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1. |
New approaches raise questions about future sea level change |
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Eos, Transactions American Geophysical Union,
Volume 77,
Issue 40,
1996,
Page 385-388
Miriam Baltuck,
Jean Dickey,
Tim Dixon,
Christopher G. A. Harrison,
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摘要:
Sea level and its rate of change have important long‐ and short‐term social and economic implications because of impacts on low‐lying coastal regions. Our ability to predict the future position of mean sea level and the pattern of spatial and temporal fluctuations around this mean is a good test of our understanding of global climate change. Sea level integrates the effects of several critical aspects of global climate change such as global atmospheric and oceanic temperatures, and the health of large ice sheets near the poles and smaller mountain glaciers at all latitudes. If we can confidently predict neither the likely locations of major coastal flooding next year, nor the height of mean sea level 100 years from now, we have a lot more work to do in understanding processes within and links between the atmosphere‐ocean‐solid Ear
ISSN:0002-8606
DOI:10.1029/96EO00263
年代:1996
数据来源: WILEY
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2. |
Elemental evidence |
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Eos, Transactions American Geophysical Union,
Volume 77,
Issue 40,
1996,
Page 386-386
Michael Carlowicz,
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PDF (135KB)
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摘要:
He set out to prove that ocean sediments contain elevated levels of the rare element iridium because of the natural weathering of the continents. Instead, what Ariel Anbar found was new evidence that a meteorite may have had a role in the mass extinctions that marked the end of the Cretaceous era.By studying the geochemical properties of iridium, Anbar, a professor of earth and environmental sciences and chemistry at the University of Rochester, found that the residence time—a measure of the rate at which an element settles out of water into sediments—of iridium in ocean water is 2000 to 20,000 years. That finding suggests that a large deposit of iridium could have lingered in the world's oceans long enough to explain the thickness of the iridium‐rich sediment layers at the K‐T b
ISSN:0002-8606
DOI:10.1029/EO077i040p00386-02
年代:1996
数据来源: WILEY
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3. |
Land of the Rising Funds |
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Eos, Transactions American Geophysical Union,
Volume 77,
Issue 40,
1996,
Page 387-387
Anonymous,
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PDF (140KB)
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摘要:
Japan continues to move ahead with its new 5‐year plan to increase spending on science and technology research by 50% (up to $170 billion U.S.). In submitting its budget request for the next fiscal year—which begins April 1—Japan's Ministry of Trade and Industry asked for a 16.9% increase in its budget, while the Science and Technology Agency sought a 10.7% boost.Ambitious programs in brain research and in the analysis of protein structure make up large portions of the budget requests; and in fact, research in all the life sciences could get a 27% boost. But Japanese science leaders are also hoping to increase funding for research on global climate change by 35%; for oceanographic science, up 20%; and for public safety and disaster mitigation b
ISSN:0002-8606
DOI:10.1029/EO077i040p00387-02
年代:1996
数据来源: WILEY
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