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Any 'haze dome' experts out there? Last weekend we had two blue days and
having read Bob Wander's "The Art of Thermaling .. Made Easy" in which he states that haze domes can be seen from the ground, I spent a lot of my time both on the ground and in flight looking for them. No doubt conditions have to be just right for them to be seen, but I have yet to see one, or recognize one. Can anyone describe what a haze dome looks like. From the air ... from the ground? Are they more visable in dry or humid conditions? Are they a rare phenomenon or relatively frequent? Would they only be visable if there was a low inversion level? -- Roger Kelly to reply replace the IP address above with ceressenior.com |
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At 20:00 23 June 2005, T O D D P A T T I S T wrote:
Roger Kelly wrote: Any 'haze dome' experts out there? I'm not an 'expert' but I've seen them (East coast and only a few times). I can't imagine seeing them from the ground. From the air they become progressively more visible as you approach the inversion, and the farther away, the easier they are to detect. They bulge up into the defined inversion. Sighting along the plane of that inversion is the easiest way to see them. T o d d P a t t i s t - 'WH' Ventus C (Remove DONTSPAMME from address to email reply.) |
#3
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Haze domes are very commonly visible in the hazy UK
on high pressure days. They can be seen from the ground if the inversion is low early in the day. In the air they are easily seen from within a couple of thousand feet of the inversion. You need some haze and a thermal to form a dome and to be looking in the right direction more or less into sun for them to be clearly visible. On an XC course about 12 ago Andy Davis told us that when he was flying on a difficult blue day in the wrong direction for the haze domes to be visible he spent a lot of time looking back over his shoulder for the thermals behind him to line them up or, if necessary, to turn back to one. John Galloway At 17:42 23 June 2005, Roger Kelly wrote: Any 'haze dome' experts out there? Last weekend we had two blue days and having read Bob Wander's 'The Art of Thermaling .. Made Easy' in which he states that haze domes can be seen from the ground, I spent a lot of my time both on the ground and in flight looking for them. No doubt conditions have to be just right for them to be seen, but I have yet to see one, or recognize one. Can anyone describe what a haze dome looks like. From the air ... from the ground? Are they more visable in dry or humid conditions? Are they a rare phenomenon or relatively frequent? Would they only be visable if there was a low inversion level? -- Roger Kelly to reply replace the IP address above with ceressenior.com |
#4
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Haze domes: I learned to fly at Elsinore, Calif. and seeing haze domes
is so common here I thought it must be a common occurrance everywhere! They are readily visible, when ocurring, from the ground or in the air. I think first of course you require haze which we have a lot of here in Southern California and locally refer to as smog. Polarized sunglasses are a great help. With them rotating your head around the line of sight can help to increase the definition between the haze and the clear air above, the unpolarized and polarized light. We generally use this as an indication that lift is generating over the mountains. One can often observe condensation at the top of the 'domes' even when the moisture level is so low as to ensure the day will be 'blue'. I am sure someone more meteorologically educated than I can tell us how this occurs. |
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Go wrote:
One can often observe condensation at the top of the 'domes' even when the moisture level is so low as to ensure the day will be 'blue'. I am sure someone more meteorologically educated than I can tell us how this occurs. Peeing pilots? Stefan |
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They are common here in Georgia, USA (Southeastern USA) in the summer. We
too have haze on high pressure summer days, with dewpoints in the 55-65 F days. Haze "domes" are best seen when near the inversion level but when you need a thermal, you are not there! They can be seen at all heights, but are best described as "haze clumps (or clusters)" and only when "backlighted" by the sun. They can be seen without sunglasses, and moderate blue blocking helps. Polarization is OK if your canopy is perfect. Otherwise, the tress areas in the plastic can be confusing. It is not unusual to see a haze clump become a small Cu if there is enough moisture. -- Hartley Falbaum "John Galloway" wrote in message ... Haze domes are very commonly visible in the hazy UK on high pressure days. They can be seen from the ground if the inversion is low early in the day. In the air they are easily seen from within a couple of thousand feet of the inversion. You need some haze and a thermal to form a dome and to be looking in the right direction more or less into sun for them to be clearly visible. On an XC course about 12 ago Andy Davis told us that when he was flying on a difficult blue day in the wrong direction for the haze domes to be visible he spent a lot of time looking back over his shoulder for the thermals behind him to line them up or, if necessary, to turn back to one. John Galloway At 17:42 23 June 2005, Roger Kelly wrote: Any 'haze dome' experts out there? Last weekend we had two blue days and having read Bob Wander's 'The Art of Thermaling .. Made Easy' in which he states that haze domes can be seen from the ground, I spent a lot of my time both on the ground and in flight looking for them. No doubt conditions have to be just right for them to be seen, but I have yet to see one, or recognize one. Can anyone describe what a haze dome looks like. From the air ... from the ground? Are they more visable in dry or humid conditions? Are they a rare phenomenon or relatively frequent? Would they only be visable if there was a low inversion level? -- Roger Kelly to reply replace the IP address above with ceressenior.com |
#7
