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Mahdi S. Hantush 1921”1984 |
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Eos, Transactions American Geophysical Union,
Volume 65,
Issue 21,
1984,
Page 361-361
M. U. Ahmad,
G. W. Gross,
M. A. Marino,
S. S. Papadopulos,
Z. A. Saleem,
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摘要:
Mahdi Salih Hantush, Professor of Hydrology at the University of Kuwait, died on January 14, 1984 from complications following heart surgery.A hydrologist, scientist, and great teacher, Mantush specialized in the application of mathematics to the solution of transient groundwater flow problems. His particular expertise in the development of well‐flow equations led the late R.W. Stallman of the U.S. Geological Survey to refer to him as “The Master of Radial Flow.” Hantush's numerous scientific publications contributed greatly to the present theories of flow in leaky aquifers, unconfined aquifers, and anisotropic aquifers. He derived the mathematical equations of flow to fully and/or partially penetrating wells in such aquifer systems, and devised methods for the analysis of pumpingtest data to determine their hydraulic properties. He was not only a researcher, but also a practicing hydrologist, deriving the equations he needed to solve practical pro
ISSN:0002-8606
DOI:10.1029/EO065i021p00361-01
年代:1984
数据来源: WILEY
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2. |
Giacobini‐Zinner re‐sighted |
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Eos, Transactions American Geophysical Union,
Volume 65,
Issue 21,
1984,
Page 362-362
Anonymous,
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摘要:
Comet Giacobini‐Zinner, which will be the target of close‐up investigation by a NASA spacecraft next year, has been sighted for the first time since 1979 by a team of astronomers at Kitt Peak National Observatory in Arizona. The comet was photographed with the 395 cm Mayall Telescope on April 3 by‐George Will and Michael Belton of Kitt Peak and Stanislaus Djorgovski and Hyron Spinrad of the University of California at Berkeley. The earlier than usual sighting and the closeness of the comet to its predicted location (within 4 arc seconds) will help in planning the September 1985 rendezvous by the International Cometary Explorer (ICE) spacecraft.Giacobini‐Zinner is a well‐known comet with an orbital period of 6.5 years, but its motion can be erratic due to outgassing of material from the nucleus. For that reason, John Brandt of the NASA Goddard Space Flight Center, comet scientist for the ICE mission, was “ecstatic” that the comet was resighted so close to its expected position. Mission planners now can proceed with the knowledge that they have a wide margin of propellant for adjusting the spacecraft trajectory prior to the comet encounter. The International Halley Watch, a coordinaed observing network of ground‐based telescopes, will devote time to tracking the comet's path around the time of closest spac
ISSN:0002-8606
DOI:10.1029/EO065i021p00362-05
年代:1984
数据来源: WILEY
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Membership applications received |
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Eos, Transactions American Geophysical Union,
Volume 65,
Issue 21,
1984,
Page 365-365
Anonymous,
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摘要:
Applications for membership have been received from the following individuals. The letter after the name denotes the proposed primary section affiliation.
ISSN:0002-8606
DOI:10.1029/EO065i021p00365-01
年代:1984
数据来源: WILEY
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