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1. |
The EMSLAB Electromagnetic Sounding Experiment |
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Eos, Transactions American Geophysical Union,
Volume 69,
Issue 7,
1988,
Page 89-99
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摘要:
EMSLAB (Electromagnetic Sounding of the Lithosphere and Beyond)—Juan de Fuca is the largest electromagnetic (EM) induction experiment ever carried out. The two general objectives are to investigate the electrical structure of the lithosphere and asthenosphere beneath a complete oceanic plate and the adjacent continent under which it is subducted and to study tidal, mesoscale eddy, and other large‐scale oceanic motions by measuring the electric currents induced in seawater as it moves in the geomagnetic field. More than 40 scientists, from 18 university and government institutions in the United States, Canada, Japan, Mexico, and Australia, are taking p
ISSN:0002-8606
DOI:10.1029/88EO00060
年代:1988
数据来源: WILEY
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2. |
Streamflows in western states lowest in over a decade |
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Eos, Transactions American Geophysical Union,
Volume 69,
Issue 7,
1988,
Page 90-90
Larry L. Hubbard,
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摘要:
In 1987, the western United States experienced the lowest streamflows since the 1977 drought. Provisional data indicate that summer flows in southern Idaho were the lowest ever recorded for that time of year, and in western Washington flows were the lowest in 40 years.Severe water shortages occurred only in localized areas that were without adequate reservoir storage. In much of the west, storage levels in reservoirs at the beginning of the 1987 water year (October 1, 1986, to September 30, 1987) equaled or exceeded the average for that time of year. The quantity of water in storage and efficient management practices provided an a dequate supply of water for most uses, but some municipalities and other water suppliers instituted either voluntary or mandatory use restrictions.
ISSN:0002-8606
DOI:10.1029/88EO00064
年代:1988
数据来源: WILEY
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3. |
Gondawana Six: Structure, Tectonics, and Geophysics Gondwana Six: Stratigraphy, Sedimentology, and Paleontology |
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Eos, Transactions American Geophysical Union,
Volume 69,
Issue 7,
1988,
Page 91-93
Garry D. Mckenzie,
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摘要:
Twenty‐one years ago, the first Gondwana Symposium was held in Buenos Aires, Argentina. Since then, five more symposia have explored many aspects of Gondwana geoscience. The sixth symposium, held in Columbus, Ohio, August 19–23, 1985, was the first outside of the southern hemisphere. Many of the papers presented at that symposium appear in this two‐volume set, and as was the case with papers presented at the meeting, almost half of the material covers Antarctic problems. This is not unexpected, given the location of the meeting, in the United States at the Institute of Polar Studies (now known as the Byrd Polar Research Center) at the Ohio State University. Many U.S. scientists working on Gondwana problems do so in Antarctica as part of the U.S. Antarctic Research P
ISSN:0002-8606
DOI:10.1029/88EO00067
年代:1988
数据来源: WILEY
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4. |
1987 Robert E. Horton Award to Thomas Dunne |
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Eos, Transactions American Geophysical Union,
Volume 69,
Issue 7,
1988,
Page 96-97
Thomas Dunne,
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摘要:
Robert Horton demonstrated in his seminal 1945 paper that physically based quantitative models for landscape evolution can be constructed by using predicted overland flow in a sediment transport equation for sheetwash. He envisioned drainage network evolution by infiltration‐limited overland flow as a process of channel incision, network growth, and then abstraction to a stable channel network fed by hillslopes too short for channel initiation. Not until the work of Tom Dunne in the late 1960s in the Sleepers River watershed, Vermont, was it realized that overland flow, and consequently hillslope evolution, could occur by an entirely different mechanism than that proposed by Horton. Dunne showed that in certain predictable zones of the landscape, exfiltration from saturated grounds adds to precipitation on the soil surface to form what he later called saturation overland flow. Many researchers have since found that this form of overland flow occurs in humid and semiarid landscapes throughout the world. So clear is Dunne's contribution to defining this process that some refer to it as the “Dunne mechanism” to distinguish it from “Horton overland flow.” His work also documented unquestionably the applicability of the partial area concept in explaining runoff generation. Because of this work, his research in snowmelt runoff, and his subsequent authorship with Luna Leopold of the widely used book entitled Water in Environmental Planning, Dunne has established himself as a leader of process
ISSN:0002-8606
DOI:10.1029/88EO00068
年代:1988
数据来源: WILEY
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5. |
Fulbright Awards for 1989”1990 open |
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Eos, Transactions American Geophysical Union,
Volume 69,
Issue 7,
1988,
Page 100-100
Anonymous,
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PDF (147KB)
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摘要:
More than 1000 Fulbright Fellowships will be awarded for study by U.S. citizens around the world in 1989–1990, the Council for International Exchange of Scholars (CIES) announced January 29, 1988.The grants are given for research and university‐based lecturing in a wide variety of disciplines and to scholars of all kinds, including retired faculty and independent researchers. The basic requirements are a Ph.D. or similar credentials, university or college teaching experience, and, if necessary, foreign language proficie
ISSN:0002-8606
DOI:10.1029/EO069i007p00100-01
年代:1988
数据来源: WILEY
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