PEARL is continuously collecting valuable environmental data from Pleasant Bay. She has a suite of sensors that constantly monitor and log the following quantities:

  • Air temperature
  • Relative humidity
  • Air pressure
  • Ambient light intensity
  • Wind speed
  • Water temperature
  • PEARL electronics temperature
  • PEARL electronics humidity
  • PEARL electronics pressure
  • GPS coordinates

Displayed below is the real-time, downsampled data collected from PEARL for the past six calendar days, including today. You can also download the latest seven days of data in a JSON format. Additional data since the start of data collection for the various sensors is also available in a CSV format below each plot. These CSV files are updated weekly.

Download air temperature data
Sensor 1: SHT-30
(Note: The SHT-30 has a built in heater that is programmed to toggle on for 10 seconds every 30 seconds to prevent moisture build up, resulting in sharp changes in relative humidity and temperature.)
Sensor 2: LSP35HW

Download water temperature data
Sensor: DS18B20

Download relative humidity data
Sensor: SHT-30
(Note: The SHT-30 sensor has a built in heater that is programmed to toggle on for 10 seconds every 30 seconds to prevent moisture build up, resulting in sharp changes in relative humidity and temperature.)

Download ambient light data
Sensor: VEML7700

Download atmospheric pressure data
Sensor: LPS35HW

Download wind speed data
Sensor: SEN0170

Download battery state of charge data
Sensor: Xtra2210N-N Solar Charge Controller

Download electronics temperature data
Sensor 1: HTU21D-F
Sensor 2: BMP280

Download electronics relative humidity data
Sensor: HTU21D-F

Download electronics pressure data
Sensor: BMP280

Download water pH data
Sensor: EZO-PH

Download water dissolved oxygen data
Sensor: EZO-DO

Download water electrical conductivity data
Sensor: EZO-EC