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.
This one isn't on Wikipedia's list (at time of writing) unlike "Play it, Sam. Play 'As Time Goes By'" or "Why don't you come up sometime and see me?"
For context that above is processed and reduced data, for those that care.
The raw data (which was once online (and may still be, having shifted)) is full 256 channel counts + height + distance to ground + raw GPS packets + post processed GPS position + etc... straight out of the airframes (and additional "meta" data - the concurrent calibration runs, stripping weights, raw GPS base station packets, etc).
The data linked above is three values per grid cell post process - the full spectrums are normalised, then U-K-Th (Uranium, Potassium, Thorium) decay product peaks are extracted to reconstruct estimated U-K-Th values for a grid cell (and a pseudo colour image created from those three values)
Great for background environmental radiation mapping - useless for spotting out of band "stray" radiation events not of a natural origin.
For that you want to subtract a NASVD kernel from the data and look to the leftover peaks between the big three daughter decay peaks ( and similarly for removing radon smear, etc ).
The entirety of Fiji,and most of Mali should ideally also be online / available - but can be a tricky find (ditto many other places about the globe).
Before and after Pokhran-II India, (1998) should also be an interesting study that might be tricky to hoard the data for.
I apologize if this is answered in the PDF, but I couldn't find an explanation there - any idea why fairly large chunks were omitted from the map? Some of them seem like population centers, others look like nature preserves.
Crikey
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.
I think if this is only what they allowed it would be a useful since it would measure real world exposure.
Not very useful or interesting in its current form, unfortunately.
If you don't believe any of this naturally occurring phenomenon for some reason, there are several YouTube channels that check out these places, and try to find their own high activity areas/objects. There also subreddits dedicated to it,'and even a map where you can find places! ;)
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.
Might be worth pointing out the principle reason preventing radon removal from a click counter, no matter how sensitive, is the lack of a channeled spectrum bucketing counts by energy level, and the main reason cosmic cannot be removed is the lack of channeled stacked height descent readings allowing a ground level current cosmic estimate.
> When capturing open-air terrestrial tracks they are more or less uranium and thorium detectors.
and Potassium also- just all bundled together as a total count with no discernment.
Still, perhaps one day in the future, just as modern GPS carry a coarse ground / ellipsoid separation model in order to return 0 elevation at the seashore, perhaps rad counters will carry a coarse global radiation background model to focus on counts over and above the expected.
( again, unlikely due to lack of real sensitivity and channel bucketing )
This Claude sentence would be greatly improved by deleting everything after the comma. That clause adds nothing informationally and in some sense is using a very weird definition of describe and found.
>THE WORLD’S RADIATION MAP, MEASURED BY ITS PEOPLE
http://www.bbc.com/future/story/20181016-why-india-wants-to-...
https://radiaverse.com/map#15.65/40.782/-73.974
who knew we kept such things just lying around :)
I love me an honest map, it's absolutely load bearing for me.
This map is entertaining but it's not terribly useful scientifically.
If all the data is crowdsourced it’s probably the German Atom-Angst