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Article

Airborne Remote Sensing of the Upper Ocean Turbulence during CASPER-East

1
Remote Sensing Division, US Naval Research Laboratory, Washington, DC 20375, USA
2
Skidaway Institute of Oceanography, Savannah, GA 31411, USA
3
Scripps Institution of Oceanography, La Jolla, CA 92037, USA
4
Department of Meteorology, US Naval Postgraduate School, Monterey, CA 93943, USA
5
College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, USA
*
Author to whom correspondence should be addressed.
Retired.
Remote Sens. 2018, 10(8), 1224; https://doi.org/10.3390/rs10081224
Received: 2 July 2018 / Revised: 31 July 2018 / Accepted: 1 August 2018 / Published: 4 August 2018
(This article belongs to the Special Issue Ocean Surface Currents: Progress in Remote Sensing and Validation)
This study takes on the challenge of resolving upper ocean surface currents with a suite of airborne remote sensing methodologies, simultaneously imaging the ocean surface in visible, infrared, and microwave bands. A series of flights were conducted over an air-sea interaction supersite established 63 km offshore by a large multi-platform CASPER-East experiment. The supersite was equipped with a range of in situ instruments resolving air-sea interface and underwater properties, of which a bottom-mounted acoustic Doppler current profiler was used extensively in this paper for the purposes of airborne current retrieval validation and interpretation. A series of water-tracing dye releases took place in coordination with aircraft overpasses, enabling dye plume velocimetry over 100 m to 10 km spatial scales. Similar scales were resolved by a Multichannel Synthetic Aperture Radar, which resolved a swath of instantaneous surface velocities (wave and current) with 10 m resolution and 5 cm/s accuracy. Details of the skin temperature variability imprinted by the upper ocean turbulence were revealed in 1–14,000 m range of spatial scales by a mid-wave infrared camera. Combined, these methodologies provide a unique insight into the complex spatial structure of the upper ocean turbulence on a previously under-resolved range of spatial scales from meters to kilometers. However, much attention in this paper is dedicated to quantifying and understanding uncertainties and ambiguities associated with these remote sensing methodologies, especially regarding the smallest resolvable turbulent scales and reference depths of retrieved currents. View Full-Text
Keywords: airborne remote sensing; ocean surface currents; upper ocean turbulence airborne remote sensing; ocean surface currents; upper ocean turbulence
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MDPI and ACS Style

Savelyev, I.; Miller, W.D.; Sletten, M.; Smith, G.B.; Savidge, D.K.; Frick, G.; Menk, S.; Moore, T.; De Paolo, T.; Terrill, E.J.; Wang, Q.; Shearman, R.K. Airborne Remote Sensing of the Upper Ocean Turbulence during CASPER-East. Remote Sens. 2018, 10, 1224. https://doi.org/10.3390/rs10081224

AMA Style

Savelyev I, Miller WD, Sletten M, Smith GB, Savidge DK, Frick G, Menk S, Moore T, De Paolo T, Terrill EJ, Wang Q, Shearman RK. Airborne Remote Sensing of the Upper Ocean Turbulence during CASPER-East. Remote Sensing. 2018; 10(8):1224. https://doi.org/10.3390/rs10081224

Chicago/Turabian Style

Savelyev, Ivan, William David Miller, Mark Sletten, Geoffrey B. Smith, Dana K. Savidge, Glendon Frick, Steven Menk, Trent Moore, Tony De Paolo, Eric J. Terrill, Qing Wang, and Robert Kipp Shearman. 2018. "Airborne Remote Sensing of the Upper Ocean Turbulence during CASPER-East" Remote Sensing 10, no. 8: 1224. https://doi.org/10.3390/rs10081224

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