In June's "Weather" (which I have just got round to reading) there is a
picture of euphoric rays on page 143 and discussion of crepuscular rays
on page 175. What's the difference?

I've never heard of "euphoric rays" before. I've heard of and seen
crepuscular, but when I think about it, I'm not sure how they're
produced. What's illuminated - dust and other atmospheric particles?

Trevor
http://www.personal.dundee.ac.uk/~taharley/

Trevor Harley wrote:
In June's "Weather" (which I have just got round to reading) there is a
picture of euphoric rays on page 143 and discussion of crepuscular rays
on page 175. What's the difference?

I've never heard of "euphoric rays" before. I've heard of and seen
crepuscular, but when I think about it, I'm not sure how they're
produced. What's illuminated - dust and other atmospheric particles?

Trevor
http://www.personal.dundee.ac.uk/~taharley/

I've never seen the term before but on looking at the picture I
would imagine euphoric rays are those that pass above the observer,
unlike crepuscular rays which are seen below the sun. In either case
it is atmospheric dust that is in the shadow of the cloud and it is
this unilluminated region that we see.
Another explanation is that the euphoric rays consists of
finely powdered crack cocaine.

Tudor Hughes, Warlingham, Surrey.

'Euphoric rays' is not a meteorological term, Trevor, and it is difficult to
see why they are termed so as a title for the photo in the June edition of
Weather, unless the picture is meant to induce a feeling of euphoria in the
observer. However, crepuscular rays are formed by particulate matter in
suspension in the atmosphere, which may be composed of dust, salt particles,
pollution products, water or ice meteors. The rays become visible when the
illuminated particles are crossed by shadows cast by clouds, or more rarely,
mountains.

--
Bernard Burton
Wokingham, Berkshire, UK.

Satellite images at:
www.btinternet.com/~wokingham.weather/wwp.html
"Trevor Harley" wrote in message
news:2005072510565816807%taharley@dundeeacuk...
In June's "Weather" (which I have just got round to reading) there is a
picture of euphoric rays on page 143 and discussion of crepuscular rays
on page 175. What's the difference?

I've never heard of "euphoric rays" before. I've heard of and seen
crepuscular, but when I think about it, I'm not sure how they're
produced. What's illuminated - dust and other atmospheric particles?

Trevor
http://www.personal.dundee.ac.uk/~taharley/

On Mon, 25 Jul 2005 14:33:20 +0100, Bernard Burton wrote in


'Euphoric rays' is not a meteorological term, Trevor, and it is difficult to
see why they are termed so as a title for the photo in the June edition of
Weather, unless the picture is meant to induce a feeling of euphoria in the
observer. However, crepuscular rays are formed by particulate matter in
suspension in the atmosphere, which may be composed of dust, salt particles,
pollution products, water or ice meteors. The rays become visible when the
illuminated particles are crossed by shadows cast by clouds, or more rarely,
mountains.

I took some photos of crepuscular rays almost two years ago. There was a
lot of Saharan dust in the air then and it was those particles which caused
the affect

http://www.mtullett.plus.com/rays/

--
Mike 55.13°N 6.69°W Coleraine posted to uk.sci.weather 25/07/2005 13:40:10 UTC

I took some photos of crepuscular rays almost two years ago. There was a
lot of Saharan dust in the air then and it was those particles which caused
the affect

http://www.mtullett.plus.com/rays/


Is still think they're Sccas (:

Nice pics.

Les
--
Les Crossan,
Wallsend, Tyne & Wear
54.95N 1.5W
Home of the Wallsend StormCam and the Backup USW FAQ -
www.uksevereweather.org.uk

Mike Tullett wrote:
On Mon, 25 Jul 2005 14:33:20 +0100, Bernard Burton wrote in



'Euphoric rays' is not a meteorological term, Trevor, and it is difficult to
see why they are termed so as a title for the photo in the June edition of
Weather, unless the picture is meant to induce a feeling of euphoria in the
observer. However, crepuscular rays are formed by particulate matter in
suspension in the atmosphere, which may be composed of dust, salt particles,
pollution products, water or ice meteors. The rays become visible when the
illuminated particles are crossed by shadows cast by clouds, or more rarely,
mountains.


I took some photos of crepuscular rays almost two years ago. There was a
lot of Saharan dust in the air then and it was those particles which caused
the affect

http://www.mtullett.plus.com/rays/

I still think they're sccas (:

Cracking pix.

There's another pic of crepuscular rays on my website. If you right
click and save it's a bit bigger than displayed.


Les
--
Les Crossan,
Wallsend, Tyne & Wear
54.95N 1.5W
Home of the Wallsend StormCam and the Backup USW FAQ -
www.uksevereweather.org.uk

On Mon, 25 Jul 2005 15:06:30 GMT, Les Crossan wrote in
.uk

I took some photos of crepuscular rays almost two years ago. There was a
lot of Saharan dust in the air then and it was those particles which caused
the affect

And spot the typo in line above:-)

http://www.mtullett.plus.com/rays/

I still think they're sccas (:

LOL yes, you are probably correct. I'm just too lazy to change that page.

Cracking pix.

There's another pic of crepuscular rays on my website. If you right
click and save it's a bit bigger than displayed.

The saved version is 640x480 pixels and shows the effect well.


--
Mike 55.13°N 6.69°W Coleraine posted to uk.sci.weather 25/07/2005 15:23:22 UTC

Mike Tullett wrote:
On Mon, 25 Jul 2005 15:06:30 GMT, Les Crossan wrote in
.uk


I took some photos of crepuscular rays almost two years ago. There was a
lot of Saharan dust in the air then and it was those particles which caused
the affect


And spot the typo in line above:-)


http://www.mtullett.plus.com/rays/


I still think they're sccas (:


LOL yes, you are probably correct. I'm just too lazy to change that page.


Cracking pix.

There's another pic of crepuscular rays on my website. If you right
click and save it's a bit bigger than displayed.


The saved version is 640x480 pixels and shows the effect well.

LOL Mike.


This one for those who are bamboozled by this thread. The colour
fringing is real enough. (:

http://llandru.servehttp.com/Images/...cular_rays.jpg.

Les



--
Les Crossan,
Wallsend, Tyne & Wear
54.95N 1.5W
Home of the Wallsend StormCam and the Backup USW FAQ -
www.uksevereweather.org.uk

All these photographs are very good.

However I personally would have cropped the UFO out of the top R-corner
of this one:

This one for those who are bamboozled by this thread. The colour
fringing is real enough. (:

http://llandru.servehttp.com/Images/...cular_rays.jpg.

Les


Easy cropping is one of the great advantages of digital photography -
it is so easy to decrop afterwards should you change your mind.

Trevor