On Thu, 8 Aug 2013 05:02:08 -0700 (PDT), Teignmouth
wrote:

Thanks Colin,

Looking at the Google street view, the location at Solent clearly does not receive free flowing air from all directions so, if the wind is blowing from behind the house with sunshine from the front of the house, the temperature will be artificially high & I don't know how the Met Office can accept it as an official site.

Yes, the screen is in a "front garden" location so the shelter
provided by the coastguard "house" when the Wind is from the north NE
or East (as yesterday) can affect screen temperatures. For the record,
I recorded a maximum yesterday in my back garden north wall setup of
23.3 deg C and Southampton Airport had a highest METAR report of 22
(they may use an aspirated screen). I should add that most of the
Solent temperature excess over mine is Stevenson Screen effect (my
screen is never in direct sunshine).

The solution is to move the screen and associated AWS equipment 300
metres north onto to the Daedelus airfield - it's been owned by the
Coastguard Agency for several years now (for the rescue helicopter
base) and unlike the Solent MRSC site, is not going to be closed or
sold off next year.

The new coastguard Maritime Operations Centre in nearby Fareham is on
an unsuitable site - too many tall trees! So to avoid a
Woodford-Rostherne type hiatus, the Met Office should be moving its
gear onto the airfield NOW!

--
Dave
West Fareham.