wrote in message
...
On Apr 5, 11:06 am, "Dave Cornwell"
wrote:
wrote in message

...
On Apr 4, 6:58 pm, "Dave Cornwell"

wrote:
At this time of year, in full sunshine and with stable conditions and a
light breeze, approximately what time of day would the expected maximum
temperature occur?
Dave

It depends quite strongly on the time of year. In Dec/Jan the
max is often not much after 1300Z because later in the afternoon the
sun is becoming very low. In high summer the maximum is quite a bit
later. In neutral conditions a typical time would be 1530Z but that
depends, at least here, on the wind direction, given similar amounts
of sunshine. With a NE'ly the max here is early (typically 1400Z even
in summer) due to cool air from the N Sea or Thames Estuary being
drawn in later in the afternoon but with a W to NW'ly the max can be
as late as 1730Z. All this assumes a fairly constant level of
sunshine.

Tudor Hughes, Warlingham, NE Surrey, 556 ft.
----------------
Thanks all. The reason I asked was that in the last few days i was getting
a
peak around 3pm - 3.30 pm then a slight drop. Then another peak about one
degree higher at around 4.30 -5.00 pm. I have concluded the former to be
real, the latter to be because the low sun hits the screen at 90 degs full
on at the later time at this time of year and there is a small gap of
about
3mm above the door which maybe makes a slight difference. I will plug it
and
see.
Cheers,
Dave

Unfortunately, Dave, the sun will raise the screen temperature
above the true air temperature whether there are gaps in it or not. I
notice this when the sun goes behind a tree in next door's garden.
You could rotate the screen so that the door faces north. Bit of a
palaver.

Tudor Hughes, Warlingham, Surrey.
I've filled the gap in now Tudor so all sides are the same. Sod's law the
sun went in from about 3.30 to 4.30pm today!
Dave

In article ,
Dave Cornwell writes:
snip
I've filled the gap in now Tudor so all sides are the same. Sod's law the
sun went in from about 3.30 to 4.30pm today!
Dave

I see that you're using Outlook Express, Dave. Any chance that you could
configure it to quote "properly", ie with chevrons in front of quoted
material? I'm pretty sure that it's possible, and it would make it far
easier to see who said what.
--
John Hall "Hard work often pays off after time, but laziness always
pays off now." Anon

wrote in message
...


Unfortunately, Dave, the sun will raise the screen temperature
above the true air temperature whether there are gaps in it or not. I
notice this when the sun goes behind a tree in next door's garden.
You could rotate the screen so that the door faces north. Bit of a
palaver.

...................


So what is the 'true air temperature', how can it be measured?
I thought that an official screen had to be placed in open ground
in direct sunlight.
--
Col

Bolton, Lancashire
160m asl

"John Hall" wrote in message
...
In article ,
Dave Cornwell writes:
snip
I've filled the gap in now Tudor so all sides are the same. Sod's law the
sun went in from about 3.30 to 4.30pm today!
Dave

I see that you're using Outlook Express, Dave. Any chance that you could
configure it to quote "properly", ie with chevrons in front of quoted
material? I'm pretty sure that it's possible, and it would make it far
easier to see who said what.


It's not an OE problem on it's own, it's when an OE user is replying
to someone posting via Google Groups that the chevrons do not appear.
You don't use GG and I use OE and the chevrons appeared in this
message as they should. They did not appear in a reply i made to Tudor,
who posts via GG. In that case I manually added some '.........' to
seperate the replies.
--
Col

Bolton, Lancashire
160m asl

On Mon, 6 Apr 2009 06:32:30 +0100, Col wrote in


I see that you're using Outlook Express, Dave. Any chance that you could
configure it to quote "properly", ie with chevrons in front of quoted
material? I'm pretty sure that it's possible, and it would make it far
easier to see who said what.

It's not an OE problem on it's own, it's when an OE user is replying
to someone posting via Google Groups that the chevrons do not appear.
You don't use GG and I use OE and the chevrons appeared in this
message as they should. They did not appear in a reply i made to Tudor,
who posts via GG. In that case I manually added some '.........' to
seperate the replies.

There is a small addon for Outlook Express called Outlook-QuoteFix v0.91
that will solve the problem. I mentioned it in this ng a year or so back
and it does work.

http://home.in.tum.de/~jain/software/outlook-quotefix/

--
Mike Tullett - Coleraine 55.13°N 6.69°W posted 06/04/2009 07:07:16 GMT

On 6 Apr, 06:26, "Col" wrote:
wrote in message

...

* * * *Unfortunately, Dave, the sun will raise the screen temperature
above the true air temperature whether there are gaps in it or not. *I
notice this when the sun goes behind a tree in next door's garden.
You could rotate the screen so that the door faces north. *Bit of a
palaver.

..................

