XAIDA

❗ Do not forget to register for tomorrow's webinar! Aglaé Jézéquel will talk about ‘Broadening the scope of anthropogenic influence in extreme event attribution?’ 📅 February 18th, 2025⏰ 2PM (14:00) CET 🔎Details & registration 👉 https://lnkd.in/ecbAjANu 💡 The presentation and discussion will be based on Jezequel et al. 2024, Environ. Res.: Climate 3 Laboratoire de Météorologie Dynamique - IPSL IPSL-Institut Pierre-Simon Laplace Ana Bastos Davide Faranda Emanuele Bevacqua

🆕 Paper | Estimating the contribution of Arctic sea-ice loss to central Asia temperature anomalies: the case of winter 2020/2021 👏 Lara R Cosford, Rohit Ghosh, Marlene Kretschmer, Clare Oatley and Theodore G Shepherd 📰 Environmental Research Letters 🔎 https://lnkd.in/eYDxZk95 University of Reading CINEA - European Climate, Infrastructure and Environment Executive Agency #winterextreme #climatescience

📍 Next week, Aglaé Jézéquel will talk about ‘Broadening the scope of anthropogenic influence in extreme event attribution?’ 📅 February 18th, 2025 at 2PM (14:00) CET 🔎Details & registration 👉 https://lnkd.in/ecbAjANu 💡 The presentation and discussion will be based on Jezequel et al. 2024, Environ. Res.: Climate 3 👉https://lnkd.in/e8UAW8c7 Laboratoire de Météorologie Dynamique - IPSL IPSL-Institut Pierre-Simon Laplace Ana Bastos Davide Faranda Emanuele Bevacqua

🆕 Paper| 'Generative networks for spatio-temporal gap filling of Sentinel-2 reflectances' by Maria Gonzalez Calabuig, Miguel Ángel Fernández Torres & Gustau Camps-Valls 👏 💡 "Earth observation from satellite sensors offers the possibility to monitor natural ecosystems by deriving spatially explicit and temporally resolved biogeophysical parameters. Optical remote sensing, however, suffers from missing data mainly due to the presence of clouds, sensor malfunctioning, and atmospheric conditions. This study proposes a novel deep learning architecture to address gap filling of satellite reflectances, more precisely the visible and near-infrared bands, and illustrates its performance at high-resolution Sentinel-2 data. We introduce GANFilling, a generative adversarial network capable of sequence-to-sequence translation, which comprises convolutional long short-term memory layers to effectively exploit complete dependencies in space–time series data. We focus on Europe and evaluate the method’s performance quantitatively (through distortion and perceptual metrics) and qualitatively (via visual inspection and visual quality metrics). Quantitatively, our model offers the best trade-off between denoising corrupted data and preserving noise-free information, underscoring the importance of considering multiple metrics jointly when assessing gap filling tasks. Qualitatively, it successfully deals with various noise sources, such as clouds and missing data, constituting a robust solution to multiple scenarios and settings. We also illustrate and quantify the quality of the generated product in the relevant downstream application of vegetation greenness forecasting, where using GANFilling enhances forecasting in approximately 70% of the considered regions in Europe. This research contributes to underlining the utility of deep learning for Earth observation data, which allows for improved spatially and temporally resolved monitoring of the Earth surface." 📰 in ISPRS Journal of Photogrammetry and Remote Sensing 🔎 https://lnkd.in/eufqxCwM Image and Signal Processing University of Valencia CINEA - European Climate, Infrastructure and Environment Executive Agency Dim Coumou Richard Tavares

🆕 Next webinar: February 18th, 2025 at 2PM (14:00) CET Aglaé Jézéquel will talk about ‘Broadening the scope of anthropogenic influence in extreme event attribution?’ 💡 The presentation and discussion will be based on Jezequel et al. 2024, Environ. Res.: Climate 3 👉https://lnkd.in/e8UAW8c7 🔎Details & registration 👉 https://lnkd.in/eZWKhpQ7 Laboratoire de Météorologie Dynamique - IPSL IPSL-Institut Pierre-Simon Laplace Ana Bastos Davide Faranda Emanuele Bevacqua

