Como Sazise ngaphambili, amandla e-NAO achazwa sisalathiso se-NAO. Isalathiso se-NAO yiyo umahluko phakathi koxinzelelo elwandle phakathi kwezikhululo ezibini ezikufutshane namaziko akumazantsi e-Iceland nakwiiNtaba zeAzores. IStykkisholmur (i-Iceland) isetyenziswa njengesikhululo esisemantla, ngelixa iPonta Delgada (Azores), Lisbon (Portugal) kunye neGibraltar zisetyenziswa njengezikhululo ezisemazantsi.
La Isigaba esifanelekileyo sesalathiso se-NAO izisa ezinye Uxinzelelo oluphezulu kunesiqhelo kwindawo eziphakathi eziphantsi kwetropiki kunye nobunzulu koxinzelelo olusezantsi kwiAtlantic. Ukwanda kumahluko wobushushu kukhokelela kwisaqhwithi sasebusika esixhaphakileyo nesinamandla esiwela uLwandlekazi lweAtlantiki, kunye nentshukumo eqhubela phambili emantla. Ngenxa yoku, kukho ubusika obushushu nobumanzi eYurophu nobusika obomileyo nobubandayo eCanada naseGreenland. Kule meko, iMpuma ye-US ifumana iimeko zobusika ezinobulali kunye nokufuma. Umzekelo, amaqondo aphezulu obusika / entwasahlobo ka-1989, 1990, nango-1995 abangelwa kukufuduswa kwenetha lomoya ukusuka eArctic naseIceland ukuya kwibhanti ekweleenjiko kufutshane neAzores kunye neIberia Peninsula kunye nemimoya yasentshona eyaqina ngaphezulu. uLwandlekazi lweAtlantic. Eminye imimoya eyomeleleyo evela entshona ibangela ukufuma okufudumeleyo kunye nelifudumeleyo kwilizwekazi laseYurophu kwaye kukhokelele kubusika obuselwandle.
La Isigaba esingalunganga sesalathiso se-NAO bonisa Iziko loxinzelelo oluphezulu lwethropikhi kunye neziko le-Icelandic elibuthathaka. Ukuncitshiswa koxinzelelo lwegradient kubangela ukuhamba kancinci kunye nokubuthathaka kokuhamba kwindlela ethe ntshona-mpuma. Baphatha ukufuma komoya ukuya kwiMeditera kwaye ngokungabikho kokumpompoza okunzulu ukusuka entshona ukuya empuma, umoya obandayo waseSiberia unokuhla uye kwiindawo ezisezantsi kakhulu, ke ngoko ukuwa rhoqo kwekhephu kunokwenzeka kumazantsi eYurophu. Nangona kunjalo, iGreenland inobushushu obushushu busika. Amaqondo obusika aphantsi / entwasahlobo ka-1917, 1936, 1963 kunye no-1969 ayenomoya obhudleza entshona ngaphesheya koLwandlekazi lweAtlantiki oluhambelana nobusika obubandayo kunesiqhelo ebusika.
Umthombo: YIMA
enkosi, umdla kakhulu!