Les changements des situations météorologiques renforcent les impacts des vagues de chaleurs et tempêtes  en France et en Europe Une nouvelle étude réalisée par des chercheurs de l’IPSL et de l’université d’Uppsala publiée dans PNAS révèle que les changements de situations météorologiques en Europe ont un impact majeur sur le climat de surface, exacerbant les effets du changement climatique.

Le Changement Climatique: cause majeure de la sécheresse 2022 en Europe de l'Ouest Les chercheurs de l’IPSL et de l'Université de Bologne démontrent le lien entre la sécheresse en Europe en 2022 et le changement climatique dû à l'homme.

Changes in temperature–precipitation correlations over Europe:  Are climate models reliable? by Mathieu Vrac, Soulivanh Thao, Pascal Yiou Inter-variable correlations (e.g.

Should Multivariate Bias Corrections of Climate Simulations Account for Changes of Rank Correlation Over Time? by M. Vrac, S. Thao, P.

Changes in the climate dynamics have already modified characteristics and impacts of storms in France: the case  study of storm Alex 2020 by Mireia Ginesta Extratropical cyclones play a key role in modulating the precipitation and wind in mid-latitudes and can be responsible for extreme wet and windy events.

Can we attribute the intense precipitation event in the Brisbane region in February 2022 to climate change? Camille Cadiou, Robin Noyelle, Nemo Malhomme & Davide Faranda   From the last week of February to mid-March 2022, the eastern coast of Australia faced an episode of intense rainfall.

A weather ensemble forecasting tool based on statistical and probabilistic methods Ensemble weather forecasts can help to anticipate the risks and probabilities of extreme weather events. Nevertheless, weather forecasting is a complex task due to the chaotic behavior of the atmosphere [1].

Attributing Extreme Events to Climate Change using Observations and taking into account the Atmospheric Circulation   When extreme events are very rare, it is often difficult to prove that their probability of occurrence has changed due to climate change.

This Open Access volume highlights how tree ring stable isotopes have been used to address a range of environmental issues from paleoclimatology to forest management, and anthropogenic impacts on forest growth. It will further evaluate weaknesses and strengths of isotope applications in tree rings.

Along the coasts of northern Alaska, in a treeless tundra environment, the primary wood resource for coastal populations is driftwood, a seasonal and exogenous resource carried by the major rivers of western North America.

Hydroclimate variability in tropical South America is strongly regulated by the South American Summer Monsoon (SASM). However, past precipitation changes are poorly constrained due to limited observations and high-resolution paleoproxies.

L’anticipation des effets du changement climatique est désormais un objectif de plus en plus partagé.

Notre-Dame de Paris, the so famous Catholic cathedral standing on Ile de la Cité in Paris, was built in 1163, largely completed by 1260, then frequently modified in the following centuries until a major restoration between 1844 and 1864.

Tree-ring width (TRW) chronologies have been widely and long-time used to reconstruct past climate variations in the Andes in South America. The use of tree-ring isotopic chronologies is still not widespread in this region although they have proved to be very efficient climate proxies.

Mardi 27, mercredi 28 et jeudi 29 septembre 2022, Camille Asselin, Edouard Régnier et Jérémy Jacob ont été accueillis par la Division Curage du Service Technique de l'Eau et de l'Assainissement (Direction de l'Eau et de la Propreté) de la Ville de Paris pour visiter les bassins de dessablement du secteur Est du réseau d'assainissement.

Jérémy Jacob et Sigrid Mirabaud 19 septembre 2022 à l'Institut National de l'Histoire de l'Art (Paris) - 2 Rue Vivienne, 75002 Paris Journée Thématique organisée par le réseau CAI-RN, avec le soutien de la MITI/CNRS L'objectif de la Journée Thématique était de sensibiliser la communauté de l'archéométrie et de la conservation aux sens.

Jérémy Jacob et Edouard Régnier En octobre 2021, des chercheures et chercheurs du Laboratoire des Sciences du Climat et de l’Environnement (LSCE, Gif-sur-Yvette), de l’Institut des Sciences de l’Évolution de Montpellier (ISEM) et de l’Université Fédérale du Ceara (Brésil) ont parcouru l’état du Piauí pour prélever des carottes de sédiments lacustres et des échantillons de surface.

Une collaboration menée par le LSCE (CEA-CNRS-UVSQ) applique pour la première fois une technique d'apprentissage automatique utilisée en linguistique à des bulletins météorologiques quotidiens couvrant 70 années.

The rate at which land surface soils dry following rain events is an important feature of terrestrial models. It determines, for example, the water availability for vegetation, the occurrences of droughts, and the surface heat exchanges.

Land surface modellers need measurable proxies to constrain the quantity of carbon dioxide (CO2) assimilated by continental plants through photosynthesis, known as gross primary production (GPP).

Given the ever increasing spatial resolution of climate models and the significant role of lakes on the regional climate, it becomes important to represent water bodies in climate models.

As part of its ongoing project on repositories for high-activity, long-lived radioactive waste, a 2000 m deep borehole was drilled by the French Nuclear Waste Agency (ANDRA) in the layered structure of alternating aquifers and aquitards of the Eastern Paris Basin.

  En datant par le 14C, les granules de vers de terre retrouvées dans une séquence de loess, une équipe pluridisciplinaire de chercheurs a permis de donner, pour la première fois, un cadre chronologique à toutes les phases de redoux de la dernière période glaciaire.

Abstract: The Arctic is among the fastest warming regions on Earth, but it is also one with limited spatial coverage of multi-decadal instrumental surface air temperature measurements.

Storms and tsunamis, which may seriously endanger human society, are amongst the most devastating marine catastrophes that can occur in coastal areas. Many such events are known and have been reported for the Mediterranean.

  As part of its ongoing project on repositories for high-activity, long-lived radioactive waste, a 2000 m deep borehole was drilled by the French Nuclear Waste Agency (ANDRA) in the layered structure of alternating aquifers and aquitards of the Eastern Paris Basin.

  Water stable isotopes in central Antarctic ice cores are critical to quantify past temperature changes. Accurate temperature reconstructions require to understand the processes controlling surface snow isotopic composition.