CADHYAK surveys : Field observations of hydrodynamics functioning of Koumac Lagoon (New Caledonia - North Province)

Date 2021-03-19
Temporal extent 2019-12-10 -2020-05-27
Author(s) Bruyere OrianeORCID1, Le Gendre RomainORCID1, Bourassin EmmanuelORCID1, Petton SebastienORCID2, Soulard BenoitORCID1
Affiliation(s) 1 : IFREMER, LEAD-NC, New Caledonia
2 : IFREMER, PFOM, Argenton, France
DOI 10.17882/79616
Publisher SEANOE
Keyword(s) New Caledonia, Koumac, Lagoon, Hydrodynamics, Circulation, Pressure, Currents, Temperature, Salinity, Waves, Coastal environment, Terrestrial runoffs, Water quality, PRESENCE Project
Abstract

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.

Licence CC-BY-NC
Acknowledgements Rêve Bleu diving - Service des milieux et ressources aquatiques - Province Nord (Nouvelle-Calédonie) - Gilbert Sarrailh
Sensor metadata
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
CTD profiles 238 KB NC, NetCDF Quality controlled data Open access
CTD profiles 204 KB NC, NetCDF Quality controlled data Open access
A02 : Currents, level, temperature 24 MB NC, NetCDF Quality controlled data Open access
A01 : Currents, level, temperature 15 MB NC, NetCDF Quality controlled data Open access
J02 : Temperature, salinity 388 KB NC, NetCDF Quality controlled data Open access
J01 : Temperature, salinity 260 KB NC, NetCDF Quality controlled data Open access
R03 : Temperature, level, waves 144 KB NC, NetCDF Quality controlled data Open access
R03 : Temperature, level 3 MB NC, NetCDF Quality controlled data Open access
R01 : Temperature, level, waves 169 KB NC, NetCDF Quality controlled data Open access
R01 : Temperature, level 4 MB NC, NetCDF Quality controlled data Open access
M12 : Currents, temperature 9 MB NC, NetCDF Quality controlled data Open access
M11 : Currents, temperature 9 MB NC, NetCDF Quality controlled data Open access
M10 : Currents, temperature 9 MB NC, NetCDF Quality controlled data Open access
M09 : Currents, temperature 8 MB NC, NetCDF Quality controlled data Open access
M07 : Currents, temperature 9 MB NC, NetCDF Quality controlled data Open access
M06 : Currents, temperature 9 MB NC, NetCDF Quality controlled data Open access
M05 : Currents, temperature 9 MB NC, NetCDF Quality controlled data Open access
M04 : Currents, temperature 8 MB NC, NetCDF Quality controlled data Open access
M03 : Currents, temperature 7 MB NC, NetCDF Quality controlled data Open access
M02 : Currents, temperature 9 MB NC, NetCDF Quality controlled data Open access
M01 : Currents, temperature 9 MB NC, NetCDF Quality controlled data Open access
Reef Drifter – December 2019 11 KB NC, NetCDF Quality controlled data Open access
Top of the page

How to cite 

Bruyere Oriane, Le Gendre Romain, Bourassin Emmanuel, Petton Sebastien, Soulard Benoit (2021). CADHYAK surveys : Field observations of hydrodynamics functioning of Koumac Lagoon (New Caledonia - North Province). SEANOE. https://doi.org/10.17882/79616