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Recent Advances in the Study of Stratospheric Wave Activity Using COSMIC and CHAMP GPS-RO

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New Horizons in Occultation Research

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Abstract

Gravity (buoyancy) waves are mainly generated in the lower atmosphere and propagate upwards, transporting energy and momentum. They must be characterized and parameterized in models because their cumulative effect on the atmosphere is important. GPS Radio Occultation (RO) satellites are able to measure the temporal and spatial evolution of gravity waves with global coverage. COSMIC enables their study at a much higher temporal and spatial resolution than was previously possible, while CHAMP provides a multi-year dataset. New CHAMP and COSMIC gravity wave results are presented here and discussed in both a global and regional scale context.

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Acknowledgements

The COSMIC research was undertaken while one of the authors (SPA) was in receipt of a Japan Society for the Promotion of Sciences (JSPS) post-doctoral fellowship. This study was supported in part by the Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT) through a Grant-in-Aid for Scientific Research (19403009) and the Kyoto University Active Geosphere Investigation (KAGI) for the 21st century COE program. COSMIC data were obtained from the COSMIC Data Analysis and Archive Center (CDAAC). NCEP zonal wind and uninterpolated OLR data used in the study were provided by the NOAA/OAR/ESRL PSD, Boulder, Colorado, USA, from their Web site at http://www.cdc.noaa.gov/. The helpful comments of two anonymous reviewers are gratefully acknowledged.

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Authors and Affiliations

  1. Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Kyoto, Japan

    S.P. Alexander & T. Tsuda

Authors
  1. S.P. Alexander
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  2. T. Tsuda
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Editors and Affiliations

  1. Fak. Naturwissenschaften, Universität Graz, Halbärthgasse 1, Graz, 8010, Austria

    Andrea Steiner

  2. Wegener Zentrum für Klima und, Universität Graz, Leechgasse 25, Graz, 8010, Austria

    Barbara Pirscher

  3. Inst. für Geophysik, Astrophysik und, Universität Graz, Universitätsplatz 5, Graz, 8010, Austria

    Ulrich Foelsche

  4. Inst. für Geophysik, Astrophysik und, Universität Graz, Universitätsplatz 5, Graz, 8010, Austria

    Gottfried Kirchengast

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© 2009 Springer-Verlag Berlin Heidelberg

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Alexander, S., Tsuda, T. (2009). Recent Advances in the Study of Stratospheric Wave Activity Using COSMIC and CHAMP GPS-RO. In: Steiner, A., Pirscher, B., Foelsche, U., Kirchengast, G. (eds) New Horizons in Occultation Research. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-00321-9_12

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