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Estimating one-minute rain rate distributions in the Tropics from TRMM satellite data (October 2017)

Rimvin, Geraldine Rangmoen; Paulson, Kevin S.; Bellerby, Timothy

Authors

Geraldine Rangmoen Rimvin

Kevin S. Paulson



Abstract

© 2008-2012 IEEE. Internationally recognized prognostic models of rain fade on terrestrial and Earth-space extremely high frequency (EHF) links rely fundamentally on distributions of 1-min rain rates. In Rec. ITU-R P.837-6, these distributions are estimated from the data provided by Numerical Weather Products (NWPs). NWP yields rain accumulations over regions typically larger than 100 km across and over intervals of 6 h. Over the tropics, the Tropical Rain Measuring Mission (TRMM) satellite data yield instantaneous rain rates over regions 5 km across. This paper uses TRMM data to estimate rain rate distributions for telecommunications regulation over the tropics. Rain rate distributions are calculated for each 1° square between 35° south to 35° north. These distributions of instantaneous rain rates over 5 km squares are transformed to distributions over 1 km squares using a correction calculated from U.K. Nimrod radar data. Results are compared to rain distributions in DBSG3, the database of ITU-R Study Group 3. A comparison with the new Rec. ITU-R P.837-7 is also presented. A table of 0.01% exceeded rain rates over the tropics is provided as associated data.

Citation

Rimvin, G. R., Paulson, K. S., & Bellerby, T. (2018). Estimating one-minute rain rate distributions in the Tropics from TRMM satellite data (October 2017). IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 11(10), 3660-3667. https://doi.org/10.1109/JSTARS.2018.2869322

Journal Article Type Article
Acceptance Date Aug 26, 2018
Online Publication Date Sep 27, 2018
Publication Date Oct 1, 2018
Deposit Date Nov 14, 2018
Publicly Available Date Mar 28, 2024
Print ISSN 1939-1404
Electronic ISSN 2151-1535
Publisher Institute of Electrical and Electronics Engineers
Peer Reviewed Peer Reviewed
Volume 11
Issue 10
Pages 3660-3667
DOI https://doi.org/10.1109/JSTARS.2018.2869322
Keywords Index Terms— rain; rain fade; microwave; propagation; satellite data; spectrum planning; and link budget
Public URL https://hull-repository.worktribe.com/output/1005636
Publisher URL https://ieeexplore.ieee.org/document/8474967

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