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Gorgeous. And, as a curious artist— is the 'GeoColor' image composited by the satellite camera or done manually afterward in post? Mostly, I'd love to see raw
by craftandhustle 8y ago
Gorgeous.
And, as a curious artist— is the 'GeoColor' image composited by the satellite camera or done manually afterward in post? Mostly, I'd love to see raw stills of the different bands they reference in the image (like the infrared band).
- infinitybeyond 8y agoI don't know the answer to your question, but I do have a link to the images you're interested in for GOES-16. Not sure if a similar page is available for GOES-17 mentioned in the article. https://www.star.nesdis.noaa.gov/GOES/GOES16_FullDisk.php https://www.star.nesdis.noaa.gov/GOES/GOES16_FullDisk.php
- __x0x__ 8y agoGOES 16 and 17 are identical.
- redavni 8y agoIt is done automatically after the imagery is downloaded from the satellite. They are complex combinations of multiple bands. The GOES-16 satellite has 6 (or 7, depending if you count shortwave ir) visible bands. Three are used for the red, green, and blue channels to get the "true color" image. Portions of other bands are used in combination with transparency to seamlessly combine the bands that show features the best. At night the IR bands are used in different combinations.
- JonathonW 8y agoThere's more information on the GeoColor products here: https://www.star.nesdis.noaa.gov/GOES/documents/QuickGuide_CIRA_Geocolor_20171019.pdf https://www.star.nesdis.noaa.gov/GOES/documents/QuickGuide_C... The short version: daytime imagery is derived from GOES-16's red, blue, and near-IR (band 3) channels, with a simulated green channel. Night imagery's all IR; the base map (with city lights) is static and derives from a different satellite.
- kylek 8y agoRelated, you might want to check out DSCOVR- https://epic.gsfc.nasa.gov/ https://epic.gsfc.nasa.gov/ If you've never heard of it, this bird always stays on the sunlit side of the planet and takes true color images
- SiempreViernes 8y agoIt takes actual full disk images too! None of this stitching shenanigance without the edge effects that all the geo orbit satelites do. Goes-17 sees at best 2x2 km boxes (igfov depends on wavelength) and uses mirrors on servos to quickly scan the disk. DSCOVR is simply far enought away that it can see the full disk. If you need reference materials for how earth like planets look from space, use DSCOVR images, everything else is fake!
- jcims 8y agoThis eclipse image reminds me of 2010 - https://epic.gsfc.nasa.gov/epic-galleries/2017/total_solar_eclipse/full/epic_1b_20170821181450.png https://epic.gsfc.nasa.gov/epic-galleries/2017/total_solar_e...