Geraldine Rangmoen Rimvin
Estimating one-minute rain rate distributions in the Tropics from TRMM satellite data (October 2017)
Rimvin, Geraldine Rangmoen; Paulson, Kevin S.; Bellerby, Timothy
Kevin S. Paulson
Dr Timothy Bellerby T.J.Bellerby@hull.ac.uk
© 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.
|Journal Article Type||Article|
|Publication Date||Oct 1, 2018|
|Publisher||Institute of Electrical and Electronics Engineers|
|Peer Reviewed||Peer Reviewed|
|APA6 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|
|Keywords||Index Terms— rain; rain fade; microwave; propagation; satellite data; spectrum planning; and link budget|
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