search DOI 10.17882/71295

French PIRATA cruises: LADCP data (and processing protocol)

L-ADCP (Lowered-Acosutic Doppler Current Profiler) data were collected during CTD profiles with dual mounted L-ADCP in the Gulf of Guinea during cruises carried out from 2005 to 2019 in the framework of the programs «Prediction and Research morred Array in the Tropical Atlantic» (PIRATA ; Bourlès et al., 2008).

Disciplines

Physical oceanography

Keywords

L-ADCP, ADCP, PIRATA

Location

28.051728N, -12.491168S, 12.383094E, -69.530968W

Devices

L-ADCP (Lowered-Acosutic Doppler Current Profiler) data were collected with two RDI Workhorse L-ADCP current meter (generally one RDI 300kHz and one RDI 150kHz, or two RDI 300kHz) mounted on the CTD frame, one looking up and one down. This particular setting-up maximizes the total range of velocity observations, reducing the overall error of the system and providing redundancy on measurements. The vertical profiling resolution is generally 8db. Data have been processed using the version 10.16 of the IFM-GEOMAR/LDEO software (Visbeck, 2001), developed by Martin Visbeck and maintained by Gerd Krahmann. External qualified data (CTD, SADCP, GPS) are used to processed LADCP data. For details on the data processing methodology, see reports. Absolute referencing was provided by Global Positioning System (GPS) navigation.

Data

FileSizeFormatProcessingAccessKey
2012 -2022 data
151 MoNetCDFQuality controlled data
Download
 102168
2012 -2021 data
151 MoNetCDFQuality controlled data
 92243
2012 -2020 data
34 MoNetCDFQuality controlled data
 69987
How to cite
Bourles Bernard, Rousselot Pierre, Grelet Jacques, Marin Frederic, Roubaud Fabrice, Bachelier Celine, Gouriou Yves, Llido Jerome (2023). French PIRATA cruises: LADCP data (and processing protocol). SEANOE. https://doi.org/10.17882/71295

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Oceanographic cruises
PIRATA FR29,
PIRATA FR28,
PIRATA FR24,
PIRATA FR25,
PIRATA FR26,
PIRATA FR27,
PIRATA-FR22 LEG1,
PIRATA-FR23 LEG2,
PIRATA FR32,
PIRATA FR31,
PIRATA-FR23 LEG1,
PIRATA FR30,
PIRATA-FR22 LEG2,
PIRATA-FR22 LEG3
Related documents
Tuchen Franz Philip, Brandt Peter, Hahn Johannes, Hummels Rebecca, Krahmann Gerd, Bourlès Bernard, Provost Christine, McPhaden Michael J., Toole John M. (2022). Two Decades of Full-Depth Current Velocity Observations From a Moored Observatory in the Central Equatorial Atlantic at 0°N, 23°W. Frontiers In Marine Science. 9. 910979 (7p.). https://doi.org/10.3389/fmars.2022.910979, https://archimer.ifremer.fr/doc/00782/89439/
Visbeck M. (2001). Deep Velocity Profiling Using Lowered Acoustic Doppler Current Profilers: Bottom-track and Inverse Solutions. JAOT, 17, 794-807.
Related datasets
Bourlès Bernard, Herbert Gaëlle, Rousselot Pierre, Grelet jacques, Llido Jerome (2023). French PIRATA cruises: S-ADCP data. SEANOE. https://doi.org/10.17882/44635
Bourlès Bernard, Llido Jerome, Rousselot Pierre, Habasque Jérémie, Grelet Jacques, Roubaud Fabrice, Bachelier Céline (2023). French PIRATA cruises: MOORING ADCP data. SEANOE. https://doi.org/10.17882/51557
Bourlès BERNARD, Rousselot PIERRE, Grelet JACQUES, Roubaud FABRICE, Bachelier CELINE, Chuchla REMY, Gouriou YVES, Llido Jerome (2023). French PIRATA cruises: CTD-O2 data. SEANOE. https://doi.org/10.17882/51534
Bourles Bernard, Baurand Francois, Hillion Sandrine, Rousselot Pierre, Grelet Jacques, Bachelier Celine, Roubaud Fabrice, Gouriou Yves, Chuchla Remy, Cariou Thierry, Llido Jerome, IRD (2023). French PIRATA cruises: CHEMICAL ANALYSIS data. SEANOE. https://doi.org/10.17882/58141
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