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Greenland Ice Core
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Frozen Annals
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Polar Programs
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Arctic Bulletin
One issue each year devoted to the annual report.
Guide to Programs
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Programs and Plans
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Arctic Research Programs
Review of arctic research supported throughout the Foundation, including those of the office of Polar Programs. Includes list of NSF arctic research grants, FY 1978.
The Two-Mile Time Machine
In the 1990s Richard B. Alley and his colleagues made headlines with the discovery that the last ice age came to an abrupt end over a period of only three years. In The Two-Mile Time Machine, Alley tells the fascinating history of global climate changes as revealed by reading the annual rings of ice from cores drilled in Greenland. He explains that humans have experienced an unusually temperate climate compared to the wild fluctuations that characterized most of prehistory. He warns that our comfortable environment could come to an end in a matter of years and tells us what we need to know in order to understand and perhaps overcome climate changes in the future. In a new preface, the author weighs in on whether our understanding of global climate change has altered in the years since the book was first published, what the latest research tells us, and what he is working on next.
Determining Greenland Ice Sheet Accumulation Rates from Radar Remote Sensing
An important component of NASA's Program for Arctic Regional Climate Assessment (PARCA) is a mass balance investigation of the Greenland Ice Sheet. The mass balance is calculated by taking the difference between the snow accumulation and the ice discharge of the ice sheet. Uncertainties in this calculation include the snow accumulation rate, which has traditionally been determined by interpolating data from ice core samples taken throughout the ice sheet. The sparse data associated with ice cores, coupled with the high spatial and temporal resolution provided by remote sensing, have motivated scientists to investigate relationships between accumulation rate and microwave observations. Jezek, Kenneth C. Goddard Space Flight Center
Army RD & A.
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