Global evaluation of the precipitable-water-vapor product from MERSI-II (Medium Resolution Spectral Imager) on board the Fengyun-3D satellite

Zhang​​​​​​​, Wengang; Wang, Ling; Yu, Yang; Xu, Guirong; Hu, Xiuqing; Fu, Zhikang; Cui, Chunguang

doi:https://doi.org/10.5194/amt-14-7821-2021

Articles | Volume 14, issue 12

https://doi.org/10.5194/amt-14-7821-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Analysis of atmospheric water vapour observations and their...

https://doi.org/10.5194/amt-14-7821-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 14, issue 12

Research article

|

16 Dec 2021

Research article |

| 16 Dec 2021

Global evaluation of the precipitable-water-vapor product from MERSI-II (Medium Resolution Spectral Imager) on board the Fengyun-3D satellite

Wengang Zhang, Ling Wang, Yang Yu, Guirong Xu, Xiuqing Hu, Zhikang Fu, and Chunguang Cui

Data sets

data-wengang20211109 Wengang Zhang https://doi.org/10.5281/zenodo.5656797

MERSI-II PWV product National Satellite Meteorological Center (NSMC) http://satellite.nsmc.org.cn/PortalSite/Data/Satellite.aspx

Global AERONET data National Aeronautics and Space Administration (NASA) https://aeronet.gsfc.nasa.gov/data_push/V3/AOD/AOD_Level20_All_Points_V3.tar.gz

Short summary

Global precipitable water vapor (PWV) derived from MERSI-II (Medium Resolution Spectral Imager) is compared with PWV from the Integrated Global Radiosonde Archive (IGRA). Our results show a good agreement between PWV from MERSI-II and IGRA and that MERSI-II PWV is slightly underestimated on the whole, especially in summer. The bias between MERSI-II and IGRA grows with a larger spatial distance between the footprint of the satellite and the IGRA station, as well as increasing PWV.