Not exact matches
«Analysis of observations indicate that this heat
wave was mainly due to internal
atmospheric dynamical processes that produced and maintained a strong and long - lived blocking event, and that
similar atmospheric patterns have occurred with prior heat
waves in this region.
While the blocking pattern associated with the 2010 event was unusually intense and persistent, its major features were
similar to
atmospheric patterns associated with prior extreme heat
wave events in the region since 1880, the researchers found.
We may yet find that climate change was responsible for how bad the Pakistan floods were, for how much rain fell, but for now, it looks like a
similar atmospheric blocking action that kept storms pretty much in one place, the same action that made eastern Russia have the long deadly heat
wave and Siberia have an opposite cold
wave.
This heating excites
wave trains, or groups of
similar - sized
atmospheric waves, that propagate northward, connecting the central equatorial Pacific to North America.