topic_radi...conversion(1)

📦
version 8.4.2 · 5 versions
, in fedora 44

✨ Topic: radiometric conversion ✨

okay bestie, welcome to the radiometric conversion corner of GRASS GIS 💅 this is where we take raw sensor numbers and turn them into actual science — radiance, reflectance, brightness temperature, the whole glow-up. no cap. two modules live here and they're both iconic in their own way 👑

🛠️ the modules (aka the main characters)

  • i.aster.toar — Calculates Top of Atmosphere Radiance/Reflectance/Brightness Temperature from ASTER DN. so like… you feed it ASTER Digital Numbers and it hands you back the fancy atmospheric-top versions. obsessed. 🌈
  • i.landsat.toar — Calculates top-of-atmosphere radiance or reflectance and temperature for Landsat MSS/TM/ETM+/OLI 🛰️ fr fr, it handles the whole Landsat family tree — MSS, TM, ETM+, and OLI. one module, four sensors, main character energy.

👀 see also

See also the corresponding keyword radiometric conversion for additional references. like, if you want the receipts and the extra reading, that keyword is where they're at 🫶

🗂️ index vibes (go explore, babe)

  • Main index
  • Topics index
  • Keywords index
  • Graphical index
  • Full index
🌸 real talk: this is a topic overview page, so it's giving "table of contents" not "full tutorial". tap into the individual module pages for the actual flags and options, iykyk.

© 2003-2025 GRASS Development Team, GRASS GIS 8.4.2 Reference Manual — mwah 💖 this little page is part of GRASS GIS 8.4.2, brought to you by the GRASS Development Team, and yeah the copyright has been running since 2003 because legends stay legends 👑✨ thanks for coming to my ted talk, go convert some radiance bestie 🦋🌈💜

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