The Intercomparison of Top-of-Atmosphere Reflectivity Measured by MERIS and SCIAMACHY in the Spectral Range of 443–865 nm

Author

Kokhanovsky, A.A. ; Bramstedt, K. ; von Hoyningen-Huene, W. ; Burrows, J.P.

Author_Institution

Inst. of Environ. Phys., Bremen Univ.

Volume

4

Issue

2

fYear

2007

fDate

4/1/2007 12:00:00 AM

Firstpage

293

Lastpage

296

Abstract

This letter is aimed at better understanding of Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY) reflectance radiometric calibration errors using the Medium Resolution Imaging Spectrometer (MERIS) onboard ENVISAT. Earlier investigations showed that the SCIAMACHY calibration error can reach 20% in the visible bands, which prevents aerosol retrievals using the SCIAMACHY data. Recent improvements of the SCIAMACHY calibration are discussed. It is found that the differences in reflectances for the wavelengths 443, 560, 665, 754, and 865 nm between MERIS and improved Processor 6 SCIAMACHY data are close to the MERIS radiometric calibration error, which is below 4%

Keywords

atmospheric spectra; atmospheric techniques; calibration; radiometry; reflectivity; remote sensing; 443 to 865 nm; ENVISAT; MERIS; Medium Resolution Imaging Spectrometer; SCIAMACHY calibration; Scanning Imaging Absorption Spectrometer for Atmospheric Chartography; radiometric calibration; top-of-atmosphere reflectivity; Atmospheric measurements; Atmospheric waves; Calibration; Electromagnetic wave absorption; Extraterrestrial measurements; Hyperspectral imaging; Instruments; MERIS; Radiometry; Reflectivity; Calibration; Medium Resolution Imaging Spectrometer (MERIS); Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY);

fLanguage

English

Journal_Title

Geoscience and Remote Sensing Letters, IEEE

Publisher

ieee

ISSN

1545-598X

Type

jour

DOI

10.1109/LGRS.2007.894159

Filename

4156161