Main Title |
Uncertainty in North American wet deposition isopleth maps : effect of site selection and valid sample criteria / |
Author |
Simpson, J. C., ;
Olsen, A. R.
|
Other Authors |
|
CORP Author |
Battelle Pacific Northwest Labs., Richland, WA.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab.;Department of Energy, Washington, DC. |
Publisher |
U.S. Environmental Protection Agency, Atmospheric Research and Exposure Assessment Laboratory, |
Year Published |
1990 |
Report Number |
EPA/600/4-90/005; DE-AC06-76RLO 1830; PB91101774 |
Stock Number |
PB91-101774 |
OCLC Number |
22529259 |
Subjects |
Acid deposition--United States--Maps ;
Acid rain--United States--Maps
|
Additional Subjects |
Deposition ;
Precipitation(Meteorology) ;
Nomographs ;
Probability theory ;
Maps ;
Study estimates ;
Site surveys ;
Spatial distribution ;
Data processing ;
Atmospheric chemistry ;
pH ;
Comparison ;
Sulfates ;
Numerical analysis ;
Least squares method ;
Interpolation ;
Concentration(Composition) ;
Air pollution sampling ;
Wet methods ;
North American ;
Acid rain ;
Regional analysis
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EHAM |
TD427.A27S55 1990 |
|
Region 1 Library/Boston,MA |
04/29/2016 |
EJBD |
EPA 600-4-90-005 |
|
Headquarters Library/Washington,DC |
08/14/2013 |
EKBD |
EPA-600/4-90-005 |
|
Research Triangle Park Library/RTP, NC |
08/30/2010 |
EKCD |
EPA/600/4-90/005 |
|
CEMM/GEMMD Library/Gulf Breeze,FL |
07/25/2018 |
ELBD ARCHIVE |
EPA 600/4-90/005 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ESAD |
EPA 600-4-90-005 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
NTIS |
PB91-101774 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
1 volume (various pagings) : illustrations, maps ; 28 cm |
Abstract |
The report considers several issues related to the preparation of isopleth maps for the display of spatial patterns of wet deposition. The valid sample criteria and data completeness rating used in the data summarization process are described. The data interpolation technique, kriging, is presented and its derivation in terms of generalized least squares regression is given. Four different annual summaries for pH, sulfate concentration, and sulfate deposition in 1986 are prepared using either the Unified Deposition Database Committee (UDDC) definition of valid sample criteria or a relaxed valid sample criteria and the UDDC data completeness rating or a relaxed data completeness rating. The kriged estimates for the different annual summaries and the differences between these estimates are contoured. The effects of relaxing the valid sample criteria and data completeness rating are discussed. Conclusions are drawn about network operation, network design and the uncertainty of contour maps. It is recommended that in the case where the objective is contour maps to show regional patterns, the emphasis in most regions needs to be on the number of valid samples per site and the regional representativeness of the sites. |
Notes |
"Pacific Northwest Laboratory." Shipping list no.: 90-619-P. "August 1990." Includes bibliographical references (pages 7.1-7.2). "EPA/600/4-90/005." |
Place Published |
Research Triangle Park, NC |
Supplementary Notes |
Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab., and Department of Energy, Washington, DC. |
Access Notes |
Also available on the Internet. |
Corporate Au Added Ent |
Atmospheric Research and Exposure Assessment Laboratory (U.S.),; United States. Department of Energy.; Pacific Northwest Laboratory. |
PUB Date Free Form |
1990 |
NTIS Prices |
PC A05/MF A01 |
BIB Level |
m |
Medium |
unmediated |
Content |
text |
Carrier |
volume |
Cataloging Source |
OCLC/T |
Merged OCLC records |
24827568; 1225720872 |
OCLC Time Stamp |
20180719034823 |
Language |
eng |
SUDOCS Number |
EP 1.23/5:600/4-90/005 |
Origin |
OCLC |
Type |
MERGE |
OCLC Rec Leader |
02776cam 2200625Ia 45010 |