Calls for Papers

Find calls for abstracts in areas of GEWEX-related science below. Meetings with abstract submission deadlines list sessions of interest to the GEWEX community.

Meetings

Journals/Reports

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7th WGNE Workshop on Systematic Errors in Weather and Earth System Models (SEW 2027)

Dates: 15–19 February 2027
Location:  Indian Institute of Tropical Meteorology (IITM), Pune, India
Abstract Submission Deadline: 31 July 2027

The workshop aims to bring together a wide range of experts on simulating the Earth System including atmosphere, ocean, waves, land-surface, atmospheric composition, and associated disciplines to advance the understanding of systematic simulation errors at all timescales. A summary paper will document key findings and identify priority biases in Earth System Models (ESMs).

Of interest are abstract submissions on systematic errors in physics based or machine learning based models, of all components of the Earth System including coupled and individual component models. In broad, submissions can be made under one of these 6 topics. These topics invite contributions that help to increase understanding of the nature and cause of systematic errors in ESMs.

Science Topics include:

2026 American Geophysical Union Annual Meeting (AGU2026)

Dates: 7–11 December 2026
Location:  Moscone Center, San Francisco, CA, USA
Abstract Submission Deadline: 5 August 2026

Below you’ll find a non-inclusive list of AGU26 sessions convened by GEWEX community members (indicated by session titles in bold), followed by sessions that are of interest to the GEWEX community.

A005 – Advances in Cloud and Precipitation Processes: Integrating Observations, Modeling, and Theory
Conveners: Yongjie Huang, Greg M McFarquhar, Fan Yang, and Yi Huang
This session invites contributions aimed at reducing uncertainties related to representation of clouds and precipitation in numerical weather prediction and Earth system models by integrating cutting-edge observations, advanced physics-based and data-driven modeling, laboratory experiments, and theoretical frameworks. 

A040 – Atmospheric Convection: Processes, Dynamics, and Links to Weather and the General Circulation
Conveners: Giuseppe Torri, Yang Tian, Hanii Takahashi, Rachel L. Storer, Cathrene Lagare
This session aims to explore aspects of boundary layer, shallow, and deep convective clouds, considering fundamental processes as well as links to topics such as self-aggregation, land surface interactions, and their role in weather and large-scale dynamics. Presentations of theoretical, modeling, and observational studies are invited. Contributions from the INCUS mission and other recent campaigns are particularly welcome.

A072 – From Physics to AI: Benchmarking, Bias Diagnosis, and Process Representation in Earth System Models
Conveners: Weiwei Li, Kathryn Newman, Katherine Breen, Mark Carroll, Michael Ek, Sujay Kumar, Lesley Ott, Olya Skulovich, Wenyu Zhou
This session aims to advance community standards for rigorous, interpretable, and application-relevant model evaluation, grounded in physical understanding.

A081 – High-Resolution Earth System Modeling on Large Supercomputers
Conveners: L. Ruby Leung, Gokhan Danabasoglu, Colin Zarzycki 
This session welcomes contributions in high- (~10 km), ultra-high (~km), and multi-resolution modeling to foster scientific exchange, coordination, and collaboration. The session also encourages presentations on model intercomparison projects such as HighResMIP, DYAMOND, and OMIP, and ensemble modeling at high resolution.

A124 – Years of Precipitation: Coordinating Global Efforts on High-Impact Precipitation Systems through the World Climate Research Programme’s Global Precipitation Experiment
Conveners: Robert Jeffrey Trapp, Juliana Dias, Jin Huang, Annalisa Cherchi
This session marks the launch phase of the YoP, bringing together the community to present new research and coordinated activities. Particularly invited are contributions on the different aspects of precipitation, including novel observations, homogenized or targeted datasets, planned field campaigns, process understanding, model evaluation, extremes, and data–model integration, including AI/ML. Overall, the session aims to foster international collaboration, advancing precipitation prediction and supporting the development of a globally integrated precipitation research community under the YoP framework.

C008 – Coupled-system Processes of the Arctic Atmosphere-Sea Ice-Ocean System: Harnessing Field Observations and Advancing Models 
Conveners: Patrick C Taylor, Matthew Shupe, Chelsea L Parker, Anne Sledd 
Contributions are invited that advance understanding and address sources and limits of HLES predictability, spanning scales from process-level dynamics to complex system interactions. Topics of interest include snow and ice cover, upper-ocean thermo-dynamics and biogeochemistry, land hydrology, air-sea-land interactions, polar vortex dynamics, extreme events, and teleconnections to lower latitudes.

