• AC Home
  • Quick Links
Austin College Logo

Sherman, Texas

Environmental Studies

Physics

MENU
  • About
    • Projects
    • Instrumentation
      • Temperature and Relative Humidity
      • Wind
      • Precipitation
      • Barometric Pressure
      • Solar and Net Radiation
      • Soil Measurements
      • Power and Telecommunications
  • Current Weather Data
    • ACWX Current Conditions
    • NWS FWD Radar
    • Visible Satellite
    • Infrared Satellite
    • US Wind Map
    • Weather Map
  • Forecasts
    • NAM Computer Model Forecast
    • NWS Local Forecast
  • Additional Resources
  • Contact
Info For...
  • AC Home
  • Quick Links
Home » About » Instrumentation » Soil Measurements

Soil Measurements

TCAV Averaging Soil Thermocouple Probe

The Campbell Scientific TCAV Averaging Soil Thermocouple probe measures soil temperatures at four separate depths (0.5 cm, 5.5 cm, 10 cm, and 15.5 cm) to estimate the average temperature in the upper 16 cm of soil. 

TCAV Averaging Soil Thermocouple Probe

Quick Facts/Specifications

  • Sensor: Type-E Thermocouple (Chromel-Constantan)
  • Accuracy: ±1.7 deg C
  • Depth: 0.5 cm, 5.5 cm, 10 cm, and 15.5 cm
  • Primary Use: Calculation of heat storage in top 16 cm of soil for energy balance studies

CS655 Water Content Reflectometer

The Campbell Scientific CS655 Water Content Reflectometer measures volumetric soil moisture, the ratio of water volume to total volume of soil and water. Additional measurements of this sensor include dielectric permittivity, bulk electrical conductivity, and soil temperature.

CS655 Water Content Reflectometer

Quick Facts/Specifications

  • Sensor Type: Time domain reflectometer (TDR)
  • Accuracy: 3%
  • Depth: 8 cm
  • Primary Use: Measurement of volumetric water content. The maximum value for clay soils at the Sneed Environmental Research Area is 0.50.
  • Secondary Use: Calculation of heat capacity of soil/water for heat storage calculation

HFP01SC Heat Flux Plate

The total ground heat flux is calculated from two components, a storage of energy in the upper 16 cm of soil and the flux of heat into the soil at 16 cm depth. The storage term is calculated from soil temperature and soil moisture measurements. The heat flux term is measured by a HFP01SC Heat Flux Plate manufactured by Hukseflux.

HFP01SC Heat Flux Plate

Quick Facts/Specifications

  • Sensor: Thermopile and film heater
  • Accuracy: 3%
  • Depth: 16 cm
  • Self-calibration: 3 minutes every 6 hours using a fixed amount of heat
  • Primary Use: Calculation of soil heat flux at 16-cm depth

GET IN TOUCH

903.813.2000
Austin College
900 N. Grand Ave.
Sherman, TX 75090

Contact Us

GET SOCIAL

  • Facebook
  • Twitter
  • YouTube
  • Instagram
  • LinkedIn

GET LINKED

  • Physics
  • Environmental Studies
  • Campus Offices
  • Directory
  • Email

GET CONNECTED

Subscribe to Austin College E-Communication

Connect to AC

Copyright © 2021 - All rights reserved | Site by thrive-logo