Articles | Volume 12, issue 12
Atmos. Meas. Tech., 12, 6721–6735, 2019
https://doi.org/10.5194/amt-12-6721-2019
Atmos. Meas. Tech., 12, 6721–6735, 2019
https://doi.org/10.5194/amt-12-6721-2019

Research article 19 Dec 2019

Research article | 19 Dec 2019

On the zero-level offset in the GOSAT TANSO-FTS O2 A band and the quality of solar-induced chlorophyll fluorescence (SIF): comparison of SIF between GOSAT and OCO-2

Haruki Oshio et al.

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Short summary
We investigate the radiance offset in the O2 A band of GOSAT spectrometer and quality of the offset-corrected solar-induced chlorophyll fluorescence (SIF). An analysis of temporal variation of the offset suggests that the radiometric sensitivity of the spectrometer changed after switching the optics path selector in January 2015. Comparisons at multiple spatial scales show good agreement between GOSAT SIF and OCO-2 SIF, which supports the consistency among the present satellite SIF data.