Memorandum of Understanding available here : MOU_Tonga.pdf

Localisation
The transects and the thermometer are at -12 meters depth on the outer slope.
21°04.046'S/175°20.256'W (conversion DM/DMS)
The wave probe is at -38m.
To be added soon

Program
The Polynesia Mana since 2009

Icon Corail 35px The analysis of the coral cover is done using four methods:
Photo-quadrat coral transect
Coral survey by "manta tow"
Underwater seascape photography
Photogrammetry
You can access to and to the photo quadrats

YearRugosity parallelRugosity perpendicularHeight SD parallelHeight SD perpendicular
20191.7460 (sd 0.0929)1.7485(sd 0.1038)0.18080.1422
20221.4815 (sd 0.0803)1.4533(sd 0.0606)0.15640.1397
20241.4697 (sd 0.0702)1.4705(sd 0.0516)0.17310.1388

Icon Poisson 35px The fish are estimated using ichtyological assessment.
Here are the data
Icon Vague 80px The measures of the waves are done using the the SBE 26 Seagauge wave and tide recorder.
Here are the data
Icon Temp The temperature is recorded using the SBE 26 Seagauge wave and tide recorder (see the previous link to access the data) and also using the SBE 56 Thermometer.
Here are the thermometer data

Tonga 2015
Quadrat n°10 on the outer slope of Tongatapu, in 2015/CRIOBE




3D reconstruction of the site (2019)/CRIOBE


3D reconstruction of the site (2022)/CRIOBE


Click here to access an interactive video to compare 2019 and 2022 (warning 400MB of video)


Historique Tonga
Données brutes de suivi des équipements. Les dates affichées correspondent à la date de modification du fichier informatique en laboratoire.

DateDepartureArrivalInstrument
2013-11-13 07:59:03CRIOBE > TongaCRIOBE > MooreaSBE26 houlographe 1303 - perdue
2013-11-13 08:03:55CRIOBE > MooreaCRIOBE > TongaSBE26 houlographe 1280
2015-10-27 22:18:26CRIOBE > MooreaCRIOBE > TongaSBE26 houlographe 1303 - perdue
2015-11-11 02:32:02CRIOBE > TongaCRIOBE > MooreaSBE26 houlographe 1280
2017-10-18 07:52:19CRIOBE > Tonga (14)CRIOBE > Moorea > CRIOBE (33)SBE26 houlographe 1303 - perdue
2017-10-18 07:53:37CRIOBE > Moorea > CRIOBE (33)CRIOBE > Tonga (14)SBE26 houlographe 1303 - perdue
2019-10-15 02:51:59CRIOBE > Moorea > CRIOBE (33)CRIOBE > Tonga (14)SBE56Temp 1633 - perdue
2019-10-16 23:39:29CRIOBE > Moorea > CRIOBE (33)CRIOBE > Tonga (14)wave Gauge Blue 10-22-01 161062 ou 19-3-14 #003 - perdue
2019-10-27 04:21:23CRIOBE > Tonga (14)CRIOBE > Moorea > CRIOBE (33)SBE26 houlographe 1303 - perdue
2019-10-27 10:38:54CRIOBE > Moorea > CRIOBE (33)CRIOBE > Tonga (14)SBE26 houlographe 1303 - perdue
2022-07-25 23:13:50CRIOBE > Moorea > CRIOBE (33)CRIOBE > Tonga (14)SBE56Temp 3434
2022-08-10 07:46:28CRIOBE > Moorea > CRIOBE (33)CRIOBE > Tonga (14)wave Gauge Blue 1108453 - 20-11-22-002
2024-03-23 02:35:43CRIOBE > Moorea > CRIOBE (33)CRIOBE > Tonga (14)wave Gauge Blue 19-10-23-003


blog mission
Mission octobre 2017
gsiu Thursday October 19, 2017

Retrait du thermographe SBE56 n° et Hobo n°
Changement de houlographe SBE26 n° de série 1303 (reprogrammation sur place)
Commentaires: pas de commentaire particulier

lien vers GLPI

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