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Rise and fall of paleomagnetic research at Carnegie's DTM |
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Eos, Transactions American Geophysical Union,
Volume 71,
Issue 34,
1990,
Page 1043-1044
H. E. LeGrand,
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摘要:
The Department of Terrestrial Magnetism of the Carnegie Institution in Washington, D.C., was established in 1904 to solve two puzzles: the origins of the geomagnetic and the geoelectric fields. For the first, the DTM gathered data on secular variation, magnetic “storms,” and similar phenomena. By the 1930s the program had produced masses of observations but no solutions.Under the leadership of E. A. Johnson and A. G. McNish, DTM in the late 1930s took up a new and promising approach—the use of paleomagnetic results to resolve two major disputes. One centered on the origin of the geomagnetic field; the other, on the possibility of continental drift. By the 1940s DTM had become the preeminent center for research in paleomagnetism. By the late 1950s that research had virtually ceased at DTM. Elsewhere, such a program in the hands of others was by then achieving considerable su
ISSN:0002-8606
DOI:10.1029/EO071i034p01043-01
年代:1990
数据来源: WILEY
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IHP Intergovernmental Council |
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Eos, Transactions American Geophysical Union,
Volume 71,
Issue 34,
1990,
Page 1045-1045
Anonymous,
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PDF (1666KB)
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摘要:
Representatives of 69 countries, five United Nations organizations, and eight international non‐governmental organizations (NGO) met March 19–24, 1990, in Paris, France, at the headquarters of the United Nations Educational, Scientific and Cultural Organization to evaluate and approve projects for the fourth phase of the International Hydrological Program (IHP‐IV), which will be active during 1990–1995. The International Association of Hydrological Sciences was represented by AGU members and IAHS officers Vit Klemes, President, University of Victoria, Victoria, Canada; Henny Colenbrander, Secretary General, TNO, The Hague, The Netherlands; and Ivan Johnson, Honorary President, A. Ivan Johnson, Inc., Arvada, Colo. The International Water Resources Association was represented by AGU member and IWRA Secretary General Glenn Stout, IWRA, Urbana, 111. The U.S. representatives (observer status) were David Rickert, U.S. Geological Survey, Reston, Va., and Glen
ISSN:0002-8606
DOI:10.1029/EO071i034p01045
年代:1990
数据来源: WILEY
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