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R = Difference WV6.2 - WV7.3 G = Difference IR3.9 - IR10.8 B = Difference NIR1.6 - VIS0.6

RGB 05-06, 04-09, 03-01 (“Ice Particle Size") devised by: J. Kerkmann. R = Difference WV6.2 - WV7.3 G = Difference IR3.9 - IR10.8 B = Difference NIR1.6 - VIS0.6. Applications: Severe Convective Storms, Hurricanes, High-level Wave Clouds, Dust Polluted Ice Clouds

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R = Difference WV6.2 - WV7.3 G = Difference IR3.9 - IR10.8 B = Difference NIR1.6 - VIS0.6

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  1. RGB 05-06, 04-09, 03-01 (“Ice Particle Size") devised by: J. Kerkmann R = Difference WV6.2 - WV7.3 G = Difference IR3.9 - IR10.8 B = Difference NIR1.6 - VIS0.6 Applications: Severe Convective Storms, Hurricanes, High-level Wave Clouds, Dust Polluted Ice Clouds Area: Full MSG Viewing Area Time:Day-Time (best around midday)

  2. RGB 05-06, 04-09, 03-01 (“Ice Particle Size") devised by: J. Kerkmann Recommended Range and Enhancement: Beam Channel Range Gamma Red WV6.2 - WV7.3 -35 … +5 K 1.0 Green IR3.9 - IR10.8 -5 … +60 K 0.5 Blue NIR1.6 - VIS0.6 -75 … +25 % 1.0

  3. Ch.05 -Ch.06 Ch.04 -Ch.09 Ch.03 -Ch.01 MSG-1, 8 September 2003, 12:00 UTC RGB Composite 05-06, 04-09, 03-01

  4. Small Ice Particles in Severe Convective Storms HRV RGB 05-06,04-09,03-01 29 June 2006

  5. Small Ice Particles in Convective Clouds with Cold Base Cb Cloud (small ice, IR3.9r=16%) MSG-2, 3 April 2008, 12:30 UTC

  6. Small Ice Particles in “Polluted” Clouds Thick Ice Cloud (small ice) dust outbreak MSG-1, 22 February 2007, 12:00 UTC

  7. Small Ice Particles in High-level Lee Cloudiness Very cold clouds(lee cloudiness) withsmall ice particles MSG-1, 19 March 2007, 08:00 UTC RGB WV6.2-WV7.3, IR3.9-IR10.8, NIR1.6-VIS0.6

  8. Small Ice Particles in Pileus Clouds André Simon, Mária Putsay, ÁkosHorváth: Is the appearance of this yellow spot connected to the Pileus? 15:27 UTC Pileus cloud Balatonalmádi

  9. ... dust changes cloud microphysics! small ice particles (IR3.9r > 10%) 24-h Dust Day Microphysics Ice Particle Size Met-8, 22 February 2007, 12:00 UTC

  10. Comparison RGB 02,04r,09 vs RGB 05-06,04-09,03-01 RGB 02, 04r ,09 RGB 05-06, 04-09, 03-01 better identification of young, severe storms MSG-1, 13 June 2003, 12:00 UTC

  11. RGB Ice Particle Size Global View MSG-1 5 September 2004 15:00 UTC

  12. RGB Ice Particle SizeInterpretation of Colours Deep precipitating cloud (precip. not necessarily reaching the ground) - high-level cloud - large ice particles Deep precipitating cloud (Cb cloud with strong updrafts and severe weather)* - high-level cloud - small ice particles *or thick, high-level lee cloudiness with small ice particles Thin Cirrus cloud (large ice particles) Thin Cirrus cloud (small ice particles) Ocean Land

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