×K3. Measurements and modeling of evapotranspiration in a changing climate

As a key component in global water, energy, and carbon cycles, evapotranspiration (ET) affects climates and ecosystems via a wide range of feedbacks directly influencing air temperature, humidity and precipitation. Accurate estimation of ET is therefore a requirement, but it is challenging both in situ and remotely, introducing uncertainties for model parameterization development and validation. Since John Dalton’s pioneering work in 1802 remarkable achievements have been made by the community in understanding the ET process at varying spatiotemporal scales in numerous climates and ecosystems. However, there are numerous remaining questions in critical ET-based science and application from local to global scales due to limitations in our observations and/or simulation skills. This session will provide a valuable opportunity to address the ET scientific topics in coordination with efforts in different regions of the world, to synthesise results at the global scale.

We invite papers covering, but not limited to, the following topics:

1. Advanced techniques for better measurements of ET and its components (soil evaporation, plant transpiration, and canopy interception) at multiple scales from plot to regional and global scales
2. Responses and feedbacks of ET to climate change and anthropogenic activities
3. Evaporation/sublimation from certain under-studied surfaces including water body, snow and glaciers
4. Role of ET in drought monitoring, agricultural management and water resources
5. Employing high-resolution ET product for improved hydrological and/or climate modeling in poorly-gauged regions of the world. We look forward to hearing and sharing insights and experiences in the field of ET-based science and application, as collectively we work to improve ways to model and monitoring ET (and its components) in a changing world.

Key topics: Evapotranspiration, Energy and water balance, Remote sensing, Vegetation