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https://doi.org/10.5194/essd-2020-269
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-2020-269
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  29 Sep 2020

29 Sep 2020

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This preprint is currently under review for the journal ESSD.

Atmospheric radiative profiles during EUREC4A

Anna Lea Albright1,, Benjamin Fildier2,, Ludovic Touzé-Peiffer1,, Robert Pincus3,4, Jessica Vial1, and Caroline Muller2 Anna Lea Albright et al.
  • 1Laboratoire de Météorologie Dynamique, Sorbonne University, Paris, France
  • 2Laboratoire de Météorologie Dynamique, Ecole Normale Supérieure, Paris, France
  • 3Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, USA
  • 4NOAA Physical Sciences Lab, Boulder, CO, USA
  • These authors contributed equally to this work

Abstract. The couplings among clouds, convection, and circulation in trade-wind regimes remain a fundamental puzzle that limits our ability to constrain future climate change. Radiative heating plays an important role in these couplings. Here we calculate the clear-sky radiative profiles from 2001 in-situ soundings (978 dropsondes and 1023 radiosondes) collected during the EUREC4A field campaign, which took place south and east of Barbados in January–February 2020. We describe the method used to calculate these radiative profiles and present preliminary results sampling variability at multiple scales, from the variability across all soundings to groupings by diurnal cycle and mesoscale organization state, as well as individual soundings associated with elevated moisture layers. This clear-sky radiative profiles data set can provide important missing detail to what can be learned from calculations based on passive remote sensing and help in investigating the role of radiation in dynamic and thermodynamic variability in trade-wind regimes. All data are archived and freely available for public access on AERIS (Albright et al. (2020), https://doi.org/10.25326/78).

Anna Lea Albright et al.

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Anna Lea Albright et al.

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Atmospheric radiative profiles during EUREC4A Anna Lea Albright, Benjamin Fildier, Ludovic Touzé-Peiffer, Robert Pincus, Jessica Vial, and Caroline Muller https://doi.org/10.25326/78

Model code and software

Atmospheric radiative profiles during EUREC4A Anna Lea Albright, Benjamin Fildier, Ludovic Touzé-Peiffer, Robert Pincus, Jessica Vial, and Caroline Muller https://doi.org/10.5281/zenodo.4010195

Anna Lea Albright et al.

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Short summary
A number of climate mysteries are rooted in uncertainties in how clouds respond to their environment in the trades, the belt of easterly winds circling the planet. Differences in radiative heating play a role in the couplings among clouds and their environment. Here we calculate radiative profiles from 2001 dropsondes and radiosondes from the EUREC4A field campaign south and east of Barbados in winter 2020. We describe the method and discuss radiative heating variability on multiple scales.
A number of climate mysteries are rooted in uncertainties in how clouds respond to their...
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