期刊
JOURNAL OF PHYSICAL OCEANOGRAPHY
卷 46, 期 7, 页码 2201-2218出版社
AMER METEOROLOGICAL SOC
DOI: 10.1175/JPO-D-16-0020.1
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资金
- NSF OCE Grant [1332646]
- NASA Grant [NNX14AH29G]
- Division Of Ocean Sciences
- Directorate For Geosciences [1332646] Funding Source: National Science Foundation
- NASA [683727, NNX14AH29G] Funding Source: Federal RePORTER
This paper aims to test the validity, utility, and limitations of the lateral eddy diffusivity concept in a coastal environment through analyzing data from coupled drifter and dye releases within the footprint of a high-resolution (800 m) high-frequency radar south of Martha's Vineyard, Massachusetts. Specifically, this study investigates how well a combination of radar-based velocities and drifter-derived diffusivities can reproduce observed dye spreading over an 8-h time interval. Adrifter-based estimate of an anisotropic diffusivity tensor is used to parameterize small-scale motions that are unresolved and underresolved by the radar system. This leads to a significant improvement in the ability of the radar to reproduce the observed dye spreading.
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