The Hodograph turns up in a few places and is about constant acceleration. As it turns out the hodograph of an orbit is a circle, perhaps of interest to some Talkshop readers.
A text on this by Dr James B. Calvert
Associate Professor Emeritus of Engineering, University of Denver
Registered Professional Engineer, State of Colorado
http://mysite.du.edu/~jcalvert/phys/hodo.htm
Interesting chap, if you want more http://mysite.du.edu/~jcalvert/index.htm
All this turned up, when I was trying to understand the late autumn St Jude’s day storm.
Figure 2
Two day image from Chilbolton Observatory cloud radar, storm centre for this site pass at about 5am on the 2nd day.
Figure 3
As the “eye” passes there is an extreme shift of wind direction combined with a blast of wind, what does real damage. This also shows the temperature changes. Red ice line in the radar image shows a temperature profile too.
Not many miles upwind…
Larkhill Met Office site managed to pop up a balloon at 6am just after the 28th October storm centre passed. It met 250kt wind at 8000m if I read the radiosonde data correctly.
Figure 4
Launching at 6am, standard time, when there are 60mph gusts, ouch and is chance this was so close to the storm centre for this site. In this case the damaging effects elsewhere (have data on that) came from an abrupt wind shift which does not seem the case for this site. Storm centre was forming, hence damage tended to be further east.
Figure 5
The hodogram.
Anyone able to decode the path of this balloon please? Where did it go?
Figure 6
StuveT radiosonde plot.
Post by Tim.
Tallbloke's Talkshop 
” 60mph gusts, ouch and is chance” Ouch indeed. ;p
At 6am on a dark horrible morning, prepare and inflate, then try and choose a moment.
In the surfacestations list
Looks like the hut is at the top, wind was westerly-ish so there was space but also ground turbulence from the buildings… maybe they shelter slightly.
Someone hereabouts has launched these things and can comment.
Hi Tim, I did say (elsewhere here) that the ‘eye’ of the storm was the major player during a ‘tidal surge’ event. ‘Winds’ are something else, but I see your ‘connector’ with gravity. 🙂
It was posited by Einstein that a constant acceleration force generated a ‘reactionary force’ that was indistinguishable from ‘gravity’ (per se). The ‘posit’ remains un-refuted to this day, in fact it threw the prior understanding of the properties of a centrifuge into disarray.
The best hint I can offer here is that a ‘vortex’ alters the ‘vector direction’ that ‘gravity’ exerts its effort for a ‘fluid pressure’ (think ‘conical pendulum’). Thus, ‘weather anticyclones/cyclones’ alter Earth’s ‘surface pressure’ where they are present (look to any ‘barometer’ for confirmation).
The ‘lowest surface pressure’ is always apparent at the ‘centre’ (eye) of any ‘storm’ that Earth exhibits. Thus, is also, ‘the region’ into which most ‘surge’ waters flow from changing ‘surface pressure influences’ (think of physical/weight displacement in your ‘eureka’ moment).
Figure 5 needs an explanation of the vertices of the graph before I could try to understand it. Figure 6 looks like it could be a humidigraph of a radiosonde flight (tracing both the dry and wet lapse rates), but online research is impossible for these when you post ‘.PNG’ images (the ‘source’ is the ‘post that you referred to them’). More ‘source’ (original) data please. 🙂
Best regards, Ray.
‘orses mouth is here
http://weather.uwyo.edu/upperair/sounding.html
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