A novel approach for unraveling the energy balance of water surfaces with a single depth temperature measurement
Abstract
The partitioning of solar energy over the Earth's surface drives weather and climate of the coupled land–ocean–atmosphere system. Over water surfaces, the evolution of water temperatures at a given depth in the mixed layer implicitly contains the signature of surface energy partitioning, and as such it can be used to diagnose the surface energy balance. In this study, we develop a novel numerical scheme by combining the Green's function approach and linear stability analysis to estimate the water surface energy balance using water temperature measurement at a single depth. The proposed method is capable of predicting water temperature in the mixed layer, and solving for the components of the surface energy budgets with physically based schemes. Evaluation against in situ measurement and the maximum entropy production method demonstrates that this approach is robust and of good accuracy. It is found that performance of the proposed method depends strongly on the accurate estimation of turbulent thermal diffusivity from in situ measurements, which carries information of meteorological and limnological conditions. Without explicitly using wind speed or temperature/moisture gradient, the proposed approach reduces uncertainty and potential error associated with meteorological measurements in estimation of water surface energy balance.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Oct 10, 2016
- Source ID
- 10.1002/lno.10378
Entities
People
- Elie Bou‐zeid
- Jiachuan Yang
- Marc B. Parlange
- Nikki Vercauteren
- Qi Li
- Zhihua Wang
Organizations
- Arizona State University
- Army Research Office
- Freie Universität Berlin
- German Research Foundation
- National Science Foundation
- Princeton University
- University of British Columbia