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APPLICATIONS OF METEOSAT SECOND GENERATION (MSG). RGB IMAGES: PART 05 RGB COMPOSITES WITH CHANNEL 12 AND THEIR INTERPRETATION Author:Jochen Kerkmann (EUMETSAT) [email protected] PART 5: RED-GREEN-BLUE COLOUR COMPOSITES WITH CHANNEL 12 (HRV) AND THEIR INTERPRETATION.

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APPLICATIONS OF METEOSAT SECOND GENERATION (MSG)

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Applications of meteosat second generation msg

APPLICATIONS OF

METEOSAT SECOND GENERATION (MSG)

RGB IMAGES: PART 05

RGB COMPOSITES WITH CHANNEL 12 AND THEIR INTERPRETATION

Author:Jochen Kerkmann (EUMETSAT)

[email protected]


Applications of meteosat second generation msg

PART 5:

RED-GREEN-BLUE COLOUR COMPOSITES WITH CHANNEL 12 (HRV)AND THEIR INTERPRETATION


Applications of meteosat second generation msg

RGBs with the HRV Channel: Introduction

  • In order to preserve the high resolution of the HRV channel, it should be assigned to 2 colours

  • The HRV has a three times higher resolution than the other channels, i.e. a zoom factor of 3 is needed for the IR channels


Applications of meteosat second generation msg

Recommended Schemes for RGB Image Composites with Channel 12 (HRV)

RGB CompositeApplicationsTime

RGB 12,12,09i:Clouds, ConvectionDay

RGB 03,12,12:Snow, FogDay

RGB 12,12,04-09:Severe StormsDay

1.

2.

3.


Applications of meteosat second generation msg

1. RGB 12,12,09i

("HRV Clouds")

(similar to traditional NOAA AVHRR 1,2,4)

R = Channel 12 (HRV)

G = Channel 12 (HRV)

B = Channel 09i (IR10.8i)

Applications:

Clouds, Convection


Applications of meteosat second generation msg

1. RGB 12,12,09i

("HRV Clouds")

Recommended Range and Enhancement:

BeamChannelRangeGammaGamma2

Red12 (HRV)0 …+100 %1.71.0

Green12 (HRV)0 ... +100 %1.71.0

Blue09i (IR10.8i)+203 ... +323 K1.01.0


Applications of meteosat second generation msg

Ch.12

HRV

Ch.12

HRV

Ch.09i

IR10.8i


Applications of meteosat second generation msg

Colour Interpretation of RGB 12,12,09i Images


Applications of meteosat second generation msg

Comparison HRV vs RGB 12,12,09i

MSG-1, 13 June 2003, 14:00 UTC

The RGB 12,12,09i helps to detect thin Ci clouds and todistinguish between thick Cb clouds and Ci anvils


Applications of meteosat second generation msg

2. RGB 03,12,12

("HRV Fog")

R = Channel 03 (NIR1.6)

G = Channel 12 (HRV)

B = Channel 12 (HRV)

Applications:

Snow, Fog


Applications of meteosat second generation msg

2. RGB 03,12,12

("HRV Fog")

Recommended Range and Enhancement:

BeamChannelRangeGammaGamma2

Red03 (NIR1.6)0 …+70 %1.71.0

Green12 (HRV)0 ... +100 %1.71.0

Blue12 (HRV)0 ... +100 %1.71.0


Applications of meteosat second generation msg

Ch.03

NIR1.6

Ch.12

HRV

Ch.12

HRV


Applications of meteosat second generation msg

Colour Interpretation of RGB 03,12,12 Images


Applications of meteosat second generation msg

Comparison HRV vs RGB 03,12,12

MSG-1, 24 February 2003, 11:00 UTC

The RGB 03,12,12 helps to distinguish between fog and snow


Applications of meteosat second generation msg

3. RGB 12,12, 09-04

("HRV Severe Storms")

R = Channel 12 (HRV)

G = Channel 12 (HRV)

B = BTD 09-04 (IR10.8-IR3.9)

Applications:

Severe Storms


Applications of meteosat second generation msg

3. RGB 12,12,09-04

("HRV Severe Storms")

Recommended Range and Enhancement:

BeamChannelRangeGammaGamma2

Red12 (HRV)70 …+100 %1.71.0

Green12 (HRV)70 ... +100 %1.71.0

BlueIR10.8-IR3.9-60 ... -40 K2.01.0


Applications of meteosat second generation msg

Ch.12

HRV

Ch.12

HRV

Ch.

09-04


Applications of meteosat second generation msg

Colour Interpretation of RGB 12,12,09-04 Images


Applications of meteosat second generation msg

Comparison HRV vs RGB 12,12,09-04

MSG-1, 13 June 2003, 14:00 UTC

The RGB 12,12,09-04 helps to detect the most vigorous storms(with the strongest updrafts)


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