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United States Department of Agriculture

Agricultural Research Service

Title: Web-Based Real-Time Monitoring of Lysimeter Using Wireless Sensor Network

Authors
item Kim, Yunseop
item Jabro, Jalal "jay"
item Iversen, William
item Evans, Robert

Submitted to: ASA-CSSA-SSSA Annual Meeting Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: May 12, 2006
Publication Date: November 13, 2006
Citation: Kim, Y., Jabro, J.D., Iversen, W.M., Evans, R.G. 2006. Web-based real-time monitoring of lysimeter using wireless sensor network. ASA-CSSA-SSSA International Annual Meetings. Paper No. 27304.

Interpretive Summary: Identification of agrochemicals in leachate allows accessing the effectiveness of water quality management. Lysimeters collect agrochemical contents and widely used to gain water infiltration and identify potential pollutant sources. A wireless lysimeter was designed and evaluated. Wireless in-field sensor network was developed for real-time lysimeter monitoring. Twelve lysimeters were installed across the field and equipped with two rain gauges to measure amount of drainage water and two soil moisture sensors installed above the lysimeter to continually monitor soil water contents. Sensors and a data logger were self-powered by a solar power and sensory data was periodically sampled and wirelessly transmitted to a base computer 500 m away from the field via wireless communication. The computer was bridged to web server for real-time lysimeter monitoring on internet.

Technical Abstract: Identification of nitrate-nitrogen (NO3-N) in drainage water allows accessing the effectiveness of water quality management. A wick-type lysimeters was used to monitor water flux and NO3-N leached below the root zone under irrigated cropping system. A wireless lysimeter design was proposed and evaluated. A distributed wireless in-field sensor network was developed for real-time lysimeter monitoring. Twelve lysimeters were installed across the field and equipped with two rain gauges to measure amount of drainage water. Two TDR soil moisture sensors were installed above the lysimeter to continually monitor soil water contents. Sensors and a data logger were self-powered by a solar power and sensory data was periodically sampled and wirelessly transmitted to a base computer 500 m away from the field via Bluetooth spread spectrum radio communication. The computer was bridged to web server for real-time lysimeter monitoring on internet.

Last Modified: 12/21/2014
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