{"id":3869,"date":"2025-02-10T12:47:16","date_gmt":"2025-02-10T16:47:16","guid":{"rendered":"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/?page_id=3869"},"modified":"2025-02-10T13:53:45","modified_gmt":"2025-02-10T17:53:45","slug":"updated-aoo-index","status":"publish","type":"page","link":"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/results\/arctic-ocean-oscillation-index-aoo\/updated-aoo-index\/","title":{"rendered":"Updated Arctic Ocean Oscillation Index (AOO)"},"content":{"rendered":"\n\n\t

Updated Arctic Ocean Oscillation Index (AOO)<\/h1>\n\t

The AOO is non-dimensional: x1.E-6 (ssh difference (cm) between closed SSH isolines in the BG region divided by distance between these isolines (cm). Positive AOO index corresponds to anticyclonic circulation and a negative index corresponds to cyclonic circulation.<\/p>\n\t\n\n\n\n\t\n\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t
Year<\/th>AOO Index<\/th>\n<\/tr>\n<\/thead>\n
1946.<\/td>5.00<\/td>\n<\/tr>\n
1947.<\/td>3.33<\/td>\n<\/tr>\n
1948.<\/td>2.50<\/td>\n<\/tr>\n
1949.<\/td>2.38<\/td>\n<\/tr>\n
1950.<\/td>2.78<\/td>\n<\/tr>\n
1951.<\/td>2.86<\/td>\n<\/tr>\n
1952.<\/td>2.00<\/td>\n<\/tr>\n
1953.<\/td>-3.89<\/td>\n<\/tr>\n
1954.<\/td>-2.78<\/td>\n<\/tr>\n
1955.<\/td>-1.25<\/td>\n<\/tr>\n
1956.<\/td>-2.86<\/td>\n<\/tr>\n
1957.<\/td>-2.00<\/td>\n<\/tr>\n
1958.<\/td>1.33<\/td>\n<\/tr>\n
1959.<\/td>1.25<\/td>\n<\/tr>\n
1960.<\/td>3.33<\/td>\n<\/tr>\n
1961.<\/td>2.59<\/td>\n<\/tr>\n
1962.<\/td>1.43<\/td>\n<\/tr>\n
1963.<\/td>-1.33<\/td>\n<\/tr>\n
1964.<\/td>-1.25<\/td>\n<\/tr>\n
1965.<\/td>-1.33<\/td>\n<\/tr>\n
1966.<\/td>-0.83<\/td>\n<\/tr>\n
1967.<\/td>-1.67<\/td>\n<\/tr>\n
1968.<\/td>-2.00<\/td>\n<\/tr>\n
1969.<\/td>-1.67<\/td>\n<\/tr>\n
1970.<\/td>-1.85<\/td>\n<\/tr>\n
1971.<\/td>-1.25<\/td>\n<\/tr>\n
1972.<\/td>2.22<\/td>\n<\/tr>\n
1973.<\/td>3.33<\/td>\n<\/tr>\n
1974.<\/td>1.67<\/td>\n<\/tr>\n
1975.<\/td>2.00<\/td>\n<\/tr>\n
1976.<\/td>2.22<\/td>\n<\/tr>\n
1977.<\/td>3.33<\/td>\n<\/tr>\n
1978.<\/td>1.67<\/td>\n<\/tr>\n
1979.<\/td>2.00<\/td>\n<\/tr>\n
1980.<\/td>-1.67<\/td>\n<\/tr>\n
1981.<\/td>-1.11<\/td>\n<\/tr>\n
1982.<\/td>-1.67<\/td>\n<\/tr>\n
1983.<\/td>-1.67<\/td>\n<\/tr>\n
1984.<\/td>-2.00<\/td>\n<\/tr>\n
1985.<\/td>2.38<\/td>\n<\/tr>\n
1986.<\/td>2.22<\/td>\n<\/tr>\n
1987.<\/td>2.86<\/td>\n<\/tr>\n
1988.<\/td>2.22<\/td>\n<\/tr>\n
1989.<\/td>-5.00<\/td>\n<\/tr>\n
1990.<\/td>-1.90<\/td>\n<\/tr>\n
1991.<\/td>-2.38<\/td>\n<\/tr>\n
1992.<\/td>-1.67<\/td>\n<\/tr>\n
1993.<\/td>-0.33<\/td>\n<\/tr>\n
1994.<\/td>-3.33<\/td>\n<\/tr>\n
1995.<\/td>-1.67<\/td>\n<\/tr>\n
1996.<\/td>-2.33<\/td>\n<\/tr>\n
1997.<\/td>0.57<\/td>\n<\/tr>\n
1998.<\/td>2.50<\/td>\n<\/tr>\n
1999.<\/td>1.79<\/td>\n<\/tr>\n
2000.<\/td>0.83<\/td>\n<\/tr>\n
2001.<\/td>1.52<\/td>\n<\/tr>\n
2002.<\/td>0.62<\/td>\n<\/tr>\n
2003.<\/td>0.83<\/td>\n<\/tr>\n
2004.<\/td>1.67<\/td>\n<\/tr>\n
2005.<\/td>1.52<\/td>\n<\/tr>\n
2006.<\/td>0.95<\/td>\n<\/tr>\n
2007.<\/td>3.39<\/td>\n<\/tr>\n
2008.<\/td>1.88<\/td>\n<\/tr>\n
2009.<\/td>1.39<\/td>\n<\/tr>\n
2010.<\/td>1.00<\/td>\n<\/tr>\n
2011.<\/td>1.04<\/td>\n<\/tr>\n
2012.<\/td>0.83<\/td>\n<\/tr>\n
2013.<\/td>1.11<\/td>\n<\/tr>\n
2014.<\/td>1.54<\/td>\n<\/tr>\n
2015.<\/td>1.44<\/td>\n<\/tr>\n
2016.<\/td>1.89<\/td>\n<\/tr>\n
2017.<\/td>0.38<\/td>\n<\/tr>\n
2018.<\/td>0.83<\/td>\n<\/tr>\n
2019.<\/td>1.25<\/td>\n<\/tr>\n
2020.<\/td>0.42<\/td>\n<\/tr>\n
2021.<\/td>0.83<\/td>\n<\/tr>\n
2022.<\/td>1.67<\/td>\n<\/tr>\n
2023.<\/td>1.11<\/td>\n<\/tr>\n
2024.<\/td>1.25<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\t\t\t\t\"Updated\n\t\tUpdated 1946-2024 AOO index\n\n","protected":false},"excerpt":{"rendered":"

