Japanese

Atmospheric and Hydrospheric Sciences (A)
Session Sub-categoryAtmospheric Sciences, Meteorology & Atmospheric Environment (AS)
Session IDA-AS12
Title Advancing Precipitation Science and Prediction: The WCRP Global Precipitation Experiment (GPEX)
Short Title GPEX
Main Convener Name Akiyo Yatagai
Affiliation Hirosaki University
Co-Convener 1 Name Toru Terao
Affiliation Kagawa University
Co-Convener 2 Name Takeshi Horinouchi
Affiliation Faculty of Environmental Earth Science, Hokkaido University
Co-Convener 3 Name Hui Su
Affiliation Hong Kong University of Science and Technology
Session Language E
Scope Accurate observation, modeling, and prediction of precipitation remain fundamental challenges in Earth system science and are key to sustainable management of water resources and disaster risk reduction. The World Climate Research Programme (WCRP) launched the Global Precipitation Experiment (GPEX) as a Lighthouse Activity to advance international collaboration in precipitation science. This session invites contributions that address the four primary science questions of the GPEX Science Plan: 1. Uncertainty Reduction: Quantifying and reducing uncertainties in precipitation estimates over land and ocean using advanced technologies and multi-source data fusion. 2. Process Understanding: Advancing understanding of moist processes and their interactions with atmospheric dynamics and other Earth system components. 3. Model Improvement: Reducing model errors and improving parameterizations and physical-AI integration. 4. Applications and Capacity Development: Applying improved precipitation data and forecasts to enhance regional resilience, early warning systems, and climate adaptation. Research focusing on key precipitating systems - such as atmospheric rivers, mesoscale convective systems, tropical cyclones, and monsoons - is especially welcome. This session aims to bring together observationalists, modelers, and application scientists to advance the understanding and predictability of precipitation in support of the GPEX mission.
Session Format Orals and Posters session