Argo salinity: bias and uncertainty evaluation

Article Engineering, Ocean

Static and Dynamic Performance of the RBRargo3 CTD

M. Dever et al.

Summary: In this study, the static and dynamic performances of the RBRargo3 instrument were examined using laboratory-based and in situ datasets. The results show that temperature and pressure measurements compare well with reference data, and the static accuracy of salinity measurements is significantly improved with certain calibration methods. Long-term deployments also indicate no significant drift in accuracy. Additionally, the dynamic response of the instrument revealed the presence of two adjustment time scales, and corrections were developed for these effects.

JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY (2022)

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Article Geosciences, Multidisciplinary

How Salty Is the Global Ocean: Weighing It All or Tasting It a Sip at a Time?

R. M. Ponte et al.

Summary: The determination of global ocean mean salinity remains a challenge, with different estimation methods showing little consistency in seasonal, interannual, and long-term variability. In situ measurements are sensitive to product choice and exhibit unrealistic variations, while gravity-based measurements are more realistic and provide a way to calibrate in situ estimates.

GEOPHYSICAL RESEARCH LETTERS (2021)

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Article Geosciences, Multidisciplinary

Contributions of Altimetry and Argo to Non-Closure of the Global Mean Sea Level Budget Since 2016

Anne Barnoud et al.

Summary: Studies have shown that the global mean sea level (GMSL) budget was closed within uncertainties from 1993-2016, but non-closure was observed after 2016 with data from Jason-3, Argo, and GRACE/GRACE Follow-On. Errors in data sets used for estimating GMSL and its components may have contributed to this non-closure.

GEOPHYSICAL RESEARCH LETTERS (2021)

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Article Environmental Sciences