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Table of Contents New Publications Popular Publications Economic Valuations and Assessments Historic Tide and Tidal Current Tables Reports and Memorandums Manuals and Standards

New Publications

  1. NOAA Technical Report NOS CO-OPS 102: Southwest Texas Current Survey 2017-2019 Aransas Pass to Brazos Santiago Pass
  2. NOAA Technical Report NOS CO-OPS 101: Assessment of WaterLog® Microwave Water Level Sensors in the Great Lakes National Water Level Observation Network
  3. NOAA Technical Report NOS CO-OPS 100: Fort McHenry Wetlands Restoration Project
  4. NOAA Technical Report NOS CO-OPS 099 Tidal Analysis of the Barren Island Restoration
  5. NOAA Technical Report NOS CO-OPS 098 Implementation of the Upgraded Northern Gulf of Mexico Operational Forecast System(NGOGS2) and the Semi-Operational Nowcast/Forecast Skill Assessment
  6. NOAA Technical Report NOS CO-OPS 097 Implementation of the West Coast Operational Forecast System(WCOFS) and the Semi-Operational Nowcast/Forecast Skill Assessment
  7. NOAA Technical Report NOS CO-OPS 096 Implementation of Cookinlet Operational Forecastsystem (CIOFS) and the Nowcast/Forecast Skill Assessment
  8. NOAA Technical Report NOS CO-OPS 095 New York Harbor Current Survey 2017-2019 Including adjacent waters of New York and New Jersey
  9. CO-OPS Requirements Report - Requirements for a Nearshore Wave Observation Capability within the National Ocean Service Center for Operational Oceanographic Products and Services
  10. NOAA Technical Report NOS CO-OPS 094 - Recapitalization Plan National Water Level Observations Network

Popular Publications


    Important Topic Publications

    1. Understanding Sea Level Change
    2. Hurricane Sandy 2012 Water Level and Meteorological Data Report

    High Tide Flooding

    1. 2021 State of High Tide Flooding and Annual Outlook
    2. 2020 State of High Tide Flooding and Annual Outlook
    3. 2019 State of High Tide Flooding and Annual Outlook
    4. 2018 State of High Tide Flooding and Annual Outlook
    5. 2017 State of High Tide Flooding and Annual Outlook
    6. 2016 State of High Tide Flooding and Annual Outlook
    7. 2015 State of High Tide Flooding and Annual Outlook

    Educational Materials

    1. Fantastic Tidal Datums
    2. Our Restless Tides
    3. San Francisco Tides of History
    4. Tide and Current Glossary
    5. NOAA Special Publication NOS CO-OPS 3 - Tidal Analysis and Predictions
    6. Tidal Currents Educational Pamphlet
    7. Understanding Sea Level Change
    8. Understanding Tides
    9. Water Level Observation Network for Central America
    10. 150 Years of Tides on the Western Coast

    CO-OPS Outreach Materials

    1. CO-OPS Strategic Plan 2019-2023
    2. CO-OPS Strategic Plan 2015-2019
    3. CO-OPS Strategic Plan 2010-2015
    4. CO-OPS Customer Satisfaction Survey Results
    5. CO-OPS Trifold
    6. PORTS® Program
    7. COASTAL Program
    8. National Currents Program
    9. 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

