Remote Sensing | |
Surface Imprints of Water-Column Turbulence: A Case Study of Tidal Flow over an Estuarine Sill | |
George O. Marmorino1  Geoffrey B. Smith2  | |
[1] Remote Sensing Division, Naval Research Laboratory, 4555 Overlook Avenue S.W., Washington, DC 20375, |
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关键词: ocean remote sensing; thermal infrared imagery; sill-induced mixing; boils; Boundary Pass; | |
DOI : 10.3390/rs5073239 | |
来源: mdpi | |
【 摘 要 】
Turbulent mixing in the ocean can, in some cases, be so intense as to leave surface imprints, or “boils”, that are detectable from space. Examples include turbulent flow over a submerged obstacle and instability of large-amplitude internal waves. In this paper we examine the particular case of tidal flow over a ∼60-m-deep sill, which forms a barrier for the flow of dense water from the Pacific Ocean into the Strait of Georgia. The flow response during flood tide is illustrated using visible and thermal-band satellite and airborne imagery, the latter having high-resolution multi-looks that capture the formative stage of the boils. The image examples capture aspects of the expected flow response based on
【 授权许可】
CC BY
© 2013 by the authors; licensee MDPI, Basel, Switzerland
【 预 览 】
Files | Size | Format | View |
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RO202003190035118ZK.pdf | 1718KB | download |