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GIS Coverage of the National Water-Quality Assessment (NAWQA) Program Trace Elements Sampling Sites for the EPA Clean Air Mapping and Analysis Program (C-MAP)
Entry ID:
NAWQA_TE
Summary
Abstract:
This is a point coverage of the sampling sites for the U.S. Geological Survey
National Water-Quality Assessment (NAWQA) Program Study-Unit investigations of Trace Elements for the conterminous United States, excluding the High Plains Regional Ground-Water Study. It is intended for use with NAWQA_TE.DBF and as an overlay with NAWQA, the NAWQA study units boundary coverage. The National ... 
Related URL
Data Set Citation
Dataset Originator/Creator:
Hitt, K.J. and Nakagaki, N.
Dataset Title:
National Water-Quality Assessment (NAWQA) Study-Unit Investigations in the conterminous United States : Trace Elements Sampling Sites
Dataset Release Date:
1999--07-01
Dataset Release Place:
Reston, Virginia
Dataset Publisher:
USGS
Data Presentation Form:
Map
Online Resource:
http://www.epa.gov/airmarkets/
Temporal Coverage
Start Date:
1999-01-01
Stop Date:
1999-12-31
Location Keywords
Science Keywords
Project
Quality
This data set is used primarily to display the location of NAWQA Trace Element
Study Sites and for use with the NAWQA Study Unit boundaries coverage (NAWQA) for analysis of data at the national scale. It is not recommended for either local or regional analysis due to the small scale of most of the features. The dataset was created from Latitude/Longitude coordinates using ArcView GIS. A shapefile was created from lat/long coordinates and was then converted into a coverage using ArcInfo. The coverage was re-projected into Albers for use with other CAMD GIS coverages. Data Set Progress
COMPLETE
Originating Center
Data Center
Distribution
Distribution Media:
electronic
Distribution Size:
21 KB
Distribution Format:
ArcView shapefile
Fees:
No fees
Personnel
Role:
DIF AUTHOR
Phone:
(301) 614-6898
Fax:
301-614-5268
Email:
Tyler.B.Stevens at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Global Change Master Directory
City:
Greenbelt
Province or State:
MD
Postal Code:
20771
Country:
USA
Publications/References
Rice, K.C. 1999. Trace-element concentrations in streambed sediment across the
conterminous United States. Environmental Science and Technology. 33 Extended Metadata Properties
(Click to view more)
Creation and Review Dates
DIF Creation Date:
2002-11-14
Last DIF Revision Date:
2013-04-22
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