National Snow and Ice Data Center (NSIDC) region above the Arctic Circle, the Arctic been 1,000 km further south https://nsidc.org/ http://nsidc.org/cryosphere/arctic-meteorology/arctic.html NSIDC: What is the Arctic? National Snow and Ice Data Center (NSIDC) some scientists Arktiku Arctic Circle (commonly) defined as the Arctic circle Arctic Circle (commonly) defined as the Arctic circle Arctic Circle Arctic Isotherm Arctic Circle cryosphere Missä sitten kulkee Arktiksen raja? /arctic-meteorology/arctic.html Arctic Circle Arctic Circle