New Publications
- NOAA Technical Report NOS CO-OPS 092 - 2019 State of U.S. High Tide Flooding with a 2020 Outlook
- NOAA Technical Report NOS CO-OPS 091 - Implementation of the Lakes Michigan and Huron Operational Forecast System (LMHOFS) and the Nowcast/Forecast Skill Assessment
- NOAA Technical Report NOS CO-OPS 090 - 2018 State of the US High Tide Flooding with a 2019 Outlook
- NOAA Technical Report NOS CO-OPS 089 - Cape Fear, North Carolina Current Survey 2016
- NOAA Technical Report NOS CO-OPS 088 - Implementation of the Gulf of Maine Operational Forecast System (GoMOFS) and the Semi-Operational NOWCAST/FORECAST Skill Assessment
- NOAA Technical Report NOS CO-OPS 087 - Implementation of the Upgraded Lake Erie Operational Forecast System (LEFOS) and the Semi-Operational NOWCAST/FORECAST Skill Assessment
- User’s Guide to Vertical Control and Geodetic Leveling for CO-OPS Observing Systems
- NOAA Technical Report NOS CO-OPS 086 - Patterns and Projections of High Tide Flooding
- NOAA Technical Report NOS CO-OPS 086 - Data : Patterns and Projections of High Tide Flooding (CSV)
- NOAA Technical Report NOS CO-OPS 085 - A Comparison of Datums Derived from CO-OPS Verified Data Products and Tidal Analysis Datum
- Hurricane Harvey 2017 Water Level and Meteorological Data Report
- Hurricane Irma 2017 Water Level and Meteorological Data Report
- NOAA Technical Report NOS CO-OPS 084 - Casco Bay, Maine Current Survey 2014.
Popular Publications
Important Topic Publications
- Understanding Sea Level Change
- Hurricane Sandy 2012 Water Level and Meteorological Data Report
Educational Materials
- Fantastic Tidal Datums
- Our Restless Tides
- San Francisco Tides of History
- Tide and Current Glossary
- NOAA Special Publication NOS CO-OPS 3 - Tidal Analysis and Predictions
- Tidal Currents Educational Pamphlet
- Understanding Sea Level Change
- Understanding Tides
- Water Level Observation Network for Central America
- 150 Years of Tides on the Western Coast
CO-OPS Outreach Materials
- CO-OPS Strategic Plan 2019-2023
- CO-OPS Strategic Plan 2015-2019
- CO-OPS Strategic Plan 2010-2015
- CO-OPS Customer Satisfaction Survey Results
- CO-OPS Trifold
- PORTS® Program
- COASTAL Program
- National Currents Program
- NOAA Sentinels of the Coast
Economic Valuations and Assessments
- The Value of PORTS® to the Nation
- An Assessment of the Value of the Physical Oceanographic Real-Time System (PORTS®) to the U.S. Economy
- NOAA Technical Report NOS CO-OPS 044 - Estimating Economic Benefits from NOAA PORTS Installations - A Value of Information Approach
- Estimating Economic Benefits from NOAA PORTS Information - A Case Study of Houston/Galveston
- Estimating Economic Benefits from NOAA PORTS Information - A Case Study of Tampa Bay
- Estimating Economic Benefits from NOAA PORTS Information - A Case Study of the Columbia River
Historic Tide and Tidal Current Tables
- Click here for previously published Historic Tide and Tidal Current Tables
Reports and Memorandums
Technical Reports
- NOAA Technical Report NOS CO-OPS 092 - 2019 State of U.S. High Tide Flooding with a 2020 Outlook
- NOAA Technical Report NOS CO-OPS 091 - Implementation of the Lakes Michigan and Huron Operational Forecast System (LMHOFS) and the Nowcast/Forecast Skill Assessment
- NOAA Technical Report NOS CO-OPS 090 - 2018 State of the US High Tide Flooding with a 2019 Outlook
- NOAA Technical Report NOS CO-OPS 089 - Cape Fear, North Carolina Current Survey 2016
- NOAA Technical Report NOS CO-OPS 088 - Implementation of the Gulf of Maine Operational Forecast System (GoMOFS) and the Semi-Operational NOWCAST/FORECAST Skill Assessment
- NOAA Technical Report NOS CO-OPS 087 - Implementation of the Upgraded Lake Erie Operational Forecast System (LEFOS) and the Semi-Operational NOWCAST/FORECAST Skill Assessment
- NOAA Technical Report NOS CO-OPS 086 - Patterns and Projections of High Tide Flooding
- NOAA Technical Report NOS CO-OPS 086 - Data: Patterns and Projections of High Tide Flooding (CSV)
- NOAA Technical Report NOS CO-OPS 085 - A Comparison of Datums Derived from CO-OPS Verified Data Products and Tidal Analysis Datum
- NOAA Technical Report NOS CO-OPS 084 - Casco Bay, Maine Current Survey 2014.
