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Unified Field Study 3 (UFS-3)

Published by National Renewable Energy Laboratory | Department of Energy | Metadata Last Checked: January 27, 2026 | Last Modified: 2024-03-12T18:46:36Z
The Unified Field Studies (UFS), established by the Algae Testbed Public-Private Partnership (ATP3), produced data on the effect of environmental and process conditions on algal growth rates and algal composition. The goal of the third Unified Field Study (UFS-3), performed June to September 2014, was to generate a robust inter-testbed dataset in algal biomass and lipid productivity and yield for two different algal strains (Nannochloropsis oceanica KA32 and Chlorella vulgaris LRB-AZ-1201) as a function of different regional, and environmental conditions among sites by controlling non-geographical-related variables including production systems, production process and protocols, system scale, and algae strain. In UFS-3 we compared the effect on productivity of three harvests per week with multiple dilution rates vs. one harvest per week with one dilution rate using both algal strains. For more information about the UFS experiments see the reference resources 0.0 UFS-1 Experiment OpenEI Wiki Page, 0.1 ATP3 OpenEI Wiki Page, 0.2 Report on the Use of ATP3 UFS Data, and 0.3 ATP3 UFS Journal Article below.

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Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
                                            [
  "019:20"
]
contactPoint 
                                            {
  "fn": "ATP3 Information",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:ed.wolfrum@nrel.gov"
}
dataQuality 
                                            true
description The Unified Field Studies (UFS), established by the Algae Testbed Public-Private Partnership (ATP3), produced data on the effect of environmental and process conditions on algal growth rates and algal composition. The goal of the third Unified Field Study (UFS-3), performed June to September 2014, was to generate a robust inter-testbed dataset in algal biomass and lipid productivity and yield for two different algal strains (Nannochloropsis oceanica KA32 and Chlorella vulgaris LRB-AZ-1201) as a function of different regional, and environmental conditions among sites by controlling non-geographical-related variables including production systems, production process and protocols, system scale, and algae strain. In UFS-3 we compared the effect on productivity of three harvests per week with multiple dilution rates vs. one harvest per week with one dilution rate using both algal strains. For more information about the UFS experiments see the reference resources 0.0 UFS-1 Experiment OpenEI Wiki Page, 0.1 ATP3 OpenEI Wiki Page, 0.2 Report on the Use of ATP3 UFS Data, and 0.3 ATP3 UFS Journal Article below.
distribution 
                                            [
  {
    "@type": "dcat:Distribution",
    "title": "0.3 ATP3 UFS Journal Article",
    "format": "267",
    "accessURL": "https://doi.org/10.1038/sdata.2018.267",
    "mediaType": "application/octet-stream",
    "description": "Journal article about the UFS studies providing detailed information about the experimental design, methods, and data collected."
  },
  {
    "@type": "dcat:Distribution",
    "title": "0.2 Report on the Use of ATP3 UFS Data",
    "format": "HTML",
    "accessURL": "https://doi.org/10.2172/1330992",
    "mediaType": "text/html",
    "description": "Official report providing information on the use of the cultivation data from the ATP3 UFS experiments. "
  },
  {
    "@type": "dcat:Distribution",
    "title": "0.1 ATP3 OpenEI Wiki Page",
    "format": "HTML",
    "accessURL": "https://openei.org/wiki/ATP3",
    "mediaType": "text/html",
    "description": "ATP3 OpenEI Wiki page providing information about the Algae Testbed Public-Private Partnership Consortium and the Unified Field Study Data. "
  },
  {
    "@type": "dcat:Distribution",
    "title": "0.0 UFS-3 Experiment OpenEI Wiki Page",
    "format": "HTML",
    "accessURL": "https://openei.org/wiki/UFS-3_Results",
    "mediaType": "text/html",
    "description": "OpenEI Wiki page detailing the UFS-3 experiment, including experimental protocols and descriptions of each data resource."
