be collected and reported. However, park staff collect data on other types of damage and therefore, this has been designed to accommodate these data. Due to the nature of GIS surveying, there may be areas within the delineated polygons that are unaffected. For example, an area with a patchy mosaic of forest insect activity may be recorded as one larger polygon by the observer. During surveys, only fading trees (those with yellow, brown, or red foliage) or those with some defoliation are mapped. Older dead trees which have lost their foliage or have dull colored foliage are not typically mapped for two primary reasons 1) it is harder to see older dead trees that may have lost their needles and 2) it prevents recording trees that were mapped in a prior year's survey. Overview surveys are a 'snap shot' in time and therefore may not be timed to accurately capture the true extent or severity of a particular disturbance activity. Specially designed surveys with modified flight patterns and timing may be conducted to more accurately delineate the extent and severity of a particular disturbance agent. Special surveys are conducted when resources are available to address situations of sufficient economic, political or environmental importance. Polygon Data related to disturbance point and polygon features. Location_ID is the primary/foreign key attribute. To provide a single, consistent source for all remote-sensing detected insect, disease, and abiotic forest damage data to facilitate parkl reporting of damage for both Forest Health Monitoring and Forest Health Protection. Use of these data requires access to the accompanying GIS data, "Vegetation Disturbance Database (Attribute Table)". These data are authoritative data published by the National Park Service. Search for additional authoritative park GIS and Map data within this system by performing a keyword search of "Great Smoky Mountains National Park". These data can also be accessed through the National Park Service Integrated Resource Management Applications Portal using Reference Codes 2205047 and 2219242
Copyright Text: Great Smoky Mountains National Park
Spatial Reference: 4269 (4269)
Initial Extent:
XMin: -84.1067016079
YMin: 35.303461700068
XMax: -82.9138992741
YMax: 35.962756080932
Spatial Reference: 4269 (4269)
Full Extent:
XMin: -84.05248332
YMin: 35.423652201
XMax: -82.968117562
YMax: 35.84256558
Spatial Reference: 4269 (4269)
Units: esriDecimalDegrees
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