gov.noaa.nodc:0251826 eng utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NOAA Contact Information Information for contacts at NCEI. information custodian 2026-01-23T16:33:10Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Lake Pontchartrain Beach Harmful Algal Bloom Monitoring from May to September 2020 (NCEI Accession 0251826) 2022-04-20 publication 2022-04-13 creation NOAA National Centers for Environmental Information gov.noaa.nodc:0251826 NCEI Archive Management System 0251826 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information publisher US Army/Corps of Engineers (USACE) resourceProvider Jonathan Jackson NOAA National Centers for Environmental Information (NCEI) Jonathan.Jackson@noaa.gov resourceProvider Eric Glisch US Army/Corps of Engineers (USACE) eric.J.Glisch@usace.army.mil principalInvestigator Glisch, Eric US Army Corps of Engineers author US Army/Corps of Engineers (USACE) contributor tableDigital Water quality data was collected by the United States Army Corp of Engineers at numerous locations along the shore of Lake Ponchartrain and the Tangipahoa River in Louisiana from May to September 2020. The samples were collected repeatedly at 6 locations. The parameters collected include ammonia, phosphorus, chlorophyll, phycocyanin, microcystin, silica, water temperature, dissolved oxygen, dissolved oxygen percent saturation, depth, pH, total dissolved solids, total organic content, salinity, specific conductance, and plankton cell counts. These data were used to monitor the water quality of commonly used beaches and swimming areas. These data are in spreadsheet format. Algal bloom monitoring in beaches and swimming areas commonly used around Lake Pontchartrain Funding Agency: US Army Corps of Engineers completed historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0251826 Preview graphic PNG 0251826 NCEI ACCESSION NUMBER 2022-04-12 publication ALGAL BLOOM PRESENCE bacteria - cyanobacteria CARBON - TOTAL ORGANIC CHLOROPHYLL DEPTH - OBSERVATION DISSOLVED OXYGEN LATITUDE LONGITUDE NITROGEN OXYGEN - PERCENT SATURATION pH SALINITY Secchi depth silica WATER TEMPERATURE theme NODC DATA TYPES THESAURUS barometer GPS multi-parameter water quality sensor Secchi disk thermometer instrument NODC INSTRUMENT TYPES THESAURUS in situ laboratory analyses theme NODC OBSERVATION TYPES THESAURUS US Army/Corps of Engineers dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS US Army/Corps of Engineers dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Coastal Waters of Gulf of Mexico Coastal Waters of Louisiana Gulf of Mexico North Atlantic Ocean place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > BACTERIA/ARCHAEA > CYANOBACTERIA (BLUE-GREEN ALGAE) EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITROGEN EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC CARBON EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PH EARTH SCIENCE > OCEANS > OCEAN OPTICS > SECCHI DEPTH EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY EARTH SCIENCE > OCEANS > WATER QUALITY > ALGAL BLOOMS > HARMFUL ALGAL BLOOM (HABs) theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Ammonia as Nitrogen Barometer Cell Count Aphanizomenon Cell Count Chroococcus Cell Count Chroococcus microscopicus Cell Count Cuspidothrix Cell Count Cyanodictyon Cell Count Cylindrospermopsis Cell Count Dolichospermum Cell Count Eucapsis Cell Count Komvophoron Cell Count Lyngbya Cell Count Merismopedia Cell Count Merismopedia tenuissima Cell Count Microcystis Cell Count Microcystis Aeruginosa Cell Count Microcystis cf. aeruginosa Cell Count Myxobaktron Cell Count Phormidesmis Cell Count Phormidium Cell Count Planktolyngbya Cell Count Planktothrix Cell Count Pseudanabeana Cell Count Pseudanabeana limnetica Cell Count Pseudanabeana minima Cell Count Raphidiopsis Cell Count all Cyanobacteria taxa Cell Count cf. Aphanocapsa Cell Count cf. Microcystis Cell Count cf. Planktolyngbya Cell Count cf. Planktothrix Cell Density Aphanizomenon Cell Density Chroococcus Cell Density Chroococcus microscopicus Cell Density Cuspidothrix Cell Density Cyanodictyon Cell Density Cylindrospermopsis Cell Density Dolichospermum Cell Density Eucapsis Cell Density Komvophoron Cell Density Lyngbya Cell Density Merismopedia Cell Density Microcystis Cell Density Microcystis aeruginosa Cell Density Microcystis cf. aeruginosa Cell Density Myxobaktron Cell Density Phormidesmis Cell Density Phormidium Cell Density Planktolyngbya Cell Density Planktothrix Cell Density Pseudabeana Cell Density Pseudanabeana limnetica Cell Density Pseudanabeana minima Cell Density Raphidiopsis Cell Density all cyanobacteria taxa Cell Density cf. Aphanocapsa Cell Density cf. Microcystis Cell Density cf. Planktolyngbya Cell Density cf. Planktothrix HAB Microcystins Nitrate + Nitrite as Nitrogen Orthophosphate as phosphorus Percent Saturation Secchi Disk Silica as SiO2 Specific Conductance TDS TOC blue green algae harmful algal bloom microcystin phycocyanin theme Provider Keywords BAROMETERS > BAROMETERS GPS RECEIVERS > GPS RECEIVERS SECCHI DISKS > SECCHI DISKS THERMOMETERS > THERMOMETERS instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO place Global Change Master Directory (GCMD) Location Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Lake Pontchartrain Tangipahoa River place Provider Place Names 32L7H3 Send2NCEI Submission Package ID accessLevel: public otherRestrictions Cite as: Glisch, Eric (2022). Lake Pontchartrain Beach Harmful Algal Bloom Monitoring from May to September 2020 (NCEI Accession 0251826). