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1. |
What is the lithosphere? |
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Eos, Transactions American Geophysical Union,
Volume 65,
Issue 17,
1984,
Page 321-325
John C. Maxwell,
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摘要:
What is the lithosphere? What things subduct, what things do not, and why? How is the lower continental crust formed? Where are the large‐ion lithophile elements stored? Is the style of plate tectonics episodic? These and related questions were considered during a workshop held at the University of Texas at Austin in March 1982 under the sponsorship of the U.S. Geodynamics Committee (USGC). The objectives of the workshop were somewhat unusual in that participants were asked to identify assumptions underlying proposed models and hypotheses, with special emphasis on controversies inherent in the various models. No attempt was made to reach consensus. The flavor of the discussions is indicated by the questions above, devised by a steering committee, each serving as the point of departure for approximately one half day of the wide‐ranging discuss
ISSN:0002-8606
DOI:10.1029/EO065i017p00321
年代:1984
数据来源: WILEY
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2. |
Coaxing clouds over Jerusalem |
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Eos, Transactions American Geophysical Union,
Volume 65,
Issue 17,
1984,
Page 322-322
Ellen Davidson,
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摘要:
It is raining 15% more in certain parts of Israel these winter days, and the man responsible for it is Avraham Gagin of the Meteorological Department of Jerusalem's Hebrew University.Gagin heads the research that has made Israel the world leader in artificially induced precipitation, where the population currently consumes more than 95% of the available water supply.
ISSN:0002-8606
DOI:10.1029/EO065i017p00322-01
年代:1984
数据来源: WILEY
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3. |
AGU Hydrology Section |
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Eos, Transactions American Geophysical Union,
Volume 65,
Issue 17,
1984,
Page 323-324
Anonymous,
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摘要:
The Executive Committee of the AGU Hydrology Section met in regular session at 4:00 P.M. on Thursday, December 8, 1983, in Room 378 of the Cathedral Hill Hotel, San Francisco, Calif. Seven board members were present with section president, Peter Eagleson, presiding.A total of 18 sessions were presented in San Francisco, and all were well attended, as was reported by program chairman Dennis Lettenmaier. Added to the regular sessions of General Hydrology, General Ground‐water Hydrology, and Sediment Transport were the following special sessions: Glacier Ocean Interaction, presider Edward Josberger; Orinoco and the Amazon, presider Edward Andrews; Transport and Geochemical Interactions in Stream Water, presider F. E. Bencola; Instream Flow Requirements for Fish, presider Brian W. Mar; Multivariate Modeling of Hydrologic and Other Geophysical Time Series, presiders Jose D. Salas and David R. Dawdy; Optimization Techniques for Managing Ground Water and Stream Aquifer Systems, presider Steve Gorelick; Treatment of Evapotranspiration Soil Moisture Evolution and Aquifer Recharge in Watershed Models, presiders Arlen D. Feldman and Hubert J. Morel‐Seytoux; Statistical Procedures for Estimating of Flood Risk at Gauged Sites, presider J. R. Stedinger; and Searching for More Physically Based Extreme Value Distributions in Hydrology, presider Juan B. Valdes. The session on Glacier Ocean Interaction received the most publicity, with numerous accounts of some of the presentations appearing in the newspaper. One of the pleasant surprises of the meetings was the high attendance at the special sessions on Optimization Techniques for Managing Ground Water and Stream Aquifer Systems and Multivariate Modeling of Hydrologic and Other Geophysical Time Series. Both sessions were highly interdisciplinary, attracting numerous scientists from other sections of
ISSN:0002-8606
DOI:10.1029/EO065i017p00323
年代:1984
数据来源: WILEY
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4. |
Flood estimation |
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Eos, Transactions American Geophysical Union,
Volume 65,
Issue 17,
1984,
Page 324-324
Jery R. Stedinger,
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摘要:
The three sessions on flood estimation at the Fall AGU meeting were well attended and quite successful. A brief synopsis is provided here. On Wednesday, S. Yakowitz and K. Adamowski both illustrated how nonparametric procedures could be employed to estimate probability density functions. Such procedures do not require that one assumes that flood flows come from a pre‐specified parametric family. Other papers addressed how information other than just the at‐site gauged record could be employed to estimate flood risk. J. Salas discussed the use of record augmentation procedures based on bivariate Gumbel distributions. T. Cohn showed how “historical” records documenting the absence or occurrence of large floods could dramatically improve design flood estimates at gaged sites. Finally, G. Tasker proposed the use of generalized least squares (GLS) procedures for deriving estimators of flood quantiles as a function of basin characteristics;; the GLS technique accounts for the sampling error and cross correlation of the flow quantile estimators. The procedure provided more accurate parameter estimates, much better estimates of the accuracy of the model's parameters, and an almost unbiased estimate of the predictio
ISSN:0002-8606
DOI:10.1029/EO065i017p00324-01
年代:1984
数据来源: WILEY
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5. |
World's carbon budget: Sinks and sources |
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Eos, Transactions American Geophysical Union,
Volume 65,
Issue 17,
1984,
Page 326-326
Peter M. Bell,
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摘要:
Interest in natural and man‐made carbon dioxide production is stirred because it resides after formation in critical atmospheric zones. To determine the oncoming “greenhouse” effect, indeed to determine whether there will be a greenhouse effect, investigators have tried to sum up the global carbon cycle. In accounting for the sources and sinks of carbon dioxide produced at the earth's surface, it has been postulated that most of the unbalanced sources can be identified with the earth's biomass and not so much with man's combustion of fossil fuels (Ecol. Monogr., 53, 235, 1983). New figures on the calculated areas of tropical forests suggest othe
ISSN:0002-8606
DOI:10.1029/EO065i017p00326-03
年代:1984
数据来源: WILEY
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6. |
William L. Chameides: New JGR editor |
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Eos, Transactions American Geophysical Union,
Volume 65,
Issue 17,
1984,
Page 328-328
Barbara T. Richman,
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摘要:
Maintaining high quality of papers while decreasing review time is among the goals set byJournal of Geophysical Researcheditor William L. Chameides, associate professor at the Georgia Institute of Technology's School of Geophysical Sciences. On January 1 Chameides officially began his 4‐year term as editor of the section of the journal that emphasizes atmospheric chemistry and physics. He succeeds Ralph J. Cicerone.Chameides says he will follow in Cicerone's tradition by maintaining the high quality of the journal and the broad scope of papers published relating to atmospheric science. He hopes to broaden further the journal's scope by incorporating more multidisciplinary papers. Increasingly, atmospheric scientists are becoming concerned with problems relating to biogeochemical cycles, global pollution and climate, global habitability, cloud physics, and acid rain, Chameides explained. The solutions to these problems, he added, will require the collaboration of scientists with capabilities in a wide variety of disciplines. It is Chameides' hope that JGR will serve as a forum for the exchange of ideas and new findings among this broad and multidisciplinary community of scientist
ISSN:0002-8606
DOI:10.1029/EO065i017p00328-01
年代:1984
数据来源: WILEY
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