China - iNaturalist World Tour

We’re featuring on China on the World Tour today.

Here’s the GADM Level 1 and Level 2 places we’re using. Thoughts on these places?

Have you tried using iNaturalist in China? What has been your experience?

it’s sort of a tangent, but this was mentioned in another thread a while back:

in the interactive top observers map, why does amarzee show up in South Korea and liujimfood show up in Taiwan while loarie shows up in Yunnan? seems like something is inconsistent here. South Korea and Taiwan do seem to be the center of gravity for amarzee’s and liujimfood’s total (including non-China) observations, repsectively, but California seems to be the center of gravity for loarie’s observations, not Yunnan.

the algorithm for the figure is to first fetch the top 50 users using the same API call used here:

but to calculate the centroid for each of these users, its just looking at all observations within the bounding box around the country rather than using the country boundaries to make the calculation quicker.

That means while amarzee is in the top 50 users based on obs inside the boundary, and the icon is scaled based on the number of obs inside the boundary, the centroid is also considering Korean obs that are inside the bounding box that encompasses China but outside the China boundary.

I know its not perfect, but the centroid calculation is slow to compute and using the country boundaries rather than just the bounding box makes it even slower

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