Tag Archives: Ocean Circulation
Radioactive ‘pooh sticks’ trace carbon’s ocean journey
By Matt McGrath
17 August 2017
Originally published by BBC News
Radioactive iodine from nuclear reprocessing plants in the UK and France has been detected deep in the waters near Bermuda. Continue reading Radioactive ‘pooh sticks’ trace carbon’s ocean journey
CFCs: Noxious for ozone, but luminescent for ocean currents
Scientists recently reported that the ozone hole over Antarctica is showing signs of healing. This wonderful news comes almost 20 years after the Montreal Protocol banned the production and use of clorofluorocarbons (CFCs) in 1987. The decline means that CFCs are finally dropping in concentration in the atmosphere and are either breaking down high in the stratosphere or going into the ocean. Biologically inert, the CFCs in the ocean don’t harm any marine life, but they have proven very useful for oceanographers trying to understand circulation in the deep ocean. Continue reading CFCs: Noxious for ozone, but luminescent for ocean currents
Update on Offshore Seawater Monitoring: Interview with CFAX 1070 AM
Interview with Ian Jessop on CFAX 1070 AM Radio in Victoria about newly published offshore monitoring data from InFORM and our partner project Our Radioactive Ocean. Interview begins at the 33:50 mark of the Soundcloud file below.
May 2015 InFORMal Monitoring Update
Results* from March are now available from 10/12 of the current InFORM sampling locations. Recent samples from Sandspit and Bella Bella are still being processed and data shown are from February. After the positive measurement of Fukushima-derived 134Cs radiation in February at Ucluelet, we expected this signal to spread in samples collected in March. Instead, there is no detectable 134Cs (detection limit ~0.2 Bq m-3) in any of the March samples. Continue reading May 2015 InFORMal Monitoring Update
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