(2021). CADHYAK surveys : Field observations of hydrodynamics functioning of Koumac Lagoon (New Caledonia - North Province). SEANOE. https://doi.org/10.17882/79616
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CADHYAK surveys : Field observations of hydrodynamics functioning of Koumac Lagoon (New Caledonia - North Province)
Koumac lagoon has been instrumented over a period of 6 months (from December 2019 to May 2020) in order to characterized its hydrodynamics functioning. This lagoon is surrounding by mining activities that may affect and damage its ecosystem. Nineteen sensors have been deployed on moorings to measure and quantify water circulation and exchanges between land, lagoon and ocean (current, temperature, salinity and pressure). CTD profiles have also been performed to observe spatial extent and stratification of water bodies. During the sampling period, two major meteorological events occurred, UESI cyclone (11th February 2020) and GRETEL tropical depression (15th march 2020), 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, Koumac, Lagoon, Hydrodynamics, Circulation, Pressure, Currents, Temperature, Salinity, Waves, Coastal environment, Terrestrial runoffs, Water quality, PRESENCE Project
Location
-20.531659N, -20.719308S, 164.338581E, 164.003498W
Devices
| Sensor | Model | Sampling Rate |
| Currentmeters | ADCP RDI Sentinel V20 | 20 min |
| ADCP RDI Sentinel V50 | 10 min | |
| Marotte HS | 1 min | |
| Temperature / Conductivity | JFE Advantech Infinity CTW | 15 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
| File | Size | Format | Processing | Access | |
|---|---|---|---|---|---|
A02 : Currents, level, temperature | 24 Mo | NetCDF | Quality controlled data | ||
A01 : Currents, level, temperature | 15 Mo | NetCDF | Quality controlled data | ||
J02 : Temperature, salinity | 388 Ko | NetCDF | Quality controlled data | ||
J01 : Temperature, salinity | 260 Ko | NetCDF | Quality controlled data | ||
R03 : Temperature, level, waves | 144 Ko | NetCDF | Quality controlled data | ||
R03 : Temperature, level | 3 Mo | NetCDF | Quality controlled data | ||
R01 : Temperature, level, waves | 169 Ko | NetCDF | Quality controlled data | ||
R01 : Temperature, level | 4 Mo | NetCDF | Quality controlled data | ||
M12 : Currents, temperature | 9 Mo | NetCDF | Quality controlled data | ||
M11 : Currents, temperature | 9 Mo | NetCDF | Quality controlled data | ||
M10 : Currents, temperature | 9 Mo | NetCDF | Quality controlled data | ||
M09 : Currents, temperature | 8 Mo | NetCDF | Quality controlled data | ||
M07 : Currents, temperature | 9 Mo | NetCDF | Quality controlled data | ||
M06 : Currents, temperature | 9 Mo | NetCDF | Quality controlled data | ||
M05 : Currents, temperature | 9 Mo | NetCDF | Quality controlled data | ||
M04 : Currents, temperature | 8 Mo | NetCDF | Quality controlled data | ||
M03 : Currents, temperature | 7 Mo | NetCDF | Quality controlled data | ||
M02 : Currents, temperature | 9 Mo | NetCDF | Quality controlled data | ||
M01 : Currents, temperature | 9 Mo | NetCDF | Quality controlled data | ||
Reef Drifter – December 2019 | 11 Ko | NetCDF | Quality controlled data | ||
CTD profiles - December 2019 | 239 Ko | NetCDF | Quality controlled data | ||
CTD profiles - May 2020 | 205 Ko | NetCDF | Quality controlled data |
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