Acid rain model: hydrologic module

Journal Article · Tue Jun 01 04:00:00 EDT 1982 · J. Environ. Eng. (N.Y.); (United States)

OSTI ID:6068803

Chen, C W; Dean, J D; Gherini, S A; Goldstein, R A

An integrated lake-watershed acidification study (ILWAS) model is presented and findings based on simulation applications of the model to date are evaluated. The ILWAS model includes hydrologic, canopy chemistry, snowmelt chemistry, soil chemistry, and stream and lake water quality modules. For modeling purposes a drainage basin is divided into terrestrial subcatchments, stream segments, and a lake. Vertically, each subcatchment is further segmented into canopy, snow pack, and soil layers. The lake is also vertically layered. All these physical compartments are coupled to form a network that allows water to be routed through the system to the lake outlet. The hydrologic module of the ILWAS model realistically simulated the total outflow from a lake basin and the hydrology of the subcatchments. The flowpaths of rain and snowmelt water through the terrestrial system are important factors in determining the susceptibility of lakes to acidification by atmospheric deposition. 22 references, 12 figures, 5 tables.

• Research Organization: Tetra Tech Inc., Lafayette, CA
• OSTI ID: 6068803
• Journal Information: J. Environ. Eng. (N.Y.); (United States), Journal Name: J. Environ. Eng. (N.Y.); (United States) Vol. 108:EE3; ISSN JOEED
• Country of Publication: United States
• Language: English

Related Subjects

520200* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACID RAIN
ACIDIFICATION
ATMOSPHERIC PRECIPITATIONS
CANOPIES
CHEMISTRY
COMPUTERIZED SIMULATION
DESIGN
ENVIRONMENTAL QUALITY
ENVIRONMENTAL TRANSPORT
HYDROGEN COMPOUNDS
HYDROLOGY
LAKES
MASS TRANSFER
MATHEMATICAL MODELS
MEETINGS
OXYGEN COMPOUNDS
RAIN
SIMULATION
SNOW
SOIL CHEMISTRY
SOILS
STREAMS
SURFACE WATERS
WATER
WATER CHEMISTRY
WATER QUALITY
WATERSHEDS