Liang-xiao CHENG, Jin-hua TAO, Hai-jin ZHOU, Chao YU, Meng FAN, Ya-peng WANG, Zhi-bao WANG, Liang-fu CHEN. Evaluations of Environmental Trace Gases Monitoring Instrument (EMI) Level 1 Data[J]. Spectroscopy and Spectral Analysis, 2021, 41(12): 3881
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 12, 3881 (2021)
Fig. 1. Sketch map of EMI VIS1 band observation
Fig. 2. Slit function of different sub-windows in UV and VIS bands as a function of row
Fig. 3. Irradiance wavelength shift of different sub-windows in the spectral range of 312~356 nm as a function of row
Fig. 4. Radiance wavelength shift of 12 consecutive orbits measured by UV2 and VIS1 band on 4 August, 2018
Fig. 5. The irradiance spectra measured by EMI, OMI and TROPOMI on 12 July, 2018. The black line is a reference solar irradiance from and convolved with the EMI FWHM
Fig. 6. Mean radiance of nadir pixelin the clean Pacific region measured on 4 August, 2018
Fig. 7. Irradiance row dependence relative to nadir measured on 12 July, 2018
Fig. 8. (a), (c) The normalized measured radiance and the corresponding simulated radiance as a function of row; (b), (d) The ratio of the measured radiance and the simulated radiance and the radiance row dependency
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Table 1. Sub-window settings for irradiance wavelength calibration
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