Abstract:
:Clouds play a major role in the climate system, but large uncertainties remain about their decadal variations. Here we report a widespread decrease in cloud cover since the 1970 s over the Mediterranean region, in particular during the 1970 s-1980 s, especially in the central and eastern areas and during springtime. Confidence in these findings is high due to the good agreement between the interannual variations of cloud cover provided by surface observations and several satellite-derived and reanalysis products, although some discrepancies exist in their trends. Climate model simulations of the historical experiment from the Coupled Model Intercomparison Project Phase 5 (CMIP5) also exhibit a decrease in cloud cover over the Mediterranean since the 1970 s, in agreement with surface observations, although the rate of decrease is slightly lower. The observed northward expansion of the Hadley cell is discussed as a possible cause of detected trends.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Sanchez-Lorenzo A,Enriquez-Alonso A,Calbó J,González JA,Wild M,Folini D,Norris JR,Vicente-Serrano SMdoi
10.1038/srep41475subject
Has Abstractpub_date
2017-02-02 00:00:00pages
41475issn
2045-2322pii
srep41475journal_volume
7pub_type
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