Low stratus thins at times to see the solar disc but there is a lot of
reflected glare. Quite hopeless really. Still I have set 1 minute data
logging on my AWS to see if anything happens on that front. Will not be able
to detect small change in light level as cloud thickness is varying. Will
this cloud get thicker due to cloud top cooling I wonder? Convective cloud
disappears in eclipses as the heat is switched off but not layer cloud,
perhaps the reverse? Thick cloud now :-(

Will
--
http://www.lyneside.demon.co.uk/Hayt...antage_Pro.htm
Will Hand (Haytor, Devon, 1017 feet asl)
---------------------------------------------

"Eskimo Will" wrote in message
...
Low stratus thins at times to see the solar disc but there is a lot of
reflected glare. Quite hopeless really. Still I have set 1 minute data
logging on my AWS to see if anything happens on that front. Will not be
able to detect small change in light level as cloud thickness is varying.
Will this cloud get thicker due to cloud top cooling I wonder? Convective
cloud disappears in eclipses as the heat is switched off but not layer
cloud, perhaps the reverse? Thick cloud now :-(


Wow I take it all back. Awesome eclipse!

Went outside and cloud thinned enough to see the sun with naked eye and I
could see the moon biting into it. Then cloud cleared a bit more and it was
too bright to look at directly so viewed the near totality reflected from
the window. Occasionally looking directly when thicker cloud came across.

Temperature drop of 0.8C measured. From +4.7C at 0848 to +3.8C at 0930.

Will
--
http://www.lyneside.demon.co.uk/Hayt...antage_Pro.htm
Will Hand (Haytor, Devon, 1017 feet asl)
---------------------------------------------

"Eskimo Will" wrote in message
...

"Eskimo Will" wrote in message
...
Low stratus thins at times to see the solar disc but there is a lot of
reflected glare. Quite hopeless really. Still I have set 1 minute data
logging on my AWS to see if anything happens on that front. Will not be
able to detect small change in light level as cloud thickness is varying.
Will this cloud get thicker due to cloud top cooling I wonder? Convective
cloud disappears in eclipses as the heat is switched off but not layer
cloud, perhaps the reverse? Thick cloud now :-(


Wow I take it all back. Awesome eclipse!

Went outside and cloud thinned enough to see the sun with naked eye and I
could see the moon biting into it. Then cloud cleared a bit more and it
was too bright to look at directly so viewed the near totality reflected
from the window. Occasionally looking directly when thicker cloud came
across.

Temperature drop of 0.8C measured. From +4.7C at 0848 to +3.8C at 0930.


0940
Eclipse easing. Temperature has now steadied at +3.7C . A 1 degree drop.
Impressive given the thin stratus.

Will
--
http://www.lyneside.demon.co.uk/Hayt...antage_Pro.htm
Will Hand (Haytor, Devon, 1017 feet asl)
---------------------------------------------

On 20/03/2015 09:38, Eskimo Will wrote:

"Eskimo Will" wrote in message
...
Low stratus thins at times to see the solar disc but there is a lot of
reflected glare. Quite hopeless really. Still I have set 1 minute data
logging on my AWS to see if anything happens on that front. Will not
be able to detect small change in light level as cloud thickness is
varying. Will this cloud get thicker due to cloud top cooling I
wonder? Convective cloud disappears in eclipses as the heat is
switched off but not layer cloud, perhaps the reverse? Thick cloud now
:-(


Wow I take it all back. Awesome eclipse!

Annoying amount of cloud about though here in North Yorks and it spit
rain on my telescope at one point. Not enough to retreat indoors.

Went outside and cloud thinned enough to see the sun with naked eye and
I could see the moon biting into it. Then cloud cleared a bit more and
it was too bright to look at directly so viewed the near totality
reflected from the window. Occasionally looking directly when thicker
cloud came across.

Temperature drop of 0.8C measured. From +4.7C at 0848 to +3.8C at 0930.

Curious I saw a smaller drop from a warmer temperature down in the
valley. Thickening cloud interfered with light measurements but the
ratio between first contact and maximum eclipse was about 1/16.

Temperature was 8.8C at 0930 falling to 8.4C minimum at 0955 then
rapidly rising as the sun came out of eclipse and started to burn the
clouds off again 9.5C at 10.15, 9.9 @ 10.21, 10.4 @ 10.30 & 11.9 @1100.
Sun just breaking through the clouds again.

