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Shoji, Y., J. Miura, S. Tsubaki, Y. Higashi, S. Hibino, A. Kojima, T. Nakamura and K. Shutta, 2023: A Study on Analysis Setting Optimization of Ship-Based GNSS Measurements for Maritime Precipitable Water Vapor Monitoring. J. Meteor. Soc. Japan, 101.
https://doi.org/10.2151/jmsj.2023-020
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Plain Language Summary: We studied the optimum analysis settings for precipitable water vapor (PWV) retrieval at sea using a ship-based Global Navigation Satellite System (GNSS). Based on the results of comparison of GNSS-derived PWV with the Meso-scale Analysis of the Japan Meteorological Agency (JMA), a new setting combination was selected. The use of the new setting combination improved the agreement between the GNSS-derived PWV and other observations.

Highlights:

• The use of the new setting combination improved the agreement between the GNSS-derived PWV and other observations.
• It is found that the biases in the GNSS-derived PWV are closely related to the biases in the vertical coordinate solutions in the GNSS positioning.
• An operational system for real-time analysis of maritime PWV using GNSS receivers installed on two JMA research vessels is presented in the Appendix.