GC042 – Earth System Forcing: Quantifying the Roles and Responses of Anthropogenic and Natural Climate Drivers
Conveners: Vaishali Naik and Paul James Durack
This session highlights research quantifying uncertainties in the evolution and impacts of these agents using Earth System Models and observations. Contributions are invited across forcing research, including development of historical and future forcing time series, idealized analyses, single- or multi-model frameworks, or observational methods assessing their influence on Earth system dynamics.

GC051 – Explaining and Predicting Earth System Change: Coupling of Observations and Models; Integrated Attribution, Prediction and Projection; Assessment of Current and Future Hazards
Conveners: Isla Simpson, Amy H Butler, Zhuo Wang, Kirsten Lynn Findell 
Contributions are invited in three thematic areas: (i) monitoring and modeling Earth system change, particularly approaches demonstrating tight coupling between observational and modeling efforts; (ii) integrated attribution, prediction, and projection of Earth system change, and (iii) assessment and attribution of current and future hazards, such as tropical cyclones, heatwaves, and droughts.

GC064 – GeoAI and Integrative AI Modeling for Earth System Informatics and Infrastructure Resilience 
Conveners: Xinyue Ye, L. Ruby Leung, Runlong Yu, Yangyang Xu 
This session invites contributions that develop or apply GeoAI and integrative modeling to study environmental change, natural hazards, and infrastructure systems. Topics include multi-scale Earth-human system interactions, monitoring and modeling of hazards, and assessment of infrastructure risk and resilience, as well as emerging approaches such as digital twins and large-scale data integration frameworks supporting analysis and decision-making.

GC095 – New Paths in Integrated Earth System Modeling
Conveners: Gavin A Schmidt, Ian G Fenty, Clara Orbe, Lesley Ott, Steven Pawson 
This session solicits contributions from ESM developers on new directions that are being taken to maximize return on developer investments – including utilization of GPU technology, building seamless hierarchies from complex to simple configurations, developing unified model frameworks for multiple applications (e.g. ocean state estimation to initialized predictions to long-term climate simulations, data assimilation and model calibration etc.), emulator development and utilization, and new applications across existing models.

GC101 – Progress Towards Understanding the Growing Earth’s Energy Imbalance (EEI)
Conveners: Gavin A Schmidt, Susanne Bauer, Norman G Loeb, Shiv Priyam Raghuraman, George Tselioudis
Contributions are solicited that identify and quantify contributions from changes in short-lived climate forcer emissions (aerosols and their precursors), the impact of cloud thermodynamic and dynamic feedbacks, surface changes, and deeper understandings of the structural uncertainties in the observational products. Contributions from the CERESMIP project are welcome.

GC117 – The global water cycle: coupling and exchanges of mass and energy between the ocean, land, cryosphere, and atmosphere
Conveners: Paul James Durack, Jiafu Mao, John T. Reager, Laifang Li, Marybeth Arcodia
This session focuses on water cycle research from an Earth system perspective, emphasizing interactions among the ocean, atmosphere, cryosphere, land surface, and subsurface. Contributions are invited spanning in situ and satellite observations-from past (e.g., Aquarius, TRMM, GRACE), current (e.g., GO-SHIP, Argo, SMAP, SMOS, GRACE-FO, GPM, GCOM-W, SWOT, NISAR), and future (e.g., CIMR, MAGIC) missions-as well as numerical models, data assimilation products, climate projections, and theoretical studies.

H005 – Advancing Capabilities for Hydrology Community Model and Data Infrastructure
Conveners: David G Tarboton, Martyn P Clark, Laura E Condon, Jordan Stuart Read 
Presentations are welcome that relate to the design, implementation, and use of open hydrologic cyberinfrastructure systems; community modeling frameworks; data discovery and sharing platforms in the spirit of unselfish collaboration in research advocated by AGU and CUAHSI. This session aims to bring together developers, users, and stakeholders to identify emerging needs and best practices for the next generation of hydrologic cyberinfrastructure.

H026 – Advancing Large-Domain Hydrologic Modeling and Prediction Capabilities via New Datasets, Methods and Modeling Strategies
Conveners: Hongli Liu, Guoqiang Tang, Andy Wood, and Martyn P Clark
Contributions are invited that advance large-domain hydrometeorological modeling and prediction capabilities, particularly with operational relevance.

