Raw CTD data and microstructure measurements for revisiting Thorpe scale analysis of diapycnal mixing in the Southern Ocean

Date 2022
Temporal extent 2009 -2011
Author(s) Park Young-HyangORCID1, Durand IsabelleORCID1, Lee Jae-HakORCID2, Provost ChristineORCID1
Affiliation(s) 1 : LOCEAN, Sorbonne University, Paris
2 : KIOST, Busan, South Korea
DOI 10.17882/89861
Publisher SEANOE
Keyword(s) microstructure measurements, TurboMAP, raw CTD data, diapycnal mixing, Thorpe scale, Southern Ocean
Abstract

The data set presented here is related to an article on revisiting Thorpe scale analysis in the Southern Ocean (submitted to GRL). The data enables the validation of a revised Thorpe scale analysis at 8 stations in the Southern Ocean: 1) 7 TurboMAP/CTD stations in Drake Passage in April 2009; 2) 1 TurboMAP/CTD station in the Kerguelen region in October 2011

Reference to be cited as:

Young-Hyang Park, Isabelle Durand, Jae-Hak Lee, Christine Provost. Revisiting Thorpe scale analysis for accessing a relable diapycnal diffusivity in the Southern Ocean. Submitted to GRL

Licence CC-BY
Sensor metadata

1) TurboMAP (Turbulence Ocean Microstructure Acquisition Profiler) is a free-falling profiler and measures, among other parameters,

velocity shear (du/dz) at a rate of 256 samples per second, 256 Hz.

2) It was manufactured by Alec Electronics Company, Japan, which has been replaced by VMP, Canada

3) For the 2009 Drake Passage TurboMAP data, raw epsilon values are averaged in 5-m bins

4) For the 2011 Kerguelen TurboMAP data, raw epsilon values are averaged in 2-m bins

Key reference:

Wolk F., Yamazaki H., Seuront L, Leuck R.G. (2002). A new free-fall profiler for measuring biophysical microstructure. JAOT, 19, 780-793.

5) Raw CTD data from Sea-Bird Electronics SBE911plus are recorded in netCDF format, including information of the CTD fall speed,

a key parameter in the revised Thorpe scale analysis.

 

Data
File Size Format Processing Access
Raw CTD data at 7 TurboMAP/CTD stations in Drake Passage in 2009 43 MB NC, NetCDF Raw data Open access
TurboMAP epsilon data at 7 stations in Drake Passage in 2009 10 KB TEXTE Raw data Open access
Raw CTD data at a KEOPS II station A3 south of Kerguelen in 2011 1015 KB NC, NetCDF Raw data Open access
TurboMAP epsilon data at a station in the Kerguelen region in 2011 19 KB TEXTE Raw data Open access
Header station CTD in Drake Passage in 2009 before or after station TurboMAP 618 bytes TEXTE Raw data Open access
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How to cite 

Park Young-Hyang, Durand Isabelle, Lee Jae-Hak, Provost Christine (2022). Raw CTD data and microstructure measurements for revisiting Thorpe scale analysis of diapycnal mixing in the Southern Ocean. SEANOE. https://doi.org/10.17882/89861