- NOAA Technical Report NOS CO-OPS 083 - Global and Regional SLR Scenarios for the U.S.
- NOAA Technical Report NOS CO-OPS 083 - Data: Global and Regional SLR Scenarios for the U.S. (CSV)
- NOAA Technical Report NOS CO-OPS 082 - Assessment of the Eastern Gulf of Mexico Harmful Algal Bloom Operational Forecast System (GOMX HAB-OFS)-2008-2014
- NOAA Technical Report NOS CO-OPS 081 - Shoreline Tidal Boundary Project For Tulalip, WA
- NOAA Technical Report NOS 139 - NOAA guidance Document for Determination of Vertical Land Motion at Water Level Stations Using GPS Technology
- NOAA Technical Report NOS CO-OPS 080 - Assessment of the Western Gulf of Mexico Harmful Algal Bloom Operational Forecast System (GOMX HAB-OFS)
- NOAA Technical Report NOS CO-OPS 079 - An Examination of the June 2013 East Coast Meteotsunami Captured By NOAA Observing Systems
- NOAA Technical Report NOS CO-OPS 077 - Estimating Accuracies of Tidal Datums From Short Term Observations
- NOAA Technical Report NOS CO-OPS 076 - Poplar Island, MD Water Level Variations Report
- NOAA Technical Report NOS CO-OPS 075 - Water level and Wave height Estimates at NOAA Tide Stations from Acoustic and Microwave Sensors
- NOAA Technical Report NOS CO-OPS 074 - Gap Analysis of the Great Lakes Component of the National Water Level Observation Network (NWLON)
- NOAA Technical Report NOS CO-OPS 073 - Sea Level Rise and Nuisance Flood Frequency Changes around the United States
- NOAA Technical Report NOS CO-OPS 072 - Ocean Systems Test and Evaluation Program, Test and Evaluation Report For WaterLog® H-3612 Radar Sensor in CO-OPS Air Gap Applications
- NOAA Technical Report NOS CO-OPS 071 - Ocean Systems Test and Evaluation Program, Test and Evaluation Report For the Greenspan EC3000 Conductivity/Temperature Sensor
- NOAA Technical Report NOS CO-OPS 070 - Error Analysis Procedures Used by the National Ocean Service to Compute Estimated Error Bounds for Tidal Datums in the Arctic Ocean
- NOAA Technical Report NOS CO-OPS 069 - Coastal Ocean Modeling Framework on NOAA's High Performance Computer (COMF-HPC)
- NOAA Technical Report NOS CO-OPS 068 - Implementation of Procedures for Computation of Tidal Datums in Areas with Anomalous Trends in Relative Mean Sea Level
- NOAA Technical Report NOS CO-OPS 067 - Extreme Water Levels of the United States
- NOAA Technical Report NOS CO-OPS 066 - Assessment of the Eastern Gulf of Mexico Harmful Algal Bloom Operational Forecast System(GOMX HAB-OFS)
- NOAA Technical Report NOS CO-OPS 065 - Estimating Vertical Land Motion from Long-Term Tide Gauge Records
- NOAA Technical Report NOS CO-OPS 062 - Tides Under the Ice: Measuring Water Levels at Barrow, Alaska 2008-2010
- NOAA Technical Report NOS CO-OPS 061 - NOAA Ocean Systems Test and Evaluation Report, Limited Acceptance of the Design Analysis WaterLog® H-3611i Microwave Radar Water Level Sensor
- NOAA Technical Report NOS CO-OPS 057 - Redundant Communications Solutions for PORTS® Acoustic Current Profiler Installations
- NOAA Technical Report NOS CO-OPS 056 - Effects of the November 2009 Nor'easter on Water Levels
- NOAA Technical Report NOS CO-OPS 055 - Visibility Sensors Implementation Plan
- NOAA Technical Report NOS CO-OPS 053 - Sea Level Variations of the United States, 1854 - 2006
