VOLCANIC EMISSION FROM SATELLITE
CASE STUDY: 25 Nov 2005 - Karthala (Ash and So2)
SEVIRI IMAGES (6:12-15:42 UTC)Volcanic eruption affect the signal in both spectral range, visible, near_infrared and thermal infrared region.
SEVIRI allow us to follow the event with a time resolution of 15min.
Here the foulse colore images prodice with the SEVIRI channels in the two spectral regions: thermal infrared and visible/near_infrared.
ORAC RETRIEVAL using VIS and IR channelsTo study this volcanic eruption an extended verison of ORAC algorithm have been applied, using the visible and infrared channels. As previouse developed for desert dust retrieval (SEVIRI dust retrieval)
Other sites and informations on Kartahala eruption:
Eumesat web page, NASA site: MODIS image
Maintained by Elisa Carboni
|University of Oxford Physics Department.||Page last updated: @12:40 GMT 07-May-2012|