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1. |
Sea level variations: Monitoring the breath of the Pacific |
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Eos, Transactions American Geophysical Union,
Volume 60,
Issue 3,
1979,
Page 25-27
Klaus Wyrtki,
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PDF (563KB)
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摘要:
The growing Interest in the changes of our environment and in short‐term climatic fluctuations, together with the realization that the interaction between ocean and atmosphere plays a significant role in the sefluctuations, has emphasized the need to monitor changes in the ocean environment. The two parameters central to the role of the ocean in its interaction with the atmosphere are ocean heat storage and advection of heat by ocean circulation. The ocean's heat content can be easily observed by vertical temperature soundings with relatively in expensive instrumentation, but the determination of heat advection constitutes a much more for midable problem. Continuous direct observations of the flow field are extremely expensive; thus indirect methods like the computation of geostrophic flow and measurements of sea surface topography will have to be used. After all, every long‐term monitoring system will have to pass the test of cost efficiency. In this article I describe the concept of an ocean monitoring system using simple sea level gauges then demons trate its potential and present initial results derived from
ISSN:0002-8606
DOI:10.1029/EO060i003p00025
年代:1979
数据来源: WILEY
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2. |
Recent changes in the Chinese intellectual community and oceanographic exchanges |
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Eos, Transactions American Geophysical Union,
Volume 60,
Issue 3,
1979,
Page 26-26
Frank L. Chew,
Katherine L. Chew,
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PDF (236KB)
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摘要:
We are Americans of Chinese ancestry who visited the South China Sea Institute of Oceanography in Tsingtao during a 30‐day trip throughout China in May and June. We also visisted other research and teaching institutions in China. Based on conversations with many teachers and scientists, we will describe some recent changes in the Chinese intellectual community as well as aspects of the organization, facilities, and work being accomplished at the two oceanographic centers.To gain a proper perspective on China's recent rejuvenation of scientific research, one must delve a bit into the role of intellectuals in Chinese history. Chinese intellectuals, such as teachers, scholars, and scientists, have always filled large and special roles. Teachers, such as Confucius, have enjoyed a respect unequaled in anyother culture. Yet despite their prestige and power, intellectuals have, from time to time, been feared and detested. In a head long drive to unify China, the founder of the Ch'in Dynasty (221‐209 B.C.) buried dissident scholars al
ISSN:0002-8606
DOI:10.1029/EO060i003p00026-01
年代:1979
数据来源: WILEY
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3. |
Study links solar flares, atmospheric electricity |
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Eos, Transactions American Geophysical Union,
Volume 60,
Issue 3,
1979,
Page 28-28
Anonymous,
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PDF (1790KB)
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摘要:
Large electrical currents detected over the south pole during a solar flare offer evidence that atmospheric electricity is directly influenced by the sun, according to a National Oceanic and Atmospheric Administration (NOAA) scientist. In contrast to the prevailing ‘global circuit theory,’ which describes how electricity flows from the earth to the atmosphere and back again, the recently analyzed south pole measurements indicate that bursts of energetic particles and radiation from solar flares strengthen the ordinarily weak return current. This would make the sun an important partner in regulating electricity in the global atmosphere. Extrapolated further, NOAA researcher William E. Cobb says it is possible that this increased electrical activity may create more lightning strokes in thunderstorms, which in turn could affect their rain‐producing effic
ISSN:0002-8606
DOI:10.1029/EO060i003p00028-01
年代:1979
数据来源: WILEY
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