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Speak out |
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Eos, Transactions American Geophysical Union,
Volume 74,
Issue 42,
1993,
Page 481-481
Anonymous,
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摘要:
If you want your voice to be heard on this and other matters related to NSF or science, you should write one line, ten lines, or 100 lines to:Jack Gibbons Director Office of Science&Technology Policy Washington, DC 20506
ISSN:0002-8606
DOI:10.1029/EO074i042p00481-02
年代:1993
数据来源: WILEY
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Heavy winter precipitation in southwest Arizona |
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Eos, Transactions American Geophysical Union,
Volume 74,
Issue 42,
1993,
Page 482-485
Nathaniel B. Guttman,
Jung Jin Lee,
James R. Wallis,
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摘要:
During December 1992, according to theWeekly Climate Bulletinof the Climate Analysis Center in Washington, D.C., heavy precipitation inundated parts of Arizona causing more than 400% of normal precipitation to fall in the southwestern part of the state. Heavy precipitation continued to fall during the next 2 months, causing extensive flooding along the Gila River.Phoenix Weather Service Forecast Office monthly storm data reports indicated flooding along the Santa Cruz and San Pedro Rivers on December 29. From January 7 to 20, roads, bridges, homes, businesses, and farmland suffered considerable flood damage from Graham County westward to Yuma County as rivers and streams swelled. Several thousand people were isolated in their homes as flood waters cut off roads. The January storm data report shows that the combination of a northward‐displaced subtropical jet stream, with its abundant moisture supply and associated low pressure disturbances and a southward‐displaced polar jet stream, with its storm track, led to the abnormally wet period from late December to mid‐January. In February, severe flooding was reported in several areas as water rose in the Painted Rock Reservoir; water accumulating behind the dam produced the largest lake in the state. After exceeding the 2.5 million acre‐feet capacity of the reservoir, water began spilling over the dam and damaging homes, crops, farmland, roads, and bridges. About 3,500 residents were evacuated, and the National Guard responded to the flooding with various relief efforts including helicopter support operations. The U.S. and Arizona Departments of Agriculture reported flood damage in excess of $50
ISSN:0002-8606
DOI:10.1029/93EO00399
年代:1993
数据来源: WILEY
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Comment on “Greenhouse cooling of the upper atmosphere” |
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Eos, Transactions American Geophysical Union,
Volume 74,
Issue 42,
1993,
Page 483-484
George W. Platzman,
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摘要:
The vertical distribution of temperature affects most of the atmosphere's wave‐like phenomena and in particular, tides. In “Greenhouse Cooling of the Upper Atmosphere,” which appeared in the February 23, 1993,Eos,R. G. Roble's Figure 1 shows the present profile of temperature versus height and one predicted for the end of the next century from accumulation of greenhouse gases. The predicted profile shows about 10°C warming of the troposphere and cooling of the stratosphere and mesosphere, with maximum cooling, about −20°C, at the stratopause. The implications of this prediction for semidiurnal gravitational tides at the Earth's surface can be assessed qualitatively from dependence of tidal pressure on the two principal vertical modes of response to tidal excitation, namely the Lamb and Peke
ISSN:0002-8606
DOI:10.1029/93EO00375
年代:1993
数据来源: WILEY
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Response |
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Eos, Transactions American Geophysical Union,
Volume 74,
Issue 42,
1993,
Page 484-484
Peter Alexander,
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摘要:
Duhau's paper does indeed put forward one possible alternative for the description of the collisionless heat conduction in the solar wind. Other solutions have also been proposed (e.g.,Hollweg[1976],Scudder[1992]). I believe the matter is still open, and in my review I have chosen to leave it at that, rather than cite any particular proposal to the possible detriment of others. It should be taken into account that it is not possible to cover every topic in detail in a 20‐Kbyte article that deals with 300 years of histor
ISSN:0002-8606
DOI:10.1029/EO074i042p00484-02
年代:1993
数据来源: WILEY
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