NOAA Tides & Currents
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NEW PUBLICATIONS
POPULAR PUBLICATIONS
Important Topic Publications
Educational Materials
CO-OPS Outreach Materials
ECONOMIC VALUATIONS AND ASSESSMENTS
HISTORIC TIDE AND TIDAL CURRENT TABLES
REPORTS AND MEMORANDUMS
Technical Reports
Technical Memorandums
Special Publications
Circulation Survey Reports
Storm Reports
Great Lakes Reports
Great Lake Water Levels Reports
MANUALS AND STANDARDS
Data Collection Platform References
Sensor References
Benchmarks, Leveling and Geodetic References
Office of Coast Survey Standards and Requirements
References for National Water Level Program
Communications and Data Formats References
Data Processing and Analysis References
New Publications
  1. NOAA High Tide Flooding Report- 2021 State of U.S. High Tide Flooding and Annual Outlook
  2. NOAA Technical Report NOS CO-OPS 093 - Puget Sound Current Survey 2015–2017 Including the United States’ Portions of the Greater Salish Sea
  3. NOAA Technical Report NOS CO-OPS 092 - 2019 State of U.S. High Tide Flooding with a 2020 Outlook
  4. NOAA Technical Report NOS CO-OPS 091 - Implementation of the Lakes Michigan and Huron Operational Forecast System (LMHOFS) and the Nowcast/Forecast Skill Assessment
  5. NOAA Technical Report NOS CO-OPS 090 - 2018 State of the US High Tide Flooding with a 2019 Outlook
  6. NOAA Technical Report NOS CO-OPS 089 - Cape Fear, North Carolina Current Survey 2016
  7. 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
  8. 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
  9. User’s Guide to Vertical Control and Geodetic Leveling for CO-OPS Observing Systems
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
  1. The Value of PORTS® to the Nation
  2. An Assessment of the Value of the Physical Oceanographic Real-Time System (PORTS®) to the U.S. Economy
  3. NOAA Technical Report NOS CO-OPS 044 - Estimating Economic Benefits from NOAA PORTS Installations - A Value of Information Approach
  4. Estimating Economic Benefits from NOAA PORTS Information - A Case Study of Houston/Galveston
  5. Estimating Economic Benefits from NOAA PORTS Information - A Case Study of Tampa Bay
  6. 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 High Tide Flooding Report- 2021 State of U.S. High Tide Flooding and Annual Outlook
NOAA Technical Report NOS CO-OPS 093 - Puget Sound Current Survey 2015–2017 Including the United States’ Portions of the Greater Salish Sea
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
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