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OLS Field Name OLS Field Data
Main Title MAGIC Simulation of Surface Water Acidification at, and First Year Results from the Bear Brook Watershed Manipulation, Maine, USA.
Author Norton, S. A. ; Wright, R. F. ; Kahl, J. S. ;
CORP Author Maine Univ., Orono. Dept. of Geological Sciences. ;Norsk Inst. for Vannforskning, Oslo.;Corvallis Environmental Research Lab., OR.
Publisher c1992
Year Published 1992
Report Number EPA/600/J-92/400;
Stock Number PB93-121291
Additional Subjects Acidification ; Watersheds ; Bear Brook ; Water pollution ; Air water interactions ; Experimental design ; Maine ; Surface waters ; Water chemistry ; Hydrology ; Air pollution ; Computerized simulation ; Soil water ; Ion exchanging ; Acid neutralizing capacity ; pH value ; Nitrogen oxides ; Sulfur oxides ; Chlorine ; Nitrification ; Reprints ; MAGIC model ; Model for Acidification of Groundwater in Catchments
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB93-121291 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/08/1993
Collation 10p
Abstract The catchments of East and West Bear Brooks, Maine, USA, with similar stream chemistries and hydrographs, have been hydrologically and chemically monitored for 3.5 years. These clear water streams are low in ANC (0-70 microeg/litre), with variations caused by changing concentrations of base cations, SO4, NO3, and Cl. After one year of treatment, the response of the stream chemistry and the response modelled by MAGIC are similar. Episodes of high discharge in the treated catchment are not characterized by lower ANC and pH, and higher Al than prior to the manipulation. Concentrations of NO3 have increased about 10 microeg/litre during the dormant season, presumably due to additional nitrification of N and NH4. Discharge-chemistry relationships indicate that changes in stream chemistry, except for NO3, are dominated by ion exchange reactions in the upper part of the soil profile.
Supplementary Notes Pub. in Environmental Pollution, v77 p279-286 1992. Prepared in cooperation with Norsk Inst. for Vannforskning, Oslo. Sponsored by Corvallis Environmental Research Lab., OR.
NTIS Title Notes Journal article.
Title Annotations Reprint: MAGIC Simulation of Surface Water Acidification at, and First Year Results from the Bear Brook Watershed Manipulation, Maine, USA.
Category Codes 68D; 68A; 48G; 99F
NTIS Prices PC A02/MF A01
Primary Description 600/02
Document Type NT
Cataloging Source NTIS/MT
Control Number 300826373
Origin NTIS
Type CAT