Events

Hi everyone,

We’ll have our stormtracks group meeting this Wednesday (11.11) from 14:00 to 15:00 at U105. This week Hari will present his work about - The influence of mesoscale SST features on ENSO teleconnections.

The meeting will be hybrid and you can join remotely via Zoom: https://uib.zoom.us/j/62886269543?pwd=ajWbi97zr0hbniaoQdZkUtD2EUSSri.1
Meeting ID: 628 8626 9543 | Password: qSKTfKU3

The meeting schedule for this semester is in the following google doc: https://docs.google.com/document/d/1oLVVNtXjbjU3uNZ62qnXF8pcYbrCB34aUqUbDfnb2vo/edit?tab=t.0

Looking forward to seeing you all!:)

Best,

Birgit and Yangfan

Abstract

Moist convection is organized across a wide range of scales, yet many of the processes that modulate it are difficult to quantify from an Eulerian perspective. In this talk, I will show how the coupling between a cloud-resolving model and a Lagrangian particle model can be used to address this limitation. Lagrangian particles are particularly useful because they can encode the history of air parcels. I will first discuss what this approach reveals about the dynamics of precipitation-driven downdrafts and cold pools--arguably one of the least understood components of moist convection--and about the mechanisms by which cold pools can trigger and organize new convective cells. I will then show how this framework can be extended to stable water isotopes. Because each particle carries its own isotopic composition, changes along its trajectory can be attributed to individual processes, such as rain evaporation, equilibration, mixing, and surface fluxes. This reveals, for example, that surface latent heat fluxes, rather than entrainment, control the isotopic composition of cold pools, and it provides a process-based foundation for interpreting isotope observations of convection. Finally, I will briefly discuss how this framework might be applied to marine cold-air outbreaks over the North Atlantic and Nordic Seas.

Speaker information

Giuseppe Torri is an Associate Professor of Atmospheric Sciences at the University of Hawaiʻi at Mānoa. His research focuses on the dynamics and organization of moist convection, with particular interests in precipitating convection, its interaction with larger-scale circulations and, more recently, the dynamics of extreme weather. Much of this work relies on the application of Lagrangian particle models and water isotopes to obtain a process-based understanding of atmospheric phenomena that are otherwise hard to quantify. He also studies island hydroclimates across a range of spatial and temporal scales. He trained as a theoretical physicist, receiving his PhD from Imperial College London, before moving into atmospheric science as a postdoctoral fellow at Harvard University.

KUNNGJØRING PRØVEFORELESNING

Institutt for geovitenskap

Fakultet for naturvitenskap og teknologi
Universitetet i Bergen

Ph.d.-kandidat Jarle Børve Sleire holder prøveforelesning over følgende oppgitte emne for ph.d.-graden:

Glacier retreat and emerging geohazards in a warming world

Tid og sted:

Fredag 13. november 2026, kl. 13.15 
Auditorium 4, Realfagbygget

Komité:

Professor Kerim Hestnes Nisancioglu , Institutt for geovitenskap (leder for komiteen)
Professor Henriette Linge, Institutt for geovitenskap 
Førsteamanuensis Chenliang Wu, Institutt for geovitenskap

Adgang for interesserte tilhørere.

VELKOMMEN!

Jarle Børve Sleire disputerer 20.11.2026 for ph.d.-graden ved Universitetet i Bergen med avhandlingen «Crossing the threshold: lake sediments record glacier-climate change and floods».

Les mer her: Disputas: Jarle Børve Sleire | UiB

Dear All,

We are pleased to announce the 1st BCCR AMOC forum, that will take place on December 10th 2026 in the Bjerknes meeting room 4020. 

We plan to provide some light snack or meal for lunch/coffee break during this event, within limits of budget and number of participants. Hence, we kindly ask participants to register by Friday December 4th using the link below, so we can plan for this.

 Link to registration form and tentative program:

https://docs.google.com/forms/d/e/1FAIpQLSdlIqpgCVQNbE1D66BiwY2TLB-HTbn2WvBf8g1zEkhXZhMM1Q/viewform?usp=dialog

Save the dates!