While many hydroclimate extremes can be explained via internal atmospheric variability, processes that govern the exchange of water and energy exist between the atmosphere and the surface contribute to the development and persistence of extremes. These exchanges are driven by the complex interactions between different vegetation types, soil moisture, surfaces fluxes, precipitation, boundary layer evolution, and upper-air dynamics. Given these processes occur across varying spatial scales, the interconnections between the atmosphere and the surface impact local to global properties of the weather, climate, water, and ecosystems. Further, significant uncertainty exists regarding the future of global hydrological extremes and an improved understanding of the complex interactions between the ecosystem, hydrology and the atmosphere is essential to increased predictability spanning weather, subseasonal to seasonal, and climate scales. This interdisciplinary topic focuses on the numerous interplays between climate, weather, hydrology and ecosystems spanning local to global scales and will include presentations focused on improved understanding of energy and water cycles, the predictability of weather and climate extremes related to weather climate, water, ecosystem dynamics and variability, and the spatial and temporal evolution of their complex interactions. In keeping with the overall theme of the meeting, we encourage submissions highlighting the multidisciplinary nature of these topics.

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