the Warming of the oceans is accelerating and will have an impact for the world's climate, says researcher of the report that has been published in the scientific journal Science.
the Study, which is a compilation and examination of the four scientific reports, shows that ocean heat is increasing so much that it matches the forecasts contained in the climate models, which so far has not been demonstrated.
"What's important is that it shows a better consistency with the climate models available, previous surveys have shown lower results than the models," says Ola Kalén, oceanographer at SMHI.
– the Result is due to two reasons; firstly, they have corrected some of the instruments and made the measurements better, and they have used statistical methods better and have been able to cover up for gaps in the measurement series.
than colder, it is called the coefficient of thermal expansion, and according to the study, only the warming of the oceans is likely to mean that the sea level rises 30 centimeters by the year 2100. This is not a rise because of melting land ice and glaciers included. Included the so, can the increase be up to a metre at the end of the century, according to UN estimates.
today, the sea level has risen by approximately 20 centimetres since pre-industrial times. More than half of the increase is estimated to be due to rising water temperatures, while the rest is caused by the melting of the ice.
in Addition to the rising sea levels will lead to warmer oceans to more extreme weather events. Storms and hurricanes are amplified. It will also be cooler precipitation.
– While 2018 was the fourth hottest year recorded on land, it will certainly be the warmest year that has been measured in the oceans, as well as the 2017 and 2016 have been there in the past. The effects of global warming are much easier to detect in the oceans than on land, " says Zeke Hausfather, co-author of the report and a doctoral student at the University of California to the british newspaper the Guardian.
more reliable measure of climate change is Ola Kalén with:
– the Heat in the ocean varies much less than on land, so the process is easier to follow in the sea. It has been a much more even heating of the oceans, with less variation from year to year, " he says.
the World's oceans play a major role in mitigating the effects of climate change. So far, they have served as an effective buffer to catch up over 90 per cent of the volume of surplus heat that greenhouse gas emissions have caused.
scientific report where for the first time scientists had successfully reconstructed a time series from 1871 on ocean heating.
"it shows that The warming of the oceans has been going on a long time, the increase started around 1910-1920 and has kept on since then," says Ola Kalén.
" I think the oceans role in climate change will increase, it is an important part of the climate system. Much of what happens has been underestimated due to the absence of measurements, it has been made much more measurements in the country, " says Ola Kalén.