Relationships between persistent large-scale flow anomalies and variation in synoptic-scale eddy activity and cyclogenesisObservational analyses to study the relationships between large-scale flow anomalies and variations in synoptic-scale eddy activity and cyclogenesis are presented. The way in which changes in the large-scale flow influence the behavior of synoptic-scale eddies and the way in which changes in eddies may feedback to influence the large-scale flow anomalies are examined. Situations characterized by differing large-scale flows are compared, showing well-defined diferences in synoptic-scale eddy activity. The net forcings of anomalous mean flows by eddies as deduced from tendency methods and E-vector analyses suggest that synoptic-scale eddies may play an important role in maintaining certain anomalous flow patterns such as blocking.
Document ID
19890025243
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Dole, Randall M. (Massachusetts Inst. of Tech. Cambridge, MA, United States)
Neilley, Peter P. (MIT Cambridge, MA, United States)