JoNova
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Statistics
Have been following the Milton hurricane over at Chiefio who is expecting the storm to pass right over his house. Fortunately he is some way inland so hopes to not be too badly affected
A C Osborn made a very interesting post
“The point about the wind speed is they are now comparing apples with oranges when comparing modern hurricanes with old time ones.
Everyone knows the higher you measure the higher the wind speed.
The Saffir–Simpson hurricane wind scale is designed for 10m (ft) height, so using satellite top of column or aircraft drop devices always make them look worse on the SS scale.
But when measured at 10m they are always much lower, Ventusky and Nuschool report them at that standard.
If you look at Milton on Ventusky you can see all the variations of wind speed around the eye.
https://www.ventusky.com/22.063;-89.625
I replied
“That is an interesting site. The winds mostly look nothing extraordinary at the height they will impact on people and property.
Would be interesting to see the gradations i.e wind speed at ground level then in 5 metre increments to say the top of the highest skyscrapers in Florida or perhaps the top of some of the rides at Disney. Then compare those directly to the aircraft drop devices etc.”
This sounds a bit similar to Urban temperatures which, especially at night, can be radically different to those in rural areas due to UHI. Made worse by automatic weather stations which may take readings every 10 seconds then compare them to old records likely taken when the site was more rural and taken only t 2 distinct times, generally 6am and 6PM-not necessarily either the warmest or coldest times..
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Interesting point.
Wind speed measurements are clearly influenced by the height of the anemometer above the ground.
I did a quick search of the BOM site but have not yet discovered if there is a standard height for the measurement.
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Is this simple enough for Ed Minibrain to understand why more windmills will never make electricity affordable?
https://x.com/NetZeroWatch/status/1843669387418415450
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BP abandons goal to cut oil output, resets strategy
The company continues to target net zero emissions by 2050.
https://ogv.energy/news-item/exclusive-bp-abandons-goal-to-cut-oil-output-resets-strategy
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