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Articles 211 - 215 of 215
Full-Text Articles in Physical Sciences and Mathematics
Long-Term And Seasonal Variations In Co2: Linkages To Catchment Alkalinity Generation, Stephen A. Norton, B. J. Cosby, I. J. Fernandez, J. S. Kahl, M. Robbins Church
Long-Term And Seasonal Variations In Co2: Linkages To Catchment Alkalinity Generation, Stephen A. Norton, B. J. Cosby, I. J. Fernandez, J. S. Kahl, M. Robbins Church
Earth Science Faculty Scholarship
As atmospheric emissions of S have declined in the Northern Hemisphere, there has been an expectation of increased pH and alkalinity in streams believed to have been acidified by excess S and N. Many streams and lakes have not recovered. Evidence from East Bear Brook in Maine, USA and modelling with the groundwater acid-base model MAGIC (Cosby et al. 1985a,b) indicate that seasonal and yearly variations in soil PCO2 are adequate to enhance or even reverse acid-base (alkalinity) changes anticipated from modest decreases of SO4 in surface waters. Alkalinity is generated in the soil by exchange of H+ from dissociation …
Proposals For Promoting Water Reallocation And Efficiency, Gary D. Weatherford
Proposals For Promoting Water Reallocation And Efficiency, Gary D. Weatherford
Western Water: Expanding Uses/Finite Supplies (Summer Conference, June 2-4)
4 pages.
Innovative Approaches To Water Allocation: The Potential For Water Markets, Charles W. Howe
Innovative Approaches To Water Allocation: The Potential For Water Markets, Charles W. Howe
Western Water: Expanding Uses/Finite Supplies (Summer Conference, June 2-4)
20 pages.
Changing Patterns Of Water Use In The West: Pressures On The System, David H. Getches
Changing Patterns Of Water Use In The West: Pressures On The System, David H. Getches
Western Water: Expanding Uses/Finite Supplies (Summer Conference, June 2-4)
17 pages.
Glaciochemical Investigations As A Tool In The Historical Delineation Of The Acid Precipitation Problem, William B. Lyons, Paul Andrew Mayewski
Glaciochemical Investigations As A Tool In The Historical Delineation Of The Acid Precipitation Problem, William B. Lyons, Paul Andrew Mayewski
Earth Science Faculty Scholarship
Precipitation in the Northern Hemisphere has been recently recognized to have hydrogen ion concentrations 10 to 100 times higher than expected for natural precipitation (Likens and Bormann 1974, Cogbill and Likens 1974, Lewis and Grant 1980). However, controversy has arisen regarding the nature of the acidity of the precipitation sampled and whether, indeed, the pH of North American precipitation has increased over time (Miller and Everett 1979, Lerman 1979, Stensland 1980, Sequeria 1981, Carlson and Rodhe 1982). In most locations pH records have been constructed rather imperfectly due to differences in sampling, handling, and analytical procedures used (Galloway and Likens …