• Address:
  705 Spear Street
  South Burlington, Vermont 05403
  United States of America
  
  Phone: (802) 391-4135
  Email: femc@uvm.edu
  Website: www.uvm.edu/femc

High-frequency monitoring of weather and water quality metrics at Shelburne Pond, Vermont, USA, a shallow hyper-eutrophic system. Data provides information on weather conditions (air temperature, RH, wind speed and direction, and incoming solar radiation) and water quality metrics (DO, water temperature, pH, relative abundance of chlorophyll and phycocyanin, water level, specific conductivity) to examine relationships among biotic and abiotic variables. Data are used for research and teaching to examine the structure and function of a pond system susceptible to frequent, consistent, and intense cyanobacteria (blue-green algae) blooms.

• dataset_eml_attributelistlabel: Date and time of observation

• dataset_eml_attributelistdescription: Date and time of observation

• dataset_eml_attributeliststoragetype: datetime

• dataset_eml_attributelistmeasurementtype: datetime
• dataset_eml_attributelistformatstring: YYYY-MM-DD hh:mm:ss

• dataset_eml_attributelistlabel: Date of observation

• dataset_eml_attributelistdescription: Date of observation

• dataset_eml_attributeliststoragetype: datetime

• dataset_eml_attributelistmeasurementtype: datetime
• dataset_eml_attributelistformatstring: YYYY-MM-DD

• dataset_eml_attributelistlabel: Greenwich time of observation

• dataset_eml_attributelistdescription: Greenwich time of observation

• dataset_eml_attributeliststoragetype: datetime

• dataset_eml_attributelistmeasurementtype: datetime
• dataset_eml_attributelistformatstring: hh:mm:ss

• dataset_eml_attributelistlabel: Water temperature depth 1

• dataset_eml_attributelistdescription: Depth 1 is closest to the buoy (nearest surface) on the thermistor chain

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: interval
• dataset_eml_attributeliststandardunit: celsius
• dataset_eml_attributelistprecision: 0.01
• Unit: celsius
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Water temperature depth 2

• dataset_eml_attributelistdescription: Depth 2 is next below depth 1 on the thermistor chain; degrees Celsius

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: interval
• dataset_eml_attributeliststandardunit: celsius
• dataset_eml_attributelistprecision: 0.01
• Unit: celsius
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Water temperature depth 3

• dataset_eml_attributelistdescription: Depth 3 is next below depth 2 on the thermistor chain; degrees Celsius

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: interval
• dataset_eml_attributeliststandardunit: celsius
• dataset_eml_attributelistprecision: 0.01
• Unit: celsius
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Water temperature depth 4

• dataset_eml_attributelistdescription: Depth 4 is next below depth 3 on the thermistor chain; degrees Celsius

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: interval
• dataset_eml_attributeliststandardunit: celsius
• dataset_eml_attributelistprecision: 0.01
• Unit: celsius
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Water temperature depth 5

• dataset_eml_attributelistdescription: Depth 5 is next below depth 4 on the thermistor chain; degrees Celsius

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: interval
• dataset_eml_attributeliststandardunit: celsius
• dataset_eml_attributelistprecision: 0.01
• Unit: celsius
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Water temperature depth 6

• dataset_eml_attributelistdescription: Depth 6 is furthest from the buoy (nearest bottom) on the thermistor chain; degrees Celsius

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: interval
• dataset_eml_attributeliststandardunit: celsius
• dataset_eml_attributelistprecision: 0.01
• Unit: celsius
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Dissolved oxygen near surface

• dataset_eml_attributelistdescription: Dissolved oxygen sensor approximately 1 m below surface; mg/L

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: ratio
• dataset_eml_attributeliststandardunit: milligramsPerLiter
• dataset_eml_attributelistprecision: 0.01
• dataset_eml_attributelistformatstring: MM/DD/YYYY
• Unit: milligramsPerLiter
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Dissolved oxygen at 3m

• dataset_eml_attributelistdescription: Dissolved oxygen sensor approximately 3 m below surface; mg/L

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: ratio
• dataset_eml_attributeliststandardunit: milligramsPerLiter
• dataset_eml_attributelistprecision: 0.01
• Unit: milligramsPerLiter
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Dissolved oxygen at 4m

