Research Group on Atmosphere-Biosphere-Coupling, Climate and Causality (ABC3) led by Dr. Alexander J. Winkler. Located in Jena, Germany and part of the Max Planck Institute for Biogeochemistryhttps://bsky.app/profile/abcube.bsky.socialhttps://bsky.app/profile/abcube.bsky.social/post/3mlbixj6vak2rWrapping up our #EGU26 with two talks and one poster presentation tomorrow! Details in the comments⬇️07 May 2026 15:14 +0000at://did:plc:7m64nxej4ejviatba6h72ect/app.bsky.feed.post/3mlbixj6vak2rhttps://bsky.app/profile/abcube.bsky.social/post/3ml6t5p5h6226Our #EGU26 contributions for tomorrow! ⬇️ Three exciting talks & posters—details in the comments 👇06 May 2026 13:38 +0000at://did:plc:7m64nxej4ejviatba6h72ect/app.bsky.feed.post/3ml6t5p5h6226https://bsky.app/profile/abcube.bsky.social/post/3ml53i75uhc2uOur #EGU26 contribution for tomorrow🌍 🗓️ Wed 06 May | 17:30–17:40 CEST |📍 Room L3 Mixed Land Cover Maximizes Surface Cooling in India: An ICON Model Energy-Balance Attribution Study Talk by Jyoti Sharma et al. | EGU26-1265205 May 2026 21:02 +0000at://did:plc:7m64nxej4ejviatba6h72ect/app.bsky.feed.post/3ml53i75uhc2uhttps://bsky.app/profile/abcube.bsky.social/post/3mkwvod5qsc2wKicking off our #EGU26 contributions tomorrow! We’re excited to share two talks from our group — details below 👇03 May 2026 10:02 +0000at://did:plc:7m64nxej4ejviatba6h72ect/app.bsky.feed.post/3mkwvod5qsc2whttps://bsky.app/profile/abcube.bsky.social/post/3mhsesasycc27📢 Two new preprints from the #PhenoFeedBacks project! 🍃🔄🌍 A synthesis and perspective of #phenology–#climate #feedbacks with coupled ESM runs + a data-driven analysis (EO & reanalysis) quantifying surface energy flux sensitivities across northern lands. tinyurl.com/33zmpa9t tinyurl.com/y6snxhsc24 Mar 2026 10:33 +0000at://did:plc:7m64nxej4ejviatba6h72ect/app.bsky.feed.post/3mhsesasycc27https://bsky.app/profile/abcube.bsky.social/post/3ma3zsziofs2e📢 New paper alert! 📢 Can Deep Learning (DL) models reliably extrapolate to unseen climatic conditions? We test whether various DL architectures successfully extrapolate both spatially and temporally in a controlled setting that mimics real-world complexity. Full paper: tinyurl.com/2ezxcxnr #ML #AI16 Dec 2025 11:22 +0000at://did:plc:7m64nxej4ejviatba6h72ect/app.bsky.feed.post/3ma3zsziofs2ehttps://bsky.app/profile/abcube.bsky.social/post/3m7hwv7k4sk22📢 New paper from our group! 🎉 We integrate pre-trained neural networks into the ICON-ESM land surface model (JSBACH4) and show that hybrid modeling can improve simulated water and carbon fluxes, especially under varying atmospheric dryness and water availability. Read more: tinyurl.com/yffnp9ch08 Dec 2025 11:36 +0000at://did:plc:7m64nxej4ejviatba6h72ect/app.bsky.feed.post/3m7hwv7k4sk22https://bsky.app/profile/abcube.bsky.social/post/3m6wtqrtyqk2rNew paper with Victor Brovkin and Alexander J. Winkler! 🎉 We explore idealized esm-flat10 experiments and find, among other things, that most models exhibit a quasi-linear relationship between cumulative carbon uptake on land and in the ocean. Read more: https://esd.copernicus.org/articles/16/2021/2025/01 Dec 2025 16:25 +0000at://did:plc:7m64nxej4ejviatba6h72ect/app.bsky.feed.post/3m6wtqrtyqk2rhttps://bsky.app/profile/abcube.bsky.social/post/3m33dxiffks2p@chunhuizhan.bsky.social successfully defended her PhD thesis, “The Effect of Elevated Atmospheric Carbon Dioxide on the Terrestrial Carbon and Water Cycle.” 🎉 Huge congratulations, Dr. Chunhui Zhan! 🎉13 Oct 2025 13:45 +0000at://did:plc:7m64nxej4ejviatba6h72ect/app.bsky.feed.post/3m33dxiffks2phttps://bsky.app/profile/abcube.bsky.social/post/3lp235yc7ck23New paper from our group! Winkler & Sierra propose a new path forward to Impulse Response Functions (IRFs) for Earth system modeling—capturing time- and state-dependencies critical for understanding carbon–climate feedbacks. 