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SUMMARY:Recent developments and debates in East Asian monsoon palaeoclimat
 ology - Barbara Maher\, Lancaster University
DTSTART:20180308T173000Z
DTEND:20180308T183000Z
UID:TALK95410@talks.cam.ac.uk
CONTACT:Dr Rachael Rhodes
DESCRIPTION:Quaternary rainfall reconstructions for the monsoon-dominated 
 region of East Asia remain both of critical importance for testing general
  circulation model estimates of past and future rainfall for this populous
  region\, and intensely debated. The  oxygen isotope variations of the wel
 l-dated Chinese speleothem records have been very widely perceived as prox
 ies of summer monsoon intensity and summer rainfall totals. Mass balance c
 alculations demonstrate that extremely large changes in rainfall are requi
 red in order to generate the magnitude of oxygen isotope variations seen b
 oth within the Holocene and over glacial and interglacial timescales throu
 ghout the Quaternary. Rainfall proxy records derived from the famous loess
 /palaeosol sequences of the Chinese Loess Plateau do not accord with the c
 ave records (and are rarely if ever discussed by the cave science communit
 y).  Here\, the key areas of debate will be explored. The possible dominan
 ce of Pacific- rather than North Atlantic-sourced influences on the East A
 sia monsoon will also be discussed.\n\nA Quaternary Discussion Group semin
 ar
LOCATION:Latimer Room (Old Court)\, Clare College\, Trinity Lane
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