摘要:

Six years have passed since L.W. Alvarez and his colleagues presented evidence suggesting that a 10‐km asteroid had struck the earth 65 million years ago and created a global dust cloud that suppressed photosynthesis and led to the extinctions associated with the Cretaceous/Tertiary (K/T) boundary [Alvarez et al., 1980]. Their evidence was anomalous amounts of iridium and other siderophile elements at K/T sections in Italy, Denmark, and New Zealand. Since then, the single asteroid impact hypothesis has evolved into a hypothesis of periodic comet showers, each shower consisting of several cometary impacts over a 1–2‐million‐yr period, to explain not only the K/T but the Eocene/Oligocene (E/O) as well as other extinction events recorded throughout the Phanerozoic [Davis et al., 1984;Hut et al.

ISSN:0002-8606    

DOI:10.1029/EO067i033p00633

年代:1986

数据来源: WILEY

摘要:

This issue marks the inaugural of the SPR News section, which is joining The Oceanography Report, Water‐Watch, The VGP News, and the Mineal Physics News as section reports. Like those reports, we will bring together news particularly of interest to the AGU solar‐planetary relations (SPR) membership. Our first news item of that typed is a report from the outgoing SPR President, George Reid. A report from our incoming President, Bob Helliwell, will follow in the next issue, and one from our President‐Elect, Chris Russell, in the issue foll

ISSN:0002-8606    

DOI:10.1029/EO067i033p00634-01

年代:1986

数据来源: WILEY

摘要:

The Space Science Board (SSB) of the National Research Council was established in 1958 (just before the establishment of the National Aeronautics and Space Administration (NASA)) to provide policy advice to the space agency on the conduct of space science. The board discharges this function through several committees composed of working scientists in each area of space science who work closely with NASA personnel to develop plans for future space research. One such committee is the Committee on Solar and Space Physics (CSSP), whose purview ranges from the sun through the interplanetary medium and the magnetospheres, ionospheres, and upper atmospheres of the earth, the planets, and comets. I have had the privilege of serving as chairman of the CSSP from 1983 through 1986, and along with my 18 colleagues, I did my best to represent Solar and Space Physics and the concerns of the community to our colleagues in other disciplines, to NASA, to other agencies of the federal government, and to Congress.

ISSN:0002-8606    

DOI:10.1029/EO067i033p00635-01

年代:1986

数据来源: WILEY

摘要:

A neverending issue within the funding agencies is that of program priorities. At the National Science Foundation (NSF) this has assumed greater importance for several reasons, not the least of which is the central thrust of the GEO directorate (Global Geosciences). Under this broad title the fiscal year (FY) 1987 budget includes increases for studies of global oceanic and atmospheric circulation, biogeochemical fluxes, tropospheric chemistry, and solid earth behavior. The intent is to expand this list in FY 1988 and beyond.

ISSN:0002-8606    

DOI:10.1029/EO067i033p00636

年代:1986

数据来源: WILEY

摘要:

Although it passed through the congressional authorization process unscathed, the budget request for the National Science Foundation (NSF) for fiscal year (FY) 1987 was dealt a serious blow on July 23, 1986, when a House appropriations subcommittee recommended that nearly $146 million be cut from the agency's request for “research and related activities” (R&RA). The full House Appropriations Committee went on to endorse this recommendation on July 31.The committee report accompanying the House appropriation bill leaves the distribution of cuts within R&RA up to the discretion of the NSF director. The report does, however, protect the budget request for the ocean drilling program from a

ISSN:0002-8606    

DOI:10.1029/EO067i033p00637

年代:1986

数据来源: WILEY

摘要:

The number of interested responses to the news update item about this event (Eos, June 24, 1986, p. 537) led to the rapid organization of this special session. We will try to arrange for authors of the selected poster papers to give short talks about their work at the start of the session in an area near the posters. Suggestions about how to conduct this session, as well as contributed papers, will be appreciated. For more information on the session, contact Mary Hudson (Dartmouth College, Hanover, N.H.; telephone: 603‐646‐ 2976), Steve Lund (University of Southern California, Los Angeles; telephone: 213‐743‐7015), or Joe Allen (National Oceanic and Atmospheric Administration (NOAA), Boulder, Colo.; telephone: 303‐

ISSN:0002-8606    

DOI:10.1029/EO067i033p00639

年代:1986

数据来源: WILEY