Radiation in fog: quantification of the impact on fog liquid water based on ground-based remote sensing

Wærsted, Eivind G.; Haeffelin, Martial; Dupont, Jean-Charles; Delanoë, Julien; Dubuisson, Philippe

doi:https://doi.org/10.5194/acp-17-10811-2017

Articles | Volume 17, issue 17

https://doi.org/10.5194/acp-17-10811-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-17-10811-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 17, issue 17

Research article

|

14 Sep 2017

Research article |

| 14 Sep 2017

Radiation in fog: quantification of the impact on fog liquid water based on ground-based remote sensing

Eivind G. Wærsted, Martial Haeffelin, Jean-Charles Dupont, Julien Delanoë, and Philippe Dubuisson

Data sets

ARTDECO (Atmospheric Radiative Transfer Database for Earth Climate Observation): a numerical tool for the simulation of radiative transfer in the Earth atmosphere Developed by the LOA, distributed by AERIS/ICARE and supported by CNRS, Lille University and CNES http://www.icare.univ-lille1.fr/projects/artdeco

SIRTA atmospheric observatory Institut Pierre Simon Laplace, Centre National de la Recherche Scientifique, Ecole polytechnique http://sirta.ipsl.fr

Short summary

Heating and cooling of fog layers by solar and terrestrial radiation influence the fog life cycle. We quantify these radiative impacts on fog liquid water using detailed cloud radar observations of seven fog events as well as sensitivity studies. We find that the impact of radiation is affected mainly by fog optical thickness, atmospheric humidity and the presence of clouds above the fog. Observing these quantities in real time can therefore be useful for forecasting fog dissipation.