Uncertainty analysis for long-term acidification of lakes in northeastern USA

Thesis/Dissertation · Thu Jan 01 04:00:00 EST 1987

OSTI ID:6293215

Lee, S

The first-order second-moment uncertainty analysis coupled with the Enhanced Trickle-Down model has been applied to Lakes (acidic) and Lake Panther (neutral) in the Adirondack Park, New York to assess the surface water response to acid deposition and to quantify the propagation of the uncertainty from the inputs of the model for the next 50 years beginning 1978. A simple mass balance equation was used to determine the important reactions which occur in Lakes Woods and Panther. The mass balance requires only three input parameters: deposition ion concentration, lake ion concentration, and an evapoconcentration factor applicable to the watersheds. It was determined that the most important alkalizing reaction in both of the lakes was the production of base cations by ion exchange and chemical weathering. Dry deposition of sulfate was important to the sulfate balance in both of the lakes. Since nitrate and ammonium ion inputs in both of the lakes are largely assimilated by terrestrial and aquatic plants, the net effect is alkalizing to both of the lakes.

• Research Organization: Iowa State Univ. of Science and Technology, Ames (USA)
• OSTI ID: 6293215
• Country of Publication: United States
• Language: English

Related Subjects

520200* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACID RAIN
ACIDIFICATION
AIR POLLUTION
AMMONIUM COMPOUNDS
ATMOSPHERIC PRECIPITATIONS
CATIONS
CHARGED PARTICLES
ECOLOGICAL CONCENTRATION
ENVIRONMENTAL EFFECTS
FEDERAL REGION II
ION EXCHANGE
IONS
LAKES
MATHEMATICAL MODELS
MONITORING
NEW YORK
NITRATES
NITROGEN COMPOUNDS
NORTH AMERICA
OXYGEN COMPOUNDS
POLLUTION
RAIN
SULFATES
SULFUR COMPOUNDS
SURFACE WATERS
USA