The Weather and Circulation of February 1966-Strong Blocking Over the Atlantic

• Main Author: Raymond A. Green
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 1966
• Subjects: Arctic; Canada; Greenland; New Siberian Islands; Beaufort Sea; Davis Strait; Kamchatka; Alaska
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.395.2629; http://docs.lib.noaa.gov/rescue/mwr/094/mwr-094-05-0345.pdf

Unusually strong blocking dominated the mean circulation of the Arctic, the Atlantic, and northern Eurasia this month (figs. 1, 2). The most outstanding feature of the blocking regime was a deep mean Low in the Atlantic, where the height anomaly at 700 mb. reached-720 ft., the largest negative departure of record for February. Eastward from the Low a zonally-oriented trough, and associated band of negative height anomalies, extended across northern Eurasia, Kamchatka, and the Beaufort Sea to northern Canada. This trough nearly encircled the Arctic, where the circulation was anticyclonic with one blocking High over eastern Greenland and another High near the New Siberian Islands. The shift of blocking Highs toward the Eurasian sector of the hemisphere from January positions over Alaska and Davis Strait resulted in a northward shift of the