No wind at all here. Birds now somewhat confused with two dawn choruses.
It didn't get all that dark more like an eerie twilight.

I got a couple of half decent shots with a zoom lens of the sun just
before maximum at about 90% obscured. Like a smile in the sky. Clouded
out by 8/8 low stratus after that and only just clearing now.

--
Regards,
Martin Brown

This mornings partial eclipse from mid-Devon looked like a no-show, but the stratus was more of a blessing than a curse, because it worked like natures own built-in filter, and enabled me to get a few shots with my 200 mm lens. The visible satellite also picked up the event as the moon's shadow raced northeastward across the northwest of the image and across the Faroes. It may have been a little less than 90% of totality but there was noticeable 'twilight' feel about it as the stratus dispersed and left behind a few patches of altocumulus. A few pictures and satellite animation on my blog:

https://xmetman.wordpress.com/2015/0...-eclipse-2015/

Will

I thought you said the other week that none of the general public would even notice it happening?

There were quite a few people out on our street looking and taking photo's, and masses of news about it on rolling news, this event seems to have got far more coverage than the 199 event did.

The temperature did drop 0.5°C between 0906 and 0933 even though the cloud was breaking and the sun was coming out, at the same time the N'NE fell light for about 10 minutes which could have been a coincidence.

Bruce.

On 20/03/2015 11:16, wrote:
Will

I thought you said the other week that none of the general public would even notice it happening?

There were quite a few people out on our street looking and taking photo's, and masses of news about it on rolling news,
this event seems to have got far more coverage than the 199 event did.

I think that is just due to the Brian Cox effect and Astronomy Live (BBC
can be very formulaic at times expect seasonwatch live for all values
of season and before long very probably drying paint watch live).

ISTR BBC did do more or less the same live coverage from Cornwall and an
aircraft for 1999 although I was in France at the time.

The temperature did drop 0.5°C between 0906 and 0933 even though the cloud was breaking
and the sun was coming out, at the same time the N'NE fell light for
about 10 minutes
which could have been a coincidence.

Incident light mid eclipse was down by a factor of 16 here which is
approximately in line with the geometry. The sun is now shining.

Birds were well and truly confused by two dawns in one day.

--
Regards,
Martin Brown

On Friday, March 20, 2015 at 9:02:15 AM UTC, wrote:
Low stratus thins at times to see the solar disc but there is a lot of
reflected glare. Quite hopeless really. Still I have set 1 minute data
logging on my AWS to see if anything happens on that front. Will not be able
to detect small change in light level as cloud thickness is varying. Will
this cloud get thicker due to cloud top cooling I wonder? Convective cloud
disappears in eclipses as the heat is switched off but not layer cloud,
perhaps the reverse? Thick cloud now :-(

Will
--
http://www.lyneside.demon.co.uk/Hayt...antage_Pro.htm
Will Hand (Haytor, Devon, 1017 feet asl)
---------------------------------------------

i note stations in scotland that report hourly are lower temp at 10 than at 9

Annoying having to be with the doctor at exactly the wrong time. However, there was a thin layer of cloud as I went in just before 0940 so the sun was clearly visible. There was a clearer slot approaching just in time for the main event, but I missed that and light levels were not much reduced, but it was a lot darker at home with thicker cloud as I drove into Driffield.
Definite temp drop of just over 1c, from approaching 10, to 8.5. Quite surprised it was that warm actually.

wrote in message
...
Will

I thought you said the other week that none of the general public would even
notice it happening?

There were quite a few people out on our street looking and taking photo's,
and masses of news about it on rolling news, this event seems to have got
far more coverage than the 199 event did.

The temperature did drop 0.5°C between 0906 and 0933 even though the cloud
was breaking and the sun was coming out, at the same time the N'NE fell
light for about 10 minutes which could have been a coincidence.

Bruce.
==============

Yes if you deliberately go outside to view it then you will see something.
What I meant was that if you were working outside or going about your normal
day to day then you probably wouldn't notice it. I wouldn't if I had stayed
indoors working on my weekly forecast. Whereas a total eclipse would be
noticeable even if you weren't expecting it because of the darkness.

Will
--




--
Will
--
http://www.lyneside.demon.co.uk/Hayt...antage_Pro.htm
Will Hand (Haytor, Devon, 1017 feet asl)
---------------------------------------------