NP Campfires - Predictability in Geosciences (NP5)

Join us for the second event of our Campfire Series within the Nonlinear Processes division of the
European Geosciences Union (EGU). Taking place on Thursday, 16th November at 2 pm CET, this
session will be led by the distinguished expert, Dr. Olivier Talagrand, focusing on the intriguing
topic of Predictability.
Predictability Talks:

a. Dr. Davide Faranda – Laboratoire des Sciences du Climat et de l’Environnement LSCE,
IPSL, CNRS
Topic: ClimaMeter: Putting Extreme Weather in Climate Perspective
Climate change is a global challenge with multiple far-reaching consequences, including the
intensification and increased frequency of many extreme weather events.
In response to this pressing issue, we present ClimaMeter, a platform designed to assess and
contextualise extreme weather events relative to climate change. The platform offers near real-time
insights into the dynamics of extreme events, serving as a resource for researchers, policymakers,
and being a science dissemination tool for the general public. ClimaMeter currently analyses
heatwaves, cold spells, heavy precipitation and windstorms. This talk elucidates the methodology,
data sources, and analytical techniques on which ClimaMeter relies, providing a comprehensive
overview of its scientific foundation. To illustrate Climameter, we provide few examples from recent
weather extreme events. Moreover, we underscore the role of ClimaMeter in fostering a deeper
understanding of the complex interactions between climate change and extreme weather, with the
hope of ultimately contributing to informed decision-making and climate resilience. Follow us on X
@ClimaMeter and on www.climameter.org

b. Dr. Javier Amezcua – Tecnologico de Monterrey CCM
Topic: Exploiting underused datasets to probe the middle and high atmosphere
Knowing the current state of the atmosphere is essential to initialize numerical weather forecasts. It
is not an easy task, however, to observe the global atmosphere adequately. In particular, few
observations of the middle and upper atmosphere exist. Some phenomena in the Earth’s surface
generate infrasound waves. Having low frequencies, these waves can travel for long distances
before being detected by acoustic arrays. In the vertical, these waves can travel up to 40-60 km
before being reflected or refracted back to the surface. As they travel, they effectively probe the
atmospheric layer they cross, since the effects of the atmospheric variables modify the observed
quantities at the reception side. I’ll discuss how data assimilation methods allow us to make use of
these observations to better estimate stratospheric variables.

If you have any questions about the ‘NP Campfires - Predictability in Geosciences (NP5)’ webinar, please contact us via webinars@egu.eu.