The EUMETSAT Nighttime Microphysics RGB provides a distinction between low clouds and fog. The RGB uses a channel difference 12.3−10.3 µm for red, a channel difference 10.3−3.9 µm for green, and 10.3 µm for blue. For more details, see the Nighttime Microphysics RGB Quick Guide PDF.

With the image looper, you can do the following:

• Step through images by
  • Clicking and dragging the circle on the current frame slide bar
  • Clicking the Start/Stop, Backward, or Forward buttons
  • Using the left-arrow ← key to step backward, right-arrow key → key to step forward, or Spacebar key to start and stop
• Zoom in by
  • Clicking the Left Click or Scroll with a mouse or touchpad to zoom in
  • Pressing the CTRL + Left Click, CMD + Left Click, or Scroll to reset
• Control refreshing images by
  • Clicking the Refresh button to reload the current imagery for the latest
  • Clicking the Disable Auto Refresh button to stop automatic loading new images
  • Clicking the Enable Auto Refresh button to allow automatic loading new images
• Show the location/coordinates by
  • Clicking the Show Location button to enable
  • Hovering the cursor on the image
  • Clicking the Hide Location button to disable
• Measure the distance and bearing in the "to" convention by
  • Clicking the Show Distance button to enable
  • Clicking and dragging the cursor on the image
  • Clicking the Hide Distance button to disable
• Annotate the image by
  • Clicking the Annotate button to display the control panel
  • Clicking the Finish button to stop annotating and erase current annotations
  • Clicking the Capture button to save everything displayed on the current image
  • NOTE: Annotations do not get saved when exporting to an MP4
• Save current imagery by
  • Clicking the Make MP4 button to save a video of the current imagery, enabled overlays, and zoom level
  • Clicking the Make GIF button to save an animated GIF of the current imagery, enabled overlays, and zoom level
• Control overlays by toggling overlay checkboxes and radio buttons