39-m Resolution Stream Power Index

Stream power index (SI) takes into account both a local slope geometry and site location in the landscape combining data on slope gradient and catchment area.

Stream power index can be used to describe potential flow erosion at the given point of the topographic surface. As catchment area and slope gradient increase, the amount of water contributed by upslope areas and the velocity of water flow increase, hence stream power index and erosion risk increase.

Stream power index controls potential erosive power of overland flows, thickness of soil horizons, organic matter, pH, silt and sand content, plant cover distribution.

Data e Risorse

Campo Valore
accessLevel public
bureauCode {010:24}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
dataQuality true
identifier NPS_DataStore_2217086
issued 2014-11-05
landingPage https://irma.nps.gov/DataStore/Reference/Profile/2217086
modified 2014-11-05
old-spatial -84.0139,35.42586,-83.0425,35.84241
programCode {010:118,010:119}
publisher National Park Service
references {https://irma.nps.gov/DataStore/Reference/Profile/2217086}
resource-type Dataset
source_datajson_identifier true
source_hash 543a75ce0ac64f3a01532ec8610deffc0d876d9f
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-84.0139, 35.42586], [-84.0139, 35.84241], [-83.0425, 35.84241], [-83.0425, 35.42586], [-84.0139, 35.42586]]]}
temporal 2014-11-05/2014-11-05
theme {"Raster Dataset"}
Gruppi
  • AmeriGEOSS
  • National Provider
  • North America
Tag
  • amerigeo
  • amerigeoss
  • ckan
  • ecological-framework-geology-and-soils-geomorphology-hillslope-features-and-processes
  • geo
  • geomorphology
  • geoss
  • hydrology
  • national
  • north-america
  • streams
  • united-states
isopen False
license_id notspecified
license_title License not specified
maintainer NPS IRMA Help
maintainer_email irma@nps.gov
metadata_created 2025-11-22T22:55:32.889453
metadata_modified 2025-11-22T22:55:32.889457
notes Stream power index (SI) takes into account both a local slope geometry and site location in the landscape combining data on slope gradient and catchment area. Stream power index can be used to describe potential flow erosion at the given point of the topographic surface. As catchment area and slope gradient increase, the amount of water contributed by upslope areas and the velocity of water flow increase, hence stream power index and erosion risk increase. Stream power index controls potential erosive power of overland flows, thickness of soil horizons, organic matter, pH, silt and sand content, plant cover distribution.
num_resources 1
num_tags 12
title 39-m Resolution Stream Power Index