🌍🌀 Read more in Geophysical Research Letters: tinyurl.com/bdff3b6y13 May 2025 08:33 +0000at://did:plc:7m64nxej4ejviatba6h72ect/app.bsky.feed.post/3lp235yc7ck23https://bsky.app/profile/abcube.bsky.social/post/3lo4xhmfr522dWrapping up our #EGU25 with one last talk tomorrow! 📅 Fri, 02 May | 09:35–09:45 CEST |📍 Room 2.95 Space versus Time: Better Spatial Representation in Training Beats Longer Time Series for Predicting Global Land Carbon Uptake Variability 🎤 Talk by @dhafezirachti.bsky.social et al. | EGU25-1280801 May 2025 18:39 +0000at://did:plc:7m64nxej4ejviatba6h72ect/app.bsky.feed.post/3lo4xhmfr522dhttps://bsky.app/profile/abcube.bsky.social/post/3lo2ki3s6fs2aOur #EGU25 contributions for tomorrow! ⬇️ Four exciting talks & posters—details in the comments 👇30 Apr 2025 19:41 +0000at://did:plc:7m64nxej4ejviatba6h72ect/app.bsky.feed.post/3lo2ki3s6fs2ahttps://bsky.app/profile/abcube.bsky.social/post/3lnxkl553bc2gOur #EGU25 contribution for tomorrow: 🌍 🗓️ Wed, 30 Apr | 16:15–18:00 CEST |📍 Hall X5 | Poster X5.93 📊 Recalibrating neural network estimates of net ecosystem exchange in a Bayesian synthesis inversion Poster by @vitusbenson.bsky.social et al. | EGU25-1732929 Apr 2025 15:05 +0000at://did:plc:7m64nxej4ejviatba6h72ect/app.bsky.feed.post/3lnxkl553bc2ghttps://bsky.app/profile/abcube.bsky.social/post/3lnuwdxh76s2cExcited for our first #EGU25 talk tomorrow! 🎤 🗓️ Tue, 29 Apr | 10:55–11:05 CEST | Room C 🌍 Limitations of Machine Learning Models in Extrapolating to a Changing Climate Talk by Reimers et al. (presented by Alexander J. Winkler) | EGU25-1636028 Apr 2025 13:58 +0000at://did:plc:7m64nxej4ejviatba6h72ect/app.bsky.feed.post/3lnuwdxh76s2chttps://bsky.app/profile/abcube.bsky.social/post/3lnfftmkte22u📢 Call for Papers 📢 Geophysical Research Letters and Water Resources Research invite submissions for the Special Issue: Agrohydrological Processes Under Global Change! Topics: Sustainable water management, agrohydrological processes in a changing climate, sociohydrological dynamics, … . Submit now!22 Apr 2025 09:52 +0000at://did:plc:7m64nxej4ejviatba6h72ect/app.bsky.feed.post/3lnfftmkte22uhttps://bsky.app/profile/abcube.bsky.social/post/3lmfd74wfqk2rÉamon Ó Catháin is joining us for his master’s thesis entitled “Physically aware, observationally constrained estimates of the land carbon sink and its major drivers.” He will develop a deep learning emulator of an ensemble of land-surface models and nudge to observations using transfer learning!09 Apr 2025 15:40 +0000at://did:plc:7m64nxej4ejviatba6h72ect/app.bsky.feed.post/3lmfd74wfqk2rhttps://bsky.app/profile/abcube.bsky.social/post/3llri7s6jnk2mWe’re looking for another Scientific Coordinator (part time 80%) for the Max-Planck-Caltech-Carnegie-Columbia (MC³) Center for Earth science research @mc-3.bsky.social: Team coordination, project monitoring, planning of events & outreach activities! 📅 Apply by April 11: tinyurl.com/2s3r96my01 Apr 2025 18:17 +0000at://did:plc:7m64nxej4ejviatba6h72ect/app.bsky.feed.post/3llri7s6jnk2mhttps://bsky.app/profile/abcube.bsky.social/post/3lirnubq7yc25Mauricio Lima starts as a new PhD student in the group. Mauricio previously worked with river routing (@caltech.edu) and climate downscaling using machine learning models. In his PhD he will be exploring extreme events within the land-atmosphere coupled system through diffusion models.22 Feb 2025 15:42 +0000at://did:plc:7m64nxej4ejviatba6h72ect/app.bsky.feed.post/3lirnubq7yc25https://bsky.app/profile/abcube.bsky.social/post/3lhyuvrxtw22aDr. Praveen Kumar joins our group as a postdoctoral researcher. His current research focuses on tree mortality analysis using machine learning and deep learning models to identify key environmental and physiological triggers responsible for tree mortality.12 Feb 2025 19:12 +0000at://did:plc:7m64nxej4ejviatba6h72ect/app.bsky.feed.post/3lhyuvrxtw22a