Abstract: Midlatitude disturbances such as intense cold fronts and cutoff lows are a very important cause of severe-weather events over the southern part of South America, particularly during the austral winter months. Behind cold ...

Abstract: The most active winter synoptic-scale wave patterns over South America are identified using an extended empirical orthogonal function (EEOF) technique and are physically diagnosed using composite methods. Results show that ...

Abstract: The main synoptic-scale circulation anomaly pattern over extratropical South America during the austral spring (September?November) is identified by means of rotated extended empirical orthogonal function techniques, applied ...