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The Climate Variability Across Scales (CVAS) working group will run its second online seminar series in conjunction with the PalMod project from November 2020 to March 2021.
The series is called "Climate variability across scales: from the butterfly's wings to the age of the Earth."
Description
Since the formation of planet Earth 4.54 billion years ago, the interplay between its solid, liquid and gaseous compartments has led to variable conditions as a backdrop to the evolution of life.
Today, weather observations from ground and space allow to reconstruct and project surface climate with unprecedented precision, and to attribute local to global-scale meteorological changes to human-made greenhouse gases.
Yet, there are outstanding research challenges in climate, and one of them is the spectrum of climate.
In 1976 John Murray Mitchell jr, an American climatologist, published the paper "An Overview of Climatic Variability and Its Causal Mechanisms" (Quat. Research, 1977, https://doi.org/10.1016/0033-5894(76)90021-1).
In this seminal paper he sketched a variance spectrum for the climate system spanning from timescales of hours (10–4 years) to the Age of the Earth (109 years), identified relevant processes and postulated their interactions.
Today we have evidence from paleoclimate data that allow to reconstruct the spectrum and see that the interactions between timescales are stronger than Mitchell envisaged. Theoretical understanding and modeling capacity of this spectrum are, however, still lacking.
This series of eight lectures is organized by CVAS, 44 years after Mitchell's paper, and brings together experts on timescales from minutes to millions of years, to review the state of knowledge on Earth surface climate variability across timescales.
Program
Tuesday 10 November
Juerg Schmidli – IAU Frankfurt, Germany. "Variability at sub-daily time scales – from seconds to hours."
> Watch the presentation on PAGES' YouTube channel
Thursday 26 November
Christian Grams – IMK-TRO/KIT, Germany. "Synoptic to sub-seasonal surface climate variability in the Atlantic-European region: the role of weather regimes."
> Watch the presentation on PAGES' YouTube channel
Thursday 3 December
Tine Nilsen – UIT, Norway. "Decadal variability and the scaling paradigm."
> Watch the presentation on PAGES' YouTube channel
Friday 18 December
Michel Crucifix – UC Louvain, Belgium. "The challenge of centennial climate variability."
> Watch the presentation on PAGES' YouTube channel
Wednesday 20 January
Julie Schindlbeck-Belo – GEOMAR Kiel, Germany. "The links between volcanism and climate."
No recording
Thursday 21 January
Heather Andres – MUN, Canada. "Millennial climate variability and Dansgaard-Oeschger events."
> Watch the recording on PAGES' YouTube channel
Wednesday 27 January
Oliver Friedrich – GEOW HD, Germany. "Glacial/Interglacial climate variability (105-107 years)."
> Watch the recording on PAGES' YouTube channel
Wednesday 10 February
Valerio Lucarini – Centre for the Mathematics of Planet Earth, University of Reading, UK. "Fingerprinting Heatwaves and Cold Spells using large deviation theory."
> Watch the recording on PAGES' YouTube channel
Friday 5 March
Mario Trieloff – GEOW, Heidelberg, Germany. "Climate variability on time scales of 100 Myr: stabilisation through the carbonate silicate cycle".
> Watch the recording on PAGES' YouTube channel
Thursday 18 March
Shaun Lovejoy – McGill University, Canada. "Linking Climate Variability Across Scales."
> Watch the recording on PAGES' YouTube channel
Registration
The link to the online meeting (Zoom) will be given to registered participants.
For registration and technical questions, please send an email to paleodyn@iup.uni-heidelberg.de with the mail header "CVAS lecture series".
The link will be sent to the first 75 registrations on the day prior to each talk (generally at around 17:00 UTC)
Further information
All recorded sessions are also available on PAGES' YouTube channel, on the CVAS Seminar series playlist.
Go the official seminar series website: https://www.iup.uni-heidelberg.de/de/research/paleoclimate-dynamics/CVAS_seminar
Contact Kira Rehfeld: krehfeld@iup.uni-heidelberg.de
Find out more about the first seminar series
All recorded sessions will be available on PAGES YouTube channel, on the CVAS Seminar series playlist