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    • Water Quality and Molecular Data for Upper Klamath Lake, OR, 2016

    Metadata Updated: November 13, 2025

    Upper Klamath Lake, located in southern Oregon, is a hypereutrophic lake where cyanobacterial blooms, dominated by Aphanizomenon flos-aquae (AFA), occur every summer. The decay of excess biomass after AFA senescence leads to problematic water quality conditions including high pH ( > 9) and anoxia. Water samples from the photic zone and bottom of the water column, and the flocculation layer of the bottom sediments were collected weekly at four sites within Upper Klamath Lake, Oregon during summer 2016. This data release reports the chemical and microbiological analysis of these samples.

    Access & Use Information

    Public: This dataset is intended for public access and use. 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.

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    Dates

    Metadata Created Date September 14, 2025
    Metadata Updated Date November 13, 2025

    Metadata Source

    Harvested from DOI USGS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date September 14, 2025
    Metadata Updated Date November 13, 2025
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/usgs-6378204ed34ed907bf70281e
    Data Last Modified 2025-07-24T00:00:00Z
    Category geospatial
    Public Access Level public
    Bureau Code 010:12
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://ddi.doi.gov/usgs-data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 754ae3e9-6d43-4f66-9019-616f547ba857
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial -122.1062, 42.2153, -121.7491, 42.5035
    Source Datajson Identifier True
    Source Hash 74561084622c368c35e7020d9ca8bcb666ac0b60cbfdb882d22c3f01357b56f7
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -122.1062, 42.2153, -122.1062, 42.5035, -121.7491, 42.5035, -121.7491, 42.2153, -122.1062, 42.2153}

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