- NOAA Technical Report NOS CO-OPS 051 - Elevated East Coast Sea Level Anomaly: June-July 2009
- NOAA Technical Report NOS CO-OPS 047 - Annual Report of the Gulf of Mexico Harmful Algal Bloom Operational Forecast System
- NOAA Technical Report NOS CO-OPS 046 - Humboldt Bay Current Surveys: December 2002 to October 2004
- NOAA Technical Report NOS CO-OPS 044 - Estimating Economic Benefits from NOAA PORTS Installations - A Value of Information Approach
- NOAA Technical Report NOS CO-OPS 043 - Test, Evaluation, and Implementation of Current Measurement Systems on Aids-To-Navigation
- NOAA Technical Report NOS CO-OPS 042 - Microwave Air Gap-Bridge Clearance Sensor Test, Evaluation, and Implementation Support
- NOAA Technical Report NOS CO-OPS 041 - North Carolina Bathymetry/Topography Sea Level Rise Project: Determination of Sea Level Trends - New Sept. 2004
- NOAA Technical Report NOS CO-OPS 040 - Effects of Hurricane Isabel on Water Levels - Data Report
- NOAA Technical Report NOS CO-OPS 039 - NOS Procedures for Developing and Implementing Operational Nowcast and Forecast Hydrodynamic Model Systems
- NOAA Technical Report NOS CO-OPS 038 - Triaxys Directional Wave Buoy for Nearshore Wave Measurements-Test and Evaluation Plan
- NOAA Technical Report NOS CO-OPS 037 - Port of New York and New Jersey Operational Forecast System, Implementation Plan
- NOAA Technical Report NOS CO-OPS 036 - Sea Level Variations of the United States 1854-1999
- NOAA Technical Report NOS CO-OPS 035 - Historical Golden Gate Tidal Series
- NOAA Technical Report NOS CO-OPS 034 - Ocean Systems Test and Evaluation Program (OSTEP) Development Plan
- NOAA Technical Report NOS CO-OPS 033 - Towing Basin Speed Calibration of Acoustic Doppler Current Profiling Instruments
- NOAA Technical Report NOS CO-OPS 031 - National Physical Oceanographic Real-time System (PORTS)
- NOAA Technical Report NOS CO-OPS 030 - NWLON/DMS Quality, Control Software (QC): Functional Requirements Document
- NOAA Technical Report NOS CO-OPS 027 - Effects of Hurricane Floyd on Water Levels - Data Report
- NOAA Technical Report NOS CO-OPS 026 - A Guide to CO-OPS SHEF and CREX Products
- NOAA Technical Report NOS CO-OPS 025 - Currents in the St. John's River, Florida - Spring and Summer of 1998
- NOAA Technical Report NOS CO-OPS 022 - Assessment of the National Ocean Service's Tidal Current Program
- NOAA Technical Report NOS CO-OPS 020 - Nowcast and Forecast Hydrodynamic Model Systems, NOS Procedures for Developing and Implementing Operational Nowcast and Forecast Systems for PORTS
- NOAA Technical Report NOS 2010-01 - Technical Considerations for Use of Geospatial Data in Sea Level Change Mapping and Assessment
Technical Memorandums
- NOAA Technical Memorandum NOS CO-OPS 048 - A Network Gaps Analysis for the National Water Level Observation Network - Updated Edition (Sept 2014)
- NOAA Technical Memorandum NOS CO-OPS 021 - Tidal Current Analysis Procedures and Associated Computer Programs
- NOAA Technical Memorandum NOS NGS-58 - Guidelines for Establishing GPS-Derived Ellipsoid Heights (Standards 2 cm and 5 cm), version 4.3", November 1997
- NOAA Technical Memorandum NOS OES 008 - Tidal Characteristics and Datums of Laguna Madre, Texas
Special Publications
- Special Publication No. 98: Manual of Harmonic Analysis and Prediction of Tides