H050 – Convergent Perspectives on Water, Energy and Carbon Dynamics over the US in the Coupled Human-Earth System
Conveners: Timothy Schneider, Sarah A Tessendorf, Petrus J J van Oevelen
Submissions are invited that explore co-design, inter- and transdisciplinary approaches to water cycle related science for a better understanding and quantification of water resources and availability now and in the future. Presentations that explore and use methods to evaluate, improve and integrate existing surface observational networks across regional to continental scales, in the context of terrestrial-based and spaceborne remote sensing, to support and advance the integrated Earth system modeling of the water-cycle, and regional, national and global operational weather and hydroclimate monitoring and modeling efforts are especially welcome.

H061 – Earth System Science, Water Resources, and Natural Hazards Applications Based on Global L-Band Radiometry with the NASA Soil Moisture Active Passive (SMAP) Satellite Mission
Conveners: Dara Entekhabi, Simon H Yueh, Rajat Bindlish, Craig Ferguson, Erin Urquhart
This session presents science and application topics based on the long-term SMAP L-band radiometry.

H073 – Generative AI in Hydrology and Interdisciplinary Environmental Research: Applications, Opportunities, and Challenges
Conveners: Mewcha Amha Gebremedhin, Vidya Samadi, Nikolaos Tziolas, Ahmed S. Elshall
Contributions are welcome that advance the use of Generative artificial intelligence (GenAI) for improving scientific understanding, modeling capabilities, education, and decision-making, particularly in complex environmental systems. Contributions from early-stage researchers, students, women, and minorities are especially welcome.

H074 – Geospatial Foundation Model and Remote Sensing for Hydrologic Prediction Across the Terrestrial Water Cycle
Conveners: Hyunglok Kim, Kristen Marie Whitney, Ehsan Jalilvand, Venkataraman Lakshmi, Mohammad Saeedi, Ziyue Zhu, Gigi Pavur, Sophia Bakar, Aashutosh Aryal
This session aims to bridge the hydrology, remote sensing, and AI communities to build seamlessly integrated learning systems for Earth system science.

H075 – Global River Modeling in the Anthropocene: Advancing Model Intercomparison and Remote Sensing Data Integration for Societal Benefits
Conveners: Augusto Getirana, Cedric H David, Dai Yamazaki, Peirong Lin
This session seeks cutting-edge research addressing modeling frontiers, with particular interest in studies that bridge scientific advances with practical applications for water resource management and climate adaptation. We welcome contributions from observational, modeling, and interdisciplinary perspectives to foster robust discussions on the future of river system science.

H105 – Multi-Source Precipitation and Hydroclimatic Data Source Fusion: From Uncertainty To Decision-Ready Hydrological Applications
Conveners: Andrew James Newman, Ashish Sharma, Yi Liu, Ali Behrangi, Rocky Talchabhadel, Seokhyeon Kim, Paul A Kucera and Suraj Shah
This session focuses on advances in multi-source data fusion, uncertainty quantification, and their integration into hydrometeorological and climate impact applications. It aims to bridge methodological developments and real-world use by bringing together communities in hydrology, atmospheric science, remote sensing, climate science, and data science. 

H131 – The State of the Freshwater Cycle: Global Data Synthesis and Routine Community Assessment for Discovery and Decision-Making
Conveners: Alexandra Boghosian, Christa D Peters-Lidard, Wouter Buytaert, Stefano Galelli 
This session highlights emerging scientific and technological advances towards a unified global synthesis of the freshwater cycle-spanning precipitation, evapotranspiration, surface water, groundwater, the cryosphere, ecosystems, human use, and water quality-to reveal patterns and test hypotheses from catchment to global scales. 

H151 – Where Flood Connects Us: Physical Models, Social Dimensions, and AI Innovations
Conveners: Alka Tiwari, Zhi Li, L Ruby Leung, Scott M Collis
Contributions are welcomed that address flood systems across three themes: (1) hydrologic-hydraulic-infrastructure- socioeconomic modeling and data development; (2) compound flood impacts on populations, infrastructure, and ecosystems; and (3) applications of Machine Learning, Deep Learning, and AI agents for improved flood prediction, assessment, and planning. Abstracts are sought that present novel approaches for analyzing cascading impacts using coupled natural-human systems, applying AI in real-time forecasting and early warning like digital twin efforts, evaluating nature-based solutions, and incorporating community sensitivity into risk models.

