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45

answers:

2

what is hectoPascAltimeter, is it air pressure in mbars?

check http://ws.geonames.org/findNearByWeatherXML?lat=43&lng=-2

+1  A: 

A Pascal as the SI pressure measurement: http://en.wikipedia.org/wiki/Pascal_(unit)

"In everyday life, the pascal is perhaps best known from meteorological barometric pressure reports, where it occurs in the form of hectopascals (1 hPa ≡ 100 Pa"

James
i wanted Atmospheric pressure in millibars, does anywhere in xml has it? how can i get it? or how can i convert it? sorry i have very less knowledge on weather, but i need it for my project
Basit
From that wikipedia article, "Standard atmospheric pressure is 101,325 Pa = 101.325 kPa = 1013.25 hPa = 1013.25 mbar = 760 Torr". Using that, you should be able to do the conversion from hPa to mBar.
Eric Perko
im sorry, im very dump, but can you tell me how can i calculate hpa to mbar? it would probally be easy for you and really helpful for me.
Basit
James
@James: Looks like... I feel silly for not noticing the 1 to 1 relationship when I copy-pasted.
Eric Perko
A: 

It's a QNH in hectopascals... so it's related to the barometric pressure, but not quite what you want; it's the altimeter setting to get an airplane's altimeter reading the actual height of the runway. Not useful for much other than aviation, because there are safety related corrections in there that are hard to reverse.

Andrew McGregor

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