Earth, Planets and Space

, Volume 54, Issue 4, pp 425–430 | Cite as

The impact of atmospheric mountain lee waves on systematic geodetic errors observed using the Global Positioning System

  • Seiichi Shimada
  • Hiromu Seko
  • Hajime Nakamura
  • Kazumasa Aonashi
  • Thomas A. Herring
Open Access


Atmospheric mountain lee waves excited by a strong westerly wind ahead of approaching cold front are shown to have significant effect on GPS positioning. Before the approach of the cold front significant atmospheric gradients caused by the inhomogeneous water vapor are detected at the sites along the east coast of the Izu Peninsula because of a wet atmosphere to the west of these sites. In contrast, the island site 6 km east of the coast detects a strong gradient with the opposite sense. The Geostationary Meteorological Satellite cloud shows rows of the clouds due to mountain lee waves consistent with the GPS measurements. A numerical simulation explains the mountain lee waves. The atmospheric perturbations induce large systematic errors in the estimates of horizontal positions of the sites in the region.


Global Position System Cold Front Precipitable Water Vapor Global Position System Measurement Geographical Survey Institute 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© The Society of Geomagnetism and Earth, Planetary and Space Sciences (SGEPSS); The Seismological Society of Japan; The Volcanological Society of Japan; The Geodetic Society of Japan; The Japanese Society for Planetary Sciences. 2002

Authors and Affiliations

  • Seiichi Shimada
    • 1
  • Hiromu Seko
    • 2
  • Hajime Nakamura
    • 2
  • Kazumasa Aonashi
    • 2
  • Thomas A. Herring
    • 3
  1. 1.National Research Institute for Earth Science and Disaster PreventionTsukuba, IbarakiJapan
  2. 2.Meteorological Research InstituteTsukuba, IbarakiJapan
  3. 3.Department of Earth, Atmospheric and Planetary SciencesMassachusetts Institute of TechnologyCambridgeUSA

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