  1. Click here for previously published Historic Tide and Tidal Current Tables

Reports and Memorandums


    Technical Reports

    1. NOAA Technical Report NOS CO-OPS 102: Southwest Texas Current Survey 2017-2019 Aransas Pass to Brazos Santiago Pass
    2. NOAA Technical Report NOS CO-OPS 101: Assessment of WaterLog® Microwave Water Level Sensors in the Great Lakes National Water Level Observation Network
    3. NOAA Technical Report NOS CO-OPS 100: Fort McHenry Wetlands Restoration Project
    4. NOAA Technical Report NOS CO-OPS 099 Tidal Analysis of the Barren Island Restoration
    5. NOAA Technical Report NOS CO-OPS 098 Implementation of the Upgraded Northern Gulf of Mexico Operational Forecast System(NGOGS2) and the Semi-Operational Nowcast/Forecast Skill Assessment
    6. NOAA Technical Report NOS CO-OPS 097 Implementation of the West Coast Operational Forecast System(WCOFS) and the Semi-Operational Nowcast/Forecast Skill Assessment
    7. NOAA Technical Report NOS CO-OPS 096 Implementation of Cookinlet Operational Forecastsystem (CIOFS) and the Nowcast/Forecast Skill Assessment
    8. NOAA Technical Report NOS CO-OPS 095 New York Harbor Current Survey 2017-2019 Including adjacent waters of New York and New Jersey
    9. NOAA Technical Report NOS CO-OPS 094 - Recapitalization Plan National Water Level Observations Network
    10. NOAA High Tide Flooding Report- 2021 State of U.S. High Tide Flooding and Annual Outlook
    11. NOAA Technical Report NOS CO-OPS 093 - Puget Sound Current Survey 2015–2017 Including the United States’ Portions of the Greater Salish Sea
    12. NOAA Technical Report NOS CO-OPS 092 - 2019 State of U.S. High Tide Flooding with a 2020 Outlook
    13. NOAA Technical Report NOS CO-OPS 091 - Implementation of the Lakes Michigan and Huron Operational Forecast System (LMHOFS) and the Nowcast/Forecast Skill Assessment
    14. NOAA Technical Report NOS CO-OPS 090 - 2018 State of the US High Tide Flooding with a 2019 Outlook
    15. NOAA Technical Report NOS CO-OPS 089 - Cape Fear, North Carolina Current Survey 2016
    16. 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
    17. 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
    18. NOAA Technical Report NOS CO-OPS 086 - Patterns and Projections of High Tide Flooding
    19. NOAA Technical Report NOS CO-OPS 086 - Data: Patterns and Projections of High Tide Flooding (CSV)
    20. NOAA Technical Report NOS CO-OPS 085 - A Comparison of Datums Derived from CO-OPS Verified Data Products and Tidal Analysis Datum
    21. NOAA Technical Report NOS CO-OPS 084 - Casco Bay, Maine Current Survey 2014.
    22. NOAA Technical Report NOS CO-OPS 083 - Global and Regional SLR Scenarios for the U.S.
    23. NOAA Technical Report NOS CO-OPS 083 - Data: Global and Regional SLR Scenarios for the U.S. (CSV)
    24. 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
    25. NOAA Technical Report NOS CO-OPS 081 - Shoreline Tidal Boundary Project For Tulalip, WA
    26. NOAA Technical Report NOS 139 - NOAA guidance Document for Determination of Vertical Land Motion at Water Level Stations Using GPS Technology
    27. NOAA Technical Report NOS CO-OPS 080 - Assessment of the Western Gulf of Mexico Harmful Algal Bloom Operational Forecast System (GOMX HAB-OFS)
    28. NOAA Technical Report NOS CO-OPS 079 - An Examination of the June 2013 East Coast Meteotsunami Captured By NOAA Observing Systems
    29. NOAA Technical Report NOS CO-OPS 077 - Estimating Accuracies of Tidal Datums From Short Term Observations
    30. NOAA Technical Report NOS CO-OPS 076 - Poplar Island, MD Water Level Variations Report
    31. NOAA Technical Report NOS CO-OPS 075 - Water level and Wave height Estimates at NOAA Tide Stations from Acoustic and Microwave Sensors
    32. NOAA Technical Report NOS CO-OPS 074 - Gap Analysis of the Great Lakes Component of the National Water Level Observation Network (NWLON)
    33. NOAA Technical Report NOS CO-OPS 073 - Sea Level Rise and Nuisance Flood Frequency Changes around the United States
    34. 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
