The NASA Global Hydrology Resource Center (GHRC) DAAC published the Micro Rain Radar (MRR) Instrument Micro Article. The MRR instrument is a 24 GHz (K-band) continuous wave radar that derives profiles of drop size distributions and rain parameters from measured spectral power backscatter intensity. The Doppler frequency measures the falling velocity of the rain drops. Since drops with different diameters have different falling velocities the backscattered signal consists of a distribution of different Doppler frequencies, which then infers various drop sizes. The spectral analysis of the received signal yields a power spectrum which is spread over a range of frequency lines corresponding to the Doppler frequencies of the signal. These observations can be used for weather radar signal adjustment, hydrological studies, and nowcasting precipitation events among others. The micro article provides an overview of the MRR instrument and its applications to support GHRC’s current and future MRR datasets. The micro article is available at: https://ghrc.nsstc.nasa.gov/home/micro-articles/instrument-micro-rain-radar-mrrMicro Rain Radar (MRR) instrument Micro Article Published
The NASA Global Hydrology Resource Center (GHRC) DAAC published the Micro Rain Radar (MRR) Instrument Micro Article. The MRR instrument is a 24 GHz (K-band) continuous wave radar that derives profiles of drop size distributions and rain parameters from measured spectral power backscatter intensity. The Doppler frequency measures the falling velocity of the rain drops. Since drops with different diameters have different falling velocities the backscattered signal consists of a distribution of different Doppler frequencies, which then infers various drop sizes. The spectral analysis of the received signal yields a power spectrum which is spread over a range of frequency lines corresponding to the Doppler frequencies of the signal. These observations can be used for weather radar signal adjustment, hydrological studies, and nowcasting precipitation events among others. The micro article provides an overview of the MRR instrument and its applications to support GHRC’s current and future MRR datasets. The micro article is available at: https://ghrc.nsstc.nasa.gov/home/micro-articles/instrument-micro-rain-radar-mrr