Sessions of Interest to the GEWEX Community

A008 – Advances in Fundamental Understanding of Convective Organization across Scales
A019 – Advancing Precipitation Prediction with Physical Models and Artificial Intelligence
A049 – Boundary Layer Clouds Across Scales: Processes, Regimes, and Earth System Coupling
A050 – Boundary Layer Processes and Turbulence
A063 – Earth System Variability and Predictability on Subseasonal-to-Multidecadal Timescales
A077 – Global Planetary Boundary Layer Observatory
A096 – Observation and model studies of cloud properties and associated processes
A101 – Regional Earth System Modeling for Hydroclimate Extremes, Resilience, and Decision Support
A120 – Understanding and Modeling of Mesoscale and Severe Local Convective Storm Processes
A124 – Years of Precipitation: Coordinating Global Efforts on High-Impact Precipitation Systems through the World Climate Research Programme’s Global Precipitation Experiment
H002 – Achievements in Soil Moisture: How In Situ Monitoring Enhances Water Cycle Science
H015 – Advances in Machine Learning for Earth Science: Observation, Modeling, and Applications
H027 – Advancing Measurements and Modeling of Invisible Components of Water Budget: Challenges, Opportunities, and Applications
H041 – Applications in Snow Hydrology
H063 – Evapotranspiration (ET): Advances in In Situ ET Measurements and Remote Sensing-Based ET Estimation, Mapping, and Evaluation
H098 – Machine Learning and Data Assimilation for Terrestrial Hydrologic Modeling and Discovery
H100 – Machine Learning in Hydrology: From Data and Physical Principles to Hybrid and Foundation Models
H112 – Physics-Informed Machine Learning and Generative AI for Hydrological Extremes
H117 – Recent Advances in Large-Scale Hydrologic and Flood Modeling: Towards Improved Assessment and Prediction of Extreme Floods
H118 – Recent Advances in Remote Sensing and Modeling of Flood Inundation
H127 – Space-Based Precipitation Observations: Innovations for Science and Applications
H134 – Towards a hybrid era of physical and machine learning models for extreme event prediction and understanding
H138 – Understanding and Quantifying the Human Impacts on Water Cycle
H140 – Uniting Community Water Resources Modeling and Operational Hydrology: Connecting Research Advances in Large-Domain Hydrologic Modeling, Artificial Intelligence, Hydroinformatics, and Social Science to Forecasting Applications
U008 – A Decade of Action for Cryospheric Sciences and preparing for the Fifth International Polar Year
U014 – NISAR One Year After the Start of its Science Phase: Delivering Global Data for the Earth Science Research and Applications Community

107th American Meteorological society Meeting (AMS2027)

Dates: 10–14 January 2027
Location:  Denver, CO, USA
Abstract Submission Deadline: 11 August 2026

Below you’ll find a non-inclusive list of AMS2027 conferences that are of interest to the GEWEX community. Sessions convened by GEWEX community members are listed per conference.

Session 19: Understanding and Evaluating Process Representation in Weather and Climate Models

Conveners: Kathryn M. Newman, NCAR/DTC, Boulder, CO; Co-conveners: Weiwei Li, NCAR/DTC, Boulder, CO; Wenyu Zhou, PNNL, Richland, WA and Michael B. Ek, NCAR, Boulder, CO

This session focuses on understanding and reducing biases across physics-based, AI-based, and hybrid models, with an emphasis on maintaining physical realism. We welcome studies that: 1) identify and diagnose biases in mean state, variability, and key processes, including assessments of physical behavior and consistency in AI-based or hybrid models; 2) use observations to constrain parameterized or learned representations; 3) evaluate both traditional physical parameterizations and ML-based parameterization approaches. 

Contributions from testbeds, model-intercomparison efforts, and operational systems are encouraged. The session aims to bring together researchers with expertise in processes who can help advance both physics- and AI-based modeling systems in a physically grounded manner.

Southwestern US Weather & Water Resilience Workshop

Dates: 18–19 November 2026
Location:  Tucson, AZ, USA, plus virtual participation
Abstract Submission Deadline: 15 August 2026

The workshop will bring together researchers, resource managers, natural hazards planners, and forecasters to discuss:

The program will include invited talks, panels, breakout discussions, and interactive poster sessions. Confirmed speakers include Allison Aiken, lead investigator for DUSTIEAIM; Andrew Feldman and Shawn Serbin, lead investigators for ARID; Cindy Kobold of Arizona Public Service; Tom Dang from the National Weather Service; and Meg Fowler with NSF NCAR’s Earth System Predictability Across Timescales initiative. For a full list of speakers, please visit https://water-climate.engin.umich.edu/sw/. 

Participation is free, but registration is required since in-person space is limited. Limited travel support is available. 

Register and submit an abstract at https://water-climate.engin.umich.edu/sw/.

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