Deployment of the C-band radar Poldirad on Barbados during EUREC 4 A

[摘要] The German polarimetric C-band weather radar Poldirad (Polarization Diversity Radar) was deployed for the international field campaign EUREC 4 A(Elucidating the role of clouds–circulation coupling in climate) on the island of Barbados where it was operated from February until August2020. Focus of the installation was monitoring clouds and precipitation in the trade wind region east of Barbados. Different scanning modes wereused with a temporal sequence of 5  min and a maximum range of 375  km . In addition to built-in quality control performed by the radarsignal processor, it was found that the copoloar correlation coefficient ρ HV can be used to remove contamination of radar products bysea clutter. Radar images were available in real time for all campaign participants and aboard research aircraft. Examples of mesoscaleprecipitation patterns, rain rate accumulation, diurnal cycle, and vertical distribution are given to show the potential of the radar measurementsfor further studies on the life cycle of precipitating shallow cumulus clouds and other related aspects. Poldirad data from the EUREC 4 Acampaign are available on the EUREC 4 A AERIS database: https://doi.org/10.25326/218 ( Hagen et al. ,  2021 a ) for raw data and https://doi.org/10.25326/217( Hagen et al. ,  2021 b ) for gridded data.

[学科分类] 眼科学