Validity of Station Data

Just new to Tempest as I just powered mine on yesterday. But have been reading a lot for several weeks leading to my decision to purchase and make my station public.

Question - how does Tempest decide wether a station’s data is valid? I have seen several that are installed inches away from their house wall, for sake of convenience as they can almost reach out their window. But a very poor location to collect accurate data as the station is in total shadow of their house. So wind speed, direction, temp, even rain detection is ALL in error. So how can Tempest data collection decide what is accurate real data and what is bogus?

The Tempest returns valid data for the location it is at. If you want data from a different location, obviously it has to be placed at that location. I can guarantee that very few Tempest stations are placed at 30 feet.

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Maybe I didn’t get the gyst of my message across correctly - I try again;

Data is always VALID - great!

My point is, how valuable is a tempest placed 1 foot away from a building that creates a shadow for wind speed & direction - bleeds heat of it in the winter - shelters it from the correct rain amount, etc, etc

That is my point - yes, Tempest data collection sees the data is correct, in that it has correct, values, signal level is good, etc - however the values are CRAP. And how then does the Tempest AI decide which weather data to NOT use to massage into the Near Cast weather for that area?

And my initial thought, is that tempest servers have NO WAY to tell how accurate (truly represent the weather) of those values.

TDK

Your point was made just fine in your first post. The values are only crap if you are expecting all Tempest data to NOT be microclimate data. If you want the data to be standard meteorological data, don’t look at Tempest data. That is my point.

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I ask because I read so much about Tempest using this NCT - Near Cast Technology - where it relies on other weather stations in my area to “average?” our data collectively to give us a more accurate weather forecast?

So the numbers I read off my Tempest as exact for my weather station location and not massaged in any way with other stations very near to me?

TDK

I posted a link in your other thread which might answer some of your questions. For rain, you can turn off NearCast Rain if you want, but you probably will want to submit rain calibration data for you station to get it a little more accurate. Remember that all rain measurement equipment have limitations, even manual ones. For example, high winds at a manual gauge can cause rain to float over the opening, thus reducing the measured amount.

The Solar sensor needs a few days of clear sky around solar noon to calibrate. The days don’t have to be consecutive.

Read the link in the other thread. I found it by going through the Help link in the app and searching.

As far as I know, Nearcast only uses non-Tempest data licensed from one or more alternate sources…

The data is only as valid as it dictated by the constraints of how you sited the sensor.

Given that a Tempest does not have two sensors, you can’t optimize for both wind speed (10m suggested) and temperature (maybe 1-2m suggested) anyway. So no Tempest station can possibily meet the sensor siting suggestions from the various government agencies unless you have two Tempests.

Yet another reason I liked the old Air+Sky setup better…

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