NH mean and
anomaly 300-hPa geopotential heights for 1 June – 28 Aug 2018 (posted 30 August 2018):
Hi
all,
To
follow up on a point made in Atm 601 class on 30 Aug about a poleward-shifted
jet in a warming climate, appended are maps of the mean and anomaly 300-hPa
geopotential heights for the NH for 1 June – 28 Aug 2018. The 300-hPa
heights are anomalously high almost everywhere in the higher midlatitude
regions of the NH. At the same, the 300-hPa heights are anomalously low
across much of the Arctic Ocean. This 300-hPa mean and anomaly height
field pattern is consistent with a poleward-shifted jet stream and anomalous
warmth across middle latitude regions. Evidence for this anomalous warmth
can be found in the appended maps of mean and anomaly 850-hPa temperatures for
the NH for 1 June to 28 Aug 2018.
Lance