Customizable, Integrated System
Requires as little as 6 W of power
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Overview

The open path eddy covariance systems measure sonic sensible heat flux, momentum flux, and the flux of other scalars between the atmosphere and earth’s surface. The system consists of a datalogger, fast response three-dimensional sonic anemometer, and fast response scalar sensors. An independent measure of temperature and humidity from a slow response sensor is also measured to calculate background meteorological variables. Horizontal wind speed and direction are computed by the datalogger from the three-dimensional measurements of wind made by the sonic anemometer.

Basic OPEC

  • Sonic Anemometer (CSAT3A)
  • Infrared Gas Analyzer (EC150)
  • Integrated Sonic Anemometer and Infrared Gas Analyzer (IRGASON)
  • Datalogger (CR3000)
  • Compact Flash card module (NL115 or CFM100)

Extended OPEC

  • Net Radiation (NR-LITE2)
  • Soil Heat Flux (HFP01SC-L)
  • Soil Temperature (TCAV-L)
  • Soil Water Content (CS616-L)
  • Sensible Heat (FW05)
  • Latent Heat (KH20)
  • Temperature and Humidity Probe (HMP155A-L)

Benefits and Features

  • Customizable system providing a range of measurement options
  • Measurements are temporally synchronized through a common set of electronics
  • Low noise
  • Fully integrated, turn-key system
  • User-selectable output bandwidths
  • Low power consumption; suitable for solar power applications
  • Field Rugged
  • Field serviceable
  • On-board data storage using CompactFlash cards and a memory module
  • Extensive set of diagnostic parameters to warn of questionable data
  • Colocated measurement volumes for both analyzer and anemometer

Images