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In the Global Sea Level Observing System (GLOSS) Implementation Plans of 1997 and 2012 (IOC Technical Series No. 50), a set of water level stations around the world have been identified for the detection and monitoring of long term sea level trends and accelerations. NOAA/CO-OPS operates and maintains 45 of these stations and presents routinely-updated analyses of the long-term trends and variability.


Africa, India
India
Australia, Pacific
Australia
New Zealand
America
Mexico
Panama

In addition the sea level trend analysis has been extended to 240 non-CO-OPS global stations, including over 130 stations in the GLOSS Core Network (GCN). The product suite includes coverage of 65 countries worldwide to capture the variability in local relative sea level change and contribute to global sea level rise estimates. The data for these stations were obtained from the Permanent Service for Mean Sea Level (PSMSL), a data bank for sea level information from the global network of tide gauges. The data sets analyzed are relative to the Revised Local Reference (RLR) datums as established by PSMSL (approximately 7 meters below mean sea level). These products support the Global Sea Level Observing System (GLOSS), an international program under both the World Meteorological Organization (WMO) and Intergovernmental Oceanographic Commission (IOC). They also support the NOAA Climate Program Office's mission to produce essential climate variability and change products and parameters.


CO-OPS Data
9461380 Adak Island, Alaska
9414750 Alameda, California
9455920 Anchorage, Alaska
8575512 Annapolis, Maryland
8728690 Apalachicola, Florida
1630000 Apra Harbor, Guam
9439040 Astoria, Oregon
8534720 Atlantic City, New Jersey
8574680 Baltimore, Maryland
8413320 Bar Harbor, Maine
8656483 Beaufort, North Carolina
2695540 Bermuda, Atlantic Ocean
8443970 Boston, Massachusetts
8467150 Bridgeport, Connecticut
8571892 Cambridge, Maryland
8536110 Cape May, New Jersey
8727520 Cedar Key, Florida
8665530 Charleston, South Carolina
9432780 Charleston, Oregon
9751639 Charlotte Amalie, Virgin Islands
9449424 Cherry Point, Washington
8638863 Chesapeake Bay Bridge Tunnel, Virginia
8573927 Chesapeake City, Maryland
1840000 Chuuk
8726724 Clearwater Beach, Florida
8635150 Colonial Beach, Virginia
9454050 Cordova, Alaska
9419750 Crescent City, California
8735180 Dauphin Island, Alabama
8721120 Daytona Beach Shores, Florida
8651370 Duck, North Carolina
8410140 Eastport, Maine
8764311 Eugene Island, Louisiana
8720030 Fernandina Beach, Florida
8725520 Fort Myers, Florida
8670870 Fort Pulaski, Georgia
8772440 Freeport, Texas
9449880 Friday Harbor, Washington
8771450 Galveston Pier 21, Texas
8771510 Galveston Pleasure Pier, Texas
9437540 Garibaldi, Oregon
8637624 Gloucester Point, Virginia
8761724 Grand Isle, Louisiana
9731158 Guantanamo Bay, Cuba
1617760 Hilo, Hawaii
1612340 Honolulu, Hawaii
1619000 Johnston Atoll
9452210 Juneau, Alaska
1615680 Kahului, Hawaii
9450460 Ketchikan, Alaska
8724580 Key West, Florida
8516945 Kings Point, New York
