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1. |
Gravitational resonance: Saturn's rings |
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Eos, Transactions American Geophysical Union,
Volume 63,
Issue 44,
1982,
Page 833-833
Peter M. Bell,
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PDF (158KB)
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摘要:
Perhaps no one thought much more would need to be known about Saturn's rings 100 or so years ago, when Daniel Kirkwood explained the various features. The main rings, within the three so‐called Cassini divisions, were due to gravitational resonance conditions between small orbiting particles and the satellite Mimas. Now, after several spacecraft—especially Voyager—have shown the rings' close‐up characteristics, there has been a great deal of activity in the planetary geophysics community to try to explain the origin of the numerous features of the rings of solar system bodies that were far beyond the resolution of telescopes in Kirkwood s day. A pretty good sample of that activity was reported recently by R.A. Kerr (Science, Oct. 8, 1982), who stated ‘Resonance theory still stands after the onslaught of spacecraft observations, but its new applications have yielded a greater variety of ring features than Kirkwood ever dreamed.’ One has only to have an inkling of the levels of gravitational mechanics to appreciate the complexities of the theories that have yielded resonance variations such as spiral density waves and bending waves in the past few years. As theories unfold, however, and are tested against Voyager's results, it has become evident that most of the actually observed ring structure of the major planets remains
ISSN:0002-8606
DOI:10.1029/EO063i044p00833-01
年代:1982
数据来源: WILEY
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2. |
Multidisciplinary program to study warm core rings |
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Eos, Transactions American Geophysical Union,
Volume 63,
Issue 44,
1982,
Page 834-835
David Schink,
James McCarthy,
Terrence Joyce,
Glenn Flierl,
Peter Wiebe,
Dana Kester,
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PDF (1346KB)
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摘要:
A major research program is underway, sponsored principally by the National Science Foundation, to study warm core rings off t he East Coast of the United States. The program involves more than 25 principal investigators and 13 different institutions. The National Oceanographic and Atmospheric Administration (NOAA) is actively participating through the National Marine Fisheries Service (NMFS) a n d their National Earth Satellite Service. NASA is cooperating with aircraft overflights during cruises and by sponsoring some shipboard work.
ISSN:0002-8606
DOI:10.1029/EO063i044p00834
年代:1982
数据来源: WILEY
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3. |
Another vote for Explorer |
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Eos, Transactions American Geophysical Union,
Volume 63,
Issue 44,
1982,
Page 835-835
Barbara T. Richman,
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PDF (1474KB)
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摘要:
A National Research Council committee formally added its name to the growing roster of those who endorse the conversion of the Glomar Explorer to a drill ship that would replace the Glomar Challenger as the pillar of scientific ocean drilling in the proposed Advanced Ocean Drilling program (AOD).With its final report, ‘Options for Scientific Ocean Drilling,’ the Committee on Ocean Drilling of the Geological Sciences Board joins, among others, the National Science Board (Eos, April 6, 1982, p. 219) and the Conference on Scientific Ocean Drilling (COSOD) (Eos, December 22, 1981, p. 1197) in urging continued scientific ocean drilling using the former CIA salvage shipExplorer. (The committee's interim report also had backed the program.) AOD, an extension of the Deep Sea Drilling Program carried out with theChallenger, would be supported in part through the Office of Scientific Ocean Drilling in the National Science Foundation (N
ISSN:0002-8606
DOI:10.1029/EO063i044p00835-01
年代:1982
数据来源: WILEY
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4. |
1982 AGU Fellows |
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Eos, Transactions American Geophysical Union,
Volume 63,
Issue 44,
1982,
Page 838-838
Anonymous,
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PDF (3026KB)
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摘要:
Thomas J. Ahrens—For fundamental studies of the equation of state for rocks and minerals.Wilfried H. Brutsaert—For his contributions to understanding the dynamics of evaporation from the earth's surf
ISSN:0002-8606
DOI:10.1029/EO063i044p00838
年代:1982
数据来源: WILEY
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