Millennial to orbital-scale variations of drought intensity in the Eastern Mediterranean

Mona Stockhecke*, Axel Timmermann, Rolf Kipfer, Gerald H. Haug, Ola Kwiecien, Tobias Friedrich, Laurie Menviel, Thomas Litt, Nadine Pickarski, Flavio S. Anselmetti

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

51 Citations (Scopus)

Abstract

Millennial to orbital-scale rainfall changes in the Mediterranean region and corresponding variations in vegetation patterns were the result of large-scale atmospheric reorganizations. In spite of recent efforts to reconstruct this variability using a range of proxy archives, the underlying physical mechanisms have remained elusive. Through the analysis of a new high-resolution sedimentary section from Lake Van (Turkey) along with climate modeling experiments, we identify massive droughts in the Eastern Mediterranean for the past four glacial cycles, which have a pervasive link with known intervals of enhanced North Atlantic glacial iceberg calving, weaker Atlantic Meridional Overturning Circulation and Dansgaard-Oeschger cold conditions. On orbital timescales, the topographic effect of large Northern Hemisphere ice sheets and periods with minimum insolation seasonality further exacerbated drought intensities by suppressing both summer and winter precipitation.

Original languageEnglish
Pages (from-to)77-95
Number of pages19
JournalQuaternary Science Reviews
Volume133
Early online date2 Jan 2016
DOIs
Publication statusPublished - 1 Feb 2016

Fingerprint Dive into the research topics of 'Millennial to orbital-scale variations of drought intensity in the Eastern Mediterranean'. Together they form a unique fingerprint.

Cite this