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Full-Text Articles in Physical Sciences and Mathematics
Nitrate Plus Nitrite Concentrations In A Himalayan Ice Core, William Berry Lyons, Paul Andrew Mayewski
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
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 …
Ice Mass Fluctuations In Northernvictoria Land, Paul Andrew Mayewski
Ice Mass Fluctuations In Northernvictoria Land, Paul Andrew Mayewski
Earth Science Faculty Scholarship
[From the introduction] Rennick Glacier is one of the major ice drainages for the northern Victoria Land sector of East Antarctica. Unlike glaciers farther south along the Transantarctic Mountains, Rennick Glacier does not drain into the Ross Ice Shelf but flows directly into a seasonally ice-covered ocean. Therefore, current fluctuations of this glacier are unhampered by the dampening effects of the Ross Ice Shelf. The primary controls on the activity of this glacier and others in this region are mass balance and sea level.