HAP - Aquatic Headwaters

This raster dataset has been created using inputs including small watersheds and the National elevation datasets collected through the National Elevation Dataset seamless downloader. Flow accumulation was calculated using GIS and values were assigned to the raster based on the amount number of cells flowing into each cell as follows: # of cells flowing into Value 0-10 10 10-25 9 25-50 8 50-100 7 100-200 6 200-400 5 400-1000 4 1000-2500 3 2500-5500 2 5500-11000 1 >11000 0 This was then intersected with the small watersheds and conservation value was assign to the watersheds based on the average value of the flow accumulation within the watershed. Conservation values were determined by experts gathered by Natural Lands Trust through SmartConservationÂ®. This data set is one of several that have been combined to create an overall aquatic resources conservation value raster for the High Allegheny Plateau 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

Additional Info

Field	Value
Last Updated	March 17, 2021, 00:11 (EDT)
Created	March 17, 2021, 00:11 (EDT)
GUID
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"}]
encoding	utf8
frequency-of-update	notPlanned
harvest_url	http://catalog.data.gov/dataset/3295c488-85c9-4ada-9dda-71ef8e92b80a
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-data-service-type
spatial-reference-system
spatial_harvester	true