We have recently published a paper that investigates how global Köppen–Geiger climate zones are projected to shift under 4×CO₂, with a special focus on the effect of vegetation physiological changes, which have been largely neglected so far. You can find the paper in Science of The Total Environment:

• He et al. (2024): Vegetation increases global climate vulnerability risk by shifting climate zones in response to rising atmospheric CO₂.

Our new paper investigates how the enhanced evaporation due to sea-ice retreat in the Arctic has contributed to cold season land precipitation over the Northern Hemisphere during 1980–2021. Moisture tracking suggests that additional evaporation from the Arctic marginal seas has contributed to a 32% increase in land precipitation, corresponding to a 16% increase per million square km sea-ice area loss. More information here:

• Liu et al. (2024): The disproportionate impact of enhanced evaporation from melting arctic sea ice on cold-season land precipitation trends.

The Climate Dynamics Group at Chalmers University of Technology is attending the Swedish Climate Symposium 2024 in Norrköping, 14-16 May.

The following members are attending:

• Ziqian Zhong (talk, Land Use and Terrestrial Ecosystems in the Climate System)
• Erik Holmgren (poster, Poster session 1)
• Hans Chen (poster, Poster session 2)

Come and talk with us if you’re in the area!

Following our press release, the recent study led by Ziqian Zhong has been featured in several media outlets in Sweden and abroad:

• Forskning och Framsteg: Skillnaden ökar mellan dag och natt – påverkar allt liv på jorden
• Forskning.se: Temperaturskillnaderna mellan dag och natt ökar
• Aftonbladet: Molnen blir färre – temperaturen ökar dagtid
• Earth.com: Asymmetric warming between day and night impacts all life on Earth

We have together with Chalmers’ communication officers published a press release about Ziqian Zhong‘s latest publication. Read more here:

• Increased temperature difference between day and night can affect all life on earth (English)
• Ökad temperaturskillnad mellan dag och natt kan påverka allt liv på jorden (Swedish)

Original publication: Zhong et al. (2023).

Hans Chen has received the Young Scientists 2023 grant from the Hasselblad Foundation.

“I feel deeply honored to receive this support from the Hasselblad Foundation and to be able to work with the wonderful people at the Hasselblad Foundation,” Hans says. He will use the grant to expand his group’s research on the Arctic climate system and carbon cycle dynamics.

The new website for the Chalmers Climate Dynamics Group (CDG) is now online!

This will become a hub where we share information about our research and related activities.

Cai et al. (2024): Assessing Arctic wetting: Performances of CMIP6 models and projections of future precipitation changes.

Lai et al. (2024): Precipitation variability related to atmospheric circulation patterns over the Tibetan Plateau.

Ziqian Zhong has published a new paper about the reversed trend of diurnal asymmetric warming: Zhong et al. (2023).

Two recently published papers related to the carbon cycle with co-authors from our group:

Wang et al. (2023): Fire carbon emissions over Equatorial Asia reduced by shortened dry seasons.

Zhong et al. (2023): Disentangling the effects of vapor pressure deficit on northern terrestrial vegetation productivity.

The latter study was led by Ziqian Zhong.