"High IASI Metop-C Ash/Dust BTD (9 in [9.0, 10.1]) at (40N,82E) 04:58Z"

"2024-05-21 04:58Z granule 100"

"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)"
  39.50,   82.24,   10.07,   -0.98,  302.77,  292.71
  39.70,   82.33,   10.06,   -0.66,  302.86,  292.81
  39.96,   82.45,    9.69,   -0.66,  302.35,  292.66
  40.11,   81.86,    9.57,   -0.45,  303.06,  293.49
  39.25,   82.13,    9.50,   -0.66,  302.39,  292.88
  39.05,   82.04,    9.39,   -0.72,  304.26,  294.86
  40.16,   82.55,    9.36,   -0.58,  303.11,  293.75
  40.30,   81.95,    9.07,   -0.29,  302.31,  293.25
  40.19,   81.54,    9.07,   -0.62,  300.75,  291.69