Lagoon hydrodynamics of pearl farming islands in French Polynesia : the case of Gambier Islands

Gambier Islands has been instrumented over a period of 9 months (from June 2019 to late February 2020) separated into 2 Legs. Physical process such as water level, wave climate, currents ciruclation in deep channels, exchanges between intra-lagoons and water column stratification have been measured to characterized the hydrodynamic functioning of this opened pearl farming group of islands. The sampling strategy principally focused on the Rikitea lagoon and on lagoons surroundings Mangareva and Aukena Islands. To do so, autonomous oceanographic instruments measuring at high sampling frequency were deployed on bottom moored stations.

Sampling strategy available on Sextant - Marine Geographic Information System.

More informations on ANR MANA project.

Gambier Islands has been instrumented over a period of 9 months (from June 2019 to late February 2020) separated into 2 Legs. Physical process such as water level, wave climate, currents ciruclation in deep channels, exchanges between intra-lagoons and water column stratification have been measured to characterized the hydrodynamic functioning of this opened pearl farming group of islands. The sampling strategy principally focused on the Rikitea lagoon and on lagoons surroundings Mangareva and Aukena Islands. To do so, autonomous oceanographic instruments measuring at high sampling frequency were deployed on bottom moored stations.

Sampling strategy available on Sextant - Marine Geographic Information System.

More informations on ANR MANA project.

Disciplines

Physical oceanography

Keywords

French Polynesia, Tuamotu, GAMBIER, Island, Hydrdynamics, Circulation, Pressure, Currents, Temperature, Waves, Pearl Farming, MANA project

Location

-22.925385N, -23.386406S, -134.678866E, -135.238829W

Devices

Sensor Model Sampling Rate
Currentmeters ADCP RDI Sentinel V20 10 min
ADCP RDI Sentinel V50 20 min

Aquadopp Nortek

10 min

Marotte HS

1 min

Temperature / Pressure

RBRduet T.D 1 hour or 1 min
Temperature

Sea Bird SBE56

10 sec

 

Data

FileSizeFormatProcessingAccess
ADCP_1 : Currents, level, temperature
4 MoNetCDFQuality controlled data
ADCP_2 : Currents, level, temperature
10 MoNetCDFQuality controlled data
ADCP_3 : Currents, level, temperature
10 MoNetCDFQuality controlled data
ADCP_4 : Currents, level, temperature
10 MoNetCDFQuality controlled data
Aqua1 : Currents, level
9 MoNetCDFQuality controlled data
Aqua2 : Currents, level
4 MoNetCDFQuality controlled data
P01 : Currents, temperature
6 MoNetCDFQuality controlled data
P02 : Currents, temperature
3 MoNetCDFQuality controlled data
P03 : Currents, temperature
3 MoNetCDFQuality controlled data
L01_3m : Temperature
8 MoNetCDFQuality controlled data
L01_21m : Temperature
7 MoNetCDFQuality controlled data
L02_4m : Temperature
8 MoNetCDFQuality controlled data
L02_21m : Temperature
7 MoNetCDFQuality controlled data
L03_3m : Temperature
8 MoNetCDFQuality controlled data
L03_23m : Temperature
7 MoNetCDFQuality controlled data
L04_3m : Temperature
8 MoNetCDFQuality controlled data
L04_22m : Temperature
7 MoNetCDFQuality controlled data
L01 : Temperature, level, waves
189 KoNetCDFQuality controlled data
L01 : Temperature, level
4 MoNetCDFQuality controlled data
L02 : Temperature, level, waves
205 KoNetCDFQuality controlled data
L02 : Temperature, level
5 MoNetCDFQuality controlled data
L03 : Temperature, level, waves
183 KoNetCDFQuality controlled data
L03 : Temperature, level
4 MoNetCDFQuality controlled data
L04 : Temperature, level, waves
184 KoNetCDFQuality controlled data
L04 : Temperature, level
4 MoNetCDFQuality controlled data
O01 : Temperature, level, waves
183 KoNetCDFQuality controlled data
O01 : Temperature, level
4 MoNetCDFQuality controlled data
O02 : Temperature, level, waves
182 KoNetCDFQuality controlled data
O02 : Temperature, level
4 MoNetCDFQuality controlled data
O03 : Temperature, level, waves
183 KoNetCDFQuality controlled data
O03 : Temperature, level
4 MoNetCDFQuality controlled data
O04 : Temperature, level, waves
184 KoNetCDFQuality controlled data
O04 : Temperature, level
4 MoNetCDFQuality controlled data
O05 : Temperature, level, waves
185 KoNetCDFQuality controlled data
O05 : Temperature, level
4 MoNetCDFQuality controlled data
How to cite
Andrefouet Serge, Bruyère Oriane, Liao Vetea, Le Gendre Romain (2023). Lagoon hydrodynamics of pearl farming islands in French Polynesia : the case of Gambier Islands. SEANOE. https://doi.org/10.17882/94148

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