🌡️ How Extreme was the Global Heat in 2023/24? ❗ Do not miss today's webinar! Svenja Seeber is presenting her research at 2pm (14:00) CET ⏰ 🔎 Find out more 👉 https://lnkd.in/ezFbhMjQ Department of Environmental Systems Science (D-USYS), ETH Zürich Sonia I. Seneviratne CINEA - European Climate, Infrastructure and Environment Executive Agency Richard Tavares Dim Coumou #globalwarming #climatechange #climatescience #climateextremes

💡 Register for next week's webinar | Svenja Seeber will present 'How Exreme was the Global Heat in 2023/24?' 🌡️ 🔎 'Between July 2023 and June 2024, each month set a new temperature record, all exceeding the 1.5 °C threshold established by the Paris Agreement. The global mean surface temperature anomaly peaked in September 2023 at 1.8 °C above pre-industrial levels, exceeding the previous record by an unprecedented 0.5 °C. Using a probabilistic attribution framework, we assess the likelihood of this global heat. We show that September 2023 was the most extreme month in this record-breaking period, with temperature anomalies that were extremely unlikely based on both observed and modelled data. Although El Niño conditions contributed to the development of the heat, the most extreme anomalies were observed in the extratropics, particularly over land. CMIP6 climate models fail to capture the September 2023 anomaly under the current climate, but its occurrence probability rises sharply within a few years into the future. In contrast, the temperature jump from September 2022 to 2023 was an extreme anomaly that would strongly challenge our understanding of the climate system if it were to reoccur, even at higher warming levels. A process-based analysis highlights water vapour feedback and resulting longwave forcing as a key driver of the heat buildup, with no indication of missing processes or nonlinearities in the climate models'. 📅 January 21 ⏰ 2pm (14.00) CET 🔎 Details and registration 👉 https://lnkd.in/ezFbhMjQ ------ Sonia I. Seneviratne Department of Environmental Systems Science (D-USYS), ETH Zürich ETH Zürich IPSL-Institut Pierre-Simon Laplace Richard Tavares CINEA - European Climate, Infrastructure and Environment Executive Agency CLINT - Climate Intelligence #climatesciences #heat #globalwarming #extremeweatherevents #globalheat #climatechange

The January 2025 California wildfires have been fueled by meteorological conditions made more probable by human-driven climate change. ➡️ #ClimaMeter report from Davide Faranda and Greta Cazzaniga at IPSL-Institut Pierre-Simon Laplace (EU project XAIDA): https://lnkd.in/dPEPFa72 - Meteorological conditions similar to those triggering the January 2025 California wildfires are up 5°C warmer, 3 mm/day (up to 15%) drier, and up to 5 km/h (up to 20%) windier in the present compared to the past, in the area affected by the fires.  - The strengthened winds, higher temperature, and drier conditions triggering the January 2025 California wildfires can be ascribed to human-driven climate change, while natural climate variability likely only played a minor role. ➡️ See also recent study led by Yann Quilcaille and Fulden Batibeniz on past and projected changes in fire weather index: https://lnkd.in/dg-giFyi With increasing global warming, fire weather conditions such as those currently driving the fires in Los Angeles will become even more frequent and intense. We need to decrease our fossil fuel emissions fast to stabilise climate conditions. ➡️ Essential to remember: There are limits to adaptation, and we are increasingly reaching them (IPCC AR6 WGII report: https://lnkd.in/d7B6E9rJ) Bart van den Hurk Winston Chow Robert Vautard Andreia Ribeiro Ryan Padrón John Abatzoglou Valérie Masson-Delmotte Tapio Schneider Genevieve Guenther, PhD John Moorhead 🐿️🐳🐺🌳 Roberta Boscolo Katharine Hayhoe

🆕webinar | On January 21, Svenja Seeber will talk about ’HOW EXTREME WAS THE GLOBAL HEAT IN 2023/24?' 📅January 21, 2025 ⏰ 2pm (14:00) CET 🔎Details and registration👉xaida.eu/xaida-webinar-14/ Department of Environmental Systems Science (D-USYS), ETH Zürich CINEA - European Climate, Infrastructure and Environment Executive Agency Sonia I. Seneviratne #heatwave #climatescience #weatherextremes #globalheat #climatechange

❗Do not miss today’s webinar! Dominik Schumacher will talk about the ‘Storylines of heat and drought’ at 2pm (14:00)CET 👉 See the details: https://lnkd.in/eupAgijs Department of Environmental Systems Science (D-USYS), ETH Zürich #heatwave #climatescience #drought