Articles | Volume 23, issue 19
https://doi.org/10.5194/acp-23-12671-2023
https://doi.org/10.5194/acp-23-12671-2023
Research article
 | 
11 Oct 2023
Research article |  | 11 Oct 2023

Sub-cloud rain evaporation in the North Atlantic winter trade winds derived by pairing isotopic data with a bin-resolved microphysical model

Mampi Sarkar, Adriana Bailey, Peter Blossey, Simon P. de Szoeke, David Noone, Estefanía Quiñones Meléndez, Mason D. Leandro, and Patrick Y. Chuang

Data sets

ATOMIC aircraft AXBT: Subsurface ocean temperature measurements from Airborne eXpendable BathyThermographs (AXBT) deployed from N43 aircraft, Barbados: Atlantic Tradewind Ocean- Atmosphere Mesoscale Interaction Campaign 2020-01-19 to 2020-02-11 (NCEI Accession 0220436) NOAA Physical Sciences Laboratory https://doi.org/10.25921/pe39-sx75

ATOMIC aircraft flight level navigation meteorology: Wind speed, relative humidity, aircraft parameters, and other measurements taken from N43 aircraft in the North Atlantic Ocean, Barbados: Atlantic Tradewind Ocean-Atmosphere Mesoscale Interaction Campai NOAA Physical Sciences Laboratory; NOAA Office of Aviation Operations https://doi.org/10.25921/7jf5-wv54

ATOMIC aircraft water vapor isotopic analyzer: Humidity and water vapor isotope ratios from an isotopic analyzer aboard N43 aircraft in the North Atlantic Ocean, Barbados: Atlantic Tradewind Ocean-Atmosphere Mesoscale Interaction Campaign 2020-01-17 to 20 A. Bailey, D. Henze, and D. Noone https://doi.org/10.25921/c5yx-7w2

ATOMIC aircraft microphysics: Size-resolved cloud and aerosol number concentrations taken from N43 aircraft in the North Atlantic Ocean, Barbados: Atlantic Tradewind Ocean- Atmosphere Mesoscale Interaction Campaign 2020-01-31 to 2020-02-10 (NCEI Accession M. Leandro and P. Chuang https://doi.org/10.25921/vwvq-5015

ATOMIC aircraft W-band radar: Reflectivity, Doppler velocity, and spectral width taken from W-band radar abouard N43 aircraft in the North Atlantic Ocean, Barbados: Atlantic Tradewind Ocean-Atmosphere Mesoscale Interaction Campaign 2020-01-17 to 2020-02-1 NOAA Physical Sciences Laboratory https://doi.org/10.25921/n1hc-dc30

ATOMIC ship rain sampler: Rainwater isotope ratios from samples taken aboard NOAA Ship Ronald H. Brown in the North Atlantic Ocean, near Barbados: Atlantic Tradewind Ocean-Atmosphere Mesoscale Interaction Campaign 2020-01-05 to 2020-02-11 (NCEI Accession E. Quiñones Meléndez, S. de Szoeke, and D. Noone https://doi.org/10.25921/bbje-6y41

ATOMIC ship disdrometer: Rain rate, rain accumulation, raindrop count, and equivalent radar reflectivity from disdrometer aboard NOAA Ship Ronald H. Brown in the North Atlantic Ocean, near Barbados, at the native time resolution of 10 seconds: Atlantic Tr P. Zuidema https://doi.org/10.25921/pfgy-7530

ATOMIC ship ceilometer: Cloud base height and vertical profiles of visible light backscattered from aerosols and clouds in the atmospheric boundary layer estimated from a vertically-pointing lidar remote sensing instrument aboard NOAA Ship Ronald H. Brown E. Thompson, C. Fairall, S. Pezoa, and L. Bariteau https://doi.org/10.25921/jbz6-e918

Calibrated stable water isotope data in precipitation from the BCO during EUREC4A L. Villiger, B. Herbstritt, M. Ringel, M. Stolla, M. Mech, F. Jansen, and F. Aemisegger https://doi.org/10.25326/242

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Short summary
We study rain evaporation characteristics below shallow cumulus clouds over the North Atlantic Ocean by pairing isotope observations with a microphysical model. The modeled fraction of rain mass that evaporates below the cloud strongly depends on the raindrop size and distribution width. Moreover, the higher the rain mass fraction evaporated, the greater the change in deuterium excess. In this way, rain evaporation could be studied independently using only isotope and microphysical observations.
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