--- cited_by: [] definition: |- The Arctic Oscillation (AO) is the dominant pattern of non-seasonal sea-level pressure (SLP) variations north of 20N, and it is characterized by SLP anomalies of one sign in the Arctic and anomalies of opposite sign centered about 37-45N. Additional information is available for the Arctic Oscillation (AO) and for the North Atlantic Oscillation (NAO), a close relative of the AO (http://jisao.washington.edu/ao/) href: https://data.globalchange.gov/gcmd_keyword/98e5a7e4-b946-474a-8214-c1b7b3e5f976.yaml identifier: 98e5a7e4-b946-474a-8214-c1b7b3e5f976 label: ARCTIC OSCILLATION parent_identifier: b887d3e5-4280-43d2-a34e-0f63ac086b6a uri: /gcmd_keyword/98e5a7e4-b946-474a-8214-c1b7b3e5f976