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#1
December 8th 11, 04:58 PM
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110 kt mean Cairngorm summit
Bit blowy up there.
MartinR |
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#2
December 8th 11, 07:50 PM
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110 kt mean Cairngorm summit
MartinR wrote:
Bit blowy up there. MartinR --------------------- Is the 173 mph record in danger I wonder? Was that measurement a gust? Dave |
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#3
December 8th 11, 07:57 PM
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110 kt mean Cairngorm summit
Dave Cornwell wrote:
MartinR wrote: Bit blowy up there. MartinR --------------------- Is the 173 mph record in danger I wonder? Was that measurement a gust? Dave Of course, one can never be really sure because, as far as I know, the instrumentation is only exposed for a few minutes every hour - at least that was the case in the past. Unless there is continuous recording you can never know what exactly is the maximum gust. -- Norman Lynagh Tideswell, Derbyshire 303m a.s.l. |
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#4
December 8th 11, 08:06 PM
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110 kt mean Cairngorm summit
Norman wrote:
Dave Cornwell wrote: MartinR wrote: Bit blowy up there. MartinR --------------------- Is the 173 mph record in danger I wonder? Was that measurement a gust? Dave Of course, one can never be really sure because, as far as I know, the instrumentation is only exposed for a few minutes every hour - at least that was the case in the past. Unless there is continuous recording you can never know what exactly is the maximum gust. Apologies (again) for replying to my own postings. I'm making a habit of this! From the Cairngorm weather website: ----------------------------------------------------- The instruments are exposed for 3 minutes every half hour, with the mean wind speed being the 2.5 minute mean of readings made every 2.5 seconds. The max gust and the min wind speed are the highest and lowest readings over the 2.5 minute period. ----------------------------------------------------- The absolute maximum gusts are therefore not recorded and it is not possible to say that a particular event produced "record" maximum gusts. -- Norman Lynagh Tideswell, Derbyshire 303m a.s.l. |
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#5
December 9th 11, 04:06 PM
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110 kt mean Cairngorm summit
On Dec 8, 7:57*pm, "Norman" wrote:
Dave Cornwell wrote: MartinR wrote: Bit blowy up there. MartinR --------------------- Is the 173 mph record in danger I wonder? Was that measurement a gust? Dave Of course, one can never be really sure because, as far as I know, the instrumentation is only exposed for a few minutes every hour - at least that was the case in the past. Unless there is continuous recording you can never know what exactly is the maximum gust. -- Norman Lynagh Tideswell, Derbyshire 303m a.s.l. The Met Office SIESAWS on Cairn Gorm is a continuous recording system. The Heriot-Watt AWS samples twice per hour (when it's working!) Daniel. |
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#6
December 9th 11, 05:45 PM
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110 kt mean Cairngorm summit
Desperate Dan wrote:
On Dec 8, 7:57*pm, "Norman" wrote: Dave Cornwell wrote: MartinR wrote: Bit blowy up there. MartinR --------------------- Is the 173 mph record in danger I wonder? Was that measurement a gust? Dave Of course, one can never be really sure because, as far as I know, the instrumentation is only exposed for a few minutes every hour - at least that was the case in the past. Unless there is continuous recording you can never know what exactly is the maximum gust. -- Norman Lynagh Tideswell, Derbyshire 303m a.s.l. The Met Office SIESAWS on Cairn Gorm is a continuous recording system. The Heriot-Watt AWS samples twice per hour (when it's working!) Daniel. I stand corrected. I only knew of the Herriot Watt AWS. -- Norman Lynagh Tideswell, Derbyshire 303m a.s.l. |
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