8632200 Kiptopeke, Virginia
9457292 Kodiak Island, Alaska
1820000 Kwajalein
9410230 La Jolla, California
8557380 Lewes, Delaware
8635750 Lewisetta, Virginia
9751401 Lime Tree Bay, Virgin Islands
9410660 Los Angeles, California
9759110 Magueyes Island, Puerto Rico
8720218 Mayport, Florida
8723170 Miami Beach, Florida
1619910 Midway Atoll
1612480 Mokuoloe, Hawaii
8510560 Montauk, New York
9413450 Monterey, California
8449130 Nantucket Island, Massachusetts
8725110 Naples, Florida
1611400 Nawiliwili, Hawaii
9443090 Neah Bay, Washington
8461490 New London, Connecticut
8452660 Newport, Rhode Island
9410580 Newport Beach, California
9455760 Nikiski, Alaska
9418767 North Spit, California
8570283 Ocean City, Maryland
8652587 Oregon Inlet Marina, North Carolina
8779750 Padre Island, Texas
1770000 Pago Pago, American Samoa
8729108 Panama City, Florida
8729840 Pensacola, Florida
8545240 Philadelphia, Pennsylvania
9415020 Point Reyes, California
9444090 Port Angeles, Washington
9415144 Port Chicago, California
8779770 Port Isabel, Texas
8514560 Port Jefferson, New York
8778490 Port Mansfield, Texas
9431647 Port Orford, Oregon
9412110 Port San Luis, California
9444900 Port Townsend, Washington
8418150 Portland, Maine
8638660 Portsmouth, Virginia
8454000 Providence, Rhode Island
9414523 Redwood City, California
8551910 Reedy Point, Delaware
9411270 Rincon Island, California
8774770 Rockport, Texas
8770570 Sabine Pass, Texas
9410170 San Diego, California
9414290 San Francisco, California
9755371 San Juan, Puerto Rico
9459450 Sand Point, Alaska
8531680 Sandy Hook, New Jersey
9411340 Santa Barbara, California
9410840 Santa Monica, California
9447130 Seattle, Washington
8419870 Seavey Island, Maine
9455500 Seldovia, Alaska
9455090 Seward, Alaska
8638610 Sewells Point, Virginia
9451600 Sitka, Alaska
9452400 Skagway, Alaska
8577330 Solomons Island, Maryland
9435380 South Beach, Oregon
8659084 Southport, North Carolina
8661070 Springmaid Pier, South Carolina
8726520 St. Petersburg, Florida
8518750 The Battery, New York
9440910 Toke Point, Washington
9462620 Unalaska, Alaska
8723970 Vaca Key, Florida
9454240 Valdez, Alaska
1890000 Wake Island
8594900 Washington, District of Columbia
8658120 Wilmington, North Carolina
8447930 Woods Hole, Massachusetts
9453220 Yakutat, Alaska
PSMSL Data
130-081 Aarhus, Denmark
641-003 Abashiri, Japan
170-011 Aberdeen I & II, UK
645-021 Aburatsu, Japan
642-091 Aburatsubo, Japan
833-011 Acajutla, El Salvador
485-001 Aden, Yemen
290-065 Alexandroupolis, Greece
220-011 Algeciras, Spain
040-041 Andenes, Norway
850-012 Antofagasta, Chile
999-003 Argentine Islands, Antarctica
690-002 Auckland II, New Zealand
999-001 Bahia Esperanza, Antarctica
280-011 Bakar, Croatia
840-011 Balboa, Panama
025-001 Barentsburg, Norway
040-221 Bergen, Norway
690-041 Bluff/Southland Harbour, New Zealand
295-021 Bourgas, Bulgaria
190-091 Brest, France
680-078 Brisbane, Australia
842-011 Buenaventura, Colombia
860-151 Buenos Aires, Argentina
680-073 Bundaberg, Australia
930-071 Cabo San Antonio, Cuba
830-020 Cabo San Lucas, Mexico
