March 2013 snow in the
Did human activities contributed?
Posted: 26 March 2013 (ocl 10_2)
by Dr. Arnd Bernaerts
might have heard we’ve had a bit of snow in the
in the last few days”, opens Verity Jones her post, titled:
“Master of understatement”
reproducing a map by BBS/Met showing the snow areas (Fig. 1): That
is an exceptional situation in late March. Rightly the post requires
a proper recording by Met Office.
Other wonder how this scenario fist into a global warming
big surprise should address the question, how such a weather
phenomenon can happen, and why science is still not able to explain
the underlying mechanism, which has caused the situation. Already many
suggestions are in the air, NAO, Jet-Stream, too low ice-cover in
the Barents Sea, but little about the role of the oceans in general
and the North- and
Let’s have a look at the
, which has been cold in March Fig. 2 & 3 (see also a recent
2, SST, March 8,
3, SST, March 21,
4, SST, March 23,
5, SST, March 26,
During March North Sea SST anomalies increased to a very
significant low level (Fig. 4 & 5). The impact on adjacent
countries will be significantly, when moisture and cold air clash.
This had been the case in
during the last weekend (Fig. 1) and may continue as ITV/UK reports:
“Snow could affect central
for up to 36 hours” [Last
updated Tue 26 Mar 2013] :
____”A band of heavy
rain spreading Northwards across the
will hit the cold air that has been with us all week, turning to
snow through the early hours of this morning. Snow will be heavy and
persistant for some, especially in the
. The snow could affect a broad swathe of central Britain for up to
36 hours, with the risk of severe disruption to transport and power
The text is supported by Figures 6 & 7.
Fig. 6; Forecast 26 March/+
7; Forecast 26 March/+
8; Met/UK forecast 26/27March
The Met-Office forecast for today and tomorrow is given in Fig.
8. A contributing
link between the sub-cold North Sea conditions (Fig. 2-5) and the wintry March in north-west
can be easily be established. What meteorologist/climatologist
should now be able to explain, why the
and westerly Baltic are so cold, and whether it is partly due to
anthropogenic causes. At this time of the year the regional sea
areas have lost the entire heat stored during the previous summer.
Any human activities, whether shipping, fishing, off-shore wind
farms will significantly increase evaporation and cooling down the
sea water. It seems time
to know exactly how much human activity in adjacent sea areas has
contributed to the extraordinary weather condition from
during March 2013.
Winter 2012/13; North- and Baltic Sea
cold March 2013 and any anthropogenic contribution
needs to be investigated and explained!
2012/13 and discussion at :
April 2013: Met-Off
loose talk on cold March 2013?
North and Baltic Sea should not be ignored! (ocl_9-8)
11. April 2013: 'Urgent'
need to see if Arctic affects UK extreme cold? No! MetOffice should
investigate the impact of human activities in the North- and Baltic
Sea ! (co_9-4)
03 April 2013: Did
the cold March 2013 came from Siberia ? A not well founded claim!
29 March 2013: Cold
March 2013 in company with March 1942 & 1917 (co 10-2)
27. March 2013: Strong
Start – Strong Ending; Winter 2012/13. About the Role of North-
and Baltic Sea (2007seatraining 1310)
26. March 2013; March
2013 snow in the UK and the North Sea . Did human activities
contributed? (ocl 10_2)
21 March 2013; Cold
March 2013 in UK and North Europe science should be able to explain!
07 March 2013: Winter
2012/13 for Northern Europe is over! The Baltic and North Sea will
prevent a surprise in March! (ocl-10_4)
19. January 2013: Northern
Europe's bulwark against Asian cold from 19-31. (oc_12-8)
14. January 2013: North-
and Baltic Sea influence Europe ’s winter 2012/2013 until now.
December 2012 (+ 21 & 26 Dec) : Are
we heading to severe Baltic Sea ice conditions by 30th December
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