A WRF Simulation of an Episode of Contrails Covering the Entire Sky

Atmosphere

Jordi Mazon¹  David Pino¹ 

[1] Department of Physics—Universitat Politècnica de Catalunya—BarcelonaTech, Barcelona 08034, Spain;

关键词: contrails;    cirrus;    Weather Research and Forecast (WRF);   

DOI  :  10.3390/atmos7070095

来源: DOAJ

【 摘 要 】

On 21 September 2012 the entire sky was covered by contrails over the Gulf of Lyon (NW of the Mediterranean basin). These clouds were well recorded by ground observers as well as by Meteosat imagery. The atmospheric characteristics at the levels where these anthropic clouds formed are analyzed by performing a WRF simulation in the area where Meteosat recorded contrail clouds. According to the vertical profiles of temperature and the relative humidity respect to the ice (RHI), the environmental condition favors that the water vapor exhaust emitted by the aircraft engines reaches the deposition point and form crystal clouds, which spread out because the temperature remained below 230 K and the RHI was higher than 70% during the whole episode.

【 授权许可】

Unknown