Modeling upper ocean diurnal variability: the role of diurnal winds versus wind gusts.
Abstract
Upper-ocean diurnal processes may impact longer-term climate via non-linear rectification. In order to explore how air-sea fluxes and upper-ocean processes change with the inclusion or omission of diurnal winds, we use observations from the DYNAMO field campaign and a high vertical resolution 1-D process model (GOTM). We also compare the diurnal cycle in the upper ocean obtained from the 1-D model to results from a new parameterization scheme developed by Large et al. (2015) at NCAR. This parameterization improves upon a scheme developed at ECMWF for modeling the sea surface diurnal cycling in a Coupled General Circulation Model. We present strengths and weaknesses of the parameterization scheme and model results in comparison to observations from the DYNAMO campaign for two stations in the equatorial Indian Ocean, and analyze the role of diurnal winds as well as wind gusts on upper-ocean mixing.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2016
- Bibcode:
- 2016AGUFM.A33D0257G
- Keywords:
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- 3314 Convective processes;
- ATMOSPHERIC PROCESSESDE: 3319 General circulation;
- ATMOSPHERIC PROCESSES