Initial Analysis on Arctic Data | Catlin Arctic Survey
Data from Catlin Arctic Survey 2011, collected during an eight-week expedition from March to May, indicates the temperature of Arctic seawater below 200 metres depth has decreased by a ‘surprising’ one degree Celsius in comparison with previous observations.
This may conversely be accelerating the Arctic sea ice melt, which could have a knock-on effect for the currents that circulate heat and nutrients around the world’s oceans.
He continued: “What was most surprising was the degree of change; even the most incremental differences in ocean temperatures matter. To put this temperature change in context, global sea temperatures rose by only 0.25 of a degree Celsius in the last 30 to 40 years but this was enough for the IPCC’s Fourth Assessment Report to state the oceans are warming.”