Updated Arctic Ocean Oscillation Index (AOO) The AOO is non-dimensional: x1.E-6 (ssh difference (cm) between closed SSH isolines in the BG region divided by distance between these isolines (cm). Positive AOO index corresponds to anticyclonic circulation and a negative index corresponds to cyclonic circulation. Updated 1946-2024 AOO index<\/p>\n","protected":false},"author":188,"featured_media":0,"parent":1108,"menu_order":3,"comment_status":"closed","ping_status":"closed","template":"tpl-sidebar.php","meta":{"advanced-sidebar-menu\/link-title":"Updated AOO Index","advanced-sidebar-menu\/exclude-page":false},"_links":{"self":[{"href":"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/wp-json\/wp\/v2\/pages\/3869"}],"collection":[{"href":"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/wp-json\/wp\/v2\/users\/188"}],"replies":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/wp-json\/wp\/v2\/comments?post=3869"}],"version-history":[{"count":3,"href":"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/wp-json\/wp\/v2\/pages\/3869\/revisions"}],"predecessor-version":[{"id":3881,"href":"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/wp-json\/wp\/v2\/pages\/3869\/revisions\/3881"}],"up":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/wp-json\/wp\/v2\/pages\/1108"}],"wp:attachment":[{"href":"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/wp-json\/wp\/v2\/media?parent=3869"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}