    35. NOAA Technical Report NOS CO-OPS 071 - Ocean Systems Test and Evaluation Program, Test and Evaluation Report For the Greenspan EC3000 Conductivity/Temperature Sensor
    36. 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
    37. NOAA Technical Report NOS CO-OPS 069 - Coastal Ocean Modeling Framework on NOAA's High Performance Computer (COMF-HPC)
    38. 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
    39. NOAA Technical Report NOS CO-OPS 067 - Extreme Water Levels of the United States
    40. NOAA Technical Report NOS CO-OPS 066 - Assessment of the Eastern Gulf of Mexico Harmful Algal Bloom Operational Forecast System(GOMX HAB-OFS)
    41. NOAA Technical Report NOS CO-OPS 065 - Estimating Vertical Land Motion from Long-Term Tide Gauge Records
    42. NOAA Technical Report NOS CO-OPS 062 - Tides Under the Ice: Measuring Water Levels at Barrow, Alaska 2008-2010
    43. 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
    44. NOAA Technical Report NOS CO-OPS 057 - Redundant Communications Solutions for PORTS® Acoustic Current Profiler Installations
    45. NOAA Technical Report NOS CO-OPS 056 - Effects of the November 2009 Nor'easter on Water Levels
    46. NOAA Technical Report NOS CO-OPS 055 - Visibility Sensors Implementation Plan
    47. NOAA Technical Report NOS CO-OPS 053 - Sea Level Variations of the United States, 1854 - 2006
    48. NOAA Technical Report NOS CO-OPS 051 - Elevated East Coast Sea Level Anomaly: June-July 2009
    49. NOAA Technical Report NOS CO-OPS 047 - Annual Report of the Gulf of Mexico Harmful Algal Bloom Operational Forecast System
    50. NOAA Technical Report NOS CO-OPS 046 - Humboldt Bay Current Surveys: December 2002 to October 2004
    51. NOAA Technical Report NOS CO-OPS 044 - Estimating Economic Benefits from NOAA PORTS Installations - A Value of Information Approach
    52. NOAA Technical Report NOS CO-OPS 043 - Test, Evaluation, and Implementation of Current Measurement Systems on Aids-To-Navigation
    53. NOAA Technical Report NOS CO-OPS 042 - Microwave Air Gap-Bridge Clearance Sensor Test, Evaluation, and Implementation Support
    54. NOAA Technical Report NOS CO-OPS 041 - North Carolina Bathymetry/Topography Sea Level Rise Project: Determination of Sea Level Trends - New Sept. 2004
    55. NOAA Technical Report NOS CO-OPS 040 - Effects of Hurricane Isabel on Water Levels - Data Report
    56. NOAA Technical Report NOS CO-OPS 039 - NOS Procedures for Developing and Implementing Operational Nowcast and Forecast Hydrodynamic Model Systems
    57. NOAA Technical Report NOS CO-OPS 038 - Triaxys Directional Wave Buoy for Nearshore Wave Measurements-Test and Evaluation Plan
    58. NOAA Technical Report NOS CO-OPS 037 - Port of New York and New Jersey Operational Forecast System, Implementation Plan
    59. NOAA Technical Report NOS CO-OPS 036 - Sea Level Variations of the United States 1854-1999
    60. NOAA Technical Report NOS CO-OPS 035 - Historical Golden Gate Tidal Series
    61. NOAA Technical Report NOS CO-OPS 034 - Ocean Systems Test and Evaluation Program (OSTEP) Development Plan
    62. NOAA Technical Report NOS CO-OPS 033 - Towing Basin Speed Calibration of Acoustic Doppler Current Profiling Instruments
    63. NOAA Technical Report NOS CO-OPS 031 - National Physical Oceanographic Real-time System (PORTS)
    64. NOAA Technical Report NOS CO-OPS 030 - NWLON/DMS Quality, Control Software (QC): Functional Requirements Document
    65. NOAA Technical Report NOS CO-OPS 027 - Effects of Hurricane Floyd on Water Levels - Data Report
    66. NOAA Technical Report NOS CO-OPS 026 - A Guide to CO-OPS SHEF and CREX Products
    67. NOAA Technical Report NOS CO-OPS 025 - Currents in the St. John's River, Florida - Spring and Summer of 1998
    68. NOAA Technical Report NOS CO-OPS 022 - Assessment of the National Ocean Service's Tidal Current Program
    69. 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
    70. NOAA Technical Report NOS 2010-01 - Technical Considerations for Use of Geospatial Data in Sea Level Change Mapping and Assessment

