Linkages of climatic anomalies in the North Pacific, Asia at temperate latitudes, IndoPacific and Arctic oceans
Svetlana P. Shkorba1, Vladimir I. Ponomarev1, Elena V. Dmitrieva1 and Lubov N. Kuimova2
1
V.I. Il’ichev Pacific Oceanological Institute FEB RAS, Vladivostok, Russia. E-mail: sshkorba@yandex.ru
Limnological institute, Siberian Branch of Russian Academy of Sciences, Irkutsk, Russia
2
The main goal of our study is to reveal and compare regional climate variability at various time scales in
different areas of the North Pacific, Asia at temperate latitudes, the tropical Indo-Pacific and Arctic
oceans. The study is based on statistical analyses of the observation records. We use time series of Hadley
SST, surface heat fluxes, wind and atmospheric pressure fields (SLP), and different climatic indices.
Time series of ice extent in the Japan and Okhotsk seas and ice thickness in the Baykal Lake are used as
indicators of regional climate variability in the large-scale subarctic marginal area and continental South
Siberia region. The decadal and interdecadal climate oscillation in the Japan and Okhotsk seas, as
compared to the Northeast Pacific and South Siberia (Lake Baikal) regions, has a reversed phase.
Alternating cold/warm decadal anomalies in different longitude zones of the North Asian Pacific are
accompanied by alternating meridional winds and SLP anomalies at temperate latitudes. Alternating
zones of inversed anomalies in temperate latitudes of the Asian Pacific are related to teleconnections with
anomalies in both Arctic and Indo-Pacific oceans. Positive SSTA in the central and eastern tropicalequatorial Pacific accompanies negative anomalies of northern wind and ice extent in the Japan and
Okhotsk seas in mid-winter. At both interannual and decadal time scales a significant link of winter
climatic anomalies in South Siberia is found with SST, SLP and net heat flux anomalies in the Indian
Ocean and certain areas of the Pacific Ocean.