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LTCS: The Lower Thermosphere Coupling Study of the CEDAR and WITS Programs, an attempt to better understand the “Ignorosphere” |
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Eos, Transactions American Geophysical Union,
Volume 70,
Issue 42,
1989,
Page 905-905
Jeffrey M. Forbes,
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PDF (378KB)
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摘要:
The atmospheric region extending from the temperature minimum at the tropopause, at about 18 km, to the mesopause (and sometimes higher, depending on context and author) is commonly referred to as the middle atmosphere. It is inaccessible to the large majority of meteorological rockets and satellites. Interactions there are complex and hard to model realistically. The region is so difficult to study that it has affectionately and sometimes despairingly become known as the “ignorosphere.”The mesopause is the temperature minimum occurring in Earth's atmosphere near 90 km and represents the boundary between the mesosphere and thermosphere. The mesosphere lies at 50–90 km altitude and has a negative temperature gradient; the thermosphere lies above 90 km and has a positive temperature gradient (see Figure 1). The thermal and dynamical structure of the region around the mesopause, extending for present purposes from about 80 km to 150 km, is characterized by a diversity of physical processes that dynamically and energetically couple the middle and upper atmos
ISSN:0002-8606
DOI:10.1029/89EO00322
年代:1989
数据来源: WILEY
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Hubble Space Telescope arrives |
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Eos, Transactions American Geophysical Union,
Volume 70,
Issue 42,
1989,
Page 906-906
Anonymous,
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PDF (147KB)
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摘要:
After a secret transcontinental flight, NASA's Hubble Space Telescope has arrived at the Kennedy Space Center at Cape Canaveral, Fla., where it will be tested in preparation for a March 26, 1990, launch aboard the space shuttle Discovery.The telescope was gingerly transferred from a Lockheed plant in California, where it was assembled, to Florida on an Air Force C‐5 transport plane. The details of the move were not made public because the Air Force moves around top‐secret spy satellites similar to the HST in much the same way as it did the NASA telesc
ISSN:0002-8606
DOI:10.1029/89EO00323
年代:1989
数据来源: WILEY
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Bacon‐Bercey Scholarship awarded to Hamann |
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Eos, Transactions American Geophysical Union,
Volume 70,
Issue 42,
1989,
Page 911-911
Anonymous,
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PDF (789KB)
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摘要:
Catherine A. Hamann, a graduate student at Iowa State University, has been selected as the recipient of the 1989 June Bacon‐Bercey Scholarship for Women in Atmospheric Sciences. The scholarship, administered by AGU, is provided through a gift from noted meteorologist June Bacon‐Bercey.Hamann received her B.S. in meteorology from Iowa State University and is currently enrolled as a graduate student in the university's atmospheric sciences program. She is currently working on two research projects. The first project, dealing with the effects of seasonal forcing on planetary waves, is a continuation of work she began as an undergraduate. The second project, in the area of regional cyclogenesis and the stability of non‐parallel flow, is also the subject of her t
ISSN:0002-8606
DOI:10.1029/89EO00326
年代:1989
数据来源: WILEY
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