Dashboard/graphs show wrong Pressure 2.1 *solved*

[cbhiii]

The dashboard and graphs for pressure show the wrong value after the v2.1 upgrade.

In the dashboard the correct pressure is shown as SEA pressure and not the location pressure. These values appear to be reversed.

(The correct pressure reading is being sent to CWOP and Weather underground so it must be wrong in another section of the code)

I also found that the pressure scale shown in graphs for inHG is only showing 3 digits. The 4th digit is being cutoff.

[admin]

Hi,
have a look at my dashboard 0.7, Meteophub 2.1:



990 is the pressure as measured at the station. 993 is the corresponding sea level pressure. Thsi is right.

Historical values are all pressure at station.

May be it would be more straight forward to have all values at sea level? Can do... is easy to change in the flash application.

[cbhiii]

The pressure displayed in the Dashboard is opposite of what it was in version 2.0d.

The pressure on my Vantage Pro console reads 29.91 inches.

The display on the dashboard shows 29.91 in the small SEA area, not the main reading number above it.

This changed after upgrading to v2.1

This only affects graphs and dashboard. The correct reading 29.91 is being sent to Weather Underground and CWOP.

[admin]

As far as I know does the vantage display the sealevel pressure. So Meteohub shows the sea level pressure and the pressure at station's height. Meteohub makes use of the height given on the settings page.

So I don't see an error here, but it might be more clever to display the sea level pressures as the primary value.

It took me some time to realize what sea level pressure etc means. wikipedia did help me: http://en.wikipedia.org/wiki/Atmospheric_pressure

[cbhiii]

Then why is it different in version 2.0d?

Displayed on console: 29.91 inHG
Sent to Weather Underground: 29.91 inHG
Shown on Dashboard: 28.99 inHG

Why is dashboard different?

Why does my graph show 28.99 inHG instead of 29.91?

Ask someone running v2.0d if there pressure is the same after v2.1 upgrade. The readings are swapped in dashboard and lower in my graphs.

[admin]

In the very beginning of vantage support the pressure readings received from the vantage were recognized as station pressure. May be some of your graphs are from that time.

It turned out that vantage reports sea level corrected pressure, so Meteohub has to reflect this.

You can easily change your graph definitions by replacing the pressure sensors (thb0) by their \"sea level representatives\" (thb0-sea). Meteohub provides both to let you choose in graph definition.

If people prefer it, I can change the dashboard as well to focus on sea level values.

[cbhiii]

Let's focus on two things:

1) The Vantage console reads 29.91 and so the BIG number in the dashboard should be the same thing, just like in version 2.0d.

2) Wouldn't you agree that the the large font number in the reading should be the same as on the console?

I want the large number in dashboard to show what is on the console. So people looking at the dashboard know that the big font pressure reading is the one the national weather service uses.

[skyewright]

If people prefer it, I can change the dashboard as well to focus on sea level values.

I'll vote for that.
My understanding is that official met. figures are usually quoted as sea level pressures - for consistency and comparison.
I'd be quite happy to only see the sea level pressure on the dashboard (the local pressure is still available is the data files if it is needed for some sort of analysis), but if you want to show both that's fine so long as it's clear which is which.