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The PAGES 2k Network conducted an online seminar series 20 May - 8 Nov 2021.
Today's seminar - 22 July at 15:00 UTC
Georgy Falster, from the Climate and Paleoclimate Laboratory at the Washington University in St. Louis, USA, will present "Using the stable isotopic composition of water to gain new insights into global hydroclimate variability through the Common Era".
Description
Water isotopes preserve information about spatial and temporal variability in the water cycle, and this information can be recorded in palaeoclimate proxy archives including corals, wood, ground and glacier ice, terrestrial and marine sediments, speleothems, lake sediments, and mollusc shells.
The Iso2k team – comprising experts from all archive types – spent five years compiling Common Era water isotope proxy records, along with comprehensive metadata to guide palaeoclimatic interpretations. The Iso2k database, published in September 2020, contains 759 globally-distributed stable isotope records, in many cases accompanied by raw chronological data.
The first global synthesis analyses using Iso2k records suggest that on multi-centennial timescales, global mean temperature is the primary driver of variability in the isotopic composition of the global meteoric water pool. On multi-decadal to centennial time scales, the Pacific Walker circulation also plays an important role in regional atmospheric circulation and precipitation/evaporation patterns.
Georgy's talk will also report preliminary results from new analyses that further explore Iso2k's potential to provide insight into changes in various components of the water cycle through the Common Era.
How to join
Your date and time here: https://www.timeanddate.de/zeitzonen/events?msg=2k+Network+seminar+series%3A+Georgy+Falster&iso=20210722T15&p1=%3A&ah=1
Zoom (no registration required): https://unibe-ch.zoom.us/j/66610612542?pwd=OHhSNSsvTkZMc2JSNURnNlRTaGx3QT09
Meeting ID: 666 1061 2542
Passcode: 876787