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Preprints
https://doi.org/10.5194/essd-2020-127
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-2020-127
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  18 Jun 2020

18 Jun 2020

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A revised version of this preprint was accepted for the journal ESSD and is expected to appear here in due course.

Tropical cyclones vertical structure from GNSS radio occultation: an archive covering the period 2001–2018

Elżbieta Lasota1,2, Andrea K. Steiner3,4, Gottfried Kirchengast3,4, and Riccardo Biondi2 Elżbieta Lasota et al.
  • 1Institute of Geodesy and Geoinformatics, Wrocław University of Environmental and Life Sciences, Wrocław, 50356, Poland
  • 2Dipartimento di Geoscienze, Università degli Studi di Padova, Padua, 35131, Italy
  • 3Wegener Center for Climate and Global Change (WEGC), University of Graz, Graz, 8010, Austria
  • 4Institute for Geophysics, Astrophysics, and Meteorology/Institute of Physics, University of Graz, Graz, 8010, Austria

Abstract. Tropical Cyclones (TC) are natural destructive phenomena, which affect wide tropical and subtropical areas every year. Although the correct prediction of their tracks and intensity has improved over recent years, the knowledge about their structure and development is still insufficient. The Global Navigation Satellite System (GNSS) Radio Occultation (RO) technique can provide a better understanding of the TC because it enables to probe the atmospheric vertical structure with high accuracy, high vertical resolution, and global coverage in any weather conditions. In this work, we create an archive of co-located TC best tracks and RO profiles covering the period 2001–2018 and providing a complete view of the storms since the pre-cyclone status to the cyclone disappearance. We collected 1822 TC best tracks from the International Best Track Archive for Climate Stewardship and co-located them with 48313 RO profiles from seven satellite missions processed by Wegener Center for Climate and Global Change. We provide information about location and intensity of the TC, RO vertical profiles co-located within 3 hours and 500 km from the TC eye centre, and exact information about temporal and spatial distance between the TC centre and the RO mean tangent point. A statistical analysis shows how the archive well covers all the ocean basins and all the intensity categories. We finally demonstrate the application of this dataset to investigate the vertical structure for one TC example case. All the data files, separately for each TC, are publicly available in NetCDF format at https://doi.org/10.25364/WEGC/TC-RO1.0:2020.1 (Lasota et al., 2020).

Elżbieta Lasota et al.

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Elżbieta Lasota et al.

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A comprehensive archive of Tropical cyclones vertical structure covering the period 2001-2018 E. Lasota, A. Steiner, G. Kirchengast, and R. Biondi https://doi.org/10.25364/WEGC/TC-RO1.0:2020.1

Elżbieta Lasota et al.

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Short summary
In this work, we provide a comprehensive archive of Tropical Cyclones vertical structure for the period 2001–2018. The Tropical Cyclones best tracks are co-located in time and space with high vertical resolution atmospheric profiles (temperature, pressure, humidity and refractivity) from Radio Occultations and with climatological profiles. This dataset can be used to analyze the inner vertical thermodynamic structure of Tropical Cyclones and the pre-cyclone environment.
In this work, we provide a comprehensive archive of Tropical Cyclones vertical structure for the...
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