So what is the 'true air temperature', how can it be measured?
I thought that an official screen had to be placed in open ground
in direct sunlight.
--
Col

Bolton, Lancashire
160m asl

Yes, I thought the same. The air in the shade of a tree tends to be
particularly cool, when compared to say, the air in the shade of a
building.

We tend to get 2 temperature maximums here in settled conditions, due
to the fact we often get 2 sea breezes in opposite directions on the
same day. The 'normal' onshore SE sea breeze sets in late morning. The
northwest facing 'north' coast takes longer to warm due to it's
aspect, the sea breeze here typically sets in early afternoon. It then
gradually becomes the dominant sea breeze. The convergence zone, near
the north coast at noon, moves slowly south, until it reaches Mount's
Bay around 16:00 (BST). The is movement commonly shown by a line of
cloud. It's this, often sudden, onset of the north coast breeze which
is repoonsible for many of the north coast summer thunderstorms.
www.turnstone-cottage.co.uk/SrMerrynStorm.PDF

As a result, in Penzance,we often get a max about 11;30-12:00, then a
dip, then a max around 15:30-16:00 in the quiet period before the NW
breeze sets in.

Graham
Penzance

On Mon, 6 Apr 2009 06:32:30 +0100, Col wrote in


I see that you're using Outlook Express, Dave. Any chance that you
could
configure it to quote "properly", ie with chevrons in front of
quoted
material? I'm pretty sure that it's possible, and it would make it
far
easier to see who said what.

"Mike Tullett" wrote in message
...
It's not an OE problem on it's own, it's when an OE user is
replying
to someone posting via Google Groups that the chevrons do not
appear.
You don't use GG and I use OE and the chevrons appeared in this
message as they should. They did not appear in a reply i made to
Tudor,
who posts via GG. In that case I manually added some '.........' to
seperate the replies.


.... using Windows Mail (successor to OE), the same problem arises: I
just snip liberally and add the chevrons manually.

Martin.


--
Martin Rowley
West Moors, East Dorset (UK): 17m (56ft) amsl
Lat: 50.82N Long: 01.88W
NGR: SU 082 023

On Mon, 6 Apr 2009 08:07:16 +0100, Mike Tullett wrote in


It's not an OE problem on it's own, it's when an OE user is replying
to someone posting via Google Groups that the chevrons do not appear.
You don't use GG and I use OE and the chevrons appeared in this
message as they should. They did not appear in a reply i made to Tudor,
who posts via GG. In that case I manually added some '.........' to
seperate the replies.

There is a small addon for Outlook Express called Outlook-QuoteFix v0.91
that will solve the problem. I mentioned it in this ng a year or so back
and it does work.

http://home.in.tum.de/~jain/software/outlook-quotefix/

It seems that link is only for Outlook. To get Quotefix for Outlook
Express here is the source.

http://home.in.tum.de/~jain/software/oe-quotefix/

--
Mike Tullett - Coleraine 55.13°N 6.69°W posted 06/04/2009 10:47:12 GMT

On Apr 6, 6:26*am, "Col" wrote:
wrote in message

...

* * * *Unfortunately, Dave, the sun will raise the screen temperature
above the true air temperature whether there are gaps in it or not. *I
notice this when the sun goes behind a tree in next door's garden.
You could rotate the screen so that the door faces north. *Bit of a
palaver.

..................

So what is the 'true air temperature', how can it be measured?
I thought that an official screen had to be placed in open ground
in direct sunlight.
--
Col

Bolton, Lancashire
160m asl

It does, but it still reads high when the sun is out, the
amount depending on the wind speed. Forced ventilation of all screens
with an internal fan would be an answer, or a moveable parasol say
twenty feet in the air that shaded only the screen. Then you'd have
the huge problem of incompatibility with previous records. Screen
temperatures in sunlight are always high, sometimes by nearly 4 deg -
it's a fault of the system.

Tudor Hughes, Warlingham, Surrey.

Mike Tullett wrote:

On Mon, 6 Apr 2009 08:07:16 +0100, Mike Tullett wrote in


It's not an OE problem on it's own, it's when an OE user is replying
to someone posting via Google Groups that the chevrons do not appear.
You don't use GG and I use OE and the chevrons appeared in this
message as they should. They did not appear in a reply i made to
Tudor,
who posts via GG. In that case I manually added some '.........' to
seperate the replies.

There is a small addon for Outlook Express called Outlook-QuoteFix
v0.91
that will solve the problem. I mentioned it in this ng a year or so
back
and it does work.

http://home.in.tum.de/~jain/software/outlook-quotefix/

It seems that link is only for Outlook. To get Quotefix for Outlook
Express here is the source.

http://home.in.tum.de/~jain/software/oe-quotefix/


The simple cure would seem to be for people to stop using Google Groups
for posting to newsgroups. Can't see it happening, unfortunately.

--
Graham P Davis, Bracknell, Berks., UK. E-mail: newsman not newsboy