[Imports] Thailand Land Use Import

[Stephan Knauss]

On 14.02.2021 12:50, Frederik Ramm wrote:
> On 2/13/21 15:42, Christoph Hormann wrote:
>> https://mc.bbbike.org/mc/?lon=100.402788&lat=13.544661&zoom=17&num=3&mt0=bing-satellite&mt1=mapnik&mt2=esri-satellite
>> https://mc.bbbike.org/mc/?lon=100.48933&lat=13.554559&zoom=16&num=3&mt0=bing-satellite&mt1=mapnik&mt2=esri-satellite
> 
> If this is indeed what the original poster was speaking of, I strongly
> object to the statement

Yes. This high-resolution mapping of thousands of small individual water 
features is what we are talking about in 
https://forum.openstreetmap.org/viewtopic.php?id=71743

Here the state before the revert:
https://i.postimg.cc/4NrJQhBL/bangkok-aquafarm-landuse.jpg

> What I see there is pure guesswork that will require more work in
> cleaning up than if a human being were to manually digitize these areas
> from aerial imagery.

Some users did this about five years ago. Mapping small villages in the 
area, highway infrastructure and water features:
https://www.openstreetmap.org/changeset/36419250
The offset in the imagery sources over time are leading to areas where 
features no longer align to current imagery. GPS tracks are sparsely 
available, so difficult to correctly align.

Stephan