    Technical Memorandums

    1. NOAA Technical Memorandum NOS CO-OPS 048 - A Network Gaps Analysis for the National Water Level Observation Network - Updated Edition (Sept 2014)
    2. NOAA Technical Memorandum NOS CO-OPS 021 - Tidal Current Analysis Procedures and Associated Computer Programs
    3. NOAA Technical Memorandum NOS NGS-58 - Guidelines for Establishing GPS-Derived Ellipsoid Heights (Standards 2 cm and 5 cm), version 4.3", November 1997
    4. NOAA Technical Memorandum NOS OES 008 - Tidal Characteristics and Datums of Laguna Madre, Texas

    Special Publications

    1. Special Publication No. 98: Manual of Harmonic Analysis and Prediction of Tides
    2. Special Publication No. 98 Supplement: Computer Application to Tides in the National Ocean Survey
    3. NOAA Special Publication NOS CO-OPS 1 - Tide Datums and Their Applications
    4. NOAA Special Publication NOS CO-OPS 2 - Computational Techniques for Tidal Datums Handbook
    5. NOAA Special Publication NOS CO-OPS 3 - Tidal Analysis and Predictions

    Circulation Survey Reports

    1. 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
    2. NOS Oceanographic Circulatory Survey Report No.2 - Tampa Bay Circulation Survey 1963
    3. NOS Oceanographic Circulatory Survey Report No.3 - Puget Sound Approaches Circulation Survey
    4. NOS Oceanographic Circulatory Survey Report No.4 - Cook Inlet Circulatory Survey: 1973-1975
    5. NOS Oceanographic Circulation Survey Report No.5 - New York Harbor Circulation Survey: 1980-81
    6. NOS Oceanographic Circulation Survey Report No.6 - Southeast Atlantic Coast Estuaries, Sapelo Sound to St. Simons Sounds, Georgia Circulation Survey: 1980
    7. NOS Oceanographic Circulation Survey Report No.7 - San Francisco Bay Area Circulation Survey: 1979-1980
    8. NOS Oceanographic Circulation Survey Report No.8 - Chesapeake Bay Circulation Survey: 1981-1983
    9. NOS Oceanographic Circulation Survey Report No.9 - Delaware River and Bay Circulation Survey: 1984-1985
    10. NOS Oceanographic Circulation Survey Report No.10 - Long Island Sound Oceanography Project: 1988-1990
    11. NOS Oceanographic Circulation Survey Report No.11 - Tampa Bay Oceanography Survey Project: 1990-1991

    Storm Reports

    1. Hurricane Harvey 2017 Water Level and Meteorological Data Report
    2. Hurricane Irma 2017 Water Level and Meteorological Data Report
    3. Hurricane Matthew Water Level and Meteorological Data Report
    4. January 2016 Nor’easter
    5. Storm Events Data Reports
    6. Hurricane Sandy 2012 Water Level and Meteorological Data Report
    7. Hurricane Isaac 2012 Water Level and Meteorological Data Report
    8. Hurricane Irene 2011 Water Level and Meteorological Data Report
    9. Hurricane Ike 2008 Water Levels and Meteorological Report
    10. Hurricane Gustav 2008 Water Levels and Meteorological Report
    11. Tropical Storm Ernesto 2006 Verified Water Level Report
    12. CO-OPS Contribution to NOAA's 2005 Hurricane Season Response
    13. Hurricane Wilma 2005 Preliminary Water Levels Report
    14. Hurricane Rita 2005 Preliminary Water Levels Report
    15. Hurricane Katrina 2005 Preliminary Water Levels Report
    16. Hurricane Dennis 2005 Preliminary Water Levels Report
    17. Hurricane Cindy 2005 Preliminary Water Levels Report
    18. Hurricane Jeanne 2004 Preliminary Water Levels Report
    19. Hurricane Ivan 2004 Preliminary Water Levels Report
    20. Hurricane Frances 2004 Preliminary Water Levels Report
    21. Hurricane Charley 2004 Preliminary Water Levels Report
    22. Hurricane Claudette 2003 Preliminary Water Levels Report
    23. Tropical Storm Bill 2003 Preliminary Water Levels Report
    24. Hurricane Lili 2002 Preliminary Water Levels Report
    25. Tropical Storm Isidore 2002 Preliminary Water Levels Report
    26. NOAA Technical Report NOS CO-OPS 040 - Effects of Hurricane Isabel on Water Levels - Data Report
    27. NOAA Technical Report NOS CO-OPS 027 - Effects of Hurricane Floyd on Water Levels - Data Report