220-003 Cadiz III, Spain
850-021 Caldera, Chile
874-051 Cananeia, Brazil
680-479 Carnarvon, Australia
902-021 Cartagena, Colombia
210-021 Cascais, Portugal
340-001 Ceuta, Spain
500-091 Chennai/Madras, India
648-001 Chichijima, Japan
970-141 Churchill, Canada
500-081 Cochin, India
297-021 Constantza, Romania
904-011 Cristobal, Panama
140-012 Cuxhaven 2, Germany
610-044 Dalian, China
083-081 Daugavgriva, Latvia
660-121 Davao, Philippines
060-281 Degerby, Finland
500-131 Diamond Harbour, India
030-345 Dikson, Russia
175-071 Dublin, Ireland
280-081 Dubrovnik, Croatia
190-001 Dunkerque, France
430-091 Durban, South Africa
810-003 Easter Island E, Chile
830-001 Ensenada, Mexico
130-121 Esbjerg, Denmark
130-071 Fredericia, Denmark
130-091 Frederikshavn, Denmark
680-471 Fremantle, Australia
732-012 Funafuti & Funafuti B, Tuvalu
050-201 Furuogrund, Sweden
500-109 Gangra, India
110-022 Gdansk/Nowy Port, Poland
130-001 Gedser, Denmark
250-011 Genova, Italy
930-031 Gibara, Cuba
830-031 Guaymas, Mexico
641-031 Hakodate I, Japan
500-110 Haldia, India
970-011 Halifax, Canada
060-361 Hamina, Finland
060-331 Hanko/Hango, Finland
040-151 Heimsjo, Norway
060-351 Helsinki, Finland
130-101 Hirtshals, Denmark
605-081 Hondau, Vietnam
734-004 Honiara-B & Honiara II , Solomon Islands
040-015 Honningsvag, Norway
130-031 Hornbaek, Denmark
645-011 Hosojima, Japan
874-092 Ilha Fiscal, Brazil
620-033 Jeju, South Korea
660-141 Jolo, Philippines
290-021 Kalamai, Greece
080-181 Kaliningrad, Russia
500-011 Kandla, India
610-016 Kanmen, China
750-012 Kanton Island & Kanton Island B, Kiribati
710-026 Kapingamarangi, Federated States Of Micronesia
490-021 Karachi, Pakistan
060-071 Kaskinen/Kasko, Finland
290-017 Katakolon, Greece
612-002 Keelung II, Taiwan
060-001 Kemi, Finland
290-034 Khalkis North, Greece
290-071 Khios, Greece
050-051 Klagshamn, Sweden
084-161 Klaipeda, Lithuania
600-021 Ko Lak, Thailand
545-001 Ko Taphao Noi, Thailand
130-021 Kobenhavn, Denmark
110-072 Kolobrzeg, Poland
130-041 Korsor, Denmark
050-081 Kungholmsfort, Sweden
642-141 Kushimoto, Japan
641-021 Kushiro, Japan
200-030 La Coruna, Spain
845-012 La Libertad II, Ecuador
210-031 Lagos, Portugal
050-123 Landsort Norra & Landsort, Sweden
190-051 Le Havre, France
660-021 Legaspi, Philippines
290-091 Leros, Greece
170-001 Lerwick, UK
083-151 Liepaja, Latvia
610-032 Lusi, China
690-022 Lyttelton II, New Zealand
609-001 Macau, China
720-017 Majuro B/C, Marshall Islands
220-031 Malaga, Spain
711-021 Malakal B, Palau
040-211 Maloy, Norway
060-101 Mantyluoto, Finland
830-071 Manzanillo, Mexico
860-101 Mar Del Plata (Naval Base), Argentina
500-065 Marmagao, India
230-051 Marseille, France
642-061 Mera, Japan
620-027 Mokpo, South Korea
870-011 Montevideo, Uruguay
620-061 Mugho, South Korea
500-041 Mumbai/Bombay, India
030-018 Murmansk, Russia
645-064 Nagasaki, Japan
646-024 Naha, Japan
970-134 Nain, Canada
040-081 Narvik, Norway
970-089 Neuville, Canada
170-161 Newlyn, UK
160-031 Nieuwpoort, Belgium
170-053 North Shields, UK
160-021 Oostende, Belgium
040-321 Oslo, Norway
060-011 Oulu/Uleaborg, Finland