  },
  {
    "@type": "dcat:Distribution",
    "title": "4.1 Weather Data Definitions.pdf",
    "format": "pdf",
    "mediaType": "application/pdf",
    "description": "Definition of terms and units for the  Weather Data provided in 4.2 and 4.3. ",
    "downloadURL": "https://data.openei.org/files/694/weatherdatadefinitions.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "5.1 Compositional Data Definitions.pdf",
    "format": "pdf",
    "mediaType": "application/pdf",
    "description": "Definition of terms and units for the Compositional Data provided in 5.2.",
    "downloadURL": "https://data.openei.org/files/694/compositionaldatadefinitions.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "3.4 Daily Averaged Instrumentation Data Definitions.pdf",
    "format": "pdf",
    "mediaType": "application/pdf",
    "description": "Definition of terms and units for the Daily Averaged Instrumentation Data provided in 3.5 and 3.6. ",
    "downloadURL": "https://data.openei.org/files/694/instrumentationaveragedatadefinitions.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "4.4 Daily Averaged Weather Data Definitions.pdf",
    "format": "pdf",
    "mediaType": "application/pdf",
    "description": "Definition of terms and units for the Daily Averaged Weather Data provided in 4.5 and 4.6. ",
    "downloadURL": "https://data.openei.org/files/694/weatherdailyaveragedatadefinitions.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "2.1 Harvest Data Definitions.pdf",
    "format": "pdf",
    "mediaType": "application/pdf",
    "description": "Definition of terms and units for the Harvest Data provided in 2.2 and 2.3. ",
    "downloadURL": "https://data.openei.org/files/694/harvestdatadefinitions.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "3.1 Instrumentation Data Definitions.pdf",
    "format": "pdf",
    "mediaType": "application/pdf",
    "description": "Definition of terms and units for the Instrumentation Data provided in 3.2 and 3.3. ",
    "downloadURL": "https://data.openei.org/files/694/instrumentationdatadefinitions.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "1.1 Pond Operation and Harvest Summary Data Definitions.pdf",
    "format": "pdf",
    "mediaType": "application/pdf",
    "description": "Definition of terms and units for the Pond Operation Data provided in 1.2 and 1.3.",
    "downloadURL": "https://data.openei.org/files/694/pondoperationandharvestsummarydatadefinitions.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "5.2 UFS-3 Compositional Analysis Data.csv",
    "format": "csv",
    "mediaType": "text/csv",
    "description": "The data include the lipid (FAMELipids.AF), protein (Protein.AF) and carbohydrate (Carbohydrates.AF) content of biomass harvested from the ponds throughout the cultivation experiment and immediately freeze-dried. All data presented here are averaged over technical replicates and expressed as percent (%) on an ash-free dry weight basis of harvested biomass. Some data points are missing due to either data not meeting the rigorous QC requirements or experimental errors during data collection. ",
    "downloadURL": "https://data.openei.org/files/694/atp3ufs3composition.csv"
  },
  {
    "@type": "dcat:Distribution",
    "title": "4.6 UFS-3 LRB-AZ-1201 Daily Averaged Weather Data.csv",
    "format": "csv",
    "mediaType": "text/csv",
    "description": "These data include air temperature (C), relative humidity (%RH), Global Light Intensity (W/m2/s), daily precipitation (cm), wind speed (km/hr), and wind direction (degrees).",
    "downloadURL": "https://data.openei.org/files/694/weather.daily.jul252014.lrbaz1201.csv"
  },
  {
    "@type": "dcat:Distribution",
    "title": "4.2 UFS-3 KA32 Complete KA32 Weather Data.csv",
    "format": "csv",
    "mediaType": "text/csv",
    "description": "These data include air temperature (C), relative humidity (%RH), Global Light Intensity (W/m2/s), daily precipitation (cm), wind speed (km/hr), and wind direction (degrees).",
    "downloadURL": "https://data.openei.org/files/694/weather.daily.jun112014.ka32.csv"
  },
  {
    "@type": "dcat:Distribution",
    "title": "4.5 UFS-3 K32 Daily Averaged Weather Data.csv",