- Special Publication No. 98 Supplement: Computer Application to Tides in the National Ocean Survey
- NOAA Special Publication NOS CO-OPS 1 - Tide Datums and Their Applications
- NOAA Special Publication NOS CO-OPS 2 - Computational Techniques for Tidal Datums Handbook
- NOAA Special Publication NOS CO-OPS 3 - Tidal Analysis and Predictions
Circulation Survey Reports
- NOS Oceanographic Circulatory Survey Report No.1 - Tide and Tidal Current Observations from 1965 through 1967 in Long Island Sound, Block Island Sound, and Tributaries
- NOS Oceanographic Circulatory Survey Report No.2 - Tampa Bay Circulation Survey 1963
- NOS Oceanographic Circulatory Survey Report No.3 - Puget Sound Approaches Circulation Survey
- NOS Oceanographic Circulatory Survey Report No.4 - Cook Inlet Circulatory Survey: 1973-1975
- NOS Oceanographic Circulation Survey Report No.5 - New York Harbor Circulation Survey: 1980-81
- NOS Oceanographic Circulation Survey Report No.6 - Southeast Atlantic Coast Estuaries, Sapelo Sound to St. Simons Sounds, Georgia Circulation Survey: 1980
- NOS Oceanographic Circulation Survey Report No.7 - San Francisco Bay Area Circulation Survey: 1979-1980
- NOS Oceanographic Circulation Survey Report No.8 - Chesapeake Bay Circulation Survey: 1981-1983
- NOS Oceanographic Circulation Survey Report No.9 - Delaware River and Bay Circulation Survey: 1984-1985
- NOS Oceanographic Circulation Survey Report No.10 - Long Island Sound Oceanography Project: 1988-1990
- NOS Oceanographic Circulation Survey Report No.11 - Tampa Bay Oceanography Survey Project: 1990-1991
Storm Reports
- Hurricane Harvey 2017 Water Level and Meteorological Data Report
- Hurricane Irma 2017 Water Level and Meteorological Data Report
- Hurricane Matthew Water Level and Meteorological Data Report
- January 2016 Nor’easter
- Storm Events Data Reports
- Hurricane Sandy 2012 Water Level and Meteorological Data Report
- Hurricane Isaac 2012 Water Level and Meteorological Data Report
- Hurricane Irene 2011 Water Level and Meteorological Data Report
- Hurricane Ike 2008 Water Levels and Meteorological Report
- Hurricane Gustav 2008 Water Levels and Meteorological Report
- Tropical Storm Ernesto 2006 Verified Water Level Report
- CO-OPS Contribution to NOAA's 2005 Hurricane Season Response
- Hurricane Wilma 2005 Preliminary Water Levels Report
- Hurricane Rita 2005 Preliminary Water Levels Report
- Hurricane Katrina 2005 Preliminary Water Levels Report
- Hurricane Dennis 2005 Preliminary Water Levels Report
- Hurricane Cindy 2005 Preliminary Water Levels Report
- Hurricane Jeanne 2004 Preliminary Water Levels Report
- Hurricane Ivan 2004 Preliminary Water Levels Report
- Hurricane Frances 2004 Preliminary Water Levels Report
- Hurricane Charley 2004 Preliminary Water Levels Report
- Hurricane Claudette 2003 Preliminary Water Levels Report
- Tropical Storm Bill 2003 Preliminary Water Levels Report
- Hurricane Lili 2002 Preliminary Water Levels Report
- Tropical Storm Isidore 2002 Preliminary Water Levels Report
- NOAA Technical Report NOS CO-OPS 040 - Effects of Hurricane Isabel on Water Levels - Data Report
- NOAA Technical Report NOS CO-OPS 027 - Effects of Hurricane Floyd on Water Levels - Data Report
Great Lakes Reports
- Great Lakes - IGLD85 USACE Update No. 76
