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APPLICATIONS OF METEOSAT SECOND GENERATION (MSG)

APPLICATIONS OF METEOSAT SECOND GENERATION (MSG). DETECTION OF CONTRAILS Author: Jochen Kerkmann (EUMETSAT) (kerkmann@eumetsat.de) Contributors: D. Rosenfeld (HUJ), HP Roesli (MeteoSwiss). Contrails over Southern Germany 26 September 2003. Contrails over Southern Germany. MSG-1

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APPLICATIONS OF METEOSAT SECOND GENERATION (MSG)

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  1. APPLICATIONS OF METEOSAT SECOND GENERATION (MSG) DETECTION OF CONTRAILS Author: Jochen Kerkmann (EUMETSAT) (kerkmann@eumetsat.de) Contributors: D. Rosenfeld (HUJ), HP Roesli (MeteoSwiss)

  2. Contrails over Southern Germany 26 September 2003

  3. Contrails over Southern Germany MSG-1 26 September 2003 08:00 UTC RGB Image 03-02-01 NIR1.6 / VIS0.8 / VIS0.6 Contrails

  4. Contrails over Southern Germany MSG-1 26 September 2003 08:00 UTC RGB Image 01-03-09 VIS0.6 / NIR1.6 / IR10.8 Contrails

  5. Contrails over Southern Germany MSG-1 26 September 2003 08:00 UTC RGB Image 01-04-09 VIS0.6 / IR3.9 / IR10.8 Contrails

  6. Contrails over Southern Germany MSG-1 26 September 2003 08:00 UTC RGB Image 02-03-04 VIS0.8 / NIR1.6 / IR3.9 Contrails

  7. Contrails over Southern Germany MSG-1 26 September 2003 08:00 UTC RGB Image 03-04-09 NIR1.6 / IR3.9 / IR10.8 Contrails

  8. Contrails over Southern Germany Contrails Channel 01 (VIS0.6) Channel 02 (VIS0.8) MSG-1, 26 September 2003, 08:00 UTC

  9. Contrails over Southern Germany Contrails Channel 03 (NIR1.6) Channel 04 (IR3.9) MSG-1, 26 September 2003, 08:00 UTC

  10. Contrails over Southern Germany Contrails Channel 05 (WV6.2) Channel 06 (WV7.3) MSG-1, 26 September 2003, 08:00 UTC

  11. Contrails over Southern Germany Contrails Channel 07 (IR8.7) Channel 08 (IR9.7) MSG-1, 26 September 2003, 08:00 UTC

  12. Contrails over Southern Germany Contrails Channel 09 (IR10.8) Channel 10 (IR12.0) MSG-1, 26 September 2003, 08:00 UTC

  13. Contrails over Southern Germany Contrails Channel 11 (IR13.4) Channel 12 (HRVIS) MSG-1, 26 September 2003, 08:00 UTC

  14. Contrails over Southern Germany Click on the icon tosee the animation(08:00 - 12:00 UTC,AVI, 6407 KB) ! MSG-1 26 September 2003 08:00 UTC Channel 12 (HRV)

  15. Contrails over Southern Germany Click on the icon tosee the animation(09:00 - 12:00 UTC,AVI, 2544 KB) ! MSG-1 26 September 2003 09:00 UTC Channel 03 (NIR1.6)

  16. Contrails over Southern Germany Click on the icon tosee the animation(09:00 - 12:00 UTC,AVI, 2483 KB) ! MSG-1 26 September 2003 09:00 UTC Channel 04 (IR3.9)

  17. Contrails over Southern Germany Difference IR3.9 - IR10.8 Difference IR8.7 - IR10.8 26 September 2003, 08:00 UTC

  18. Contrails over Southern Germany Contrails MSG-1 26 September 2003 08:00 UTC Difference Image IR12.0 - IR10.8

  19. Contrails over Southern Germany Contrails MSG-1 26 September 2003 08:00 UTC Difference Image IR12.0 - IR10.8

  20. Contrails over Southern Germany Contrails MSG-1 26 September 2003 08:00 UTC RGB Composite R = HRV G = HRV B = IR12.0 - IR10.8

  21. Contrails over Southern Germany MSG-1 26 September 2003 09:30 UTC RGB Composite R = NIR1.6 G = VIS0.8 B = VIS0.6

  22. Contrails over Italy 13 June 2003

  23. Contrails over the Thyrrhenian Sea Contrails MSG-1 13 June 2003 12:00 UTC Channel 12 (HRV)

  24. Contrails over the Thyrrhenian Sea Contrails MSG-1 13 June 2003 12:00 UTC Difference Image IR12.0 - IR 10.8

  25. Contrails MSG-1, 13 June 2003, 12:00 UTC, RGB Composite HRV-HRV-IR 10.8i

  26. Contrails over Northern Italy 19 November 2003

  27. Shallow Fog and ContrailsComparison MSG-1 vs NOAA-16 Contrails Contrails Fog • Fog boundaries and contrails look very similar • MSG HRV has very similar characteristicto NOAA VIS channels

  28. ContrailsComparison MSG-1 vs NOAA-16 Contrails MSG IR10.8-IR12.0 NOAA AVHRR ch04-ch05 In some cases, the MSG IR channelsdo not resolve thin contrails

  29. Contrails over Germany & Benelux, North Sea and Baltic Sea 05 September 2004

  30. Contrails "Dust RGB" to Monitor Contrails MSG-1, 05 Sep 2004, 15:00 UTC, RGB IR12.0-IR10.8, IR10.8-IR8.7, IR10.8

  31. Contrails Contrails Contrails Click on the icon tosee the animation(09:00 - 13:00 UTC,AVI, 7925 KB) ! MSG-1, 05 Sep 2004, 09:00 UTC, Difference Image IR12.0 - IR10.8

  32. SUMMARY

  33. Detection of Contrails Large contrails can be detected in VIS, IR and WV channels,and also in differences like IR3.9-IR10.8 and IR8.7-IR10.8,but they appear most clearly in: • HRV: straight white lines (if no low-level clouds) or dark lines (shadow on lower clouds) • IR12.0 - IR10.8: dark lines • RGB HRV/HRV/IR12.0-IR10.8: straight yellow lines over blueish clear ground • RGB IR12.0-IR10.8 / IR10.8-IR8.7 / IR10.8: dark blue lines Contrails can be best observed from MSGin the early morning or late afternoon in the visible channels(low sun angle and shadows help)

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