Measurement report: Quantifying the trade-off between station number and spatial layout in sparse GNSS networks for calibrating all-weather FY-4A precipitable water vapor

Ma, Yongchao; Chen, Zhengsheng; Liu, Tong; Yu, Zhibin; Wang, Zhihao

doi:10.5194/acp-26-12243-2026

Articles | Volume 26, issue 17

https://doi.org/10.5194/acp-26-12243-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-26-12243-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 26, issue 17

Measurement report

|

31 Aug 2026

Measurement report |

| 31 Aug 2026

Measurement report: Quantifying the trade-off between station number and spatial layout in sparse GNSS networks for calibrating all-weather FY-4A precipitable water vapor

Yongchao Ma, Zhengsheng Chen, Tong Liu, Zhibin Yu, and Zhihao Wang

Data sets

Calibration model for FY-4A PWV based on different GNSS station network Yongchao Ma https://doi.org/10.5281/zenodo.18751647

Short summary

Current satellite water vapor fusion and calibration methodologies predominantly rely on high-density ground-based station networks, rendering them unsuitable for sparsely monitored regions. This study pioneers the investigation of response relationships between station distribution patterns and satellite water vapor calibration, offering crucial insights for reference station selection in water vapor fusion within sparse monitoring areas.