- Great Lakes - Establishment of International Great Lakes Datum (1985)
- Great Lakes - Establishment of International Great Lakes Datum (1955)
- Great Lakes - History of Water Level Gauges - Upper Great Lakes & the St. Clair Detroit Rivers - Jan 1978
- Great Lakes - History of Water Level Gauges - Lower Great Lakes & International Section of St. Lawrence River - Mar 1987
Great Lake Water Levels Reports
- Great Lakes Water Levels 1970
- Great Lakes Water Levels 1971
- Great Lakes Water Levels 1972
- Great Lakes Water Levels 1973
- Great Lakes Water Levels 1974
- Great Lakes Water Levels 1975
- Great Lakes Water Levels 1976
- Great Lakes Water Levels 1977
- Great Lakes Water Levels 1978
- Great Lakes Water Levels 1979
- Great Lakes Water Levels 1980
- Great Lakes Water Levels 1981
- Great Lakes Water Levels 1982
- Great Lakes Water Levels 1983
- Great Lakes Water Levels 1984
- Great Lakes Water Levels 1985
- Great Lakes Water Levels 1986
- Great Lakes Water Levels 1987
- Great Lakes Water Levels 1988
- Great Lakes Water Levels 1989
- Great Lakes Water Levels 1990
- Great Lakes Water Levels 1991
- Great Lakes Water Levels 1992
- Great Lakes Water Levels 1993
- Great Lakes Water Levels 1994
- Great Lakes Water Levels 1860-1985
- Great Lakes Water Levels 1860-1990
Manuals and Standards
Data Collection Platform References
- Next Generation Water Level Measurement System (NGWLMS) Site Design, Preparation, and Installation Manual (NGWLMS Manual), January 1991
Sensor References
- CO-OPS Sensor Specifications and Measurement Algorithms
Benchmarks, Leveling and Geodetic References
- User’s Guide to Vertical Control and Geodetic Leveling for CO-OPS Observing Systems
- Real-Time Kinematic (RTK) Team Final Report
Office of Coast Survey Standards and Requirements
- Standards and Requirements
References for National Water Level Program
- Standing Project Instructions for Coastal and Great Lakes Water Level Stations
- FY 2019 Project Instructions for Coastal and Great Lakes Observing Systems
- Great Lakes - IGLD85 USACE Update No. 76
- Great Lakes - Establishment of International Great Lakes Datum (1985)
- Great Lakes - Establishment of International Great Lakes Datum (1955)
- Great Lakes - History of Water Level Gauges - Upper Great Lakes & the St. Clair Detroit Rivers - Jan 1978
- Great Lakes - History of Water Level Gauges - Lower Great Lakes & International Section of St. Lawrence River - Mar 1987
- FY 2017 Station Operational Support Lists
Communications and Data Formats References
- Information Systems Branch PORTS Uniform Flat File Format (PUFFF)
- Spatial Data Modifications and Enhancements (v1.2), August 2005
- Ocean Systems Test and Evaluation Program Data Communications Plan
Data Processing and Analysis References
- NOAA Special Publication NOS CO-OPS 1 - Tide Datums and Their Applications
- NOAA Special Publication NOS CO-OPS 2 - Computational Techniques for Tidal Datums Handbook
- 30-1 Manual of Tide Observations
- NOAA Technical Memorandum NOS CO-OPS 021 - Tidal Current Analysis Procedures and Associated Computer Programs
- Manual of Harmonic Constant Reductions
- The National Tidal Datum Convention of 1980
- NOAA Technical Report NOS 64 Variability of Tidal Datums and Accuracy in Determining Datums from Short Series of Observations