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Fig. 12.4 Sketch map of
Europe, showing the outline
of LGM ice sheets, coastlines
and potential cyclone tracks
(L) postulated on the base of
the new ELA isoline pattern
(after Kuhlemann et al.,
2008 ). The hatched line for a
preferential flow of the jet
stream in high troposphere is
only a hand-fitted tentative
estimate. Mediterranean
cyclone tracks are marked in
white
Fig. 12.5 Bathymetry map of Ledeno ezero (the Icy Lake) (Gachev et al., 2008 ). At the bottom to
the right -thefirstmapmadebyS.Leutelt-Kipke( 1932 )
the presence of firn bodies was common in the beginning of the 20th century. Thus
Radev ( 1920 ) wrote about “a patch of snow that never disappears at the SW end of
Ledeno ezero”, i.e. just at the location where the ridge was found, and Louis ( 1930 )
mentioned “several small glaciers in the high areas of Rila and Pirin”. All this comes
to tell that climatic conditions in the highest cirques of Rila are marginal in relation
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