Laboratoire de météorologie dynamique | LMD

• Article dans une revue

Pliocene contrasted climate conditions in space and over time: A unique pollen dataset from the NW Mediterranean Region for comparison with climate models

Jean-Pierre Suc, Séverine Fauquette, Rachid Cheddadi, Ning Tan, Gilles Ramstein, Laurent Li, Gonzalo Jiménez-Moreno, Speranta-Maria Popescu, Zhuo Zheng

A set of 62 Pliocene pollen records and reconstructed climate parameters across the Northwestern Mediterranean Region, together with palaeoclimate simulations from the IPSL earth system model, provide a unique opportunity to study the Pliocene, especially the early Piacenzian Cooling (ePC) and the…

Global and Planetary Change, 2026, 259, pp.105328. ⟨10.1016/j.gloplacha.2026.105328⟩. ⟨hal-05519406⟩

• Article dans une revue

Not enough H₂O₂ to warm early Mars

Maxime Maurice, François Forget, Franck Lefèvre, Aurélien Stolzenbach, A. Yassin Jaziri, Ashwin S Braude, Martin Turbet, Ehouarn Millour, Yangcheng Luo

There exists strong geomorphological, sedimentary and mineralogical evidence that Mars had an active surface hydrological cycle during the Noachian period, about 3.8 Gyr ago (Ga). However, how surface temperatures compatible with perennial liquid water could be sustained in spite of a Sun that only…

• Article dans une revue

Integration of physical bound constraints to alleviate shortcomings of statistical models for extreme temperatures

Robin Noyelle, Yoann Robin, Philippe Naveau, Pascal Yiou, Davide Faranda

Heatwaves have devastating impacts on societies and ecosystems. Their frequencies and intensities are increasing globally with anthropogenic climate change. Statistical mod els using Extreme Value Theory (EVT) have been used for quantifying risks of extreme temperatures but recent very intense…

Journal of Climate, 2026, 39 (6), pp.1457-1484. ⟨10.1175/JCLI-D-25-0112.1⟩. ⟨hal-04479249⟩

• Pré-publication, Document de travail

PROBABILISTIC HEAT TRANSFER COUPLED FOR IMPROVED URBAN CLIMATE PREDICTIONS

Cyril Caliot, Louis d'Alençon, Stéphane Blanco, Christophe Coustet, Vincent Eymet, Vincent Forest, Richard Fournier, Frédéric Hourdin, Robert Schoetter, Najda Villefranque

<div><p>Our cities are getting hotter, particularly during heatwaves, which impacts our comfort and energy bills. It is crucial to predict how heat moves through complex urban areas, from buildings to streets, in order to design cooler, more sustainable cities. However, current methods…

2026. ⟨hal-05547977v2⟩