gov.noaa.nodc:0171496 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 2026-07-28T13:18:42Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Redox potential (Eh), pH, and other measurements performed in the Lake Hazen, Skeleton Lake and Pond1 from 2014-05-24 to 2015-07-26 (NCEI Accession 0171496) 2018-03-23 publication 2018-03-23 creation International DOI Foundation (IDF) 10.7289/v590222c NOAA National Centers for Environmental Information gov.noaa.nodc:0171496 NCEI Archive Management System 0171496 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 Matti Ruuskanen University of Ottawa matti.ruuskanen@gmail.com http://www.uottawa.ca HTTP University of Ottawa website Institution web page information resourceProvider University of Alberta (U of A) https://www.ualberta.ca/ HTTPS University of Alberta (U of A) website Institution web page information resourceProvider Matti Ruuskanen University of Helsinki matti.ruuskanen@gmail.com pointOfContact Ruuskanen, Matti O. University of Helsinki author St. Pierre, Kyra A. author St. Louis, Vincent L. author Aris-Brosou, Stéphane author Poulain, Alexandre J. author University of Alberta (U of A) https://www.ualberta.ca/ HTTPS University of Alberta (U of A) website Institution web page information contributor tableDigital This dataset consists of measurements of pH, redox potential, H2S and dissolved oxygen from core samples that were taken from Lake Hazen, Skeleton Lake and Pond1 between Spring 2014 and Summer 2015. Redox potential, pH, H2S and dissolved oxygen were recorded with Unisense microsensors directly from the cores. Porewater from duplicate cores from the same sites was analyzed for chloride, nitrate and sulfate at the Elemental Analysis and Stable Isotope Ratio Mass Spectrometry Laboratory (Department of Renewable Resources), University of Alberta with ion chromatography. These data were collected for the manuscript: Physicochemical drivers of sediment microbial community structure in Lake Hazen, Nunavut, Canada (in review, on March-22-2018) Funding Agency: Natural Sciences and Engineering Research Council of Canada 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:0171496 Preview graphic PNG 0171496 NCEI ACCESSION NUMBER 2018-03-22 publication DISSOLVED OXYGEN Hydrogen Sulfide (H2S) NITRATE pH redox potential (Eh) Sulfate (SO4 2-) theme NODC DATA TYPES THESAURUS sediment sampler - corer instrument NODC INSTRUMENT TYPES THESAURUS chemical in situ laboratory analyses theme NODC OBSERVATION TYPES THESAURUS University of Alberta dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS University of Alberta dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PH 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 SEDIMENT CORERS > SEDIMENT CORERS 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 FJAT6J Send2NCEI Submission Package ID accessLevel: public otherRestrictions Cite as: Ruuskanen, Matti O.; St. Pierre, Kyra A.; St. Louis, Vincent L.; Aris-Brosou, Stéphane; Poulain, Alexandre J. (2018). Redox potential (Eh), pH, and other measurements performed in the Lake Hazen, Skeleton Lake and Pond1 from 2014-05-24 to 2015-07-26 (NCEI Accession 0171496). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v590222c. 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 -71.4808 -70.71619 81.80634 81.82968 2014-05-24 2015-07-26 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 0.512 https://doi.org/10.7289/v590222c 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/171496 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/171496 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0118/0171496/ 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 0171496 v1.1 was published. 2018-03-23T22:31:18Z NCEI Accession 0171496 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0171496/1.1 HTTPS NCEI Accession 0171496 v1.1 published 2018-03-23T22:31:18Z download dataset Parameter or Variable: redox potential (Eh) (measured); Units: mV; Observation Category: in situ; Sampling Instrument: Unisense microsensor Parameter or Variable: pH (measured); Units: pH; Observation Category: in situ; Sampling Instrument: Unisense microsensor Parameter or Variable: OXYGEN - DISSOLVED GAS [DISSOLVED OXYGEN] (measured); Units: mg/L; Observation Category: in situ; Sampling Instrument: Unisense microsensor Parameter or Variable: Hydrogen Sulfide (H2S) (measured); Units: micromole/liter; Observation Category: in situ; Sampling Instrument: Unisense microsensor Parameter or Variable: NITRATE (measured); Units: mg/L; Observation Category: laboratory analysis; Sampling Instrument: Dionex Ion chromatography DX 600 Parameter or Variable: chloride (measured); Units: mg/L; Observation Category: laboratory analysis; Sampling Instrument: Dionex Ion chromatography DX 600 Parameter or Variable: Sulfate (SO4 2-) (measured); Units: mg/L; Observation Category: laboratory analysis; Sampling Instrument: Dionex Ion chromatography DX 600 asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian sediment sampler - corer sediment sampler - corer sediment coring device gravity or other coring device used to collect surfacial and near-surficial sediment samples