MERIS BAER
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Spectral aerosol optical thickness is retrieved simultaneously with the determination of spectral ground reflectance by the Bremen AErosol Retrieval (Baer). The retrieval of AOT provides for 7 short-wave channels of the MERIS instrument the spectral behaviour of AOT, which is used for the determination of the spectral slope in terms of the Angstrom -parameter. Angstrom is obtained using AOT, retrieved from the 7 MERIS channels with wavelength 0.665 µm.
| Satellite | ENVISAT (ESA) |
| Instrument(s) | MERIS |
| Contact details | vountas[at]iup.physik.uni-bremen.de |
| Parameter(s) | Spectral AOT, Angstrom exponent |
| Aerosol algorithm | BEAR |
| Cloud screening |
ESA L2 MERIS cloud screening |
| Aerosol model | LACE-98 |
| Retrieval assumptions | surface reflectance from vegetation cover and model reflectance spectra, AOT from LUT |
| Retrieval limitations | no TIR channels for cloud screening on MERIS |
| Spatial, temporal coverage | 2005/2006, Germany / SAMUM campaign (Morocco) |
| Spatial, temporal resolution | 1km / 1150km swath / 35 days repeat cycle |
| Operations status | experimental |
| Validation status | |
| Quality control | |
| last algorithm version | |
| last validation | |
| Algorithm description | Product format description |
| Version explanation | Validation summary |
| Publications |
| Product data access |
| Image / quicklook data access |