The temporal variability of North Pacific Ocean surface cyclones is presented, based upon a nine cold-season dataset from the National Meteorological Center. Our results show that: (1) January is the most active month for oceanic cyclone activity; the most active zone of the cyclonic characteristics is at its southernmost location in January; (2) Interannual variability of cyclone activity is pronounced. The interannual variability of cyclone activity is predominantly stronger than the seasonal variability; (3) Analyses of objectively defined regimes, defined on the basis of a 30-day clustering of surface cyclone activity, reveal that regional climatological anomalies of surface cyclone frequency, significant at the 95% level of confidence, can be identified as precursors to the onset of these 30-day circulation regimes.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.60060 |
| Date | January 1990 |
| Creators | Li, Tianshi |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Science (Department of Meteorology.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 001235357, proquestno: AAIMM67785, Theses scanned by UMI/ProQuest. |
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