• Spectroscopy and Spectral Analysis
  • Vol. 29, Issue 5, 1213 (2009)
ZHANG Yong1、2、*, LI Yuan1, RONG Zhi-guo1, HU Xiu-qing1、2, ZHANG Li-jun1, and LIU Jing-jing1
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
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    DOI: Cite this Article
    ZHANG Yong, LI Yuan, RONG Zhi-guo, HU Xiu-qing, ZHANG Li-jun, LIU Jing-jing. Field Measurement of Gobi Surface Emissivity Spectrum at Dunhuang Calibration Site of China[J]. Spectroscopy and Spectral Analysis, 2009, 29(5): 1213 Copy Citation Text show less

    Abstract

    Gobi surface emissivity spectrum of Dunhuang radiometric calibration site of China is one of the key factors to calibrate the thermal infrared remote sensors using land surface. Based on the iterative spectrally smooth temperature/emissivity separation (ISSTES)algorithm, Dunhuang Gobi surface emissivity spectrum was measured using BOMEM MR154 Fourier transform spectroradiometer and Infrared Golden Board. Emissivity spectrum data were obtained at different time and locations. These spectrum data were convolved with the channel response function of CE312 radiometer and compared with the channel emissivity measured by the same instrument. The results showed that the difference between these two kinds of channel emissivity was within 0.012 and exhibited a good consistency. With these measured emissivity spectra, all of the mainstream thermal infrared remote sensors can be calibrated using Dunhuang Gobi surface at radiometric calibration site of China.
    ZHANG Yong, LI Yuan, RONG Zhi-guo, HU Xiu-qing, ZHANG Li-jun, LIU Jing-jing. Field Measurement of Gobi Surface Emissivity Spectrum at Dunhuang Calibration Site of China[J]. Spectroscopy and Spectral Analysis, 2009, 29(5): 1213
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