• dataset_eml_attributelistdescription: Dissolved oxygen sensor approximately 4 m below surface

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: ratio
• dataset_eml_attributeliststandardunit: milligramsPerLiter
• dataset_eml_attributelistprecision: 0.01
• Unit: milligramsPerLiter
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Dissolved oxygen near bottom

• dataset_eml_attributelistdescription: Dissolved oxygen sensor near bottom, approximately 0.5 m above bottom under calm conditions

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: ratio
• dataset_eml_attributeliststandardunit: milligramsPerLiter
• dataset_eml_attributelistprecision: 0.01
• Unit: milligramsPerLiter
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Chlorophyll fluorescence

• dataset_eml_attributelistdescription: Relative units of chlorophyll fluorescence

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: ratio
• dataset_eml_attributeliststandardunit: volt
• dataset_eml_attributelistprecision: 0.000001
• Unit: volt
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Phycocyanin fluorescence

• dataset_eml_attributelistdescription: Relative units of phycocyanin fluorescence

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: ratio
• dataset_eml_attributeliststandardunit: volt
• dataset_eml_attributelistprecision: 0.000001
• Unit: volt
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Depth range

• dataset_eml_attributelistdescription: Depth range from the transducer to bottom; requires offset from surface to get true depth; m

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: ratio
• dataset_eml_attributeliststandardunit: meter
• dataset_eml_attributelistprecision: 0.01
• Unit: meter
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Wind direction

• dataset_eml_attributelistdescription: Direction from which the wind is blowing; degrees

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: interval
• dataset_eml_attributeliststandardunit: degree
• dataset_eml_attributelistprecision: 0.1
• Unit: degree
• dataset_eml_attributelistnumbertype: real
• dataset_eml_attributelistbounds:
• dataset_eml_attributelistboundsminimum: 0
• dataset_eml_attributelistboumdsmaximum: 360

• dataset_eml_attributelistlabel: Wind speed

• dataset_eml_attributelistdescription: Speed of wind; knots (nautical miles per hour)

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: ratio
• dataset_eml_attributeliststandardunit: metersPerSecond
• dataset_eml_attributelistprecision: 0.01
• Unit: metersPerSecond
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Incoming solar radiation

• dataset_eml_attributelistdescription: Irradiance in W/m^2

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: ratio
• dataset_eml_attributeliststandardunit: wattsPerMeterSquared
• dataset_eml_attributelistprecision: 0.1
• Unit: wattsPerMeterSquared
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Air temperature

• dataset_eml_attributelistdescription: Air temperature; degrees Celsius

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: interval
• dataset_eml_attributeliststandardunit: celsius
• dataset_eml_attributelistprecision: 0.01
• Unit: celsius
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Air relative humidity

• dataset_eml_attributelistdescription: Air relative humidity in %

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: interval
• dataset_eml_attributeliststandardunit: percent
• dataset_eml_attributelistprecision: 0.1
• Unit: percent
• dataset_eml_attributelistnumbertype: real
• dataset_eml_attributelistbounds:
• dataset_eml_attributelistboundsminimum: 0
• dataset_eml_attributelistboumdsmaximum: 100

• dataset_eml_attributelistlabel: Barometric pressure

• dataset_eml_attributelistdescription: Air pressure in Bars

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: interval
• dataset_eml_attributeliststandardunit: bar
• dataset_eml_attributelistprecision: 0.000001
• Unit: bar
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Buoy heading

• dataset_eml_attributelistdescription: Direction the buoy is facing; for purposes here, the heading faces north which is the backside of the solar panels; degrees

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: interval
• dataset_eml_attributeliststandardunit: degree
• dataset_eml_attributelistprecision: 0.1
• Unit: degree
• dataset_eml_attributelistnumbertype: real
• dataset_eml_attributelistbounds:
• dataset_eml_attributelistboundsminimum: 0
• dataset_eml_attributelistboumdsmaximum: 360

