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BASIC PREMISE: There is a clear north to south gradient in concentration with highest concentrations of nitrate observed in the northern regions of the ice sheet. However, there are also temperature and accumulation gradients from north to south. Are the concentration gradients a function of post-de...

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Bibliographic Details
Main Authors: John F. Burkhart, Roger C. Bales, Joseph R Mcconnell, Manuel A Hutterli, Neil Moore, All V. Martin, Markus Frey
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
Ice Sheet
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.542.185
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Summary:BASIC PREMISE: There is a clear north to south gradient in concentration with highest concentrations of nitrate observed in the northern regions of the ice sheet. However, there are also temperature and accumulation gradients from north to south. Are the concentration gradients a function of post-depositional effects driven by accumulation and temperature? Or are they representative of background atmospheric concentrations? If they are representative of atmospheric concentrations, has this gradient existed prior to anthropogenic influences?

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