Preprints
https://doi.org/10.5194/essd-2023-454
https://doi.org/10.5194/essd-2023-454
17 Jan 2024
 | 17 Jan 2024
Status: this preprint is currently under review for the journal ESSD.

Multifrequency radar observations of marine clouds during the EPCAPE campaign

Juan M. Socuellamos, Raquel Rodriguez Monje, Matthew D. Lebsock, Ken B. Cooper, Robert M. Beauchamp, and Arturo Umeyama

Abstract. The Eastern Pacific Cloud Aerosol Precipitation Experiment (EPCAPE) is a year-round campaign conducted by the US Department of Energy at the Scripps Oceanographic Institute in La Jolla, CA, USA, with a focus on characterizing atmospheric processes at a coastal location. A new Ka, W and G-band (35.75, 94.88 and 238.8 GHz) profiling atmospheric radar, named CloudCube, and developed at the Jet Propulsion Laboratory, took part in the experiment during six weeks in March and April, 2023. This article describes the unique data sets that were obtained during the field campaign from a variety of marine clouds and light precipitation. These are, to the best of the authors’ knowledge, the first observations of atmospheric clouds using simultaneous multifrequency measurements including 238.8 GHz. These data sets therefore provide an exceptional opportunity to study and analyze hydrometeors with diameters in the millimeter and submillimeter size range, that can be used to better understand cloud and precipitation structure, formation, and evolution. The data sets referenced in this article are intended to provide a complete, extensive and high-quality collection of G-band data, in the form of reflectivity and Doppler velocity profiles. In addition, Ka and W-band reflectivity and Ka, W and G-band reflectivity ratio profiles are included for several cases of interest. The data sets can be found at https://doi.org/10.5281/zenodo.10076228 (Socuellamos et al., 2023a).

Juan M. Socuellamos, Raquel Rodriguez Monje, Matthew D. Lebsock, Ken B. Cooper, Robert M. Beauchamp, and Arturo Umeyama

Status: open (until 10 Apr 2024)

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  • RC1: 'Comment on essd-2023-454', Anonymous Referee #1, 28 Feb 2024 reply
Juan M. Socuellamos, Raquel Rodriguez Monje, Matthew D. Lebsock, Ken B. Cooper, Robert M. Beauchamp, and Arturo Umeyama

Data sets

Ka, W and G-band observations of clouds and light precipitation during the EPCAPE campaign in March and April 2023 J. M. Socuellamos et al. https://doi.org/10.5281/zenodo.10076228

Juan M. Socuellamos, Raquel Rodriguez Monje, Matthew D. Lebsock, Ken B. Cooper, Robert M. Beauchamp, and Arturo Umeyama

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Short summary
This paper describes multifrequency radar observations of clouds and precipitation during the EPCAPE campaign. The data sets were obtained from CloudCube, a Ka, W and G-band atmospheric profiling radar, to demonstrate synergies between multifrequency retrievals. This data collection provides a unique opportunity to study hydrometeors with diameters in the millimeter and submillimeter size range, that can be used to better understand the drop size and distribution within clouds and precipitation.
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