Fate of terrestrial runoffs on the coastal zone of Noumea (New-Caledonia) : Moorings and CTD profiles

Date 2017
Temporal extent 2016-12-01 -2017-04-30
Author(s) Desclaux Terence1, Soulard BenoitORCID1, Bruyere OrianeORCID1, Petton SebastienORCID2, Royer Florence1, Hubert Clarisse1, Le Tesson Eric1, Lemonnier HuguesORCID1, Schohn Thomas1, Le Gendre RomainORCID1
Affiliation(s) 1 : IFREMER, LEAD-NC, New Caledonia
2 : IFREMER, PFOM, Argenton, France
DOI 10.17882/53974
Publisher SEANOE
Keyword(s) New Caledonia, Noumea, Lagoon, Hydrodynamics, Circulation, Pressure, Currents, Temperature, Salinity, Waves, Coastal environment, Terrestrial runoffs, Water quality, PRESENCE Project
Abstract

As the main city of New Caledonia, Nouméa, rapidly expends, the amount of anthropogenic compounds it releases to the nearby lagoon increases. These human-induced bulks are then transported through terrestrial runoffs and can stress sensitive ecosystems. Besides, the area faces recurring atmospheric extreme events, with more than one cyclone and two tropical depressions every year. The heavy downpours and devastating winds such events carry have the potential to alter the lagoon water mixing and bring human-induced matter up to usually undisturbed areas. Therefore, in order to understand the spatial extent and the propagation kinetics of runoff plumes produced by these events, observations (CTD profiles and pressure, temperature and conductivity moorings) have been conjointly conducted over the 2016-2017 tropical summer (from December to April). During this period the lagoon encountered two major events: Cook cyclone and a moderate tropical depression. 

Sampling strategy available on Sextant - Marine Geographic Information System.

More information on PRESENCE project.

 

Licence CC-BY-NC-ND
Acknowledgments IRD Noumea naval and diving teams (Miguel Clarque, Samuel Tereua, Eric Folcher)
Sensor metadata
Sensor Model Sampling Rate
Temperature / Conductivity JFE Advantech Infinity CTW 15 min
Temperature / Pressure RBR DUO - T.D 1 hour or 1 min
CTD Profiler SBE 19 plus 0.5 sec

 

Data
File Size Format Processing Access
CTD profiles 5 MB NC, NetCDF Quality controlled data Open access
D01 : Temperature, level 3 MB NC, NetCDF Quality controlled data Open access
D01 : Temperature, level, waves 145 KB NC, NetCDF Quality controlled data Open access
D01 : Temperature, salinity 336 KB NC, NetCDF Quality controlled data Open access
B01 : Temperature, level 3 MB NC, NetCDF Quality controlled data Open access
B01 : Temperature, level, waves 145 KB NC, NetCDF Quality controlled data Open access
B01 : Temperature, Salinity 336 KB NC, NetCDF Quality controlled data Open access
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How to cite 

Desclaux Terence, Soulard Benoit, Bruyere Oriane, Petton Sebastien, Royer Florence, Hubert Clarisse, Le Tesson Eric, Lemonnier Hugues, Schohn Thomas, Le Gendre Romain (2017). Fate of terrestrial runoffs on the coastal zone of Noumea (New-Caledonia) : Moorings and CTD profiles. SEANOE. https://doi.org/10.17882/53974