• dataset_eml_attributelistlabel: Buoy latitude

• dataset_eml_attributelistdescription: Buoy latitude in decimal degrees

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: interval
• dataset_eml_attributeliststandardunit: degree
• dataset_eml_attributelistprecision: 0.00000001
• Unit: degree
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Buoy longitude

• dataset_eml_attributelistdescription: Buoy longitude in decimal degrees

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: interval
• dataset_eml_attributeliststandardunit: degree
• dataset_eml_attributelistprecision: 0.00000001
• Unit: degree
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Buoy altitude

• dataset_eml_attributelistdescription: altitude above sea level; m

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: ratio
• dataset_eml_attributeliststandardunit: meter
• dataset_eml_attributelistprecision: 0.1
• Unit: meter
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Wind speed

• dataset_eml_attributelistdescription: Speed of wind; m/sec

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: ratio
• dataset_eml_attributeliststandardunit: metersPerSecond
• dataset_eml_attributelistprecision: 0.01
• Unit: metersPerSecond
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Open channel

• dataset_eml_attributelistlabel: Open channel

• dataset_eml_attributelistlabel: Open channel

• dataset_eml_attributelistlabel: Open channel

• dataset_eml_attributelistlabel: Open channel

• dataset_eml_attributelistlabel: Open channel

• dataset_eml_attributelistlabel: Open channel

• dataset_eml_attributelistlabel: Open channel

• dataset_eml_attributelistlabel: Open channel

• dataset_eml_attributelistlabel: Open channel

• dataset_eml_attributelistlabel: Open channel

• dataset_eml_attributelistlabel: Open channel

• dataset_eml_attributelistlabel: Open channel

• dataset_eml_attributelistlabel: Open channel

• dataset_eml_attributelistlabel: Open channel

• dataset_eml_attributelistlabel: Open channel

• dataset_eml_attributelistlabel: Open channel

• dataset_eml_attributelistlabel: Open channel

• dataset_eml_attributelistlabel: Open channel

• dataset_eml_attributelistlabel: pH values

• dataset_eml_attributelistdescription: pH of the lake water. Collection ended 11/3/2015 2:44:00 PM.

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: interval
• dataset_eml_attributeliststandardunit: dimensionless
• dataset_eml_attributelistprecision: 0.01
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Specific conductivity

• dataset_eml_attributelistdescription: Conductivity of water standardized to 25 degrees celsius; uS/m. Collection ended 11/3/2015 2:44:00 PM.

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: ratio
• dataset_eml_attributeliststandardunit: customMicrosiemensPerMeter
• dataset_eml_attributelistprecision: 0.1
• Unit: MicrosiemensPerMeter
• dataset_eml_attributelistnumbertype: real

• Sampling overview
  • dataset_eml_methodsStartDate: 2015-04-21
    
  • dataset_eml_methoddescription: The sensors on the Shelburne Pond buoy are continuously "sampled", with averages recorded over 15 minute intervals. The sampling rate varies across sensors (see below), therefore the number of samples used for average values for each 15 minutes varies among some sensors.

• Water Temperature
  • dataset_eml_methodsStartDate: 2015-04-21
    
  • dataset_eml_methoddescription: Six temperature sensors measure water temperature in celsius along a thermistor chain, with Sensor 1 nearest the buoy and sensor 6 at the deepest end of the chain.
  dataset_eml_methodsQAQC: At start and end of field seasons, all six temperature sensors are placed in same mixed water bath to evaluate precision among sensors.

• Dissolved Oxygen
  • dataset_eml_methodsStartDate: 2015-04-21
    
  • dataset_eml_methoddescription: Dissolved oxygen is measured by two sensors, one near the buoy and one on the thermistor chain near the end.
  dataset_eml_methodsInstrumentation: Sensorex DO6400dataset_eml_methodsQAQC: Sensor is calibrated in air-saturated water according to manufacturer's instructions.

• Chlorophyll
  • dataset_eml_methodsStartDate: 2015-04-21
    
  • dataset_eml_methoddescription: In vivo chlorophyll fluorescence is measured
  dataset_eml_methodsInstrumentation: Turner Designs CYCLOPS submersible fluorometer, Serial No. 2180559dataset_eml_methodsQAQC: Calibrate to deionized water for zero reading. Measure for relative chlorophyll fluorescence.

