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 Post subject: Plotting pressure in Hpa
PostPosted: Sat Jul 26, 2008 12:38 pm 
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Joined: Mon Apr 07, 2008 11:42 am
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Anyone able to help a newbie on how to plot the pressure in hectopascals and not inch?
seems people this side cant understand anything other then hectopascals...simpletons


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 Post subject:
PostPosted: Sun Jul 27, 2008 9:38 am 
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Location: Mid-Wales
I use DAWS and also have DA Equinox and both plot pressure in mb as standard.
1mb = 1 HPa and mb (HPa) is the standard international reporting unit.
I think only in North America are inches of Hg used as the rest of the world use HPa and deg C.

Scripting: H500 will give you temp etc at 500mb. Also SLP is Sea Level Pressure in mb.
DegC or degf temperature in whatever unit are specified ie. C or F

Regards


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 Post subject:
PostPosted: Sun Jul 27, 2008 3:29 pm 
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Hi there, thanks for the fast response.

RE pressure:
When i generate it i get the QNG (hpa) at the H or Low pressure then the lines radiating out give it to me in mb. ie 23, 21, 19 etc i would prefer them to read 1021, 1022, 1023 etc etc
I need all the lines scale to be in hpa.

1mb=100hpa, so somehow i need to be able to get it to show the correct values.


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 Post subject:
PostPosted: Mon Jul 28, 2008 12:57 am 
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Location: Mid-Wales
1mb = 1hpa they are the same unit but different names.

The display you are seeing is the normal display and I do not know any way of changing it. Maybe someone else does but my DAWS and DA Equinox display as 21,22, and not as 1021, 1022mb.

Regards


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 Post subject:
PostPosted: Mon Jul 28, 2008 9:26 am 
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if anyone knows how it will be great as people down here are a little slow to anything they have not seen before


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 Post subject:
PostPosted: Wed Jul 30, 2008 12:19 pm 
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Joined: Mon Apr 07, 2008 11:42 am
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FINALLY think i found the solution
try:
HILO CONT CINT=1 LINE=1 ALT
gives the pressure in 4 digits and not 2

(well it worked just now and now seems to be messing with me)


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 Post subject:
PostPosted: Sat Mar 28, 2009 10:30 am 
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Joined: Sat Mar 28, 2009 10:28 am
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Location: south africa
when hpa goes higher eg. 700-1005 does it means that the weather gets better or worse?


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 Post subject:
PostPosted: Sat Mar 28, 2009 8:13 pm 
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Joined: Sun Nov 30, 2003 5:05 am
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Location: Fort Worth, TX
HPA has nothing to do with weather getting better of worse per se. It is a unit of measurement that is used in describing pressure. HPA and mb are the same, just different names. 500mb = pressure between 520 - 580mb / hpa.


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 Post subject:
PostPosted: Sun Mar 29, 2009 6:35 am 
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Location: south africa
Ah oky Thanks,because i bought this watch that gives you hpa pressure so i just want to know what do i use it for?


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 Post subject:
PostPosted: Sun Mar 29, 2009 1:14 pm 
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Joined: Sun Nov 30, 2003 5:05 am
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Location: Fort Worth, TX
You could correlate the pressure to height (distance above sea level) to know your elevation. Sounds like an aviators watch. Make sure you keep it calibrated.

Greg Higgins


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