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About
GEWEX is interested in establishing a new project as a Global Flood Crosscutting Initiative that crosses several activities within the GEWEX Hydroclimatology Panel (GHP) and link with other GEWEX panels. Initial directions and thoughts about this initiative can be found in Samadi et al., 2021, The Role of GEWEX in Moving the Needle on the Resiliency of Society to Flooding, GEWEX Quarterly, Volume 31, Quarter 4, 2021, pg 11–12 .
Objective
The goals of the flood crosscutting initiative are to overcome barriers in flood modeling and observational architectures, and climate change and land use change impacts on flooding risk and consequences across current and future periods. The results of this first Flood CC workshop will allow the GEWEX Hydrometeorology Panel (GHP) to propagate flood modeling and research knowledge from one region to the other and synthesize results at a global scale.
Session subjects
Session 1: Hydrologic Factors for Flood Generation
What physical and hydrological factors dominate flood generation mechanisms across scales? And how these might be different in the combined flood generation mechanisms across the coastal, urban, and rural settings?
Session 2: Spatiotemporal Variability of Flooding
What changes in atmospheric and landscape systems control spatiotemporal variability of flooding?
Session 3: Interplay with Climate and Land Use
What is the likely interplay of climate and catchment physical changes (indicators of abrupt system shifts) on flood occurrence and predictability? How do changes in climate systems and land systems (e.g., dam-induced land use changes, etc.) co-evolve and cascade from the atmosphere to the land surface and affect catchment susceptibility to flooding? How do the sensitivity and uncertainty of flood simulations increase under non-stationarity?
