Main Title |
Generalized Soft Water Acidification Model. |
Author |
Nikolaidis, N. P. ;
Rajaram, H. ;
Schnoor, J. L. ;
Georgakakos, K. P. ;
|
CORP Author |
Iowa Univ., Iowa City.;Corvallis Environmental Research Lab., OR. |
Publisher |
c1988 |
Year Published |
1988 |
Report Number |
EPA/600/J-88/565; |
Stock Number |
PB91-182055 |
Additional Subjects |
Acidification ;
Mathematical models ;
Hydrology ;
Surface waters ;
Ecosystems ;
Water pollution effects ;
Time series analysis ;
Deposition ;
pH ;
Air water interactions ;
Snowmelt ;
Lake Woods ;
Lake Panther ;
Watersheds ;
Water chemistry ;
Physicochemical properties ;
Water flow ;
Evapotranspiration ;
New York ;
Case studies ;
Biochemistry ;
Reprints ;
Enhanced Trickle-Down Model ;
Soft water ;
Adirondack Park
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB91-182055 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
16p |
Abstract |
A generalized soft water acidification model has been developed. The enhanced trickle-down (ETD) model is driven by precipitation, evaporation, acidity, sulfate, and chloride loading time series daily input data. The hydrologic component simulates snowmelt, interflow, overland flow, groundwater flow, frozen ground processes, seepage, and evapotranspiration. Physicochemical and biological processes that affect the alkalinity or sulfate balance and are included in the formulation are cation exchange, chemical weathering, sulfate sorption, and sulfate reduction. The system of 20 ordinary differential equations is solved by using a variable time step fourth-order predictor-corrector numerical scheme. Shown here is calibration of the ETD model for two lakes in the Adirondack Park of New York. ETD is relatively simple and requires limited input data, and yet it accounts for the predominant hydrologic and biochemical processes of the ecosystem. (Copyright (c) 1988 by the American Geophysical Union.) |
Supplementary Notes |
Pub. in Water Resources Research, v24 n12 p1983-1996 Dec 88. Sponsored by Corvallis Environmental Research Lab., OR. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Generalized Soft Water Acidification Model. |
Category Codes |
48G; 68D; 57H; 99F |
NTIS Prices |
PC A03/MF A01 |
Primary Description |
600/02 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
119320993 |
Origin |
NTIS |
Type |
CAT |