Russell B. auteur aut IRD Williams E. R. auteur aut IRD Gosset Marielle auteur aut IRD Cazenave Frédéric auteur aut IRD Descroix Luc auteur aut IRD Guy N. auteur aut IRD Lebel Thierry auteur aut IRD Ali A. auteur aut IRD Metayer F. auteur aut IRD Quantin G. auteur aut IRD text journalArticle eng text/pdf born digital access Massachusetts Institute of Technology C-band observations are integrated with rainfall measurements from an extensive network of gauges in Niamey. Niger. West Africa. for the African Monsoon and Multidisciplinary Analysis (AMMA) The large number of gauges available enabled Z(e) - R power-law relationships for the convective and stratiform regions of individual squall lines The Z(e) - R relationships based solely on radar measurements directly vet the gauges were developed for the estimate of rainfall and attendant latent heat release (by other AMMA investigators) where gauges were unavailable The low prefactor values of the Z(e) - R power laws relative to like values for Z - R disdrometer power laws have contributions of order 1-2 dB from the use of the lowest beam tilt (0 57 degrees) and similar to 1-2 dB by the radar reading low (The sphere calibration and die Tropical Rainfall Measuring Mission TRMM - radar calibration me inconsistent at the 1-2 dB level for unknown reasons) Radar/gauge comparisons are also shown lot individual storms Accurate, unbiased results for the convective regime require adjustment of the radar-to-gauge radials for attenuation Beam filling problems and aliasing issues can often be identified in the case of out points Copyright (C) 2010 Royal Meteorological Society specialized C-band radar rainfall Z(e) - R relation attenuation 021 032 136 s1 289-303 2010 0035-9009 https://www.documentation.ird.fr/hor/fdi:010049452 10.1002/qj.548 0035-9009 [F B010049452] https://www.documentation.ird.fr/hor/fdi:010049452 https://www.documentation.ird.fr/intranet/publi/2010/05/010049452.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2010-06-02 2017-08-23 fdi:010049452 fre