"High IASI Metop-C Ash/Dust BTD (2 in [9.000, 9.056]) at (39N,81E) 05:13Z"

"2024-05-01 05:13Z granule 105"

"Brightness temperature difference for channel 2347 (1231.5
cm-1) minus channel 2093 (1168 cm-1). High values almost
always indicate dust storms or volcanic eruptions.

See https://www.ospo.noaa.gov/pub/Atmosphere/Soundings/iasi/m03/alerts/ASH_BTD/index.html."

Latitude (N), Longitude (E), "Ash Brightness Temperature Difference", "SO2 Brightness Temperature Difference", "Brightness Temperature for Channel 2347 (1231.50 cm-1)", "Brightness Temperature for Channel 2093 (1168.00 cm-1)"
  38.54,   81.29,    9.06,   -0.31,  299.10,  290.04
  39.13,   81.03,    9.03,   -0.22,  299.06,  290.03