Forest Ecosystem Monitoring Cooperative

Global Evaluation of the Impacts of Storms on freshwater Habitat and Structure of phytoplankton Assemblages (GEISHA): Cheney Raw High-Frequency Lake Data

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  • Forest Ecosystem Monitoring Cooperative

    • Address:
      705 Spear Street
      South Burlington, Vermont 05403
      United States of America

      Phone: (802) 391-4135


    The Global Evaluation of the Impacts of Storms on freshwater Habitat and Structure of phytoplankton Assemblages (GEISHA) project is using long-term monitoring datasets and high-frequency data available through international networks to address questions about the impacts of storms on phytoplankton community in over 40 lakes across the globe. GEISHA has been developed within the context of the Global Lake Ecological Observatory Network (GLEON) initiative called “Storm-blitz”. “Storm-blitz” assembles an international group of investigators interested in contributing to theoretical discussions and sharing data to answer questions about the impacts of extreme events on phytoplankton communities. Although climate change is expected to cause more intense and frequent extreme weather events, we only have a basic understanding of how these events might alter freshwater phytoplankton communities. The storm-blitz group was created in 2016 and gathers 17 researchers with diverse skillsets and experiences to focus on data compilation and analysis (


  • Jason Stockwell: Principal Investigator

  • Orlane Anneville: Principal Investigator

  • Vijay Patil: Principal Investigator

  • Michael Vanni: Content Provider

  • Tanner Williamson: Content Provider

  • Emily Nodine: Content Provider

  • Jennifer Graham: Content Provider

  • GEISHA Core: Content Provider

  • Jennie Brentrup: Content Provider

  • Gaël Dur: Content Provider

  • Sami Souissi: Content Provider

  • François Schmitt: Content Provider

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  • Elvira de Eyto: Content Provider

  • David de Motta Marques: Content Provider

  • Lisette de Senerpont-Domis: Content Provider

  • Isabelle Domaizon: Content Provider

  • Jonathan Doubek: Content Provider

  • Claudia Dresti: Content Provider

  • Werner Eckert: Content Provider

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  • buoy, dissolved oxygen, geisha, high-frequency, lakes, water temperature,


  • Centre for the Synthesis and Analysis of Biodiversity : funder
  • John Wesley Powell Center for Analysis and Synthesis : funder

Geographic Coverage

  • Coordinates

    Data Table

    • Title: Cheney Raw High-Frequency Lake Data
    • Start Date: 2001-04-03
    • End Date: 2016-10-01
    • Description: Raw high-frequency lake data (water temperature, dissolved oxygen, dissolved oxygen percent, chlorophyll a, phycocyanin, and pH) from Cheney Reservoir at station ID 7144790 at 1.55-m depth. Original data were collected at 60-minute intervals. The buoy was deployed year-round, 2001-2016.

    • Purpose: Please see GEISHA Project home page on FEMC website at or see the GEISHA website hosted by INRAE at

    • Condensed Title: Z1561_3329_EM0EM2

    • Object Name: VMC.1561.3329

    • Data Type: mySQL
    • Citation: Stockwell JD, Brentrup JA, Doubek JP, Graham J (2020) Cheney Reservoir raw high-frequency lake data, 2001-2016. Global Evaluation of the Impacts of Storms on freshwater Habitat and structure of phytoplankton Assemblages (GEISHA) Working Group, FRB Centre for the Synthesis and Analysis of Biodiversity and USGS John Wesley Powell Center. Available online at:

    • Online Distribution:

    Attribute List

      Attribute Name: lake
      • Label: lake
      • Description: Lake Name
      • Storage Type: text
      • Measurment Type: nominal
      Attribute Name: stationid
      • Label: stationid
      • Description: Unique ID for location of sampling; could be more than one per lake
      • Storage Type: int
      • Measurment Type: nominal
      Attribute Name: depth_m
      • Label: depth_m
      • Storage Type: decimal
      Attribute Name: date_time_yyyy_mm_dd_hh_mm_ss
      • Label: date_time_yyyy_mm_dd_hh_mm_ss
      • Description: Date time
      • Storage Type: datetime
      • Measurment Type: datetime
      • String Format: YYYY-MM-DD hh:mm:ss
      Attribute Name: water_temperature_c
      • Label: water_temperature_c
      • Description: Water temperature in degrees Celsius
      • Storage Type: decimal
      • Measurment Type: ratio
      • Unit: degree Celsius
      Attribute Name: dissolved_oxygen_mg_l
      • Label: dissolved_oxygen_mg_l
      • Description: Dissolved oxygen concentration in milligrams per liter
      • Storage Type: decimal
      • Measurment Type: ratio
      • Unit: milligrams per liter
      Attribute Name: dissolved_oxygen_perc
      • Label: dissolved_oxygen_perc
      • Description: Dissolved oxygen in percent saturation
      • Storage Type: decimal
      • Measurment Type: ratio
      • Unit: percent
      Attribute Name: chla_fluorescence_ug_l
      • Label: chla_fluorescence_ug_l
      • Description: Chlorophyll fluorescence in micrograms per liter
      • Storage Type: decimal
      • Measurment Type: ratio
      • Unit: micrograms per liter
      Attribute Name: phyco_fluorescence_ug_l
      • Label: phyco_fluorescence_ug_l
      • Description: Phycocyanin fluorescence in micrograms per liter
      • Storage Type: decimal
      • Measurment Type: ratio
      • Unit: micrograms per liter
      Attribute Name: ph
      • Label: ph
      • Description: pH
      • Storage Type: decimal
      • Measurment Type: ratio
        • Bounds:
        • Minimum: 0
        • Maximum: 14


    • No methods recorded for this dataset

    Sampling Equipment

    • No sampling equipment recorded for this dataset

    Site Characteristics

    • Site Description: Cheney Reservoir

    • Minimum Altitude: 433 meters