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1. |
GPS measurements to constrain geodynamic processes in Fennoscandia |
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Eos, Transactions American Geophysical Union,
Volume 77,
Issue 35,
1996,
Page 337-341
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摘要:
Investigators are acquiring and interpreting data from continuous Global Positioning System (GPS) sites (Figures 1, 2) in Fennoscandia as part of project BIFROST (Baseline Inferences for Fennoscandian Rebound Observations, Sea level, and Tectonics). The ultimate goals of BIFROST are to use the GPS determinations of three‐dimensional crustal velocities associated with glacial isostatic adjustment [e.g.,James and Lambert, 1993;Mitrovica et al., 1993, 1994b] to estimate the viscosity of the Earth's mantle below Fennoscandia, to constrain the space‐time history of the Late Pleistocene ice load in the region, and to correct the extensive Fennoscandian tide gauge record for the influence of vertical motions. Already, with less than 3 years of continuous GPS data, the determinations of vertical motion are precise enough to observe the broad pattern of postglacial uplift in this reg
ISSN:0002-8606
DOI:10.1029/96EO00233
年代:1996
数据来源: WILEY
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2. |
Cracked cue ball |
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Eos, Transactions American Geophysical Union,
Volume 77,
Issue 35,
1996,
Page 338-338
Michael Carlowicz,
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摘要:
The latest images sent by the Galileo spacecraft reveal that the surface of Jupiter's moon Europa may have contained a layer of “warm ice” or even liquid water. In fact, planetologists are wondering if perhaps it still does.Photos taken earlier this summer show Europa to have a crust of smooth white and brown‐tinted ice scarred by long, jagged cracks; some scientists have said the moon looks like a cracked cue ball. “The scale of fracture patterns—extending a distance equivalent to the width of the western United States—dwarf the San Andreas fault in length and width,” said Ronald Greeley, a geologist from Arizona State University and a member of the Galileo imaging team. The cracks are believed to have been caused by the stress of tidal forces created by Jupiter's gravity. Warmth generated by tidal heating also may have been sufficient to soften or liquefy so
ISSN:0002-8606
DOI:10.1029/EO077i035p00338-01
年代:1996
数据来源: WILEY
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3. |
Public knows the value of science, but not the meaning |
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Eos, Transactions American Geophysical Union,
Volume 77,
Issue 35,
1996,
Page 339-339
MichaelMichael Carlowicz,
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摘要:
The first of two parts in a series.Americans love science, they just don't necessarily understand it. That is the message ofScience&Engineering Indicators 1996, a compendium of statistics on science funding, education, and public attitudes toward science. The report was researched and drafted under the guidance of the National Science Board of the National Science Foundation (NSF).
ISSN:0002-8606
DOI:10.1029/EO077i035p00339-01
年代:1996
数据来源: WILEY
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4. |
Watershed Hydrology, 2nd Edition |
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Eos, Transactions American Geophysical Union,
Volume 77,
Issue 35,
1996,
Page 340-340
Hugo A. Loaiciga,
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PDF (124KB)
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摘要:
Watershed Hydrology, 2nd editionis based on a fundamental precept: “What occurs in the stream cannot be considered independently of what occurs on the watershed.” This book is definitely of an introductory nature. It does an excellent job in explaining the “why” of watershed hydrology, but it is not the place to look for “how” to apply hydrologic theory for the purpose of watershed management. It is in this aspect that this book departs most radically from the many books about engineering hydrology that are on
ISSN:0002-8606
DOI:10.1029/EO077i035p00340
年代:1996
数据来源: WILEY
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