Continentality and Oceanity in the Mid and High Latitudes of the Northern Hemisphere and Their Links to Atmospheric Circulation

• DOI: 10.1155/2018/5746191
• Publication Date: 2018-09-30T19:31:57Z
• Authors: Edvinas Stonevicius; Gintautas Stankun...; Egidijus Rimkus
• Keywords: Archipelago

The climate continentality or oceanity is one of the main characteristics local climatic conditions, which varies with global and regional change. This paper analyzes indexes oceanity, as well their variations in middle high latitudes Northern Hemisphere period 1950–2015. Climatology changes are examined using Conrad’s Continentality Index (CCI) Kerner’s Oceanity (KOI). impact teleconnection patterns on continentality/oceanity conditions was also evaluated. According to CCI, more significant Northeast Siberia lower along Pacific coast North America coastal areas northern part Atlantic Ocean. However, according KOI, do not precisely correspond those low appearing south west identified by CCI. spatial thus seem be different. a statistically increase has only been found Siberia. In contrast, western majority Asia, weakened. become increasingly continental Europe East Asia. increased Canadian Arctic Archipelago some parts Mediterranean region. Changes were primarily related temperature coldest month consequence atmospheric circulation: positive phase Oscillation (NAO) (EA) dominated winter recent decades. Trends may connected diminishing extent seasonal sea ice an associated surface temperature.