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uk.sci.weather (UK Weather) (uk.sci.weather) For the discussion of daily weather events, chiefly affecting the UK and adjacent parts of Europe, both past and predicted. The discussion is open to all, but contributions on a practical scientific level are encouraged. |
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#1
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Hi all,
I'm really sorry to keep bothering the newsgroup with this, but I'm writing my dissertation on a series of storms that produced a lot of electrical activity and hail in southern England on May 13th 2003 in unstable NW airstream. I would be very grateful to anyone who has any data (any whatsoever) from the area on this date. Also, a satellite image exists that I desperately need. It is from 13th May 2003 and taken at 1704BST. It was taken by NOAA-12 AVHRR and I know it exists as it is referenced in an article concerning the events I am trying to analyse in Weather Vol. 58. Does anybody know how I go about finding this image? I have tried Dundee and also Bernard Burton but this has not proved successful. Hopeful regards, Jeremy Handscomb 3rd year Met. Student Reading Uni, Berkshire |
#2
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Also, a satellite image exists that I desperately need. It is from 13th May
2003 and taken at 1704BST. It was taken by NOAA-12 AVHRR and I know it exists as it is referenced in an article concerning the events I am trying to analyse in Weather Vol. 58 Jeremy, But does it exist? Not according to the Dundee list of AVHRR passes for the day; I suppose that is the problem you are reporting. Now, I would hate to suggest that anything you read in Weather is not of the highest level of accuracy ![]() Unfortunately, my copies of Weather are at work; perhaps you could let us know the reference to the paper and I will check the ref. Julian Mayes (editor: Weather) West Molesey, Surrey. |
#3
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![]() "JJCMayes1" wrote in message ... Also, a satellite image exists that I desperately need. It is from 13th May 2003 and taken at 1704BST. It was taken by NOAA-12 AVHRR and I know it exists as it is referenced in an article concerning the events I am trying to analyse in Weather Vol. 58 Jeremy, But does it exist? Not according to the Dundee list of AVHRR passes for the day; I suppose that is the problem you are reporting. Now, I would hate to suggest that anything you read in Weather is not of the highest level of accuracy ![]() reference. Unfortunately, my copies of Weather are at work; perhaps you could let us know the reference to the paper and I will check the ref. .... as I went to the copy I'll oblige: It is mentioned in the article "Hailfalls at Woodlands St.Mary, West Berkshire 13 May 2003" auth: WS Pike Vol 58, December. He makes reference to NOAA-12 AVHRR pass at 1704BST (1604GMT) in the text which he says shows 'cloud strees' ... I too had a look at the Dundee site and can't find this pass: all seem to be NOAA-16 or 17, so I assume Bill is using APT to acquire NOAA-12 locally??? Martin. |
#4
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Thanks for all your help, Martin. What does APT mean and were you being
serious?! Jeremy "Martin Rowley" wrote in message ... "JJCMayes1" wrote in message ... Also, a satellite image exists that I desperately need. It is from 13th May 2003 and taken at 1704BST. It was taken by NOAA-12 AVHRR and I know it exists as it is referenced in an article concerning the events I am trying to analyse in Weather Vol. 58 Jeremy, But does it exist? Not according to the Dundee list of AVHRR passes for the day; I suppose that is the problem you are reporting. Now, I would hate to suggest that anything you read in Weather is not of the highest level of accuracy ![]() reference. Unfortunately, my copies of Weather are at work; perhaps you could let us know the reference to the paper and I will check the ref. ... as I went to the copy I'll oblige: It is mentioned in the article "Hailfalls at Woodlands St.Mary, West Berkshire 13 May 2003" auth: WS Pike Vol 58, December. He makes reference to NOAA-12 AVHRR pass at 1704BST (1604GMT) in the text which he says shows 'cloud strees' ... I too had a look at the Dundee site and can't find this pass: all seem to be NOAA-16 or 17, so I assume Bill is using APT to acquire NOAA-12 locally??? Martin. |
#5
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![]() "Jeremy Handscomb" wrote in message ... Thanks for all your help, Martin. What does APT mean and were you being serious?! APT = automatic picture transmission; this is the system whereby you can pull-down imagery as the satellite passes overhead your location; I'm out of date on all this now (Bernard B. may be able to help), but as a sproggy Assistant on a lonely island off Oman in the early '70's, we used to have to go to a little hut at certain times and *manually* point the aerial array at the NOAA satellites (and we tried for the Russian Meteor's too), as they passed overhead. You had to work out the horizon-azimuth, times etc from the NOAA-predicts., then point the array and wait for the signal. The aerial was tracked as the spacecraft passed overhead, and the image was downloaded line by line (the spacecraft had a scanning mirror which acquired the earth-view at the sub-satellite point), and read onto a facsimile recorder ... then you had to choose the appropriate lat/long grid to trace on to the image etc. All a bit of a black art, and I'm sure it's a lot more sophisticated now! Have you tried to contact Bill Pike? He may have the image you require. Martin. |
#6
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Ahhh...
