AS82: Session Details

Section(s)

AS - Atmospheric Sciences (Primary)
HS - Hydrological Sciences

Session Title

Advancing Precipitation Science and Prediction: a Special Session on the Global Precipitation Experiment (gpex)

Conveners

* Prof Hui Su (The Hong Kong University of Science and Technology)
Dr Annalisa Cherchi (The Institute of Atmospheric Sciences and Climate (CNR-ISAC))
Prof Kyung-Ja Ha (Pusan National University)
Prof Robert Trapp (University of Illinois Urbana-Champaign)
Prof Akiyo Yatagai (Hirosaki University)

Session Description

Accurate observation, modeling, and prediction of precipitation remain fundamental challenges in Earth system science, with direct implications for managing water resources and natural hazards. To address this, the World Climate Research Programme (WCRP) has launched the Global Precipitation Experiment (GPEX) as a Lighthouse Activity to catalyze a decade of coordinated international efforts. This special session invites contributions that support the overarching goals of GPEX to enhance our understanding and predictability of precipitation in a changing climate. We solicit research that addresses 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 the understanding of the complex moist processes that produce precipitation and their interactions with atmospheric dynamics and other Earth system components. 3. Model Improvement: Identifying and reducing errors in precipitation representation in models, including work on parameterizations, kilometer-scale modeling, and physics-AI integration. 4. Capacity Development and Applications: Applying improved precipitation data and forecasts to enhance regional resilience, early warning systems, and climate adaptation, especially in vulnerable regions. Research focusing on key precipitating systems—such as atmospheric rivers, mesoscale convective systems, tropical cyclones, and monsoons—is particularly welcome. This session aims to foster cross-disciplinary dialogue, bringing together observationalists, modelers, forecasters, and end-users to collectively advance the frontiers of precipitation science and its societal applications, in direct support of the GPEX mission.

Keyword(s)

precipitation;modeling;observations

Expected Number of Abstracts

30