version 0.6, 30 june 2004 applications of meteosat second generation (msg) rgb images: part 04 rgb...
TRANSCRIPT
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Version 0.6, 30 June 2004
APPLICATIONS OFMETEOSAT SECOND GENERATION (MSG)RGB IMAGES: PART 04
RGB COMPOSITES WITH CHANNELS01-11 AND THEIR INTERPRETATION
Author:Author: Jochen Kerkmann (EUMETSAT)Jochen Kerkmann (EUMETSAT)[email protected]@eumetsat.de
Contributors:Contributors: D. Rosenfeld (HUJ)D. Rosenfeld (HUJ)
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Version 0.6, 30 June 2004
PART 4:
RED-GREEN-BLUE COLOUR COMPOSITES WITH
CHANNELS 01 - 11AND THEIR INTERPRETATION
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Version 0.6, 30 June 2004
Recommended Schemes forRGB Image Composites
RGB CompositeRGB Composite ApplicationsApplications TimeTime
RGB 03,02,01: Vegetation, Snow, Smoke, Dust, Fog DayRGB 02,04r,09: Clouds, Convection, Snow, Fog, Fires DayRGB 02,03,04r: Clouds, Convection, Snow, Dust, Fog, Fires Day
RGB 10-09,09-04,09: Clouds, Convection, Fog, Contrails, Fires NightRGB 10-09,09-07,09: Dust, Contrails Day & NightRGB 05-06,04-09,03-01: Severe Convection Day
1.2.3.
4.5.6.
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Version 0.6, 30 June 2004
R = Channel 03 (NIR1.6)G = Channel 02 (VIS0.8)B = Channel 01 (VIS0.6)
1. RGB 03,02,01("Day Natural Colours")
Applications:Applications:
Vegetation, Dust, Smoke, Fog, Snow
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Version 0.6, 30 June 2004
Recommended Range and Enhancement:Recommended Range and Enhancement:
Beam Channel Range Gamma Gamma2
Red 03 (NIR1.6) 0 …+100 % 1.0 1.0Green 02 (VIS0.8) 0 ... +100 % 1.0 1.0Blue 01 (VIS0.6) 0 ... +100 % 1.0 1.0
1. RGB 03,02,01("Day Natural Colours")
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Version 0.6, 30 June 2004
Ch.03NIR1.6
Ch.02VIS0.8
Ch.01VIS0.6
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Version 0.6, 30 June 2004
RGB 03,02,01 Example: Snow
NIR1.6
VIS0.8
VIS0.6
In RGB 03,02,01 images, snow appears in cyan colour !
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Version 0.6, 30 June 2004
MSG-1, 18 February 2003, 13:00 UTC
RGB 03,02,01 Example: Snow
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Version 0.6, 30 June 2004
RGB 03,02,01 Example: Vegetation
NIR1.6
VIS0.8
VIS0.6
In RGB 03,02,01 images, vegetation appears in greenish colours !
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Version 0.6, 30 June 2004
MSG-1, 23 June 2003, 15:00 UTC
RGB 03,02,01 Example: Vegetation
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Version 0.6, 30 June 2004
NIR1.6
VIS0.8
VIS0.6
RGB 03,02,01 Example: Desert
In RGB 03,02,01 images, deserts appear in reddish colours !
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Version 0.6, 30 June 2004
MSG-1, 31 October 2003, 11:30 UTC
RGB 03,02,01 Example: Desert
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Version 0.6, 30 June 2004
RGB 03,02,01 Example:Low-level Water Clouds (St, Sc)
NIR1.6
VIS0.8
VIS0.6
In RGB 03,02,01 images, low water clouds with small droplets appear in whitish-pinkish colours !
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Version 0.6, 30 June 2004
MSG-1, 18 February 2003, 13:00 UTC
RGB 03,02,01 Example:Low-level Water Clouds (St, Sc)
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Version 0.6, 30 June 2004
R = Channel 02 (VIS0.8)G = Channel 04r (IR3.9, solar component)B = Channel 09 (IR10.8)
2. RGB 02,04r,09("Day Microphysical")
Applications:Applications:
Cloud Analysis, Convection, Fog, Snow, Fires
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Version 0.6, 30 June 2004
2. RGB 02,04r,09("Day Microphysical")
Recommended Range and Enhancement (Recommended Range and Enhancement (SummerSummer):):
Beam Channel Range GammaGamma2
Red 02 (VIS0.8) 0 …+100 % 1.01.0Green 04r (IR3.9r) 0 ... +60 % 2.5
1.0Blue 09 (IR10.8) +203 ... +323 K 1.01.0
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Version 0.6, 30 June 2004
2. RGB 02,04r,09("Day Microphysical")
Recommended Range and Enhancement (Recommended Range and Enhancement (WinterWinter):):
Beam Channel Range GammaGamma2
Red 02 (VIS0.8) 0 …+100 % 1.01.0Green 04r (IR3.9r) 0 ... +25 % 1.5
1.0Blue 09 (IR10.8) +203 ... +323 K 1.01.0
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Version 0.6, 30 June 2004
Ch.02VIS0.8
Ch.04rIR3.9r
Ch.09IR10.8
MSG-1, 8 September 2003, 12:00 UTCRGB Composite 02,04r,09
"winter" enhancement (see previous slide)
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Version 0.6, 30 June 2004
RGB 02,04r,09 Example: Severe Convection
VIS0.8
IR3.9r
IR10.8
In RGB 02,04r,09 images, cold Cb clouds with small ice particles appear in light orange colours !
