Corrections for pumped SBE 41CP CTDs determined from stratified tank experiments
Corrections for pumped SBE 41CP CTDs determined from stratified tank experiments
Date
2019-04-23
Authors
Martini, Kim I.
Murphy, David J.
Schmitt, Raymond W.
Larson, Nordeen G.
Murphy, David J.
Schmitt, Raymond W.
Larson, Nordeen G.
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DOI
10.1175/JTECH-D-18-0050.1
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Keywords
Data processing
In situ oceanic observations
Instrumentation/sensors
oceanic
Profilers, oceanic
In situ oceanic observations
Instrumentation/sensors
oceanic
Profilers, oceanic
Abstract
Sea-Bird Scientific SBE 41CP CTDs are used on autonomous floats in the global Argo ocean observing program to measure the temperature and salinity of the upper ocean. While profiling, the sensors are subject to dynamic errors as they profile through vertical gradients. Applying dynamic corrections to the temperature and conductivity data reduces these errors and improves sensor accuracy. A series of laboratory experiments conducted in a stratified tank are used to characterize dynamic errors and determine corrections. The corrections are adapted for Argo floats, and recommendations for future implementation are presented.
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Author Posting. © American Meteorological Society, 2019. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Atmospheric and Oceanic Technology 36(4), (2019): 733-744, doi:10.1175/JTECH-D-18-0050.1.
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Martini, K. I., Murphy, D. J., Schmitt, R. W., & Larson, N. G. (2019). Corrections for pumped SBE 41CP CTDs determined from stratified tank experiments. Journal of Atmospheric and Oceanic Technology, 36(4), 733-744.