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Large wind and solar farms in the Sahara would increase heat, rain, vegetation

ScienceDaily (September 6, 2018)

Titre : Large wind and solar farms in the Sahara would increase heat, rain, vegetation

ScienceDaily (September 6, 2018)

Résumé
Wind and solar farms are known to have local effects on heat, humidity and other factors that may be beneficial — or detrimental — to the regions in which they are situated. A new climate-modeling study finds that a massive wind and solar installation in the Sahara Desert and neighboring Sahel would increase local temperature, precipitation and vegetation. Overall, the researchers report, the effects would likely benefit the region.

The wind and solar farms simulated in the study would cover more than 9 million square kilometers and generate, on average, about 3 terawatts and 79 terawatts of electrical power, respectively. The model revealed that wind farms caused regional warming of near-surface air temperature, with greater changes in minimum temperatures than maximum temperatures. Solar farms had a similar positive effect on temperature and precipitation, the team found. Unlike the wind farms, the solar arrays had very little effect on wind speed.

Story Source  : University of Illinois at Urbana-Champaign

Annonce (ScienceDaily)

Page publiée le 11 avril 2019