GPS radio occultation technique for measurement of the atmosphere above tropical cyclones

Riccardo Biondi, Torsten Neubert, Stig Syndergaard, Johannes Nielsen

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    Abstract

    Water vapour transport to the upper troposphere (UT) and lower stratosphere (LS) by deep convective storms affects the radiation balance of the atmosphere and has been proposed as an important component of climate change. The aim of the work presented here is to understand if the GPS Radio Occultation (RO) technique applied to a GPS receiver on the International Space Station (ISS) will be useful for characterisation of this process. Our initial assessment presented here, addresses the question if severe storms leave a significant signature in RO profiles in the upper troposphere/lower stratosphere (UT/LS). The result is positive, suggesting that the bending angle of a GPS signal contains interesting information on the atmosphere around the tropopause. The presentation is focused on one particular Tropical Cyclone (TC), the hurricane Bertha, which formed in the Atlantic Basin during July 2008 and reached a maximum intensity of Category 3.
    Original languageEnglish
    Title of host publication2nd International COSPAR Colloquium ­ : Scientific and Fundamental Aspects of the Galileo Programme
    Number of pages6
    Volumewpp 302 Proceeding
    Publication date2009
    Publication statusPublished - 2009
    Event2nd International COSPAR Colloquium - Padua - Italy
    Duration: 1 Jan 2009 → …

    Conference

    Conference2nd International COSPAR Colloquium
    CityPadua - Italy
    Period01/01/2009 → …

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