Articles | Volume 10, issue 10
https://doi.org/10.5194/amt-10-3877-2017
https://doi.org/10.5194/amt-10-3877-2017
Research article
 | 
24 Oct 2017
Research article |  | 24 Oct 2017

Bias assessment of lower and middle tropospheric CO2 concentrations of GOSAT/TANSO-FTS TIR version 1 product

Naoko Saitoh, Shuhei Kimoto, Ryo Sugimura, Ryoichi Imasu, Kei Shiomi, Akihiko Kuze, Yosuke Niwa, Toshinobu Machida, Yousuke Sawa, and Hidekazu Matsueda

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AR by Naoko Saitoh on behalf of the Authors (12 Sep 2017)  Author's response   Manuscript 
ED: Publish subject to technical corrections (12 Sep 2017) by Helen Worden
AR by Naoko Saitoh on behalf of the Authors (13 Sep 2017)  Author's response   Manuscript 
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Short summary
This study evaluated biases in GOSAT/TANSO-FTS thermal infrared (TIR) V1 CO2 product on 736–287 hPa on the basis of comparisons with CONTRAIL CME CO2 data over airports. TIR V1 CO2 data had consistent negative biases of 1–1.5 %, with the largest negative biases at 541–398 hPa. Global comparisons between TIR CO2 data to which the bias-correction values were applied and CO2 data simulated by NICAM-TM confirmed the validity of the bias-correction values evaluated over airports in limited areas.