Reading MERIS data - NV5 Geospatial - Help Forums

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Last Post 01 Aug 2008 11:12 AM by anon

Reading MERIS data

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anon

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01 Aug 2008 11:12 AM
The ENVI help file says that "ENVI applies gains and offsets to the geophysical (non-reflectance) products, so you do not need to apply them". When I open up an MERIS level 1 image (ESA N1 data) the the data are 16 bit numbers. In other words, I have to apply the scaling factors to get the geophysical floating point numbers. Does anyone know a way around this?

MariM

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Posts:2396
Veteran Member

27 Aug 2008 08:20 AM
Is your product a reflectance product? If not, then ENVI should apply the gains/offsets to the file so that it opens as floating point radiance. If it is not, then please contact technical support so they can report this problem to development.

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