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AMT | Articles | Volume 13, issue 5
Atmos. Meas. Tech., 13, 2635–2658, 2020
https://doi.org/10.5194/amt-13-2635-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue: SKYNET – the international network for aerosol, clouds,...

Atmos. Meas. Tech., 13, 2635–2658, 2020
https://doi.org/10.5194/amt-13-2635-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 20 May 2020

Research article | 20 May 2020

Development of on-site self-calibration and retrieval methods for sky-radiometer observations of precipitable water vapor

Masahiro Momoi et al.

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Cited articles

AERONET: https://aeronet.gsfc.nasa.gov/, last access: 14 May 2020. 
Bevis, M., Businger, S., Herring, T. A., Rocken, C., Anthes, R. A., and Ware, R. H.: GPS meteorology: Remote sensing of atmospheric water vapor using the Global Positioning System, J. Geophys. Res., 97, 15787–15801, 1992. 
Boi, P., Tonna, G., Dalu, G., Nakajima, T., Olivieri, B., Pompei, A., Campanelli, M., and Rao, R.: Calibration and data elaboration procedure for sky irradiance measurements, Appl. Optics, 38, 896–907, 1999. 
Bruegge, C. J., Conel, J. E., Green, R. O., Margolis, J. S., Holm, R. G., and Roon, G.: Water vapor column abundance retrievals during FIFE, J. Geophys. Res., 97, 18759–18768, 1992. 
Campanelli, M., Nakajima, T., and Olivieri, B.: Determination of the solar calibration constant for a sun-sky radiometer: proposal of an in-situ procedure, Appl. Optics, 43, 651–659, 2004. 
Publications Copernicus
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The water vapor channel of sun photometers, such as a sky radiometer, has been calibrated at limited observation sites (e.g., Mauna Loa) in previous studies, but our procedure has made on-site calibration possible by using sky radiances in addition to direct solar irradiance. The retrieved precipitable water vapor values correspond well to those derived from a global-navigation-satellite-system–global-positioning-system receiver, a microwave radiometer, and an AERONET sun–sky radiometer.
The water vapor channel of sun photometers, such as a sky radiometer, has been calibrated at...
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