MINERVE 2016/2017

Type Oceanographic cruise
Set This cruise is part of the set MINERVE
Ship L'Astrolabe
Ship owner IPEV
Dates 15/12/2016 - 04/01/2017
Chief scientist(s) TOURATIER Franck , GOYET Catherine

IMAGES_ESPACE-DEV - UMR 228

Université de Perpignan

Via Domitia

52 avenue Paul Alduy

66860 PERPIGNAN

cgoyet@univ-perp.fr

https://images.univ-perp.fr/index.html

DOI 10.17600/16017100
Objective Estimation of evolution trends of the CO2 system in the southern ocean. The goal of the MINERVE programme (measuring variability of CO2 exchanges at the water-air interface), which is based on oceanographic cruises between Hobart (Australia) and Adelie Land (French base in Antarctica) is to observe and understand the seasonal variations in the partial pressure of CO2 (pCO2), of total inorganic carbon and of total alkalinity in surface waters in association with hydrological and biogeochemical measurements taken in situ and with satellite data (temperature, water colour). RV Astrolabe's logistics trips made it possible to access areas which have rarely been studied and document them to better understand the processes which explain pCO2 variations over time and space on a medium scale in Southern Ocean regions. The data collected during these cruises will provide the basis for estimating the inter-annual variability and the mean variation (trend) of the net CO2 flux at the ocean-atmosphere interface. The observations collected during the MINERVE cruises are also used by other teams to limit atmospheric models and validate biogeochemical ones based on general ocean circulation models which try to simulate the ocean carbon cycle over the medium and the long term. The dates of crossings between Hobart and Dumont D'Urville for the XBT shooting cruises were as follows (4 rotations): R1 : 13/12/2016 to 04/01/2017.