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• W3100151957 abstract "Abstract. Surface currents are poorly known over most of the world's oceans. Satellite-borne Doppler wave and current scatterometers (DWaCSs) are among the proposed techniques to fill this observation gap. The Sea surface KInematics Multiscale (SKIM) proposal is the first satellite concept built on a DWaCS design at near-nadir angles and was demonstrated to be technically feasible as part of the European Space Agency Earth Explorer program. This article describes preliminary results from a field experiment performed in November 2018 off the French Atlantic coast, with sea states representative of the open ocean and a well-known tide-dominated current regime, as part of the detailed design and feasibility studies for SKIM. This experiment comprised airborne measurements performed using Ku-band and Ka-band Doppler radars looking at the sea surface at near-nadir incidence in a real-aperture mode, i.e., in a geometry and mode similar to that of SKIM, as well as an extensive set of in situ instruments. The Ku-band Radar for Observation of Surfaces (KuROS) airborne radar provided simultaneous measurements of the radar backscatter and Doppler velocity in a side-looking configuration, with a horizontal resolution of about 5 to 10 m along the line of sight and integrated in the perpendicular direction over the real-aperture 3 dB footprint diameter (about 580 m). The Ka-band RADar for Ocean Current (KaRADOC) system, also operating in the side-looking configuration, had a much narrower beam, with a circular footprint only 45 m in diameter. Results are reported for two days with contrasting conditions, a strong breeze on 22 November 2018 (wind speed 11.5 m s−1, Hs 2.6 m) and gentle breeze on 24 November 2018 (wind speed 5.5 m s−1, Hs 1.7 m). The measured line-of-sight velocity signal is analyzed to separate a non-geophysical contribution linked to the aircraft velocity, a geophysical contribution due to the intrinsic motion of surface waves and the desired surface current contribution. The surface wave contribution is found to be well predicted by Kirchhoff scattering theory using as input parameters in situ measurements of the directional spectrum of long waves, complemented by the short wave spectrum of Elfouhaily et al. (1997). It is found to be closely aligned with the wind direction, with small corrections due to the presence of swell. Its norm is found to be weakly variable with wind speed and sea state, quite stable and close to C0=2.0ms-1 at the Ka band, and more variable and close to C0=2.4ms-1 at the Ku band. These values are 10 %–20 % smaller than previous theoretical estimates. The directional spread of the short gravity waves is found to have a marked influence on this surface wave contribution. Overall, the results of this study support the feasibility of near-nadir radar Doppler remote sensing of the ocean total surface current velocity (TSCV)." @default.
• W3100151957 created "2020-11-23" @default.
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• W3100151957 date "2020-11-13" @default.
• W3100151957 modified "2023-10-17" @default.
• W3100151957 title "Measuring ocean total surface current velocity with the KuROS and KaRADOC airborne near-nadir Doppler radars: a multi-scale analysis in preparation for the SKIM mission" @default.
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• W3100151957 cites W1971463507 @default.
• W3100151957 cites W1986530935 @default.
• W3100151957 cites W2001197258 @default.
• W3100151957 cites W2003246888 @default.
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• W3100151957 cites W2018316906 @default.
• W3100151957 cites W2029110544 @default.
• W3100151957 cites W2031973166 @default.
• W3100151957 cites W2047938900 @default.
• W3100151957 cites W2051876802 @default.
• W3100151957 cites W2058493519 @default.
• W3100151957 cites W2063392258 @default.
• W3100151957 cites W2068052880 @default.
• W3100151957 cites W2082012980 @default.
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• W3100151957 cites W2097245972 @default.
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• W3100151957 cites W2132749582 @default.
• W3100151957 cites W2171911089 @default.
• W3100151957 cites W2172681507 @default.
• W3100151957 cites W2173571909 @default.
• W3100151957 cites W2256058748 @default.
• W3100151957 cites W2467259839 @default.
• W3100151957 cites W2520546940 @default.
• W3100151957 cites W2587765506 @default.
• W3100151957 cites W2728442209 @default.
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• W3100151957 cites W2791415354 @default.
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• W3100151957 doi "https://doi.org/10.5194/os-16-1399-2020" @default.
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