In
1900,
the
International
Latitude
Service started
to monitor the
wobbling and
wandering of
the North Pole.
Since that year,
the North Pole
has been moving
south. In everyday
terminology, it has
moved secularly on the
Earth’s surface in the only
direction it knows, i.e.,
south. The total motion has
been about 13.5 meter over
the past 100+ years, which
in other words amounts to an
amazing rate of 13 cm per year
or about 1 cm per month. This
would mean that South Pole has
the “opposite” motion. Checking the
data sets further, the 100+ year journey
has been a southerly zigzagging
sojourn, where at present the Pole’s
path is along 333° East Longitude.
From the above, my interpretations are:
Changing Latitude – The southerly moving of the North Pole would directly be changing our geodetic latitude by about ± 0.005 arcsec/ year. Of course, if the latitude would increase in an area of the Earth, it would decrease on the corresponding opposite area.
Regional Cooling or Warming - From
the 14 m total motion in the past
century and considering the present rate,
it is expected
that North
Pole would
be another 6
to7 m further
south over the
next 50 years. In
the northern hemisphere,
this would simply mean that
North Pole is closing on
towards North America
and Greenland and
thus should be
“cooling” them.
For the Siberia,
the opposite would
be happening.
In the southern
hemisphere, the South Pole
would be moving further north and
closing on Australia. Thus, southern
Australia would also be “cooling”.
For the effect on our “Good
Coordinates”, I, as a geodesist, am sure
of the interpretation. However, I have
a query to the scientists researching
global warming whether they have
taken into consideration the impact on
regional weather due to this natural
phenomena. |