Bjerknes Annual Meeting
Tentative agenda Bjerknes Annual Meeting October 1, 2024
New frontiers
0900-0910 Welcome by Director Kikki Kleiven
0915-0920 Introduction to hazards by Marius Årthun
0920-0935 Lu Li :“Future changes in extreme precipitation and floods in Western Norway from convection-permitting models”
0935-0940 Introduction to carbon by Are Olsen
0940-0955 Edson Silva: "Climate Change and the Frequency of Toxic Algae Blooms in a Polar Region: The Effect of Warming and Freshening of Coastal Waters"
0955-1000 Introduction to polar by Roshin Raj
1000-1015 Jonathan Rheinlænder: “Breaking Point: How Thinning Ice is Transforming Sea-Ice Breakup in the Arctic “
1015-1020 Introduction to global by Stefan Sobolowski
1020-1035 Augusto de Naschimento, title to be decided
1035-1055: Break
New methods
1100-1115: Natalya Gallo: “what landers can tell us about deep see community sensitivity
to climate change”
1115-1130: Priscilla Mooney: “Storylines of polar climate change”?
1130-1150: Talk by Erica Coppola
1200-1300: Lunch
New Projects
1300-1315 Stefan Sobolowski: Machine learning and AI
1315-1330 Helene Langehaug: "Marine heatwaves in the northern seas - an unexplored chapter"
1330-1345 Richard Sanders on Ocean ICU: Improving Carbon Understanding
1345-1400 Joshua Dorrington: “SPLICER - Synoptic Precursors for deveLoping Improved Constraints on Extreme Rainfall”.
1400-1430 Roundtable on ideas for Bjerknes 25-year anniversary
1430-1500 Break
1500-1530 Poster by 1 minute
1530-1730 Postersession
1800-- Dinner
Stormtracks group meeting
Kontakt: Stefan (stefans@uib.no) eller Camille (camille.li@uib.no)
International Quaternary webinar
October 2nd: Redmond Stein, Columbia University, USA
Topic: Paleoclimate during early human migration into Inutoqqaq Nunaat, northern Greenland
Recommended paper: TBA
Read moreGIS Seminar: Geospatial AI for Beehive Health
Dear All,
We are excited to continue our monthly seminar series on geospatial methods, and we invite you to join us for the next talk in the series. This month, we will feature a presentation by Julien Vadnais, a new PhD candidate who will present the findings from his master thesis. His work focuses on the use of geospatial AI to predict the health of honey bee colonies in various landscapes:
Talk Title: Applications of geospatial artificial intelligence and big data to assess the effects of landscape on beehives' health
Abstract:
Honey bees play a critical role in ecosystems, but in recent years, colony mortality rates have been on the rise. This presentation will explore how geospatial data and machine learning can be used to predict beehive health across different landscapes. Coupling a unique dataset comprising georeferenced health reports on 6,704 colonies in the province of Quebec, Canada, with various remote sensing products, we computed landscape metrics at multiple scales and ran a Random Survival Forests (RSF) model to predict the lifespan of colonies in various landscape scenarios.
Date: Wednesday 9th of October 13:00
Location: Kvartsitten (3rd floor of Realfagbygget opposite the mammoth)
Speaker: Julien Vadnais, Department of Earth Science, UiB
Call for Speakers
If you are interested in presenting your geospatial work or know of an external speaker who would be a good fit for our seminar series, please get in touch! We have funding available for three external guest speakers to visit Bergen this semester.
We look forward to seeing you there!
Ben, Suzette, Dan, Elise
International Quaternary webinar
October 9th: Guy Paxman, Durham University, UK
Topic: Constraining the extent of the Greenland Ice Sheet during past warmer climates: insights from the subglacial landscape
Recommended paper: Paxman et al., 2024 The Cryosphere
Read moreBCCR Cross theme seminar: Coupled changes in the Earth System
Speakers:
Roberto Suarez Moreno (Global): Sources of Sahelian rainfall predictability in state-of-the-art seasonal forecast systems, or the lack thereof
Dave Chandler (Hazards): Ocean warming as a trigger for irreversible retreat of the Antarctic ice sheet
Anne Britt Sandø (Polar): Inter-model spread in the North Atlantic circulation, temperature, and poleward heat transport trends
Climate Futures Faglig Seminar / Scientific Seminar
Tir / Tue 15. Oktober (språk / language: English)
Introduksjon av nye medlemmer: Helge Avlesen (NORCE), Kamilla Wergeland (Småkraft)
Jordan Weston (Harvard, NORCE guest researcher) - “No Green Leap without a Social License.”
Contact person: Iselin Medhaug
Read moreStormtracks group meeting
Kontakt: Stefan (stefans@uib.no) eller Camille (camille.li@uib.no)
International Quaternary webinar
October 16th: Sebastian Bertrand, University of Paris-Saclay, France
Topic: Glacial Lake Outburst Floods in Patagonia: A decreasing hazard?
