Update on Hydroclimatic Extreme Events in the GRACE/FO Data Record
- 1NASA Goddard Space Flight Center, Earth Sciences Division, Greenbelt, United States of America (matthew.rodell@nasa.gov)
- 2University of Maryland, Earth System Science Interdisciplinary Center
In this presentation we provide an update on the most extreme hydroclimatic events in the GRACE and GRACE-FO data record. In two articles published in 2023, using TWS data through the end of 2021, we identified 1,056 TWS extreme events (droughts and pluvials) and revealed a strong correlation between global mean temperature and the global total intensity these events. Intensity is a metric that integrates severity, extent, and duration of an event. Events were delineated and quantified using an automated clustering algorithm. We have now extended that analysis through the end of 2023. The top seven pluvials remain the same, with the most intense one still ongoing in Africa, while two of the previous top seven most intense droughts have been supplanted by others. Global total intensity is still highly correlated with global mean temperature.
How to cite: Rodell, M. and Li, B.: Update on Hydroclimatic Extreme Events in the GRACE/FO Data Record, GRACE/GRACE-FO Science Team Meeting, Potsdam, Germany, 8–10 Oct 2024, GSTM2024-22, https://doi.org/10.5194/gstm2024-22, 2024.