• Phycocyanin
  • dataset_eml_methodsStartDate: 2015-04-21
    
  • dataset_eml_methoddescription: In vivo phycocyanin fluoresence is measured
  dataset_eml_methodsInstrumentation: Turner Designs CYCLOPS submersible fluorometer, Serial No. 2180560dataset_eml_methodsQAQC: Calibrate to deionized water for zero reading. Measure for relative phycocyanin fluorescence.

• pH
  • dataset_eml_methodsStartDate: 2015-04-21
    
  • dataset_eml_methoddescription: In vivo pH of the water is measured
  dataset_eml_methodsInstrumentation: Campbell Scientific CSIM11dataset_eml_methodsQAQC: Calibrated at pH 7 and pH 10 solutions

• Conductivity
  • dataset_eml_methodsStartDate: 2015-04-21
    
  • dataset_eml_methoddescription: The specific conductance of the water is regularly measured
  dataset_eml_methodsInstrumentation: Global water conductivity sensor WQ301Fdataset_eml_methodsQAQC: Calibrated by manufacturere for specific conductance

• Depth
  • dataset_eml_methodsStartDate: 2015-04-21
    
  • dataset_eml_methoddescription: Depth range measured using transducer
  dataset_eml_methodsInstrumentation: Airmar NMEA 0183 DT800

• Wind
  • dataset_eml_methodsStartDate: 2015-04-21
    
  • dataset_eml_methoddescription: True (vs relative) wind direction and wind speed in knots are measured
  dataset_eml_methodsInstrumentation: Airmar 150WX, ID 3075418dataset_eml_methodsQAQC: Calibrated by manufacturer (test procedure 96-154-02)

• Solar Radiation
  • dataset_eml_methodsStartDate: 2015-04-21
    
  • dataset_eml_methoddescription: Incoming solar radiation in W per m^2 is measured with a pyranometer
  dataset_eml_methodsInstrumentation: Kipp & Zonen CMP 6, Serial No. 133626dataset_eml_methodsQAQC: Calibrated by manufacturer (certificate no. 008116133626)

• Meteorology
  • dataset_eml_methodsStartDate: 2015-04-21
    
  • dataset_eml_methoddescription: Meteorological conditions are regularly measured, including temperature, humidity and barometric pressure
  dataset_eml_methodsInstrumentation: Airmar 150WX, ID 3075418dataset_eml_methodsQAQC: Calibrated by manufacturer (test procedure 96-154-02)

• Position
  • dataset_eml_methodsStartDate: 2015-04-21
    
  • dataset_eml_methoddescription: Buoy heading, location and altitude are measured
  dataset_eml_methodsInstrumentation: Airmar 150WX, ID 3075418dataset_eml_methodsQAQC: Calibrated by manufacturer (test procedure 96-154-02)

• dataset_eml_methodsStartDate: 2015-04-21
  
• dataset_eml_samplingdescription: The sensors on the Shelburne Pond buoy are continuously "sampled", with averages recorded over 15 minute intervals. The sampling rate varies across sensors (see below), therefore the number of samples used for average values for each 15 minutes varies among some sensors.
• dataset_eml_samplingFrequency: 15 minutes

• dataset_eml_methodsStartDate: 2015-04-21
  
• dataset_eml_samplingdescription: Temperature is sampled at 0.166 Hz
• dataset_eml_samplingFrequency: 0.1667 Hz

• dataset_eml_methodsStartDate: 2015-04-21
  
• dataset_eml_samplingdescription: Dissolved oxygen, chlorophyll, phycocyanin and pH are sampled at 2 Hz
• dataset_eml_samplingFrequency: 2 Hz

• dataset_eml_methodsStartDate: 2015-04-21
  
• dataset_eml_samplingdescription: Depth is sampled at 1 Hz
• dataset_eml_samplingFrequency: 1 Hz

• dataset_eml_methodsStartDate: 2015-04-21
  
• dataset_eml_samplingdescription: Meteorological conditions and buoy position and orientation are sampled at 1 Hz
• dataset_eml_samplingFrequency: 1 Hz