3 ms·

Some harrowing before and after photos from a Maxar instrument via LA Times (may be pay walled): https://www.latimes.com/california/story/2025-01-08/shocking-b

Some harrowing before and after photos from a Maxar instrument via LA Times (may be pay walled): https://www.latimes.com/california/story/2025-01-08/shocking-before-and-after-satellite-images-show-destruction-of-malibu-and-altadena-neighborhoods https://www.latimes.com/california/story/2025-01-08/shocking... This shows Altadena, just east of JPL, and Malibu (separate fires, of course).

martinpw 2y ago
This is a horrific satellite picture of Altadena: https://media.cnn.com/api/v1/images/stellar/prod/06-closer-swir-view-of-burning-buildings-altadena-california-08jan2025-wv3.jpg?c=original&q=w_1280,c_fill https://media.cnn.com/api/v1/images/stellar/prod/06-closer-s...
- lkjdsklf 2y ago
  wow.
- ZeroGravitas 2y ago
  The blue and green colour small areas suggest this is a false color image that maps colours to a value and coincidentally looks like a fire. Presumably it's measuring heat or something vaguely relevant but I don't trust my immediate visceral reaction to it.
  - deleted 2y ago
    [deleted]
  - mturmon 2y ago
    The image filename contains SWIR which is a clue. Several instruments can sense emissions in short-wave IR which light up for fires (and hot smoke plumes, and some industrial plants). E.g., VIIRS which is a successor to MODIS (https://www.earthdata.nasa.gov/data/instruments/viirs/viirs-i-band-375-m-active-fire-data https://www.earthdata.nasa.gov/data/instruments/viirs/viirs-...). The resolution in the posted image is much better than satellite, however. This implies that it's an airborne platform like FIRIS (https://wifire.ucsd.edu/firis-in-depth https://wifire.ucsd.edu/firis-in-depth). It also uses IR.
    - martinpw 2y ago
      The image has the label MAXAR at top right. I believe that company only does satellite imagery? Also articles that link to the image call it satellite data, eg: https://www.cnn.com/2025/01/08/us/video/images-fire-before-after-lcl-digvid https://www.cnn.com/2025/01/08/us/video/images-fire-before-a...
    - bragr 2y ago
      They've been doing FIRIS flights over the fires under the call sign INTEL 24
no-reply 2y ago
https://archive.is/gMzez https://archive.is/gMzez

martinpw 2y ago

This is a horrific satellite picture of Altadena: https://media.cnn.com/api/v1/images/stellar/prod/06-closer-swir-view-of-burning-buildings-altadena-california-08jan2025-wv3.jpg?c=original&q=w_1280,c_fill https://media.cnn.com/api/v1/images/stellar/prod/06-closer-s...

lkjdsklf 2y ago
wow.
ZeroGravitas 2y ago
The blue and green colour small areas suggest this is a false color image that maps colours to a value and coincidentally looks like a fire. Presumably it's measuring heat or something vaguely relevant but I don't trust my immediate visceral reaction to it.
- deleted 2y ago
  [deleted]
- mturmon 2y ago
  The image filename contains SWIR which is a clue. Several instruments can sense emissions in short-wave IR which light up for fires (and hot smoke plumes, and some industrial plants). E.g., VIIRS which is a successor to MODIS (https://www.earthdata.nasa.gov/data/instruments/viirs/viirs-i-band-375-m-active-fire-data https://www.earthdata.nasa.gov/data/instruments/viirs/viirs-...). The resolution in the posted image is much better than satellite, however. This implies that it's an airborne platform like FIRIS (https://wifire.ucsd.edu/firis-in-depth https://wifire.ucsd.edu/firis-in-depth). It also uses IR.
  - martinpw 2y ago
    The image has the label MAXAR at top right. I believe that company only does satellite imagery? Also articles that link to the image call it satellite data, eg: https://www.cnn.com/2025/01/08/us/video/images-fire-before-after-lcl-digvid https://www.cnn.com/2025/01/08/us/video/images-fire-before-a...
  - bragr 2y ago
    They've been doing FIRIS flights over the fires under the call sign INTEL 24

no-reply 2y ago

https://archive.is/gMzez https://archive.is/gMzez