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Version 0.6, 30 June 2004
RGB 02,04r,09 Example: Severe Convection
MSG-1, 20 May 2003, 13:30 UTC ("winter" enhancement)
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Version 0.6, 30 June 2004
RGB 02,04r,09 Example: Ship Trails
VIS0.8
IR3.9r
IR10.8
In RGB 02,04r,09 images, ship trails (small droplets) appear in whitish - light greenish colours !
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Version 0.6, 30 June 2004
RGB 02,04r,09 Example: Ship Trails
MSG-1, 7 September 2003, 11:45 UTC ("winter" enhancement)
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Version 0.6, 30 June 2004
Red: Cloud depth and amount of cloud water and ice,provided by the visible reflectance at 0.8 m.
Green:Cloud particle size and phase, approximated by the3.9 m solar reflectance component.
Blue: Temperature, provided by the 10.8 m channel.
RGB 02,04r,09:Physical Interpretation for Clouds
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Version 0.6, 30 June 2004
RGB 02,04r,09: Interpretation of Colours
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Version 0.6, 30 June 2004
Low red: Dark and thin clouds
RGB 02,04r,09: Interpretation of Colours
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Version 0.6, 30 June 2004
RGB 02,04r,09: Interpretation of Colours
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Version 0.6, 30 June 2004
R = Channel 02 (VIS0.8)G = Channel 03 (NIR1.6)B = Channel 04r (IR3.9r, solar component)
3. RGB 02,03,04r("Day Solar")
Applications:Applications:
Cloud Analysis, Convection, Fog, Snow, Fires
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Version 0.6, 30 June 2004
3. RGB 02,03,04r("Day Solar")
Recommended Range and Enhancement (Recommended Range and Enhancement (SummerSummer):):
Beam Channel Range GammaGamma2
Red 02 (VIS0.8) 0 …+100 % 1.71.0
Green 03 (NIR1.6) 0 … +70 % 1.71.0
Blue 04r (IR3.9r) 0 … +60 % 2.51.0
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Version 0.6, 30 June 2004
3. RGB 02,03,04r("Day Solar")
Recommended Range and Enhancement (Recommended Range and Enhancement (WinterWinter):):
Beam Channel Range GammaGamma2
Red 02 (VIS0.8) 0 …+100 % 1.71.0
Green 03 (NIR1.6) 0 ... +70 % 1.71.0
Blue 04r (IR3.9r) 0 … +30 % 1.71.0
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Version 0.6, 30 June 2004
Ch.02VIS0.8
Ch.03NIR1.6
Ch.04rIR3.9r
MSG-1, 24 February 2003, 11:00 UTCRGB Composite 02,03,04r
"winter" enhancement (see previous slide)
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Version 0.6, 30 June 2004
RGB 02,03,04r Example: Snow
VIS0.8
NIR1.6
IR3.9r
In RGB 02,03,04r images, snow appears in bright reddish colours !
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Version 0.6, 30 June 2004
RGB 02,03,04r Example: Snow
MSG-1, 26 January 2004, 10:00 UTC ("winter" enhancement)
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Version 0.6, 30 June 2004
R = Difference IR12.0 - IR10.8G = Difference IR10.8 - IR3.9*B = Channel IR10.8
4. RGB 10-09,09-04,09("Night Microphysical")
Applications:Applications:
Cloud Analysis, Fog, Contrails, Fires
*Note: CO2-corrected brightness temperature of channel 04 (IR3.9)
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Version 0.6, 30 June 2004
4. RGB 10-09,09-04,09("Night Microphysical")
Recommended Range and Enhancement (Recommended Range and Enhancement (Low Clouds, FogLow Clouds, Fog):):
Beam Channel Range Gamma Gamma2
Red IR12.0 - IR10.8-4 … +2 1.0 1.0Green IR10.8 - IR3.9* 0 … +6 2.0 1.0Blue IR10.8 +243 … +293 1.0 1.0
*Note: CO2-corrected brightness temperature of channel 04 (IR3.9)
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Version 0.6, 30 June 2004
4. RGB 10-09,09-04,09("Night Microphysical")
Recommended Range and Enhancement (Recommended Range and Enhancement (High Clouds, FiresHigh Clouds, Fires):):
Beam Channel Range Gamma Gamma2
Red IR12.0 - IR10.8-4 … 0 1.0 3.0Green IR10.8 - IR3.9* -15 … +6 2.5 1.0Blue IR10.8 +223 … +293 1.0 1.0
*Note: CO2-corrected brightness temperature of channel 04 (IR3.9)
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Version 0.6, 30 June 2004
Ch.10-Ch.09
Ch.09-Ch.04
Ch.09
MSG-1, 9 November 2003, 02:45 UTCRGB Composite 10-09,09-04,09
"low clouds" enhancement (see previous slide)
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Version 0.6, 30 June 2004
RGB 10-09,09-04,09 Example: Fog
10 - 09
09 - 04
09
In RGB 10-09,09-04,09 images, night-time fog appears in light greenish colours !
