摘要:

I am writing in reference to the recent AGU meeting I attended in Miami.I am quite upset about people submitting abstracts and not showing up to present the papers. It is particularly irritating that the same people are annually guilty of this offense. I went specifically to hear a talk during the earthquake prediction session 2, and for the second year in a row the same person failed to show up to give his talk. He also failed even to notify the session chairmen that his paper was not going to be given. I don't believe that this is an isolated incident.

ISSN:0002-8606    

DOI:10.1029/EO059i009p00834-01

年代:1978

数据来源: WILEY

摘要:

The role of AGU in areas of social concern and political activity is an evolving one. Most of us probably have mixed feelings as to whether AGU should be involved in these matters at all. On the one hand, many of us would prefer to keep science and politics as separate as possible. On the other, we would like to be effective in matters that concern our futures as scientists and human beings. Moreover, we're aware that different scientific societies have opted for vastly different levels of involvement from political activism to disengagement, so our range of options is quite broad. What kind of a ‘political’ organization do we want AGU to

ISSN:0002-8606    

DOI:10.1029/EO059i009p00835

年代:1978

数据来源: WILEY

摘要:

In the history of science, the theory of plate tectonics is so recent that one might expect that the details of its development would be unequivocally documented. Strangely, they are not. A number of books, a recent special AGU session, and countless articles have tried to follow the thread that captured all those ephemeral sparks of insight in a working theory. There are still almost as many views of how it happened as there are scientists involved (see Figure 1).

ISSN:0002-8606    

DOI:10.1029/EO059i009p00836

年代:1978

数据来源: WILEY

摘要:

The launch of Geos 3 on April 9, 1975, by the U.S. National Aeronautics and Space Administration (NASA) represented the first step toward the goal of ocean surface remote sensing from space. Microwave radars and radiometers orbiting aboard a network of unmanned satellites are expected ultimately to offer an all‐weather capability for routinely monitoring sea state, ocean surface topography, temperature, currents, and (indirectly) surface winds on a global scale. The availability of such data in real time should produce a quantum increase in the quality of long‐term weather forecasts, as well as provide needed information for the efficient and safe conduct of burgeoning maritime operations.Geos 3 is the first unmanned satellite to carry a radar system for observations of the sea. In particular, it carries a microwave short‐pulse altimeter capable of measuring rms ocean wave height along its nadir track. Although the instrument can measure other quantities of geodetic and oceanographic interest (such as the instantaneous mean sea level from which currents and geoidal features can be extracted), we consider here only the measurement of sea wave height; this is without a doubt the most important single parameter characterizing that general but often used term, ‘sea state.’ The mathematical model and physical principles describing the sea echo have been understood for years. This paper, however, presents some of the first wave height plots made from a spacecraft radar. These wave height plots are shown versus distance along the satellite track; they agree reasonably well with ocean wave hindcasts and laser profilometer measurements of wave height, the errors being consistent with system resolution and internal and tracking l

ISSN:0002-8606    

DOI:10.1029/EO059i009p00843

年代:1978

数据来源: WILEY

摘要:

Heliohistory experts are meeting at the High Altitude Observatory (HAO) this month to explore ways to recover the history of solar variability from indirect data. The organizing committee sought scientific participation from a variety of disciplines, including geophysics, geochemistry, and dendrochronology. The 40 selected participants will be looking at the indirect evidence of the sun's past behavior, especially during the Quaternary period, or since the last ice age (approximately 20,000 years ago).Indirect, or ‘proxy,’ evidence includes auroral and geomagnetic records and evidence from isotopes found in meteorites. Isotopic abundances and flare particle tracks in moon rocks have also been useful. Other indirect evidence is provided by observations of comet tails and of changes in the brightness of the moon at eclipse, of the planets, and of zodiacal light. The best secondary evidence is provided by the radiocarbon abundances derived from tree rings. Other secondary evidence may be found in ice cores taken from the earth's Polar Regions. A knowledge of terrestrial paleoclimate establishes bounds on solar change. Finally, the history of the sun can be deduced from observations of other stars of solar t

ISSN:0002-8606    

DOI:10.1029/EO059i009p00848-01

年代:1978

数据来源: WILEY

摘要:

To mark the contributions to geodesy by Brigadier G. Bomford, formerly head of the Department of Surveying and Geodesy of the University of Oxford, chairman of the Geodesy Subcommittee of the Royal Society's British National Committee for Geodesy and Geophysics, and President of the International Association of Geodesy from 1963 to 1967, the IAG has agreed to the inauguration of a Guy Bomford Prize for distinguished contributions to geodesy. The prize is awarded at intervals of four years on the occasion of the Assembly of the International Association of Geodesy during the General Assembly of the International Union of Geodesy and Geophysics.The Guy Bomford Prize is awarded to a young scientist (defined as being under 40 years of age on December 31 of the year preceding the Assembly at which the award is made) for outstanding individual contributions to geodetic studies, particularly in the four‐year period preceding the General Assembly at which the award is made. Exceptionally, the prize may be shared between two or more young scientists who have been jointly responsible for a particular geodetic stud

ISSN:0002-8606    

DOI:10.1029/EO059i009p00849-01

年代:1978

数据来源: WILEY

ISSN:0002-8606    

DOI:10.1029/EO059i009p00850-01

年代:1978

数据来源: WILEY

ISSN:0002-8606    

DOI:10.1029/EO059i009p00852

年代:1978

数据来源: WILEY

摘要:

J. Christopher Bernabo has been selected as the 1978–1979 AGU Congressional Science Fellow. He will serve one year on Capitol Hill beginning in September. The AGU is one of ten societies that support Fellows under the auspices of the American Association for the Advancement of Science Congressional Science and Engineering Fellow Program. The program is designed to involve the Fellow in the making of public policy within Congress by working either on the staff of a member of Congress, for a congressional committee, or in some other area of Congress. Dr. Bernabo has spent the past year investigating climatic change while serving as a National Research Council Resident Research Associate at the National Oceanic and Atmospheric Administratio

ISSN:0002-8606    

DOI:10.1029/EO059i009p00868-01

年代:1978

数据来源: WILEY

ISSN:0002-8606    

DOI:10.1029/EO059i009p00879

年代:1978

数据来源: WILEY