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0251826. Accessed [date]. Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions 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. eng; USA utf8 environment oceans biota -90.3348333 -89.835875 30.027422 30.44369444 2020-05-06 2020-09-29 NOAA National Centers for Environmental Information +1-301-713-3277 ncei.info@noaa.gov pointOfContact In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. Originator data format 1521.9 https://www.ncei.noaa.gov/archive/accession/0251826 HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/oas/251826 HTTPS Web browser Descriptive Information Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/download/251826 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0200/0251826/ FTP Any FTP client FTP These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP). download dataset NCEI Accession 0251826 v1.1 was published. 2022-04-20T20:22:53Z NCEI Accession 0251826 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0251826/1.1 HTTPS NCEI Accession 0251826 v1.1 published 2022-04-20T20:22:53Z download dataset Parameter or Variable: LATITUDE (measured); Units: DD.DDDDD; Observation Category: in situ; Sampling Instrument: GPS Parameter or Variable: LONGITUDE (measured); Units: DD.DDDDD; Observation Category: in situ; Sampling Instrument: GPS Parameter or Variable: DEPTH - OBSERVATION (measured); Units: feet; Observation Category: in situ; Sampling Instrument: depth probe Parameter or Variable: Barometer (measured); Units: mm Hg; Observation Category: in situ; Sampling Instrument: barometer Parameter or Variable: WATER TEMPERATURE (measured); Units: degrees C; Observation Category: in situ; Sampling Instrument: thermometer Parameter or Variable: SALINITY (measured); Units: ppt; Observation Category: in situ; Sampling Instrument: YSI - handheld multi-parameter instrument Parameter or Variable: Specific Conductance (measured); Units: microSeimens per meter; Observation Category: in situ; Sampling Instrument: YSI - handheld multi-parameter instrument Parameter or Variable: pH (measured); Units: atmosphere; Observation Category: in situ; Sampling Instrument: YSI - handheld multi-parameter instrument Parameter or Variable: DISSOLVED OXYGEN (measured); Units: milligrams per liter; Observation Category: in situ; Sampling Instrument: YSI - handheld multi-parameter instrument Parameter or Variable: Percent Saturation (measured); Units: percent; Observation Category: in situ; Sampling Instrument: YSI - handheld multi-parameter instrument Parameter or Variable: Secchi Disk (measured); Units: acre feet; Observation Category: in situ; Sampling Instrument: Secchi disk Parameter or Variable: TDS (measured); Units: milligrams per liter; Observation Category: in situ; Sampling Instrument: N/A Parameter or Variable: TOC (measured); Units: milligrams per liter; Observation Category: in situ; Sampling Instrument: N/A Parameter or Variable: Ammonia as Nitrogen (measured); Units: milligrams per liter; Observation Category: in situ; Sampling Instrument: N/A Parameter or Variable: Nitrate + Nitrite as Nitrogen (measured); Units: milligrams per liter; Observation Category: in situ; Sampling Instrument: N/A Parameter or Variable: Orthophosphate as phosphorus (measured); Units: milligrams per liter; Observation Category: in situ; Sampling Instrument: N/A Parameter or Variable: Silica as SiO2 (measured); Units: milligrams per liter; Observation Category: in situ; Sampling Instrument: N/A Parameter or Variable: Chlorophyll (measured); Units: milligrams per liter; Observation Category: in situ; Sampling Instrument: N/A Parameter or Variable: Phycocyanin (measured); Units: micrograms per liter -1; Observation Category: in situ; Sampling Instrument: N/A Parameter or Variable: Microcystins (measured); Units: micrograms per liter; Observation Category: in situ; Sampling Instrument: N/A Parameter or Variable: Cell Count all Cyanobacteria taxa (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density all cyanobacteria taxa (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count Aphanizomenon (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density Aphanizomenon (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count cf. Aphanocapsa (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density cf. Aphanocapsa (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count cf. Microcystis (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density cf. Microcystis (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count cf. Planktolyngbya (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density cf. Planktolyngbya (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count cf. Planktothrix (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density