Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 11, issue 9
Articles | Volume 11, issue 9
https://doi.org/10.5194/amt-11-5403-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-11-5403-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 11, issue 9
Research article
 | 
28 Sep 2018
Research article |  | 28 Sep 2018

Preflight calibration of the Chinese Environmental Trace Gases Monitoring Instrument (EMI)

Min Jie Zhao, Fu Qi Si, Hai Jin Zhou, Shi Mei Wang, Yu Jiang, and Wen Qing Liu

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Short summary
EMI is a nadir-viewing wide-field imaging spectrometer aiming to quantify the global distribution of tropospheric and stratospheric trace gases. The spectral range is 240–710 nm, with the spectral resolution 0.3–0.5 nm. The preflight accuracy of wavelength calibration is less than 0.05 nm; the accuracy of radiance calibration is less than 5 %. The obtained calibration key data are used for the L1b processor. In-orbit wavelength/radiometric calibration is used to monitor performance changes.
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