Supplement to: Wang, Jungang; Wu, Zhilu; Semmling, Maximilian; Zus, Florian; Gerland, Sebastian; Ramatschi, Markus; Ge, Maorong; Wickert, Jens; Schuh, Harald (2019): Retrieving Precipitable Water Vapor From Shipborne Multi‐GNSS Observations. Geophysical Research Letters, 46(9), 5000-5008, https://doi.org/10.1029/2019GL082136