    Great Lakes Reports

    1. Great Lakes - IGLD85 USACE Update No. 76
    2. Great Lakes - Establishment of International Great Lakes Datum (1985)
    3. Great Lakes - Establishment of International Great Lakes Datum (1955)
    4. Great Lakes - History of Water Level Gauges - Upper Great Lakes & the St. Clair Detroit Rivers - Jan 1978
    5. Great Lakes - History of Water Level Gauges - Lower Great Lakes & International Section of St. Lawrence River - Mar 1987

    Great Lake Water Levels Reports

    1. Great Lakes Water Levels 1970
    2. Great Lakes Water Levels 1971
    3. Great Lakes Water Levels 1972
    4. Great Lakes Water Levels 1973
    5. Great Lakes Water Levels 1974
    6. Great Lakes Water Levels 1975
    7. Great Lakes Water Levels 1976
    8. Great Lakes Water Levels 1977
    9. Great Lakes Water Levels 1978
    10. Great Lakes Water Levels 1979
    11. Great Lakes Water Levels 1980
    12. Great Lakes Water Levels 1981
    13. Great Lakes Water Levels 1982
    14. Great Lakes Water Levels 1983
    15. Great Lakes Water Levels 1984
    16. Great Lakes Water Levels 1985
    17. Great Lakes Water Levels 1986
    18. Great Lakes Water Levels 1987
    19. Great Lakes Water Levels 1988
    20. Great Lakes Water Levels 1989
    21. Great Lakes Water Levels 1990
    22. Great Lakes Water Levels 1991
    23. Great Lakes Water Levels 1992
    24. Great Lakes Water Levels 1993
    25. Great Lakes Water Levels 1994
    26. Great Lakes Water Levels 1860-1985
    27. Great Lakes Water Levels 1860-1990

Manuals and Standards


    Data Collection Platform References

    1. Next Generation Water Level Measurement System (NGWLMS) Site Design, Preparation, and Installation Manual (NGWLMS Manual), January 1991

    Sensor References

    1. CO-OPS Sensor Specifications and Measurement Algorithms

    Benchmarks, Leveling and Geodetic References

    1. User’s Guide to Vertical Control and Geodetic Leveling for CO-OPS Observing Systems
    2. Real-Time Kinematic (RTK) Team Final Report

    Office of Coast Survey Standards and Requirements

    1. Standards and Requirements

    References for National Water Level Program

    1. Standing Project Instructions for Coastal and Great Lakes Water Level Stations
    2. FY 2019 Project Instructions for Coastal and Great Lakes Observing Systems
    3. Great Lakes - IGLD85 USACE Update No. 76
    4. Great Lakes - Establishment of International Great Lakes Datum (1985)
    5. Great Lakes - Establishment of International Great Lakes Datum (1955)
    6. Great Lakes - History of Water Level Gauges - Upper Great Lakes & the St. Clair Detroit Rivers - Jan 1978
    7. Great Lakes - History of Water Level Gauges - Lower Great Lakes & International Section of St. Lawrence River - Mar 1987
    8. FY 2017 Station Operational Support Lists

    Communications and Data Formats References

    1. Information Systems Branch PORTS Uniform Flat File Format (PUFFF)
    2. Spatial Data Modifications and Enhancements (v1.2), August 2005
    3. Ocean Systems Test and Evaluation Program Data Communications Plan

    Data Processing and Analysis References

    1. NOAA Special Publication NOS CO-OPS 1 - Tide Datums and Their Applications
    2. NOAA Special Publication NOS CO-OPS 2 - Computational Techniques for Tidal Datums Handbook
    3. 30-1 Manual of Tide Observations
    4. NOAA Technical Memorandum NOS CO-OPS 021 - Tidal Current Analysis Procedures and Associated Computer Programs
    5. Manual of Harmonic Constant Reductions
    6. The National Tidal Datum Convention of 1980
    7. NOAA Technical Report NOS 64 Variability of Tidal Datums and Accuracy in Determining Datums from Short Series of Observations