cf. Planktothrix (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count Chroococcus (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density Chroococcus (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count Chroococcus microscopicus (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density Chroococcus microscopicus (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count Cuspidothrix (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density Cuspidothrix (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count Cyanodictyon (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density Cyanodictyon (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count Cylindrospermopsis (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density Cylindrospermopsis (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count Dolichospermum (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density Dolichospermum (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count Eucapsis (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density Eucapsis (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count Komvophoron (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density Komvophoron (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count Lyngbya (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density Lyngbya (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count Merismopedia (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density Merismopedia (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count Merismopedia tenuissima (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count Merismopedia tenuissima (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count Microcystis (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density Microcystis (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count Microcystis Aeruginosa (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density Microcystis aeruginosa (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count Microcystis cf. aeruginosa (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density Microcystis cf. aeruginosa (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count Myxobaktron (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density Myxobaktron (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count Phormidesmis (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density Phormidesmis (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count Phormidium (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density Phormidium (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count Planktolyngbya (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density Planktolyngbya (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count Planktothrix (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density Planktothrix (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count Pseudanabeana (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density Pseudabeana (calculated); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count Pseudanabeana limnetica (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density Pseudanabeana limnetica (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count Pseudanabeana minima (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density Pseudanabeana minima (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Count Raphidiopsis (measured); Units: count; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: Cell Density Raphidiopsis (calculated); Units: cells per milliliter; Observation Category: laboratory analysis; Sampling Instrument: N/A asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian barometer barometer Barometers are instruments for measuring atmospheric pressure; two types include mercury barometers and aneroid barometers. GPS GPS Global Positioning System receiver satellite-based instrument used for geo-location, positioning and navigation multi-parameter water quality sensor multi-parameter water quality sensor used to measure temperature, salinity, dissolved oxygen, and other parameters Instrument used to measure temperature, salinity, dissolved oxygen, and other parameters, often used to measure water quality parameters. Can be a hand-held instrument or a sonde for unattended monitoring. Often used in coastal water monitoring stations. YSI is the preeminent brand (as of 2024). Secchi disk Secchi disk The Secchi disk (or Secchi disc), as created in 1865 by Angelo Secchi, is a plain white, circular disk 30 cm (12 in) in diameter used to measure water transparency or turbidity in bodies of water. The disc is mounted on a pole or line, and lowered slowly down in the water. The depth at which the disk is no longer visible is taken as a measure of the transparency of the water. This measure is known as the Secchi depth and is related to water turbidity. [Wikipedia, 2021-09-02] thermometer thermometer generic thermometer or reversing thermometer use thermometer when temperature is a data type, but the exact instrument used to measure temperature is unknown