Articles | Volume 13, issue 9
https://doi.org/10.5194/amt-13-4963-2020
https://doi.org/10.5194/amt-13-4963-2020
Research article
 | 
18 Sep 2020
Research article |  | 18 Sep 2020

Validating HY-2A CMR precipitable water vapor using ground-based and shipborne GNSS observations

Zhilu Wu, Yanxiong Liu, Yang Liu, Jungang Wang, Xiufeng He, Wenxue Xu, Maorong Ge, and Harald Schuh

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Latest update: 22 Nov 2024
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Short summary
The HY-2A calibration microwave radiometer (CMR) water vapor product is validated using ground-based GNSS observations along the coastline and shipborne GNSS observations over the Indian Ocean. The validation result shows that HY-2A CMR PWV agrees well with ground-based GNSS PWV, with 2.67 mm in rms within 100 km and an RMS of 1.57 mm with shipborne GNSS for the distance threshold of 100 km. Ground-based GNSS and shipborne GNSS agree with HY-2A CMR well.