Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content
  • Feedback

    • Physical, chemical, and biological water quality monitoring data to support detection of Harmful Algal Blooms (HABs) in Saginaw Bay, Lake Huron, Great Lakes collected by the Great Lakes Environmental Research Laboratory and the Cooperative Institute for Great Lakes Research since 2012

    Metadata Updated: October 2, 2025

    Blooms of nuisance and toxic cyanobacteria, referred to as cyanobacteria harmful algal blooms (cHABs), occur seasonally in Saginaw Bay, Lake Huron, and pose a threat to human health, affect the quality of life, and significantly degrade the ecosystem. NOAA Great Lakes Environmental Research Laboratory and the Cooperative Institute for Great Lakes Research (CIGLR), University of Michigan, started regular water quality monitoring of Saginaw Bay, Lake Huron in 2012. Since that time the monitoring effort has expanded to incorporate additional parameters and sample locations. Physical, chemical, and biological water quality data were collected during repeated sampling trips to a set of stations before, during, and after HAB events (from May - October). Data for these discrete sampling events include: Secchi disk depth, Conductivity, Temperature and Depth (CTD), CTD specific conductivity, CTD beam attenuation, CTD beam transmission, CTD dissolved oxygen, CTD photosynthetically active radiation, turbidity, particulate microcystin, dissolved microcystin, extracted phycocyanin, extracted chlorophyll-a, total phosphorus, total dissolved phosphorus, soluble reactive phosphorus, ammonia, nitrate + nitrite, urea, particulate organic carbon, particulate organic nitrogen, dissolved organic carbon, chromophoric dissolved organic material absorbance at 400 nm, total suspended solids, and volatile suspended solids. The bulk water quality parameters were analyzed via established techniques and procedures for routine water quality monitoring and analysis (APHA 1992, 1998, 2017).

    This research was funded by the Great Lakes Restoration Initiative (GLRI) to support the projects “Decision Support Tools to Link Predictions to HABs and Source Water Protection”, Synthesis Observation and Response (SOAR), and Real-time Environmental Coastal Observation Network (ReCON).

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Date 2025-09-26T19:01:54Z
    Metadata Created Date March 17, 2023
    Metadata Updated Date October 2, 2025
    Reference Date(s) May 24, 2019 (publication), December 19, 2024 (revision)
    Frequency Of Update annually

    Metadata Source

    Harvested from NOAA/NESDIS/ncei/accessions

    Other Data Resources

    Graphic Preview

    Preview graphic

    Additional Metadata

    Resource Type Series
    Metadata Date 2025-09-26T19:01:54Z
    Metadata Created Date March 17, 2023
    Metadata Updated Date October 2, 2025
    Reference Date(s) May 24, 2019 (publication), December 19, 2024 (revision)
    Responsible Party (Point of Contact)
    Contact Email
    Guid gov.noaa.nodc:GLERL-CIGLR-HAB-SagBay-water-qual
    Access Constraints Cite as: Cooperative Institute for Great Lakes Research University of Michigan; NOAA Great Lakes Environmental Research Laboratory (2019). Physical, chemical, and biological water quality monitoring data to support detection of Harmful Algal Blooms (HABs) in Saginaw Bay, Lake Huron, Great Lakes collected by the Great Lakes Environmental Research Laboratory and the Cooperative Institute for Great Lakes Research since 2012. [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/djzk-yz34. Accessed [date]., Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
    Bbox East Long -83
    Bbox North Lat 44.3
    Bbox South Lat 43.5
    Bbox West Long -83.9087
    Coupled Resource
    Frequency Of Update annually
    Graphic Preview Description Preview graphic
    Graphic Preview File https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:GLERL-CIGLR-HAB-SagBay-water-qual
    Graphic Preview Type PNG
    Harvest Object Id 925f7ace-b2ee-45ec-b93f-21f13186fddd
    Harvest Source Id c084a438-6f6b-470d-93e0-16aeddb9f513
    Harvest Source Title NOAA/NESDIS/ncei/accessions
    Licence accessLevel: Public
    Lineage
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-83.9087, 43.5], [-83.0, 43.5], [-83.0, 44.3], [-83.9087, 44.3], [-83.9087, 43.5]]]}
    Progress onGoing
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2012-06-07

    Didn't find what you're looking for? Suggest a dataset here.