摘要:

A receiving station for the acquisition and processing of spaceborne synthetic aperture radar (SAR) data is being established by the National Aeronautics and Space Administration (NASA) at the University of Alaska, Fairbanks. The data that will be received from a number of SAR satellites that are to be launched starting in 1990 will allow U.S. researchers to study sea ice, oceanographic and geological features, hydrological processes, glaciers, and vegetation cover in Alaska and its surrounding seas.

ISSN:0002-8606    

DOI:10.1029/EO068i025p00593-01

年代:1987

数据来源: WILEY

摘要:

As summer arrives, the pace of Solar‐Terrestrial (S/T) research quickens with field programs, workshops, conferences, and so on, not to mention the efforts of individuals released from the tyranny of grading. Summer 1986 saw the joint Balloon‐Viking Campaign, led by G. Parks (University of Washington, AK‐50, Room 202, ATG Building, Seattle, WA 98105). Excellent X ray imaging, radar and Viking data were obtained. In a separate effort, W. Heikkila (University of Texas at Dallas, Box 830688, MS F022, Richardson, TX 75083) obtained incoherent scatter radar data in conjunction with Viking passes. Both data sets are now under analysis, and if you have data to contribute and/or wish to participate in the analysis, please contact Parks or Hei

ISSN:0002-8606    

DOI:10.1029/EO068i025p00594-01

年代:1987

数据来源: WILEY

摘要:

Ionospheric researchers will have the opportunity to conduct coordinated radio, radar, and optical observations in conjunction with other space‐based electron beam experiments as part of the upcoming Cooperative High‐Altitude Rocket Gun Experiments (CHARGE) 3 rocket flight in November 1988 at White Sands Missile Range (WSMR, White Sands, N.Mex.). The flight will be particularly interesting because of the high power planned for the electron gun (3.5 kV at 5 A), which is based, in part, on technology developments planned for the successful Excede series of rockets.CHARGE 3 is the third in a series of U.S. flights made in collaboration with investigators from Utah State University (Logan), Stanford University (Stanford, Calif.), the Institute for Space and Astronautical Sciences (Sendai, Japan), and the University of Michigan (Ann Arbor). The general objectives for CHARGE 3 are fourfold:to study vehicle charging and diagnosecontributory effects at higher beam currents and energy,to study ELF/VLF wave generation and propagation from dc and modulated electron beams,to diagnose beam propagation remotely by studying E region ionization and optical excitation, andto investigate voltage and current distribution in an electrically tethered space vehicle system at higher beam curre

ISSN:0002-8606    

DOI:10.1029/EO068i025p00595-01

年代:1987

数据来源: WILEY

摘要:

Organization of a national forum and the development of a scientific plan for studies on global change are among the initiatives that the U.S. Committee on Global Change (CGC) is considering as a way of focusing U.S. efforts to assess anthropogenic changes in the global environment. The committee, which met for the first time at the National Academy of Sciences (NAS) on June 11—12, 1987, set out to determine the status of various national and international programs. The meeting also enabled the National Science Foundation, the National Aeronautics and Space Administration, the National Oceanic and Atmospheric Administration, and other agency representatives to describe their past efforts and future plans and commitments toward a national global change program. Scientific organizations such as AGU and the Smithsonian Institution will probably be invited to take part in such a national forum and in the development of the scientific pla

ISSN:0002-8606    

DOI:10.1029/EO068i025p00597-01

年代:1987

数据来源: WILEY

摘要:

The 1986 Annual Meeting of the Union Geofisica Mexicana (UGM) was held in Morelia, Michoacan, Mexico, during November 9–15, 1986. This annual meeting provides an opportunity for the presentation and discussion of new observations, data, interpretations, etc., in the various research areas of geophysics. It is also intended to bring together geophysicists from government institutions, industry, universities, and research centers, along with researchers from other countries. Since a substantial amount of the geophysical data that is gathered in Mexico remains unpublished or is published in internal reports of restricted circulation, it is important to have such a forum for local and foreign researchers. Many U.S. research groups are presently carrying out studies in Mexico (in seismology, tectonics, economic geology, volcanology, etc.), but their participation in these annual meetings has been very limited. Thus, in addition to giving a brief account of the meeting, we would like to encourage future participation by AGU members and also to announce the availability of material published from the meetings (abstracts with program and a proceedings volume

ISSN:0002-8606    

DOI:10.1029/EO068i025p00599

年代:1987

数据来源: WILEY