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pressure?
Posted: Tue 29 Mar 2011 7:24 pm
by n9mfk
hi Steve,
i have been work on some code using this code from cumulus
i have use cumulus names checked
in cumulus i see a trend of -0.025in/hr
cumulus is show falling
an the code i did is showing Fallingslowly
two question 1 should -0.025 show falling
2 in cumulus how do you convert from inhg to mb
thanks
Code: Select all
if ThreeHourlyPressureChangeMB > 6 then
presstrendstr := Risingveryrapidly
else if ThreeHourlyPressureChangeMB > 3.5 then
presstrendstr := Risingquickly
else if ThreeHourlyPressureChangeMB > 1.5 then
presstrendstr := Rising
else if ThreeHourlyPressureChangeMB > 0.1 then
presstrendstr := Risingslowly
else if ThreeHourlyPressureChangeMB > -0.1 then
presstrendstr := Steady
else if ThreeHourlyPressureChangeMB > -1.5 then
presstrendstr := Fallingslowly
else if ThreeHourlyPressureChangeMB > -3.5 then
presstrendstr := Falling
else if ThreeHourlyPressureChangeMB > -6 then
presstrendstr := Fallingquickly
else
presstrendstr := Fallingveryrapidly;
Re: pressure?
Posted: Tue 29 Mar 2011 7:31 pm
by Synewave
Are you trying to change the Cumulus code?
Or just your website scripts?
Re: pressure?
Posted: Tue 29 Mar 2011 7:38 pm
by steve
1 inHg = 33.86 mb
-0.025 in/hr = -0.85 mb/hr = -2.54 mb in three hours = "Falling".
Re: pressure?
Posted: Tue 29 Mar 2011 8:06 pm
by n9mfk
Hi Steve,
I can see how -0.025/33.86 wood = -0.85 mb/hr but then how do you get the -2.54
Thanks Beau
Re: pressure?
Posted: Tue 29 Mar 2011 8:14 pm
by n9mfk
Hi Paul,
im trying to make some code match cumulus Beau
Re: pressure?
Posted: Tue 29 Mar 2011 8:17 pm
by steve
n9mfk wrote:I can see how -0.025/33.86 wood = -0.85 mb/hr but then how do you get the -2.54
You multiply by three to get the three-hourly change that the trend code requires.
Re: pressure?
Posted: Wed 30 Mar 2011 12:06 pm
by steve
[New discussion on unrelated topic moved to Fine Offset section]
Re: pressure?
Posted: Wed 30 Mar 2011 3:14 pm
by n9mfk
Hi Steve,
I noted in this code
the values are the same as 3 hour is this wrong what the numbers be for hourly change
Code: Select all
if HourlyPressureChangeMB > 6 then
presstrendstr := Risingveryrapidly
else if HourlyPressureChangeMB > 3.5 then
presstrendstr := Risingquickly
else if HourlyPressureChangeMB > 1.5 then
presstrendstr := Rising
else if HourlyPressureChangeMB > 0.1 then
presstrendstr := Risingslowly
else if HourlyPressureChangeMB > -0.1 then
presstrendstr := Steady
else if HourlyPressureChangeMB > -1.5 then
presstrendstr := Fallingslowly
else if HourlyPressureChangeMB > -3.5 then
presstrendstr := Falling
else if HourlyPressureChangeMB > -6 then
presstrendstr := Fallingquickly
else
presstrendstr := Fallingveryrapidly;
thanks Beau
Re: pressure?
Posted: Wed 30 Mar 2011 3:40 pm
by steve
In the thread where I gave you that code originally, I told you that I had made a mistake and then quoted the correct code, with the variable named ThreeHourlyPressureChangeMB.
Re: pressure?
Posted: Wed 30 Mar 2011 4:06 pm
by n9mfk
Hi Steve what i was ask if there are 1 hour value what are the value for that ?
thanks