Recommended paper: Vanderkerkhove et al., 2020 Quaternary Science Reviews
Read moreClimate Hazards group meeting
The next Hazards meeting will take place on 17 October 13:00-15:00 in the BCCR lecture room (4020).
In addition to the advertised talk by Ashbin Jaison, there will also be a talk by Joâo Paulo Horta Bettencourt on glider observations in Masfjorden.
More talks/contributions are most welcome!
Best,
Marius
Stormtracks group meeting
Kontakt: Stefan (stefans@uib.no) eller Camille (camille.li@uib.no)
International Quaternary webinar
October 23rd: Stein Bondevik, University of Applied Sciences, Sogndal, Norway
Topic: Contamination of 8.2 ka cold climate records by the Storegga tsunami in the Nordic Seas
Recommended paper: Bondevik et al., 2024 Nature Communications
Read moreGeohazards day 2024
Program - Geohazards Day 2024 (uib.no)
Read moreMachine Learning Journal Club
Kontakt: Stefan (stefans@uib.no), Julien (Julien.Brajard@nersc.no) eller João (joao.bettencourt@uib.no)
Seminar: Current Trends of Oceanic Variability in Regional Simulation Of The Greater Agulhas Current System & Projected Changes In Climate Models
Dear all,
This Friday at 13:15-14:00 Dr. Issufo Halo, one of this years Bjerknes Visting Fellows, will give a seminar.
Dr Issufo Halo is visiting from 22. October to 2. November. He is a scientist based at DFFE (Department of Forestry, Fisheries and the Environment, Cape Town, South Africa), his scientific expertise focuses on ocean dynamics in the greater Agulhas Current system and with specialisation on interaction between large-scale currents and mesoscale processes.
The overall goal of the visit is to establish future scientific research collaboration between scientists from the Bjerknes Centre and the South African Department of Forestry, Fisheries and the Environmental, to foster a better understanding of the ocean dynamics in the Agulhas Current system, and address questions of future climate projections in the region.
If you want to meet him while he is visiting, please contact Annette Samuelsen (annette.samuelsen@nersc.no).
BCCR Seminar: "Barotropic Trends through Barents Sea Opening for the period 1975-2022, The Underlying Physical Processes explained using Artificial Intelligence"
Drear all!
We will have a BCCR Seminar on Tuesday 29.10.2024. Robinson Hordoir from IMR and Vahidreza Jahanmard from Tallinn University of Technology will give a talk titled "Barotropic Trends through Barents Sea Opening for the period 1975-2022, The Underlying Physical Processes explained using Artificial Intelligence". The seminar will start at 14:15 in room 4020 as usual, and coffee and biscuits will be served. Well met!
Abstract
Climate models and observations show that the flow from the Nordic Seas to the Barents Sea, through Barents Sea Opening increased during the period 1975-2022, contributing to the « Arctic Atlantification » process. However, the underlying physical reasons behind this trend are still unexplained.
Using Artificial Intelligence, we reconstructed the barotropic flow at Barents Sea Opening, based on wind data over the Nordic Seas. The constraints required to perform this reconstruction provide the first hints on the nature of the trends, which we find to be linked with high frequency processes. This relation is confirmed through sensitivity experiments, as it appears that the Barents Sea Opening flow trend can not be explained by a linear wind trend, nor through a trend in the main wind variability modes. We therefore orientate our research towards a non-linear explanation. Using a second version of a deep learning model on one hand, and idealized 3D ocean modelling simulations on the other hand, we identify the underlying physical processes that explain the Barents Sea Opening flow trend through spectral sensitivity experiments.
About the speakers
Robinson Hordoir is a researcher at the Institute of Marine Research, and the Bjerknes Centre for Climate Research. He specializes in ocean modelling and physical oceanography, and is interested in ocean processes, and changes in ocean processes. He develops regional ocean models based on the NEMO ocean engine, which are used for hindcast and climate downscaling simulations.
Vahidreza Jahanmard is a researcher in the department of Building and Civil Engineering and Architecture of Tallinn University of Technology. His work focuses on the application of machine learning techniques for integrating sea level data sources and forecasting absolute dynamic topography. He is also collaborating with the IMR to develop causal deep learning model aimed at identifying and understanding the drivers of the flow trend in the Barents Sea Opening.
Carbon system meeting
30/10, 0900-1200. Carbon system meeting on land-ocean continuum and coastal zone biogeochemistry. Room 4020, west wing GFI
Stormtracks group meeting
Kontakt: Stefan (stefans@uib.no) eller Camille (camille.li@uib.no)
International Quaternary webinar
October 30th: Johannes Hardeng, University of Bergen, Norway
Topic: Reconstructing paleofloods from lake sediments: Methodological approaches and insights into the climate-flood dynamics of southern Norway
Recommended papers: Hardeng et al., 2022 Quaternary Science Reviews and Hardeng et al., 2024 Quaternary Science Reviews
Read more