Contactos Contactos E-mail: rui.caldeira@uma.pt
 
 
Home Research Data services Operational Products Publications Clusters People Links
 
 
 
Financial support
http://www.fct.mctes.pt/
 
Participants
http://www.ciimar.up.pt/
http://ccm.uma.pt/
 
 
 
 
 
 
 
Meteosat 0 degree RGB Composites Natural Color
 

 
-14
-13
-12
-11
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
latest
 

 
 
 
The Natural Color RGB makes use of three solar channels: VIS0.6, VIS0.8 and NIR1.6. In this color scheme vegetation appears greenish because of its large reflectance in the VIS0.8 channel (the green beam) compared to the NIR1.6 (red beam) and VIS0.6 (blue beam) channels. Water clouds with small droplets have large reflectance at all three channels and hence appear whitish, while snow and ice clouds appears cyan because ice strongly absorbs in NIR1.6 (no red). Bare ground appears brown because of the larger reflectance in the NIR1.6 than at VIS0.6, and the ocean appears black because of the low reflectance in all three channels.



Design: Énio Freitas Webmaster: Rui Vieira © 2007-2013 UMa E-mail: rui.caldeira@uma.pt

Valid HTML 4.01 Transitional

CSS vĂ¡lido!