Diapycnal Mixing In A Coastal Regime - AESOP
Abstract
The long-term goal is to identify the major processes producing mixing in the upper ocean and to understand their dynamics sufficiently well to permit accurate parameterization of mixing for use in numerical models. These measurements during August 2006 were the first attempt we know of to survey a coastal domain with sufficient coverage to assess how mixing levels vary across the domain. Previous measurements have been concentrated in sub-regions, often revealing particular mixing processes, but insufficient to guide modelers in how to represent mixing over the whole domain of a regional model. To obtain spatial coverage, we ran lines of microstructure profiles that were 5-10 km long (Fig. 1). To observe the primary temporal variability, each line was run repeatedly for 12.5 hours, the period of the twice-daily tide, and some lines were rerun at a different phase of the monthly tidal period. Our planned lines were modified as we went and began to understand the patterns of tidal currents and mixing in the bay. The mixing measurements were supplemented by the powerful Doppler Sonars installed on R/V Revelle by Rob Pinkel at Scripps and by a 300 kHz ADCP on the bottom of the bay. 1
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 2007
- Accession Number
- ADA573376
Entities
People
- Jack B. Miller
- Michael C. Gregg
Organizations
- University of Washington