DATE2016-06-10 14:05:23
IDABSTRACT20160610140523-1105
CONTACTphilandras@academyofathens.gr
PRESENTATIONPOSTER
INVITED0
IDSESSION4
TITLEGREENHOUSE EFFECT ON UPPER AIR TEMPERATURE OVER THE MEDITERRANEAN. PRESENT AND FUTURE TRENDS AND VARIABILITY
AUTHORSKonstantinos M. Philandras (1), Panagiotis T. Nastos (2), John Kapsomenakis (1), Christos C. Repapis (1,3), Christos S. Zerefos (1,3,4)
AFFILIATIONS
  1. Research Centre For Atmospheric Physics And Climatology, Academy Of Athens, Athens (Greece)
  2. Laboratory Of Climatology And Atmospheric Environment, Department Of Geology And Geoenvironment, National And Kapodistrian University Of Athens, Athens (Greece)
  3. Mariolopoulos-kanaginis Foundation For The Environmental Sciences, Athens (Greece)
  4. Navarino Environmental Observatory (neo), Messinia (Greece)
ABSTRACTThe goal of this work is to investigate the long term air temperature changes in the troposphere over the Mediterranean. Towards this objective, we analyzed the upper air temperature datasets for the barometric levels at 850, 700, 500, 300, 200, 150, and 100 hPa, using 17 radiosonde meteorological stations within the Mediterranean region for the period 1965-2015, as well as gridded reanalysis products with spatial resolution 1.125° x 1.125° from the European Centre for Medium-Range Weather Forecasts (ECMWF, ERA-Interim) for the time period 1979-2015. We analyzed the trends and variability of upper air temperature on seasonal and annual basis. The footprint of atmospheric circulation, by means of specific climatic indices such as Mediterranean Oscillation Index (MOI), North Sea Caspian Pattern Index (NCPI), North Atlantic Oscillation Index (NAOI) and Arctic Oscillation Index (AOI), was also examined. In the process, the climatic changes in the upper air temperature at the respective barometric levels between the period 1980-2010 (reference period) and the period 2071-2100 (future climate) are presented using an ensemble of regional climate model simulations under the RCP8.5 and RCP 4.5 emissions scenarios. The findings of our analysis quantify the Greenhouse effect especially in lower/middle tropospheric barometric levels compared to upper troposphere over the Mediterranean.
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