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![]() To echo what John said, they are very common in the UK. I think the biggest aid to help you see them will be the type of sunglasses you have. I use Oakley Eye Jackets with brown lenses and they are excellent for Haze Caps and cloud definition. Owain At 12:42 24 June 2005, Hl Falbaum wrote: They are common here in Georgia, USA (Southeastern USA) in the summer. We too have haze on high pressure summer days, with dewpoints in the 55-65 F days. Haze 'domes' are best seen when near the inversion level but when you need a thermal, you are not there! They can be seen at all heights, but are best described as 'haze clumps (or clusters)' and only when 'backlighted' by the sun. They can be seen without sunglasses, and moderate blue blocking helps. Polarization is OK if your canopy is perfect. Otherwise, the tress areas in the plastic can be confusing. It is not unusual to see a haze clump become a small Cu if there is enough moisture. -- Hartley Falbaum 'John Galloway' wrote in message ... Haze domes are very commonly visible in the hazy UK on high pressure days. They can be seen from the ground if the inversion is low early in the day. In the air they are easily seen from within a couple of thousand feet of the inversion. You need some haze and a thermal to form a dome and to be looking in the right direction more or less into sun for them to be clearly visible. On an XC course about 12 ago Andy Davis told us that when he was flying on a difficult blue day in the wrong direction for the haze domes to be visible he spent a lot of time looking back over his shoulder for the thermals behind him to line them up or, if necessary, to turn back to one. John Galloway At 17:42 23 June 2005, Roger Kelly wrote: Any 'haze dome' experts out there? Last weekend we had two blue days and having read Bob Wander's 'The Art of Thermaling .. Made Easy' in which he states that haze domes can be seen from the ground, I spent a lot of my time both on the ground and in flight looking for them. No doubt conditions have to be just right for them to be seen, but I have yet to see one, or recognize one. Can anyone describe what a haze dome looks like. From the air ... from the ground? Are they more visable in dry or humid conditions? Are they a rare phenomenon or relatively frequent? Would they only be visable if there was a low inversion level? -- Roger Kelly to reply replace the IP address above with ceressenior.com |
#8
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All you need is good old British pollution, then you
can see them and use them just like Cu!!! Jim At 13:24 24 June 2005, Owain Walters wrote: To echo what John said, they are very common in the UK. I think the biggest aid to help you see them will be the type of sunglasses you have. I use Oakley Eye Jackets with brown lenses and they are excellent for Haze Caps and cloud definition. Owain At 12:42 24 June 2005, Hl Falbaum wrote: They are common here in Georgia, USA (Southeastern USA) in the summer. We too have haze on high pressure summer days, with dewpoints in the 55-65 F days. Haze 'domes' are best seen when near the inversion level but when you need a thermal, you are not there! They can be seen at all heights, but are best described as 'haze clumps (or clusters)' and only when 'backlighted' by the sun. They can be seen without sunglasses, and moderate blue blocking helps. Polarization is OK if your canopy is perfect. Otherwise, the tress areas in the plastic can be confusing. It is not unusual to see a haze clump become a small Cu if there is enough moisture. -- Hartley Falbaum 'John Galloway' wrote in message ... Haze domes are very commonly visible in the hazy UK on high pressure days. They can be seen from the ground if the inversion is low early in the day. In the air they are easily seen from within a couple of thousand feet of the inversion. You need some haze and a thermal to form a dome and to be looking in the right direction more or less into sun for them to be clearly visible. On an XC course about 12 ago Andy Davis told us that when he was flying on a difficult blue day in the wrong direction for the haze domes to be visible he spent a lot of time looking back over his shoulder for the thermals behind him to line them up or, if necessary, to turn back to one. John Galloway At 17:42 23 June 2005, Roger Kelly wrote: Any 'haze dome' experts out there? Last weekend we had two blue days and having read Bob Wander's 'The Art of Thermaling .. Made Easy' in which he states that haze domes can be seen from the ground, I spent a lot of my time both on the ground and in flight looking for them. No doubt conditions have to be just right for them to be seen, but I have yet to see one, or recognize one. Can anyone describe what a haze dome looks like. From the air ... from the ground? Are they more visable in dry or humid conditions? Are they a rare phenomenon or relatively frequent? Would they only be visable if there was a low inversion level? -- Roger Kelly to reply replace the IP address above with ceressenior.com |
#9
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I will second the brown lenses.
Frank Owain Walters wrote: To echo what John said, they are very common in the UK. I think the biggest aid to help you see them will be the type of sunglasses you have. I use Oakley Eye Jackets with brown lenses and they are excellent for Haze Caps and cloud definition. Owain At 12:42 24 June 2005, Hl Falbaum wrote: They are common here in Georgia, USA (Southeastern USA) in the summer. We too have haze on high pressure summer days, with dewpoints in the 55-65 F days. Haze 'domes' are best seen when near the inversion level but when you need a thermal, you are not there! They can be seen at all heights, but are best described as 'haze clumps (or clusters)' and only when 'backlighted' by the sun. They can be seen without sunglasses, and moderate blue blocking helps. Polarization is OK if your canopy is perfect. Otherwise, the tress areas in the plastic can be confusing. It is not unusual to see a haze clump become a small Cu if there is enough moisture. -- Hartley Falbaum 'John Galloway' wrote in message ... Haze domes are very commonly visible in the hazy UK on high pressure days. They can be seen from the ground if the inversion is low early in the day. In the air they are easily seen from within a couple of thousand feet of the inversion. You need some haze and a thermal to form a dome and to be looking in the right direction more or less into sun for them to be clearly visible. On an XC course about 12 ago Andy Davis told us that when he was flying on a difficult blue day in the wrong direction for the haze domes to be visible he spent a lot of time looking back over his shoulder for the thermals behind him to line them up or, if necessary, to turn back to one. John Galloway At 17:42 23 June 2005, Roger Kelly wrote: Any 'haze dome' experts out there? Last weekend we had two blue days and having read Bob Wander's 'The Art of Thermaling .. Made Easy' in which he states that haze domes can be seen from the ground, I spent a lot of my time both on the ground and in flight looking for them. No doubt conditions have to be just right for them to be seen, but I have yet to see one, or recognize one. Can anyone describe what a haze dome looks like. From the air ... from the ground? Are they more visable in dry or humid conditions? Are they a rare phenomenon or relatively frequent? Would they only be visable if there was a low inversion level? -- Roger Kelly to reply replace the IP address above with ceressenior.com |
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