CAF - Aquatic Impervious Change

This raster dataset has been created by calculating the average of impervious surface for the small watersheds for years 1985 and 2000. The difference between these was then calculated by subtracting the 1985 data from the 2000 data. The output was reclassified into ten quantiles in order to assign Conservation Value as follows: Impervious Surface Change Value -1.066752 - -0.332464 10 -0.332464 - -0.087701 9 -0.087701 - 0.157062 8 0.157062 - 0.401825 7 0.401825 - 0.646588 6 0.646588 - 0.891351 5 0.891351 - 1.625639 4 1.625639 - 2.604691 3 2.604691 - 5.297083 2 5.297083 - 61.592545 1 Conservation values were determined by experts gathered by Natural Lands Trust through SmartConservation®. This data set is one of several that have been combined to create an overall aquatic resources conservation value raster for the Central Appalachian Forest Ecoregion. Therefore the values were determined as a relative rank, comparable in value only to the other input aquatic resources data. Conservation value ranges from 1 - 10 with 10 being the highest value.

Data and Resources

Field Value
access_constraints ["Access Constraints:"]
bbox-east-long -74.569949
bbox-north-lat 42.412572
bbox-south-lat 39.548312
bbox-west-long -80.738558
contact-email drosencrance@natlands.org
coupled-resource []
dataset-reference-date [{"type": "publication", "value": "2010-01-01"}]
frequency-of-update notPlanned
licence ["The USER shall indemnify, save harmless, and, if requested, defend those parties involved with the development and distribution of this data, their officers, agents, and employees from and against any suits, claims, or actions for injury, death, or property damage arising out of the use of or any defect in the FILES or any accompanying documentation. Those parties involved with the development and distribution excluded any and all implied warranties, including warranties or merchantability and fitness for a particular purpose and makes no warranty or representation, either express or implied, with respect to the FILES or accompanying documentation, including its quality, performance, merchantability, or fitness for a particular purpose. The FILES and documentation are provided \"as is\" and the USER assumes the entire risk as to its quality and performance. Those parties involved with the development and distribution of this data will not be liable for any direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the FILES or any accompanying documentation."]
metadata-date 2010-06-01
metadata-language eng; USA
metadata_type geospatial
progress completed
resource-type dataset
responsible-party [{"name": "Natural Lands Trust", "roles": ["pointOfContact"]}]
spatial {"type": "Polygon", "coordinates": [[[-80.738558, 39.548312], [-74.569949, 39.548312], [-74.569949, 42.412572], [-80.738558, 42.412572], [-80.738558, 39.548312]]]}
spatial_harvester true
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • aquatic-resources
  • central-appalachian-forest
  • ckan
  • geo
  • geoss
  • imagerybasemapsearthcover
  • impervious-cover-change
  • national
  • north-america
  • smartconservation
  • united-states
isopen False
metadata_created 2025-11-20T15:28:54.402918
metadata_modified 2025-11-20T15:28:54.402922
notes This raster dataset has been created by calculating the average of impervious surface for the small watersheds for years 1985 and 2000. The difference between these was then calculated by subtracting the 1985 data from the 2000 data. The output was reclassified into ten quantiles in order to assign Conservation Value as follows: Impervious Surface Change Value -1.066752 - -0.332464 10 -0.332464 - -0.087701 9 -0.087701 - 0.157062 8 0.157062 - 0.401825 7 0.401825 - 0.646588 6 0.646588 - 0.891351 5 0.891351 - 1.625639 4 1.625639 - 2.604691 3 2.604691 - 5.297083 2 5.297083 - 61.592545 1 Conservation values were determined by experts gathered by Natural Lands Trust through SmartConservation®. This data set is one of several that have been combined to create an overall aquatic resources conservation value raster for the Central Appalachian Forest Ecoregion. Therefore the values were determined as a relative rank, comparable in value only to the other input aquatic resources data. Conservation value ranges from 1 - 10 with 10 being the highest value.
num_resources 2
num_tags 13
title CAF - Aquatic Impervious Change