    "format": "csv",
    "mediaType": "text/csv",
    "description": "These data include air temperature (C), relative humidity (%RH), Global Light Intensity (W/m2/s), daily precipitation (cm), wind speed (km/hr), and wind direction (degrees).",
    "downloadURL": "https://data.openei.org/files/694/weather.daily.jun112014.ka32_2.csv"
  },
  {
    "@type": "dcat:Distribution",
    "title": "4.3 UFS-3 LRB-AZ-1201 Complete Weather Data.csv",
    "format": "csv",
    "mediaType": "text/csv",
    "description": "These data include air temperature (C), relative humidity (%RH), Global Light Intensity (W/m2/s), daily precipitation (cm), wind speed (km/hr), and wind direction (degrees).",
    "downloadURL": "https://data.openei.org/files/694/weather.jul252014.lrbaz1201.csv"
  },
  {
    "@type": "dcat:Distribution",
    "title": "2.3 UFS-3 LRB-AZ-1201 Harvest Data.csv",
    "format": "csv",
    "mediaType": "text/csv",
    "description": "These data include date, strain, batch and source ID, pond treatment, and depth (cm). Harvest data include harvest number, time between harvests, harvest volume (L), amount harvested (g), ash-free dry weight (AFDW; g L−1) at the time of harvest, and an indication of a pond crash. ",
    "downloadURL": "https://data.openei.org/files/694/harvestdata.jul252014.lrbaz1201.csv"
  },
  {
    "@type": "dcat:Distribution",
    "title": "2.2 UFS-3 KA32 Harvest Data.csv",
    "format": "csv",
    "mediaType": "text/csv",
    "description": "These data include date, strain, batch and source ID, pond treatment, and depth (cm). Harvest data include harvest number, time between harvests, harvest volume (L), amount harvested (g), ash-free dry weight (AFDW; g L−1) at the time of harvest, and an indication of a pond crash. ",
    "downloadURL": "https://data.openei.org/files/694/harvestdata.jun112014.ka32.csv"
  },
  {
    "@type": "dcat:Distribution",
    "title": "1.3 UFS-3 LRB-AZ-1201 Pond Operation and Harvest Summary Data.csv",
    "format": "csv",
    "mediaType": "text/csv",
    "description": "These data include the date, strain, batch and source ID, pond treatment and depth (cm), harvest number and time between harvests, harvest volume (L), amount (g), ash-free dry weight (AFDW; g/L) at the time of harvest, and an indication of a pond crash, operator comments, measured pond depth (cm), pH, salinity, pond water temperature (C), nitrogen concentration (ppm as N), phosphorus concentration (ppm as P), N:P ratio (molar), the sample ID and tracking ID of a physical sample (if taken), the algae concentration (g/L) as dry weight and ash-free dry weight (AFDW), the ash content of the algal biomass (%), and the optical density at 680nm and 750nm (OD750). Also supplied are calculated metrics of evaporation rate (cm/day), total N (NO3 or NH4) supplied (g), total N utilized (g), N efficiency (%), N demand (g N/g AFDW), total P supplied (g), total P utilized (g), P efficiency (%), P demand (g P/g AFDW), photosynthetic biomass production (mg AFDW/mol PAR (photosynthetically active radiation) input and mg AFDW/kW GLE (global light energy) input).",
    "downloadURL": "https://data.openei.org/files/694/summary.combined.jul252014.lrbaz1201.csv"
  },
  {
    "@type": "dcat:Distribution",
    "title": "1.2 UFS-3 KA32 Pond Operation and Harvest Summary Data.csv",
    "format": "csv",
    "mediaType": "text/csv",
    "description": "These data include the date, strain, batch and source ID, pond treatment and depth (cm), harvest number and time between harvests, harvest volume (L), amount (g), ash-free dry weight (AFDW; g/L) at the time of harvest, and an indication of a pond crash, operator comments, measured pond depth (cm), pH, salinity, pond water temperature (C), nitrogen concentration (ppm as N), phosphorus concentration (ppm as P), N:P ratio (molar), the sample ID and tracking ID of a physical sample (if taken), the algae concentration (g/L) as dry weight and ash-free dry weight (AFDW), the ash content of the algal biomass (%), and the optical density at 680nm and 750nm (OD750). Also supplied are calculated metrics of evaporation rate (cm/day), total N (NO3 or NH4) supplied (g), total N utilized (g), N efficiency (%), N demand (g N/g AFDW), total P supplied (g), total P utilized (g), P efficiency (%), P demand (g P/g AFDW), photosynthetic biomass production (mg AFDW/mol PAR (photosynthetically active radiation) input and mg AFDW/kW GLE (global light energy) input).",
