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200 papers

Data assimilation (DA) integrates observational data with numerical models to improve the prediction of complex physical systems. However, traditional DA methods often struggle with nonlinear dynamics and multi-scale variability,…

Computational Engineering, Finance, and Science · Computer Science 2026-01-29 Hyeonggeun Yun , Quanling Deng

Data Assimilation (DA) plays a critical role in atmospheric science by reconstructing spatially continous estimates of the system state, which serves as initial conditions for scientific analysis. While recent advances in diffusion models…

Machine Learning · Computer Science 2025-05-20 Hao Wang , Jindong Han , Wei Fan , Weijia Zhang , Hao Liu

Methane (CH4) is the second most critical greenhouse gas after carbon dioxide, contributing to 16-25% of the observed atmospheric warming. Wetlands are the primary natural source of methane emissions globally. However, wetland methane…

Atmospheric and Oceanic Physics · Physics 2023-12-06 Sandeep Chinta , Xiang Gao , Qing Zhu

Ecosystem restoration is a paramount policy priority for this decade, with ambitious global and European targets requiring unprecedented levels of data-driven implementation. Achieving effective and equitable restoration, particularly for…

Estimating background-error covariances remains a core challenge in variational data assimilation (DA). Operational systems typically approximate these covariances by transformations that separate geostrophically balanced components from…

Atmospheric and Oceanic Physics · Physics 2026-01-21 Boštjan Melinc , Uroš Perkan , Žiga Zaplotnik

Accurate estimation of global terrestrial evapotranspiration (ET) is essential to understanding changes in the water cycle, which are expected to intensify in the context of climate change. Current global ET products are derived from…

Atmospheric and Oceanic Physics · Physics 2023-09-14 Haiyang Shi

Data assimilation of observational data into full atmospheric states is essential for weather forecast model initialization. Recently, methods for deep generative data assimilation have been proposed which allow for using new input data…

Accurate wetland mapping is essential for ecosystem monitoring, yet dense pixel-level annotation is prohibitively expensive and practical applications usually rely on sparse point labels, under which existing deep learning models perform…

Computer Vision and Pattern Recognition · Computer Science 2026-01-19 Shuai Yuan , Tianwu Lin , Shuang Chen , Yu Xia , Peng Qin , Xiangyu Liu , Xiaoqing Xu , Nan Xu , Hongsheng Zhang , Jie Wang , Peng Gong

Accurately characterizing land surface changes with Earth Observation requires geo-localized ground truth. In the European Union (EU), a tri-annual surveyed sample of land cover and land use has been collected since 2006 under the Land…

The DANish regional atmospheric ReAnalysis (DANRA) is a novel high-resolution (2.5 km) reanalysis dataset covering Denmark and its surrounding regions over a 34-year period (1990-2023). Denmark's complex coastline, with over 400 islands and…

While soil moisture information is essential for a wide range of hydrologic and climate applications, spatially-continuous soil moisture data is only available from satellite observations or model simulations. Here we present a global,…

Atmospheric and Oceanic Physics · Physics 2020-10-07 Sungmin O , Rene Orth

Climate change and increasing droughts pose significant challenges to water resource management around the world. These problems lead to severe water shortages that threaten ecosystems, agriculture, and human communities. To advance the…

Image and Video Processing · Electrical Eng. & Systems 2024-10-22 Luigi Russo , Francesco Mauro , Alessandro Sebastianelli , Paolo Gamba , Silvia Liberata Ullo

We describe the new global land water storage data set GLWS2.0, which contains total water storage anomalies (TWSA) over the global land except for Greenland and Antarctica with a spatial resolution of 0.5{\deg}, covering the time frame…

Geophysics · Physics 2023-08-09 Helena Gerdener , Jürgen Kusche , Kerstin Schulze , Petra Döll , Anna Klos

Soil moisture (SM) estimation from active microwave data remains challenging due to the complex interactions between radar backscatter and surface characteristics. While the water cloud model (WCM) provides a semi-physical approach for…

Machine Learning · Computer Science 2025-05-02 Yi Yu , Patrick Filippi , Thomas F. A. Bishop

High-resolution rainfall estimates from satellite and reanalysis sources (SRE) could play a major role in improving climate services for agriculture. This is particularly relevant in regions that rely on rain-fed farming but lack a dense…

Atmospheric and Oceanic Physics · Physics 2026-03-18 Danny Parsons , David Stern , Denis Ndanguza , Mouhamadou Bamba Sylla , James Musyoka , John Bagiliko , Graham Clarkson , Peter Dorward

Forecasting surface water dynamics is crucial for water resource management and climate change adaptation. However, the field lacks comprehensive datasets and standardized benchmarks. In this paper, we introduce HydroChronos, a large-scale,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-19 Daniele Rege Cambrin , Eleonora Poeta , Eliana Pastor , Isaac Corley , Tania Cerquitelli , Elena Baralis , Paolo Garza

Understanding soil is fundamental to agriculture, carbon cycling, and environmental sustainability, yet progress is limited by fragmented and heterogeneous datasets that constrain modeling to small-scale predictive settings rather than…

Machine Learning · Computer Science 2026-05-11 Kuangdai Leng , Simon Jeffery , Panos Panagos , Tarje Nissen-Meyer

Reanalysis datasets have become indispensable tools for wind resource assessment and wind power simulation, offering long-term and spatially continuous wind fields across large regions. However, they inherently contain systematic wind speed…

Atmospheric and Oceanic Physics · Physics 2025-11-10 Yan Wang , Simon C. Warder , Ellyess F. Benmoufok , Andrew Wynn , Oliver R. H. Buxton , Iain Staffell , Matthew D. Piggott

Leaf Area index is widely used metric for the assessment of vegetation dynamics and can be used to assess the impact of regional/local climate conditions. The underlying continuity of high resolution spatio-temporal phenological processes…

Quantitative Methods · Quantitative Biology 2021-05-20 Andrew B Whetten , Hannah Demler

The innovative application of precise geospatial vegetation forecasting holds immense potential across diverse sectors, including agriculture, forestry, humanitarian aid, and carbon accounting. To leverage the vast availability of satellite…

Computer Vision and Pattern Recognition · Computer Science 2024-03-08 Vitus Benson , Claire Robin , Christian Requena-Mesa , Lazaro Alonso , Nuno Carvalhais , José Cortés , Zhihan Gao , Nora Linscheid , Mélanie Weynants , Markus Reichstein