NEMO surveys : Field observations of hydrodynamics functionning of Moindou lagoon (New Caledonia - South Province)

Moindou lagoon has been instrumented over a period of 8 months (from September 2020 to December 2020 (LEG1) and from December 2020 to April 2021 (LEG2)) in order to characterized its hydrodynamics functioning. This lagoon has been registered on the UNESCO World Natural Heritage list in 2008 and it is surrounding by aquaculture activities that may affect and damage its ecosystem. Nineteen sensors have been moored to measure and quantify water circulation and exchanges between land, lagoon and ocean (current, temperature, salinity and pressure). Two cross-shore transects of CTD profiles have also been performed to observe spatial extent and stratification of water bodies. A strong La Niña event occured between december 2020 and may 2021 which engendered prolonged and heavy rainfalls. The second period of deployment (LEG2) is also characterized by several meteorological events such as Lucas tropical depression (3rd February 2021) and Niran cyclone (6th March 2021) which have significantly impacted hydrodynamics.

Sampling strategy available on Sextant.- Marine Geographic Information System.

More informations on PRESENCE project

Moindou lagoon has been instrumented over a period of 8 months (from September 2020 to December 2020 (LEG1) and from December 2020 to April 2021 (LEG2)) in order to characterized its hydrodynamics functioning. This lagoon has been registered on the UNESCO World Natural Heritage list in 2008 and it is surrounding by aquaculture activities that may affect and damage its ecosystem. Nineteen sensors have been moored to measure and quantify water circulation and exchanges between land, lagoon and ocean (current, temperature, salinity and pressure). Two cross-shore transects of CTD profiles have also been performed to observe spatial extent and stratification of water bodies. A strong La Niña event occured between december 2020 and may 2021 which engendered prolonged and heavy rainfalls. The second period of deployment (LEG2) is also characterized by several meteorological events such as Lucas tropical depression (3rd February 2021) and Niran cyclone (6th March 2021) which have significantly impacted hydrodynamics.

Sampling strategy available on Sextant.- Marine Geographic Information System.

More informations on PRESENCE project

Disciplines

Physical oceanography

Keywords

New Caledonia, Moindou, Lagoon, La Niña, Hydrodynamics, Circulation, Pressure, Currents, Temperature, Salinity, Waves, Coastal environment, Terrestrial runoffs, Water quality, PRESENCE Project

Location

-21.626882N, -21.813148S, 165.685977E, 165.415439W

Devices

Sensor Model Sampling Rate
Currentmeters ADCP RDI Sentinel V20 10 min
ADCP RDI Sentinel V50 10 min
Marotte HS 1 min
Temperature / Conductivity

JFE Advantech Infinity CTW

10 min
Temperature / Pressure RBR Duo - T.D 1 hour or 1 min
RBR Duet - T.D 1 hour or 1 min
CTD Profiler SBE 19plusV2 0.25 sec
Lagrangian surface ciruclation Pacific Gyre – Reef Drifter 10 min

 

Data

FileSizeFormatProcessingAccess
A01 : Currents, level, temperature
20 MoNetCDFQuality controlled data
A02 : Currents, level, temperature
14 MoNetCDFQuality controlled data
A03 : Currents, level, temperature
20 MoNetCDFQuality controlled data
A04 : Currents, level, temperature
20 MoNetCDFQuality controlled data
J01 : Temperature, salinity
283 KoNetCDFQuality controlled data
J02 : Temperature, salinity
295 KoNetCDFQuality controlled data
J03 : Temperature, salinity
283 KoNetCDFQuality controlled data
M01 : Currents, temperature
6 MoNetCDFQuality controlled data
M02 : Currents, temperature
4 MoNetCDFQuality controlled data
M03 : Currents, temperature
2 MoNetCDFQuality controlled data
M04 : Currents, temperature
5 MoNetCDFQuality controlled data
M05 : Currents, temperature
2 MoNetCDFQuality controlled data
M06 : Currents, temperature
6 MoNetCDFQuality controlled data
M07 : Currents, temperature
3 MoNetCDFQuality controlled data
M08 : Currents, temperature
4 MoNetCDFQuality controlled data
M09 : Currents, temperature
4 MoNetCDFQuality controlled data
M10 : Currents, temperature
2 MoNetCDFQuality controlled data
M11 : Currents, temperature
6 MoNetCDFQuality controlled data
R01 : Temperature, level, waves
229 KoNetCDFQuality controlled data
R01 : Temperature, level
5 MoNetCDFQuality controlled data
R02 : Temperature, level, waves
193 KoNetCDFQuality controlled data
R02 : Temperature, level
4 MoNetCDFQuality controlled data
R03 : Temperature, level, waves
227 KoNetCDFQuality controlled data
R03 : Temperature, level
5 MoNetCDFQuality controlled data
Reef Drifter – December 2020
18 KoNetCDFQuality controlled data
Reef Drifter – September 2020
10 KoNetCDFQuality controlled data
CTD profiles - April 2021
94 KoNetCDFQuality controlled data
CTD profiles - December 2020
72 KoNetCDFQuality controlled data
CTD profiles - September 2020
72 KoNetCDFQuality controlled data
How to cite
Bruyère Oriane, Soulard Benoit, Bourassin Emmanuel, Le Gendre Romain (2021). NEMO surveys : Field observations of hydrodynamics functionning of Moindou lagoon (New Caledonia - South Province). SEANOE. https://doi.org/10.17882/81063

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