Applies to:
DWR-G, DWR4
Explanation:
GPS-based buoys flag periods where satellite coverage is insufficient for reliable wave measurement. These flags indicate reduced data quality and should be respected during analysis. Short gaps may occur during extreme sea states or heavy wash-over events. Persistent GPS flagging may indicate antenna damage, obstruction, or incorrect installation. System messages provide context and should be reviewed whenever GPS-related anomalies appear. Additional notes Avoid interpolating flagged data without clear justification.