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Version 0.6, 30 June 2004
RGB 10-09,09-04,09 Example: Fog
MSG-1, 26 January 2004, 01:00 UTC ("low clouds" enhancement)
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Version 0.6, 30 June 2004
RGB 10-09,09-04,09 Example: Cb
10 - 09
09 - 04
09
In RGB 10-09,09-04,09 images, thick Cb clouds at night appear in sprenkled orange-red colour (noise in channel 04)!
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Version 0.6, 30 June 2004
RGB 10-09,09-04,09 Example: Cb
MSG-1, 23 April 2003, 19:00 UTC ("high clouds" enhancement)
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Version 0.6, 30 June 2004
RGB 10-09,09-04,09 Example: Cirrus
10 - 09
09 - 04
09
In RGB 10-09,09-04,09 images, thin Cirrus appears in dark bluish colours !
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Version 0.6, 30 June 2004
RGB 10-09,09-04,09 Example: Cirrus
MSG-1, 3 August 2003, 02:00 UTC ("high clouds" enhancement)
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Version 0.6, 30 June 2004
R = Difference IR12.0 - IR10.8G = Difference IR10.8 - IR8.7B = Channel IR10.8
5. RGB 10-09,09-07,09("Dust")
Applications:Applications:
Dust (day and night), Contrails
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Version 0.6, 30 June 2004
5. RGB 10-09,09-07,09("Dust")
Recommended Range and Enhancement:Recommended Range and Enhancement:
Beam Channel Range Gamma Gamma2
Red IR12.0 - IR10.8-4 … +2 1.0 1.0Green IR10.8 - IR8.7 0 … +15 2.5 1.0Blue IR10.8 +261 … +289 1.0 1.0
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Version 0.6, 30 June 2004
Ch.10-Ch.09
Ch.09-Ch.07
Ch.09
MSG-1, 3 March 2004, 01:00 UTCRGB Composite 10-09,09-07,09
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Version 0.6, 30 June 2004
RGB 10-09,09-04,09 Example: Dust
10 - 09
09 - 07
09
In RGB 10-09,09-07,09 images, dust appears in magenta colours !
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Version 0.6, 30 June 2004
RGB 10-09,09-07,09 Example: Dust (day)
MSG-1, 3 March 2004, 10:00 UTC
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Version 0.6, 30 June 2004
RGB 10-09,09-07,09 Example: Dust (day)
MSG-1, 25 June 2003, 10:00 UTC
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Version 0.6, 30 June 2004
R = Difference WV6.2 - WV7.3G = Difference IR3.9* - IR10.8B = Difference NIR1.6 - VIS0.6
6. RGB 05-06,04-09,03-01("Convective Storms")
Applications:Applications:
Severe Storms
*Note: CO2-corrected brightness temperature of channel 04 (IR3.9)
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Version 0.6, 30 June 2004
6. RGB 05-06,04-09,03-01("Convective Storms")
Recommended Range and Enhancement:Recommended Range and Enhancement:
Beam Channel Range Gamma Gamma2
Red WV6.2 - WV7.3 -30 … 0 1.0 1.0Green IR3.9* - IR10.8 0 … +50 or +55 0.5 1.0Blue NIR1.6 - VIS0.6 -70 … +20 1.0 1.0
*Note: CO2-corrected brightness temperature of channel 04 (IR3.9)
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Version 0.6, 30 June 2004
Ch.05-Ch.06
Ch.04-Ch.09
Ch.03-Ch.01
MSG-1, 8 September 2003, 12:00 UTCRGB Composite 05-06,04-09,03-01
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Version 0.6, 30 June 2004
RGB 05-06,04-09,03-01 Example:Severe Convection
05 - 06
04 - 09
03 - 01
In RGB 05-06,04-09,03-01 images, cold Cb tops with small ice particles appear in yellowish colours (Cbs with large ice particles
appear in reddish colours) !
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Version 0.6, 30 June 2004
RGB 05-06,04-09,03-01 Example:Severe Convection
MSG-1, 20 May 2003, 13:30 UTC
RGB 02,04r,09 RGB 05-06,04-09,03-01 (for comparison) better identification of young, severe storms
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Version 0.6, 30 June 2004
RGB 05-06,04-09,03-01 Example:Severe Convection
MSG-1, 13 June 2003, 12:00 UTC
RGB 02,04r,09 RGB 05-06,04-09,03-01 (for comparison) better identification of young, severe storms
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Version 0.6, 30 June 2004
RGB 05-06,04-09,03-01 Example:Severe Convection
MSG-1, 3 February 2004, 11:30 UTC
RGB 02,04r,09 RGB 05-06,04-09,03-01 (for comparison) better identification of young, severe storms