GPM Ground Validation Micro Rain Radar (MRR) MC3 Dataset Restriction/Disclaimer: MRR levels 1 and 2 data products assume no vertical wind, and thus their accuracy is questionable in the presence of strong vertical motions (Peters et al. 2005). Attenuation correction is only performed for PIA ≤ 10 dB (Peters et al. 2010). Peters, Gerhard, Bernd Fischer, Hans Münster, Marco Clemens, Andreas Wagner, 2005: Profiles of Raindrop Size Distributions as Retrieved by Microrain Radars. J. Appl. Meteor., 44, 1930–1949. doi: http://dx.doi.org/10.1175/JAM2316.1 Peters, Gerhard, Bernd Fischer, Marco Clemens, 2010: Rain Attenuation of Radar Echoes Considering Finite-Range Resolution and Using Drop Size Distributions. J. Atmos. Oceanic Technol., 27, 829–842. doi: http://dx.doi.org/10.1175/2009JTECHA1342.1 October 19, 2012.