Thanks. I was going to leav direct contact with the author until my other avenues of investigation were closed as I only have a postal address for him and in this day and age impatience would get the better of me! Jeremy "Martin Rowley" wrote in message ... "Jeremy Handscomb" wrote in message ... Thanks for all your help, Martin. What does APT mean and were you being serious?! APT = automatic picture transmission; this is the system whereby you can pull-down imagery as the satellite passes overhead your location; I'm out of date on all this now (Bernard B. may be able to help), but as a sproggy Assistant on a lonely island off Oman in the early '70's, we used to have to go to a little hut at certain times and *manually* point the aerial array at the NOAA satellites (and we tried for the Russian Meteor's too), as they passed overhead. You had to work out the horizon-azimuth, times etc from the NOAA-predicts., then point the array and wait for the signal. The aerial was tracked as the spacecraft passed overhead, and the image was downloaded line by line (the spacecraft had a scanning mirror which acquired the earth-view at the sub-satellite point), and read onto a facsimile recorder ... then you had to choose the appropriate lat/long grid to trace on to the image etc. All a bit of a black art, and I'm sure it's a lot more sophisticated now! Have you tried to contact Bill Pike? He may have the image you require. Martin. |
#7
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On Wed, 4 Feb 2004 07:44:25 -0000, Martin Rowley wrote in
snip APT = automatic picture transmission; this is the system whereby you can pull-down imagery as the satellite passes overhead your location; I'm out of date on all this now (Bernard B. may be able to help), but as a sproggy Assistant on a lonely island off Oman in the early '70's, we used to have to go to a little hut at certain times and *manually* point the aerial array at the NOAA satellites (and we tried for the Russian Meteor's too), as they passed overhead. You had to work out the horizon-azimuth, times etc from the NOAA-predicts., then point the array and wait for the signal. The aerial was tracked as the spacecraft passed overhead, and the image was downloaded line by line (the spacecraft had a scanning mirror which acquired the earth-view at the sub-satellite point), and read onto a facsimile recorder ... then you had to choose the appropriate lat/long grid to trace on to the image etc. All a bit of a black art, and I'm sure it's a lot more sophisticated now! I'm sure it is, although the basics would be the same. This brings to mind the setup I used for many years. I had a large dish on the roof above me for the Meteosat images and an omni-directional antenna for the polar orbiting satellites, such as NOAA and the Russian ones. I used to be able to pick them up first when they were at a latitude around central Greenland and tracked them down to N. Africa. With the type of antenna I used no tracking was needed. I had software which would tell me when I should first hear the signals and, by and large, it was very accurate. The Russian signals had a very distinctive sound to them, which I can still "hear" even now. The images appeared on the computer monitor and later printed off. I think Offenbach (DWD) used to retransmit NOAA images over their FAX system and those used to be of very high quality when used with the correct FAX paper (made for such images with all the shades of grey). I think I stopped around 1994 when online and real time images started to become available. -- Mike 55.13°N 6.69°W Coleraine posted to uk.sci.weather 04/02/2004 09:32:35 UTC Temp +8.3C and rising. |
#8
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A quick google search suggests that NOAA 12 AVHRR images for 2003 are
archived here (though doesn't seem to be any online access): http://www.dfd.dlr.de/stations/fifo/roll.html David -- ---------------------------------------------------- This mailbox protected from junk email by Matador from MailFrontier, Inc. http://info.mailfrontier.com "Jeremy Handscomb" wrote in message ... Hi all, I'm really sorry to keep bothering the newsgroup with this, but I'm writing my dissertation on a series of storms that produced a lot of electrical activity and hail in southern England on May 13th 2003 in unstable NW airstream. I would be very grateful to anyone who has any data (any whatsoever) from the area on this date. Also, a satellite image exists that I desperately need. It is from 13th May 2003 and taken at 1704BST. It was taken by NOAA-12 AVHRR and I know it exists as it is referenced in an article concerning the events I am trying to analyse in Weather Vol. 58. Does anybody know how I go about finding this image? I have tried Dundee and also Bernard Burton but this has not proved successful. Hopeful regards, Jeremy Handscomb 3rd year Met. Student Reading Uni, Berkshire |
#9
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On Tue, 3 Feb 2004 15:32:06 -0000, Jeremy Handscomb wrote in
snip Also, a satellite image exists that I desperately need. It is from 13th May 2003 and taken at 1704BST. It was taken by NOAA-12 AVHRR and I know it exists as it is referenced in an article concerning the events I am trying to analyse in Weather Vol. 58. Does anybody know how I go about finding this image? I have tried Dundee and also Bernard Burton but this has not proved successful. A search using Google led me to these images. I think they are the ones you may need, though the quality isn't too good. http://www-grtr.u-strasbg.fr/quickNo...3/62320412.jpg That is channel 4 and for channel 2 http://www-grtr.u-strasbg.fr/quickNo...3/62320212.jpg There appears to be some severe convection in the south and east. -- Mike 55.13°N 6.69°W Coleraine posted to uk.sci.weather 04/02/2004 23:15:17 UTC |
#10
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On Wed, 4 Feb 2004 23:15:17 +0000, Mike Tullett wrote in
snip A search using Google led me to these images. I think they are the ones you may need, though the quality isn't too good. http://www-grtr.u-strasbg.fr/quickNo...3/62320412.jpg That is channel 4 and for channel 2 http://www-grtr.u-strasbg.fr/quickNo...3/62320212.jpg There appears to be some severe convection in the south and east. And some more, covering a larger area http://www-grtr.u-strasbg.fr/quickNo...3/62320212.jpg http://www-grtr.u-strasbg.fr/quickNo...3/62320312.jpg http://www-grtr.u-strasbg.fr/quickNo...3/62320412.jpg Those are channels 2-4 -- Mike 55.13°N 6.69°W Coleraine posted to uk.sci.weather 04/02/2004 23:21:38 UTC |
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