Scientific Data

Table 2 The time format, units and datums for each of the historic tide gauge sites.

From: Digitising historical sea level records in the Thames Estuary, UK

YEARS	Type 1: 1911–1920	Type 2: 1921–21 Aug 1934	Type 3: 22 Aug 1934-Jul 1938	Type 4: Aug 1938–1953	Type 5: 1954–1973	Type 6: 1974–1995
1. Walton-on-Naze					Ft.	Metres
					ODN	CD
					24-hour	24-hour
2. Margate					Ft.	Metres
					ODN	CD
					24-hour	24-hour
3. Shivering Sand						Metres
						CD
						24-hour
4. Southend	Ft. and In.	Ft. and In.	Ft. and In.	Ft. and In.	Ft.	Metres
	THW	THW	ODN	ODN	ODN	CD
	A.M. and P.M.	A.M. and P.M.	24-hour	24-hour	24-hour	24-hour
5. Coryton					Ft.	Metres
					ODN	CD
					24-hour	24-hour
6. Tilbury	Ft. and In.	Ft. and In.	Ft. and In.	Ft. and In.	Ft.	Metres
	THW	THW	ODN	ODN	ODN	CD
	A.M. and P.M.	A.M. and P.M.	24-hour	24-hour	24-hour	24-hour
7. Gallions Pier (Albert Dock)	Ft. and In.	Ft. and In.				Metres
	THW	THW				CD
	A.M. and P.M.	A.M. and P.M.				24-hour
8. Silvertown (North Woolwich)				Ft. and In.	Ft.	Metres
				ODN	ODN	CD
				24-hour	24-hour	24-hour
9. Cherry Garden Pier	Ft. and In.	Ft. and In.
	THW	THW
	A.M. and P.M.	A.M. and P.M.
10. Tower Pier		Ft. and In.	Ft. and In.	Ft. and In.	Ft.	Metres
		THW	ODN	ODN	ODN	CD
		A.M. and P.M.	24-hour	24-hour	24-hour	24-hour
11. Old Swan Pier	Ft. and In.	Ft. and In.
	THW	THW
	A.M. and P.M.	A.M. and P.M.
12. All Hallows Pier	Ft. and In.
	THW
	A.M. and P.M.
13. Temple Pier	Ft. and In.
	THW
	A.M. and P.M.
14. Strand-on-Green	Ft. and In.	Ft. and In.
	THW	THW
	A.M. and P.M.	A.M. and P.M.
15. Richmond	Ft. and In.	Ft. and In.	Ft. and In.	Ft. and In.	Ft.	Metres
	THW	THW	ODN	ODN	ODN	ODN
	A.M. and P.M.	A.M. and P.M.	24-hour	24-hour	24-hour	24-hour

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