Very happy to see GK-2A* data posted for free as open data – I’ve been wanting to get my mitts on this for ages. I burnt out on the green band stuff I was working on but perhaps it’s time to restart.
https://registry.opendata.aws/noaa-gk2a-pds/
* The South Korean member of the GOES-R and Himawari-8/9 family of geostationary weather satellites.
Next time I write a CV it’s going to have a line like “I relish learning new datasets and working to make sense of them” but it’s going to be a lie because here we see longitude stored in radians:
Someone’s going to be like “Ah, but this is more theoretically pure, because—” Oh, all right, hot shot, it is theoretically pure to use -100000000000000 to mean undefined? Is that what a physicist would do? No, please, let us know.
To my great though trivial annoyance, their processing pipeline cuts off the limb. It does look great, though, as expected. This is from the 4/20 eclipse, which @dscovr_epic also got an excellent frame of. Link to a 30 megabyte 1 km/pixel version: https://xoc.s3.amazonaws.com/also/gk2a-2023-04-20-0400.jpeg
@vruba Pirates kept one of their sensors covered with an eye patch for these situations.
Just for my own sick amusement, here’s what happens if you white-balance off a cloud near totality and crop: https://xoc.s3.amazonaws.com/also/gk2a-2023-04-20-0400-crop.jpeg