Ticket #3 (new QA note)

Opened 1 year ago

Spurious aerosol absorption

Reported by: bdas@sesda2.com Assigned to: bdas@sesda2.com
Priority: major Component: Level2
Keywords: OMAERUV Cc:
Project: OMI

Description

Retrievals of OMAERUV over the remote oceans in both hemispheres are affected by the wavelength dependent effect of clear water absorption. This effect yields spurious aerosol absorption and a slight over-estimation of the extinction optical depth. This artifact has been reduced by accounting for the spectral dependence of the ocean surface albedo at 354 and 388 nm. A similar effect (but smaller in magnitude) occurs over arid and semi-arid land areas. Spurious aerosol absorption retrievals may still occur when the actual surface spectral contrast differs significantly from the assumed climatological values.