Tide gauge at Donggang
Time (UTC)	rad(m)
2026-06-29 23:00:00	1.15
2026-06-30 00:00:00	1.16
2026-06-30 01:00:00	1.08
2026-06-30 02:00:00	0.95
2026-06-30 03:00:00	0.75
2026-06-30 04:00:00	0.56