The first being a very few submitted tracks of handheld click counters with limited accuracy and no reporting of the peaks across the breadth of gamma spectrum; the second being a decades long high resolution 256 channel 40 litre crystal pack calibrated, normalised, geophysical survey of the entire continent.
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On the Internet, nobody knows you're a dog, because if you are, you are VERBOTEN according to the terms of service.
I left at the terms of service. I just wanted to see a map, it’s not worth trying to figure out what rights they want to take from me in order to do a quick browse.
The changing scales and meaning while zooming in and out makes it hard to derive conclusion from these measurements.
Sometimes it looks like somebody just used a more sensitive or uncalibrated device or is carrying a nuclear warhead around during an entire route of measuring.
From my observations it also seems to vary a lot depending on how the person recording behaves. Some people just walk around logging reading along the way. Others go out of the way to find interesting above background level radioactive objects and place the measurement equipment right next to those. Like finding 2 pieces of granite having 6x the background level in a giant pile of other rocks.
Another interesting pattern I saw while browsing around was increased level next to every fancy cast iron light fixture along a specific bridge. The bridge was made mid 20th century so I don't think they are old enough to have used thorium gas light mantles.
Yeah, and I was hoping that you could still look at high-level averaging over a country ("maybe the bad data will average out") but when I looked at a few hotspots it appears that those all came down to a couple uncalibrated-looking devices.
Not very useful or interesting in its current form, unfortunately.
Yeah I checked some tracks and it basically looked like the longer someone spent in a place, the higher the readings got. Maybe when the device doesn't get a lot of ventilation it starts to misread.
Pretty much, there are no shortage of ways to merge such data badly.
Many devices, uncalibrated and drifting, poor time normalisation to address counts accumulating when lingering, ... ffs they probably don't even adjust for cosmic or radon ...
( TBF the last two are pretty picky objections unless you're going hardcore geophysical professional )
Your general point is true, but in this case the devices are not really sensitive enough for radon to matter and the same is usually true for cosmic radiation.
When capturing open-air terrestrial tracks they are more or less uranium and thorium detectors.
This is a radiation map of Australia: https://www.ga.gov.au/bigobj/GA13928.pdf ( gridded data available for d/load )
The first being a very few submitted tracks of handheld click counters with limited accuracy and no reporting of the peaks across the breadth of gamma spectrum; the second being a decades long high resolution 256 channel 40 litre crystal pack calibrated, normalised, geophysical survey of the entire continent.
https://youtu.be/HwAO5IET0xw?si=sPeOpu8p9tTtRMVo
On the Internet, nobody knows you're a dog, because if you are, you are VERBOTEN according to the terms of service.
The official stance was to keep no count and so the count remained NaN.
Sometimes it looks like somebody just used a more sensitive or uncalibrated device or is carrying a nuclear warhead around during an entire route of measuring.
Another interesting pattern I saw while browsing around was increased level next to every fancy cast iron light fixture along a specific bridge. The bridge was made mid 20th century so I don't think they are old enough to have used thorium gas light mantles.
Not very useful or interesting in its current form, unfortunately.
Many devices, uncalibrated and drifting, poor time normalisation to address counts accumulating when lingering, ... ffs they probably don't even adjust for cosmic or radon ...
( TBF the last two are pretty picky objections unless you're going hardcore geophysical professional )
When capturing open-air terrestrial tracks they are more or less uranium and thorium detectors.
https://radiaverse.com/map#15.65/40.782/-73.974
who knew we kept such things just lying around :)
If all the data is crowdsourced it’s probably the German Atom-Angst