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Full-Text Articles in Glaciology

Nitrate Plus Nitrite Concentrations In A Himalayan Ice Core, William Berry Lyons, Paul Andrew Mayewski Dec 1983

Nitrate Plus Nitrite Concentrations In A Himalayan Ice Core, William Berry Lyons, Paul Andrew Mayewski

Earth Science Faculty Scholarship

The measurement of chemical constituents in glacial ice has been useful in discerning historic trends in chemical deposition and hence paleo-atmospheric records in remote areas (Thompson and Mosley - Thompson, 1981; Johnson and Chamberlain, 1981; Ng and Patterson, 1981; Neftel et al., 1982). However, delineating the sources of the deposited chemical species in question is not always straightforward. This has been especially true for nitrate. Although it is now believed that man-made emissions are responsible for a high percentage of nitrate being deposited in remote areas of the Northern Hemisphere, numerous natural sources, named and unnamed, have also contributed to …


Chemical Composition Of A High Altitude Fresh Snowfall In The Ladakh Himalayas, Paul Andrew Mayewski, William Berry Lyons, N Ahmad Jan 1983

Chemical Composition Of A High Altitude Fresh Snowfall In The Ladakh Himalayas, Paul Andrew Mayewski, William Berry Lyons, N Ahmad

Earth Science Faculty Scholarship

Studies of the chemical constituents in Antarctic and Greenland snow and ice cores have proven to be extremely useful for determining the composition of the atmosphere during past climatic events (Boutron and Delmas, 1980; Herron, 1982) and hence provide data concerning climatic change. Despite the potential for the collection of similar types of information from high altitude temperate glacier snow and ice cores, their study has been limited. In addition, unlike polar ice sheets, high altitude temperate glaciers are not only close to populated area but have higher accumulation rates. Owing to the latter, preservation of detailed records on sub-annual …