Preliminary Lightning Observations over Greece

Journal of Geophysical Research Atmospheres (Impact Factor: 3.44). 01/2011; DOI: 10.1029/2011JD017063

ABSTRACT Chronis, T.
Preliminary Lightning Observations over Greece
J. Geophys. Res., doi:10.1029/2011JD017063, in press.

(unofficial abstract) Several, PRETTY COOL (if i may add) observations that associate to lightning never (and i mean never) before reported in literature; two words: sea surface salinity and cloud capacitance...

  • Bulletin of the American Meteorological Society 02/2013; (in press):130211122058003. · 11.57 Impact Factor
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    ABSTRACT: The main climatic characteristics of precipitation in the southern Balkans were examined by applying S-Mode and T-Mode factor analysis (FA) to APHRODITE 0.25° × 0.25° grid point precipitation data for the period 1951−2007. First, S-Mode FA was applied to the seasonal precipitation values and revealed the main modes of interannual variation of precipitation for each season. These modes were found to be connected to specific atmospheric circulation centers of action. Statistically significant negative trends were found for: (1) winter and spring precipitation over northwestern Greece and southern Albania and (2) spring and autumn precipitation over the southern Aegean Sea. Next, T-Mode FA was applied to the 57 yr mean precipitation of 5 d intervals (n = 73) in a year and resulted in 3 main modes of spatial distribution of precipitation: (1) the cold period mode (late November to late March) with maxima in northwestern Greece and the western Asia Minor coasts, (2) the warm period mode (late April to late August), presenting a maximum over the northern continental areas, and (3) the autumn mode (early September to late October) with a maximum found over the northern Ionian Sea. The intra-annual variations of the prevalence degree of these modes are connected to the seasonality of the thermal characteristics of the surface and the overlying atmospheric layers and the main circulation systems affecting the region.
    Climate Research 12/2012; 55(2):167-179. · 2.71 Impact Factor


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