| Main Title |
Episodic Acidification of Adirondack Lakes during Snowmelt. |
| Author |
Schaefer, D. A. ;
Driscoll, C. T. ;
Van Dreason, R. ;
Yatsko, C. P. ;
|
| CORP Author |
Syracuse Univ., NY. Dept. of Civil and Environmental Engineering.;Corvallis Environmental Research Lab., OR. |
| Publisher |
cJul 90 |
| Year Published |
1990 |
| Report Number |
EPA/600/J-90/435; |
| Stock Number |
PB91-177162 |
| Additional Subjects |
Acidification ;
Lakes ;
Snowmelt ;
Concentration(Composition) ;
Watersheds ;
Water chemistry ;
Baseline measurements ;
Hydrology ;
Water pollution ;
Surface waters ;
Mathematical models ;
Air water interactions ;
Hydrogeology ;
Runoff ;
Reprints ;
Acid neutralizing capacity ;
Adirondack Region(New York)
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB91-177162 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
7p |
| Abstract |
Maximum values of acid neutralizing capacity (ANC) in Adirondack, New York lake outlets generally occur during summer and autumn. During spring snowmelt, transport of acidic water through acid-sensitive watersheds causes depression of upper lake water ANC. In some systems lake outlet ANC reaches negative values. The authors examined outlet water chemistry from II Adirondack lakes during 1986 and 1987 snowmelts. In these lakes, SO concentrations were diluted during snowmelt and did not depress ANC. For lakes with high baseline ANC values, springtime ANC depressions were primarily accompanied by basic cation dilution. For lakes with low baseline ANC, No increases dominated ANC depressions. Lakes with intermediate baseline ANC were affected by both processes and exhibited larger ANC depressions. Ammonium dilution only affected wetland systems. A model predicting a linear relationship between outlet water ANC minima and autumn ANC was inappropriate. To assess watershed response to episodic acidification, hydrologic flow paths must be considered. (Copyright (c) 1990 by the American Geophysical Union.) |
| Supplementary Notes |
Pub. in Water Resources Research, v26 n7 p1639-1647 Jul 90. Sponsored by Corvallis Environmental Research Lab., OR. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Episodic Acidification of Adirondack Lakes during Snowmelt. |
| Category Codes |
48G; 48F; 99F; 68D |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/02 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
116430200 |
| Origin |
NTIS |
| Type |
CAT |
