Tsinkaye na Arewacin Pacific

North Pacific Oscillation (NPO) tsari ne na Haɗin kai wanda Walker da Bliss suka fara bayyanawa  kuma ana nuna shi ta hanyar arewa maso kudu a matsin lamba a kan Tekun Arewacin Pacific. Rogers, ta amfani da yanayin zafi daga St. Paul, Alaska, da Edmonton, sun gano matakai biyu na NPO, wani Aleutian a ƙasa (AB) wanda ya dace da zurfi da gabas ya sauya Aleutian Low da Aleutian sama (AA) wanda shine akasin haka.

A lokacin da ya dace (AB), matsin lamba na teku yana ingantawa a kan babban yanki a cikin subtropics wanda ya kai ga pole zuwa 40N ° kuma ya rage a mafi girman latitudes, ana inganta yammacin yamma a kan tsakiyar Pacific kuma zafin hunturu yana da sauƙi a yawancin iyakar yammacin Arewacin Amurka amma ya fi sanyi fiye da yadda aka saba a Gabashin Siberia da Amurka Kudu maso Yamma, hazo ya fi na Alaska da Great Plains. Sakamakon NPO yana yaduwa cikin subtropics da tropics ta hanyar wani yanayin yanayi, yanayin Pacific Meridional . [1] North Pacific Gyre Oscillation (NPGO) shine bayyanar teku na NPO.[2]

 Dubi kuma 

 Tsinkaye na shekaru goma na Pacific
 Yanayin Kudancin Pacific
 El Niño-Southern Oscillation (ENSO) 

 Manazarta 

 Haɗin na waje 

 Gidan yanar gizon NPGO / NPO