* About this video*
This is a short introduction to the main challenges our researches face in their investigations on climate variability in the North Atlantic in the NACLIM project naclim.eu This is the first video of three, the others will follow in 2014-2016 and explain the impacts of climate variability on human health (heat stress in cities) and on oceanic ecosystems.
In this video, one of our senior scientist, Mojib Latif of GEOMAR, explains the importance of understanding the mechanisms of climate variability in the North Atlantic area.
Our climate is warming up. Scientists are seeing changes in the climate system that are unprecedented over the last decades to millennia. The atmosphere and ocean have warmed, the amounts of snow and ice have diminished, sea level has risen.
The oceans play big a role in controlling global climate, by distributing heat around the planet.
An important region for this is the North Atlantic Ocean. Ocean currents from the tropics bring warm, salty water northwards into the Arctic. Here, the warm water cools down, and sinks in the deep ocean. As global temperatures increase, Arctic ice melts, increasing the freshwater input to the ocean. This lowers the overall density of the Arctic surface ocean waters, which may slow down or even stop deep water formation.
This would have an impact on the ocean circulation patterns, heat distribution, and ultimately our global climate.
*NACLIM project and this video are funded by the European Commission, through the 7th Framework Programme for Research, Theme 6 Environment, Grant Agreement 308299*