    "downloadURL": "https://data.openei.org/files/694/summary.combined.jun112014.ka32.csv"
  },
  {
    "@type": "dcat:Distribution",
    "title": "3.6 UFS-3 LRB-AZ-1201 Daily Averaged Instrumentation Data.csv",
    "format": "csv",
    "mediaType": "text/csv",
    "description": "These data include the pH, oxidation-reduction potention (ORP, mv), pond water temperature (C), pond conductivity (ms.cm), dissolved oxygen concentration (DO, mg/L), dissolved oxygen saturation (%), salinity (g/L), and photosynthetically active radiation (PAR, umol/m2/s). The PAR sensor was connected to only one of the ponds.",
    "downloadURL": "https://data.openei.org/files/694/instrumentation.daily.jul252014.lrbaz1201.csv"
  },
  {
    "@type": "dcat:Distribution",
    "title": "3.5 UFS-3 K32 Daily Averaged Instrumentation Data.csv",
    "format": "csv",
    "mediaType": "text/csv",
    "description": "These data include the pH, oxidation-reduction potention (ORP, mv), pond water temperature (C), pond conductivity (ms.cm), dissolved oxygen concentration (DO, mg/L), dissolved oxygen saturation (%), salinity (g/L), and photosynthetically active radiation (PAR, umol/m2/s). The PAR sensor was connected to only one of the ponds.",
    "downloadURL": "https://data.openei.org/files/694/instrumentation.daily.jun112014.ka32.csv"
  },
  {
    "@type": "dcat:Distribution",
    "title": "3.3 UFS-3 LRB-AZ-1201 Instrumentation Data.csv",
    "format": "csv",
    "mediaType": "text/csv",
    "description": "These data include the pH, oxidation-reduction potention (ORP, mv), pond water temperature (C), pond conductivity (ms.cm), dissolved oxygen concentration (DO, mg/L), dissolved oxygen saturation (%), salinity (g/L), and photosynthetically active radiation (PAR, umol/m2/s). The PAR sensor was connected to only one of the ponds.",
    "downloadURL": "https://data.openei.org/files/694/instrumentation.jul252014.lrbaz1201.csv"
  },
  {
    "@type": "dcat:Distribution",
    "title": "3.2 UFS-3 K32 Instrumentation Data.csv",
    "format": "csv",
    "mediaType": "text/csv",
    "description": "These data include the pH, oxidation-reduction potention (ORP, mv), pond water temperature (C), pond conductivity (ms.cm), dissolved oxygen concentration (DO, mg/L), dissolved oxygen saturation (%), salinity (g/L), and photosynthetically active radiation (PAR, umol/m2/s). The PAR sensor was connected to only one of the ponds.",
    "downloadURL": "https://data.openei.org/files/694/instrumentation.jun112014.ka32.csv"
  }
]
identifier https://data.openei.org/submissions/694
issued 2016-09-29T06:00:00Z
keyword 
                                            [
  "Chlorella vulgaris",
  "Nannochloropsis oceanica",
  "UFS",
  "Unified Field Study",
  "algae",
  "algal biomass",
  "algal composition",
  "algal growth",
  "algal productivities",
  "algal testbed",
  "analysis",
  "atp3",
  "biochemical",
  "bioenergy",
  "biofuel",
  "biomass",
  "cultivation strategies",
  "cultivation trials",
  "data",
  "energy",
  "environmental conditions",
  "fuels",
  "harvest yields",
  "modeling",
  "pond",
  "ponds",
  "power",
  "process conditions",
  "regional",
  "renewable energy",
  "seasonal",
  "strain",
  "testbed"
]
landingPage https://data.openei.org/submissions/694
license https://creativecommons.org/licenses/by/4.0/
modified 2024-03-12T18:46:36Z
programCode 
                                            [
  "019:005"
]
projectNumber EE0005996
projectTitle Algae Testbed Public-Private Partnership ATP3 - a RAFT Partnership
publisher 
                                            {
  "name": "National Renewable Energy Laboratory",
  "@type": "org:Organization"
}
spatial 
                                            "{"type":"Polygon","coordinates":[[[-125.4514,24.5873],[-66.5318,24.5873],[-66.5318,49.2637],[-125.4514,49.2637],[-125.4514,24.5873]]]}"
title Unified Field Study 3 (UFS-3)

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