Determination of zenith hydrostatic delay and its impact on GNSS-derived integrated water vapor

Wang, Xiaoming; Zhang, Kefei; Wu, Suqin; He, Changyong; Cheng, Yingyan; Li, Xingxing

doi:https://doi.org/10.5194/amt-10-2807-2017

Articles | Volume 10, issue 8

https://doi.org/10.5194/amt-10-2807-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

Advanced Global Navigation Satellite Systems tropospheric...

https://doi.org/10.5194/amt-10-2807-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 10, issue 8

Research article

|

07 Aug 2017

Research article |

| 07 Aug 2017

Determination of zenith hydrostatic delay and its impact on GNSS-derived integrated water vapor

Xiaoming Wang, Kefei Zhang, Suqin Wu, Changyong He, Yingyan Cheng, and Xingxing Li

Supplement

https://doi.org/10.5194/amt-10-2807-2017-supplement

Data sets

GPS-derived precipitable water vapor data set Wang, Xiaoming; Zhang, Kefei; Wu, Suqin; Fan, Shijie; Cheng, Yingyan https://doi.org/10.1002/2015JD024181

Short summary

Accurate knowledge of water vapor (WV) is vital for global climate studies. The Global Navigation Satellite System (GNSS) has been used as an emerging tool for sensing integrated WV (IWV). In the determination of PWV, surface pressure is required. However, few GNSS stations were installed with meteorological sensors back in the 1990s. Our research indicates that the ERA-Interim-derived pressure has the potential to be used to obtain high-accuracy IWV on a global scale for climate studies.