Sentences with phrase «observed negative phase»

Not exact matches

You just need to add that more zonal jets when the sun is active widen the subtropical high pressure cells and allow more energy into the oceans to skew Enso in favour of El Nino over and above the basic 60 year periodicity so as to get the observed millennial climate cycling.and the temperature stepping from one PDO positive or negative phase to the next.

For falsification we would need to observe events such as the mid latitude jets moving poleward during a cooling oceanic phase and a period of quiet sun or the ITCZ moving northward whilst the two jets moved equatorward or the stratosphere, troposphere and upper atmosphere all warming or cooling in tandem or perhaps an unusually negative Arctic Oscillation throughout a period of high solar activity and a warming ocean phase.

The presented method for empirical modeling of the rVTEC response to the geomagnetic activity is able to satisfactorily model the observed responses with similar amplitudes of both positive and negative phases because of the availability of two delayed mechanisms with different time constants.

The observed influence of the NAO on extreme precipitation is largest in eastern North America, with the likelihood of a negative phase extreme rainfall event decreased in the north and increased in the south under the positive phase of the NAO.

A more frequent or more pronounced negative phase (as observed to a record extent during the very low solar minimum between cycles 23 and 24) is associated with a less active Sun due to warming of the polar stratosphere (more mesospheric ozone descending through the polar vortex).

Hence, tropical Pacific forcing of the atmosphere such as that associated with a negative phase of the PDO produces many of the pronounced atmospheric circulation anomalies observed globally during the hiatus.

The pattern is also associated with the negative phase of the Arctic Oscillation, which is the dominant atmospheric pattern observed during severe winters and comprises a weakened jet stream and more cold air intrusions southward from the Arctic into North America and Eurasia.

Some of the effects appear to be mediated by shifts in the North Atlantic Oscillation to a negative phase, similar to what has been observed in winters of the past fewyears.

The results showed that the children's aggressive behavior decreased during the course and especially over the following year - long practice phase, as did the number of negative mother — child interactions observed.