The Global Hydrology Resource Center (GHRC) has published three Global Precipitation Measurement (GPM) Ground Validation datasets from the Integrated Precipitation and Hydrology EXperiment (IPHEX) field campaign held in North Carolina from May 1, 2014 through June 14, 2014. These include the Autonomous Parsivel Unit (APU), the Conical Scanning Millimeter-wave Imaging Radiometer (CoSMIR) and version 2 of the Advanced Microwave Precipitation Radiometer (AMPR). The IPHEX Parsivel dataset additionally includes drop size and distribution measurements from October and November 2013. The CoSMIR data contains well-calibrated radiometric data from 9 channels between 50 and 183 GHz with accuracy on the order of +-1K. All channels besides the 89 and 165.5 GHz are horizontally polarized. Version 2 of the AMPR data has been enhanced to provide field of view water fractions and a quality control metric in addition to the brightness temperatures from version 1.