780-011 Papeete-B, Fare Ute Point, French Polynesia
500-106 Paradip, India
775-001 Penrhyn, Cook Islands
630-021 Petropavlovsk-Kamchatsky, Russia
060-041 Pietarsaari/Jakobstad, Finland
710-032 Pohnpei B & C, Federated States of Micronesia
970-061 Pointe-Au-Pere, Canada
360-001 Ponta Delgada, Portugal
540-001 Port Blair, India
430-088 Port Elizabeth, South Africa
680-494 Port Hedland, Australia
305-021 Poti, Georgia
822-001 Prince Rupert, Canada
920-001 Progreso, Mexico
030-725 Providenia, Russia
860-011 Puerto Deseado, Argentina
860-031 Puerto Madryn, Argentina
620-046 Pusan, South Korea
610-039 Qinhuangdao, China
611-010 Quarry Bay/North Point, China
970-071 Quebec, Canada
836-011 Quepos, Costa Rica
860-081 Quequen, Argentina
605-041 Quinhon, Vietnam
060-021 Raahe/Brahestad, Finland
670-021 Rabaul, Papua New Guinea
555-011 Raffles Light House, Singapore
785-006 Rarotonga & Rarotonga B, Cook Islands
050-191 Ratan, Sweden
010-001 Reykjavik, Iceland
808-001 Rikitea, French Polynesia
290-110 Rodhos, Greece
040-136 Rorvik, Norway
280-006 Rovinj, Croatia
030-003 Russkaya Gavan II, Russia
970-001 Saint John, N.B., Canada
830-091 Salina Cruz, Mexico
845-031 Santa Cruz, Ecuador
555-051 Sembawang, Singapore
298-041 Sevastopol, Ukraine
170-101 Sheerness, UK
430-061 Simons Bay, South Africa
130-051 Slipshavn, Denmark
050-011 Smogen, Sweden
190-141 Socoa, France
280-031 Split Harbour-Gradska Luka, Croatia
280-021 Split Rt Marjana, Croatia
970-121 St. Johns, NFLD, Canada
863-002 Stanley I/II, Falkland Islands
040-261 Stavanger, Norway
050-141 Stockholm, Sweden
170-251 Stornoway, UK
555-021 Sultan Shoal, Singapore
742-012 Suva A, Fiji
110-092 Swinoujscie, Poland
680-140 Sydney, Fort Denison 1 & 2, Australia
611-014 Tai Po Kau, China
410-001 Takoradi, Ghana
290-051 Thessaloniki, Greece
030-447 Tiksi, Russia
822-116 Tofino, Canada
015-011 Torshavn, Denmark
680-051 Townsville, Australia
647-068 Toyama, Japan
040-301 Tregde, Norway
270-061 Trieste, Italy
611-017 Tsim Bei Tsui, China
300-001 Tuapse, Russia
060-241 Turku/Abo, Finland
620-051 Ulsan, South Korea
110-057 Ustka, Poland
060-051 Vaasa/Vasa, Finland
822-071 Vancouver, Canada
040-001 Vardo, Norway
295-051 Varna, Bulgaria
822-101 Victoria, Canada
500-101 Vishakhapatnam, India
647-071 Wajima, Japan
641-061 Wakkanai, Japan
427-001 Walvis Bay, Namibia
120-012 Warnemunde, Germany
680-021 Weipa, Australia
690-011 Wellington, New Zealand
120-022 Wismar, Germany
110-047 Wladyslawowo, Poland
625-011 Wonsan, North Korea
610-005 Xiamen, China
710-011 Yap B, Federated States of Micronesia
630-001 Yuzhno Kurilsk, Russia
160-011 Zeebrugge, Belgium
610-002 Zhapo, China


Water level records are a combination of the fluctuations of the ocean and the vertical land motion at the location of the station. The sea level variations determined are the linear trend, the average seasonal cycle, and the interannual variability at each station. All the calculated trends are also available as a table in millimeters/year and in feet/century


Revised: 10/15/2013
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services