| Summary: | Progress Code: completed Statement: Data are quality controlled following WOCE guidelines. Flags are included with these data (good=2, bad =4, suspicious =3) and are preliminary. 2008-2009 Season: Plans to install an aerosol sampler have been delayed because the equipment needed to be redesigned to handle Southern Ocean conditions, and there are difficulties getting people to operate the equipment on voyages. It is not certain this part of the project will be possible in 2009/2010. Underway CO2 measurements were made during transits on Aurora Australis voyages, V1, V2(return), V3, and V5. Difficulties affecting project: The aerosol sampler needed to be redesigned to handle the conditions. Particulate contamination from stack gas is also a concern for the aerosol sampling. Flooding of the oceanographic lab due to poor drainage is an ongoing problem and is causing loss of data. A problem with the ship's thermosalinograph when operated in the ice was identified a couple of years ago and is still not corrected, degrading the data quality. Cavitation in the seawater pump is also a problem that will degrade data quality for oxygen and perhaps CO2. While the problem persists it is unlikely oxygen measurements will be of much value on the ship. The underway equipment is usually run by volunteers. The work is not arduous and requires about 20 minutes per day when the ship is underway. The Deputy Voyage Leaders often volunteer, but they are not always available. Organising volunteers and difficulty finding them has resulted in us needing to leave the systems off at times. --- Public Summary from Project --- The Southern Ocean is one the most significant regions on earth for regulating the build up of anthropogenic CO2 in the atmosphere, and the capacity for carbon uptake in the region could be altered by climate change. The project aims to establish a time series of anthropogenic carbon accumulation. The work will be used to identify processes regulating the CO2 uptake and to test models that predict future uptake. ...
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