This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

Chattanooga Stormwater Sub-basins: Percent Impervious Surface

Metadata Updated: August 15, 2019

Urban green space serves as a much needed component of the modern urban environment. Green spaces are traditionally characterized by open areas bearing tree canopy or grasses. Urban green spaces provide flood control, temperature regulation, air quality controls, wildlife habitat, and recreation opportunities. The sum of green spaces within the urban environment is often referred to as the green infrastructure of a designated area. Green infrastructure, like traditional grey infrastructure such as roads, rail, and utilities, plays a necessary role in the connectivity and completeness of the Urban/Wildland environment. The ratio of impervious surfaces and open/greenspace by watershed is a useful tool in urban ecosystem assessment, essentially the ratio of green verses grey infrastructure. Consensus among researchers has indicated a significant decrease in water quality parameters and aquatic biological diversity when impervious surfaces range from 15-18% of the total area of a watershed. GIS specialist at the University of Tennessee at Chattanooga calculated the percent imperviousness for the City of Chattanooga's Stormwater division basin boundaries. The calculation was added to a polygon vector file containing a percent imperviousness field.

Access & Use Information

Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: No license information was provided.

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Dates

Metadata Date July 18, 2006
Metadata Created Date August 15, 2019
Metadata Updated Date August 15, 2019
Reference Date(s) May 1, 2006 (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from Pennsylvania Geospatial Data Clearinghouse

Additional Metadata

Resource Type Dataset
Metadata Date July 18, 2006
Metadata Created Date August 15, 2019
Metadata Updated Date August 15, 2019
Reference Date(s) May 1, 2006 (publication)
Responsible Party University of Tennessee at Chattanooga (Point of Contact)
Contact Email
Access Constraints Use Constraints: None, Access Constraints: None
Bbox East Long -85.040954
Bbox North Lat 35.208294
Bbox South Lat 34.94239
Bbox West Long -85.419817
Coupled Resource
Frequency Of Update notPlanned
Guid
Harvest Object Id bab682e9-6ef4-4ab2-a453-ed22f1d102dd
Harvest Source Id 461fc638-8de6-4c37-9f60-43399e6f6031
Harvest Source Title Pennsylvania Geospatial Data Clearinghouse
Licence Disclaimer: Although these data have been processed successfully on a computer system at the NBII Southern Appalachian Information Node, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that these data are directly acquired from a National Biological Information Infrastructure server, and not indirectly through other sources which may have changed the data in some way. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. NBII shall not be held liable for improper or incorrect use of the data described and/or contained herein.
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True

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