QUALITY ASSESSMENT OF SEA LEVEL DATA by the UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER JOINT ARCHIVE FOR SEA LEVEL updated: 03 Jan 2020 Station : Rorvik Latitude: 64 52.0N Country : Norway Longitude: 11 15.0E JASL # : 803A Time Meridian: 015E (GMT + 1 hr) GLOSS # : 234 Originator #: NODC #: 16014101 Contributor : Norwegian Hydrographic Services (NHS) Oceanographic Group PO Box 60 N-4011 Stavanger NORWAY Originator : same Original Data: digital (1988-) Instrmnt Type: 19 08 1969: series began, instrument unconfirmed 20 06 1988: Scan-Matic gauge 24 07 2001: Sutron gauge Digitzd Intvl: 10 minute (1988-) Present Data : Hourly, daily, and monthly values obtained by: Hourly : Hanning 3-pt filter centered on the hour Daily : 119-point convolution filter (Bloomfield, 1976) centered on noon applied to the hourly data with respective periods of the 95, 50, and 5% amplitude points at 124.0, 60.2, and 40.2 hours Monthly: Simple average of all daily values; calculated if 7 or fewer days are missing Span of data : 18 Aug 1969 - 31 Dec 2018 Gaps > 1 mon : 01 Jan 1988 - 20 Jun 1988 Time Refernce: GMT (hours 00-23) Space-filler Flag :-9999 Units : millimeters Missing Data Flag : 9999 Existing : Yes Operational : Yes Sat. Trans. : unconfirmed Distribution : 1969-2018 Refernce Levl: Near-realtime data relative to Chart Datum. Historic data are relative to Tide Gauge Zero (TGZ) TGZM: H20 N61 Auxiliary BM : H20 N60 3.100m above TGBM Normalnull 1954: 5.782 m below TGBM TGZ: 7.077m below TGBM TGZ = Chart Datum - 238 mm Comment : The tide gauge is located on Nykaia in Fiskerihamna in downtown Rorvik. The 2020-01 JASL update replaces 2007-2014, after NHS performed systematic error corrections. Use of the data is licensed through Creative Commons Attribution 4.0 international (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/deed.en CI MISSING REPLACED GAPS QUESTIONABLE YEAR (%) DATA OR BAD DATA FLUCTUATIONS ---- --- -------------------- --------------- -------------------- 1969 36 238-240,308-310 none none 1970 97 27-34,256-260 (23)006-(22)007 none 1971 99 163-165 (23)058-(22)059 none 1972 98 104-109,334-336, (23)128-(22)129 none 347-349 (23)242-(22)243 (23)330-(22)331 (23)339-(22)340 1973 100 none none none 1974 97 80-91 none none 1975 100 none none none 1976 98 81-84,201-204 none none 1977 92 113-115,254-280 none none 1978 95 44-46,76-79,87-90, none none 211-213,348-350, 357-360,362-365 1979 97 1-9,64-66 none none 1980 98 132-134,153-155, (23)328-(22)329 none 181-183 (23)330-(22)331 1981 96 4-15,34-37 none none 1982 99 7-11 none none 1983 98 191-194,207-210 none none 1984 99 218-221 none none 1985 96 38-42,193-196,292- none none 294,329-334 1986 91 9-11,79-92,113-115, (23)308-(22)309 none 258-261,273-279,345- (23)355-(22)356 350,362-365 1987 88 1-20,37-45,52-54,61- (23)259-(22)260 none 63,72-75,97-100,118- 120,149-152,365 1988 41 1-172,183-184,201- none none 229,240-244,258-263, 258-263,314-320 1989 99 289-291,348-349 (16)318-(07)319 none 1990 100 none (02)050-(11)050 none 1991 100 none none none 1992 100 none none none 1993 99 229-232 none none 1994 95 234-250,283-286 none none 1995 97 59-69 none none 1996 98 56-58,271-274 none none 1997 100 none none none 1998 99 57-62 none none 1999 100 none none none 2000 99 165-167 none none 2001 99 291-296 none none 2002 100 none none none 2003 100 none none none 2004 100 none none none 2005 100 none none none 2006 100 none none none 2007 94 299-310,355-365 none none 2008 100 none none none 2009 100 none none none 2010 94 162-165,173-181, none none 355-365 2011 100 none none none 2012 100 none none none 2013 100 none none none 2014 100 none none none 2015 100 none none none 2016 100 none none none 2017 100 none none none 2018 100 none none none