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Article

Reconstruction of the Surface Inshore Labrador Current from SWOT Sea Surface Height Measurements

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Fisheries and Oceans Canada, Northwest Atlantic Fisheries Centre, St. John’s, A1C 5X1, Newfoundland, Canada
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Author to whom correspondence should be addressed.
Remote Sens. 2019, 11(11), 1264; https://doi.org/10.3390/rs11111264
Received: 11 April 2019 / Revised: 14 May 2019 / Accepted: 22 May 2019 / Published: 28 May 2019
(This article belongs to the Special Issue Advances in Satellite Altimetry and Its Application)
Utilizing a high-resolution (2-km) coastal ocean model output off Eastern Newfoundland, this paper explores the potential for reconstructing the sea surface height (SSH) and the surface inshore Labrador Current from high-resolution SSH data of the upcoming Surface Water and Ocean Topography (SWOT) satellite mission. The model results are evaluated against in-situ data from tide gauges and nadir altimetry for the period from June to October, 2010. The hourly model SSH output is used as true SSH and sampled along-swath with expected measurement errors by using a SWOT simulator, which produces SWOT-like data. We reconstruct half-day SSH fields from the SWOT-like data using optimal interpolation and average them into weekly fields. The average normalized root-mean-square difference between the weekly reconstructed SSH field and the model SSH filed is 0.07 for the inshore Labrador Current. Between the geostrophic surface current derived from the reconstructed SSH field and the model surface current, the average normalized root-mean-square difference is 0.26 for the inshore Labrador Current. For the surface unit-depth transport of the inshore Labrador Current, the normalized root-mean-square differences are 0.32–0.38 between the reconstructed current and the model current. View Full-Text
Keywords: altimetry application; SWOT; sea surface height; sea surface current; inshore Labrador Current; optimal interpolation altimetry application; SWOT; sea surface height; sea surface current; inshore Labrador Current; optimal interpolation
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MDPI and ACS Style

Ma, Z.; Han, G. Reconstruction of the Surface Inshore Labrador Current from SWOT Sea Surface Height Measurements. Remote Sens. 2019, 11, 1264. https://doi.org/10.3390/rs11111264

AMA Style

Ma Z, Han G. Reconstruction of the Surface Inshore Labrador Current from SWOT Sea Surface Height Measurements. Remote Sensing. 2019; 11(11):1264. https://doi.org/10.3390/rs11111264

Chicago/Turabian Style

Ma, Zhimin; Han, Guoqi. 2019. "Reconstruction of the Surface Inshore Labrador Current from SWOT Sea Surface Height Measurements" Remote Sens. 11, no. 11: 1264. https://doi.org/10.3390/rs11111264

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