THE WEATHER AND CIRCULATION OF APRIL 1952'

• Main Authors: Major Donald, E. Martin
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 1952
• Subjects: Arctic; Gulf of Alaska; Pacific; Iceland; Alaska
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.394.6787; http://docs.lib.noaa.gov/rescue/mwr/080/mwr-080-04-0070.pdf

at both 700 mb. (fig. 1) and sea level (Chart XI). At both levels a deep mean trough extended from the Alaskan Arctic to the southeast Pacifk, with greatest negative anomalies centered in the Gulf of Alaska. The low latitude trough observed just south of California may be considered as an eastward extension of the basic trough in the Gulf of Alaska. Thus, this trough tilted strongly from northwest to southeast. This was associated with a splitting of the westerlies and a southward transport of 1 See charts I-XV following page 76 for analyzed climatological data for the month. westerly momentum throughout the eastern Pacific. In eastern North America, on the other hand, the northern and southern streams of westerlies converged into a mean trough with strong tilt from northeast to southwest and extending from Florida to Iceland. The wave length