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SUMMARY:EESS talk on "Recent unprecedented state of Eastern Mediterranean 
 Sea within the last millennium"
DTSTART:20190917T121500
DTEND:20190917T130000
DTSTAMP:20261004T210027Z
UID:a6a2501470343e35959337ca840af8abb5757b48644a0304cfd19778
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr Aldo Shemesh\, professor\, Department of Earth and Planetar
 y Sciences\, Weizmann Institute of Science (IL) - was appointed full profe
 ssor at Weizmann Institute of Science in 1989 after obtaining a PhD in Iso
 tope Chemistry back in 1986. Since 2014\, heads the De Botton Center for M
 arine Science\, Weizmann Institute of Science as well as since 2003\, the 
 Sussman Family Center for Environmental Sciences  at the same institution
 . His was head of the Department of Environmental Sciences and Energy rese
 arch from 1997-2003.\nHis scientific interest lay in s Stable isotope geoc
 hemistry\, climate change\, biogenic opal oxygen isotopes\, Mediterranean 
 climate change records\, vermetid stable isotopes\, high and low latitude 
 siliceous sediment\, continental paleoclimate retrieved from biogenic opal
 \, Southern Ocean paleo-productivity\, meltwater isotope signals\, coral c
 alcification and isotope signal buildup\, ocean acidification\, deep-sea b
 iogenic opal maturation to chert\, autonomous underwater vehicle in the Me
 diterranean.\nAbstract:\nThe Mediterranean region is a climatic transition
 al zone between the subtropical/monsoon regime and the temperate westerlie
 s and is subject to forces acting upon the global climate system. Much kno
 wledge about its climate over the last millennium is derived from terrestr
 ial records\, whereas changes in sea surface temperatures (SSTs) and in th
 e dissolved inorganic carbon pool (DIC) are poorly known. I will present c
 ontinuous high-resolution reconstructions of SST and d13CDIC in the easter
 n Mediterranean (EM) Sea\, as inferred from oxygen and carbon isotope reco
 rds from the skeletons of the reef builder gastropod Dendropoma sp. Spanni
 ng the past millennium\, the SST reconstruction reveals a 250 year persist
 ent warming trend during which the twentieth century was the warmest on re
 cord. Coupled with a distinct trend of d13CDIC depletion and superimposed 
 upon decreased primary production\, this climate reconstruction reflects a
  new state of the EM over the Anthropocene era that exceeds the natural va
 riability of the last millennium.
LOCATION:GR C0 01 https://plan.epfl.ch/?room==GR%20C0%2001
STATUS:CONFIRMED
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