Use of Radio Telemetry and Capacitance Probes to Monitor Soil Moisture

Edward C Martin, Joe Vinson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Utilizing capacitance probes (C-Probes) in conjunction with radio telemetry, soil moisture was monitored in a cotton field and an alfalfa field in Maricopa, Arizona. Once installed, the data collected by the C-Probes were interrogated every 15 minutes and automatically downloaded by a base station located at a site nearby. The base station, which was connected to a desktop computer, could then be activated to download the data into the computer where the data could be viewed. In addition to the C-Probe data, neutron moisture probe access tubes were also installed at the sites and soil moisture readings taken. The data were compared over several months. When comparing discrete soil moisture values, i.e., values at a particular depth, the C-Probes were not in agreement with the neutron probe readings. However, when comparing soil moisture over a meter depth, or comparing water use data, the C-Probe and neutron probe data compared well. The theory behind this discrepancy is that the C-Probe only measured a discrete soil volume whereas the neutron probe samples a much larger volume. At any particular depth, the comparison may be poor because the two instruments are measuring two separate soil regions. However, when comparing a larger soil volume, the two measurements were in agreement.

Original languageEnglish (US)
Title of host publication2000 ASAE Annual Intenational Meeting, Technical Papers: Engineering Solutions for a New Century
Pages1845-1854
Number of pages10
Volume2
StatePublished - 2000
Event2000 ASAE Annual International Meeting, Technical Papers: Engineering Solutions for a New Century - Milwaukee, WI., United States
Duration: Jul 9 2000Jul 12 2000

Other

Other2000 ASAE Annual International Meeting, Technical Papers: Engineering Solutions for a New Century
CountryUnited States
CityMilwaukee, WI.
Period7/9/007/12/00

Fingerprint

Soil moisture
Telemetering
Capacitance
Neutrons
Soils
Base stations
Personal computers
Cotton
Moisture

Keywords

  • Capacitance probe
  • Neutron probe

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Martin, E. C., & Vinson, J. (2000). Use of Radio Telemetry and Capacitance Probes to Monitor Soil Moisture. In 2000 ASAE Annual Intenational Meeting, Technical Papers: Engineering Solutions for a New Century (Vol. 2, pp. 1845-1854)

Use of Radio Telemetry and Capacitance Probes to Monitor Soil Moisture. / Martin, Edward C; Vinson, Joe.

2000 ASAE Annual Intenational Meeting, Technical Papers: Engineering Solutions for a New Century. Vol. 2 2000. p. 1845-1854.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Martin, EC & Vinson, J 2000, Use of Radio Telemetry and Capacitance Probes to Monitor Soil Moisture. in 2000 ASAE Annual Intenational Meeting, Technical Papers: Engineering Solutions for a New Century. vol. 2, pp. 1845-1854, 2000 ASAE Annual International Meeting, Technical Papers: Engineering Solutions for a New Century, Milwaukee, WI., United States, 7/9/00.
Martin EC, Vinson J. Use of Radio Telemetry and Capacitance Probes to Monitor Soil Moisture. In 2000 ASAE Annual Intenational Meeting, Technical Papers: Engineering Solutions for a New Century. Vol. 2. 2000. p. 1845-1854
Martin, Edward C ; Vinson, Joe. / Use of Radio Telemetry and Capacitance Probes to Monitor Soil Moisture. 2000 ASAE Annual Intenational Meeting, Technical Papers: Engineering Solutions for a New Century. Vol. 2 2000. pp. 1845-1854
@inproceedings{bf957db45aeb441b854c45259daf27e6,
title = "Use of Radio Telemetry and Capacitance Probes to Monitor Soil Moisture",
abstract = "Utilizing capacitance probes (C-Probes) in conjunction with radio telemetry, soil moisture was monitored in a cotton field and an alfalfa field in Maricopa, Arizona. Once installed, the data collected by the C-Probes were interrogated every 15 minutes and automatically downloaded by a base station located at a site nearby. The base station, which was connected to a desktop computer, could then be activated to download the data into the computer where the data could be viewed. In addition to the C-Probe data, neutron moisture probe access tubes were also installed at the sites and soil moisture readings taken. The data were compared over several months. When comparing discrete soil moisture values, i.e., values at a particular depth, the C-Probes were not in agreement with the neutron probe readings. However, when comparing soil moisture over a meter depth, or comparing water use data, the C-Probe and neutron probe data compared well. The theory behind this discrepancy is that the C-Probe only measured a discrete soil volume whereas the neutron probe samples a much larger volume. At any particular depth, the comparison may be poor because the two instruments are measuring two separate soil regions. However, when comparing a larger soil volume, the two measurements were in agreement.",
keywords = "Capacitance probe, Neutron probe",
author = "Martin, {Edward C} and Joe Vinson",
year = "2000",
language = "English (US)",
volume = "2",
pages = "1845--1854",
booktitle = "2000 ASAE Annual Intenational Meeting, Technical Papers: Engineering Solutions for a New Century",

}

TY - GEN

T1 - Use of Radio Telemetry and Capacitance Probes to Monitor Soil Moisture

AU - Martin, Edward C

AU - Vinson, Joe

PY - 2000

Y1 - 2000

N2 - Utilizing capacitance probes (C-Probes) in conjunction with radio telemetry, soil moisture was monitored in a cotton field and an alfalfa field in Maricopa, Arizona. Once installed, the data collected by the C-Probes were interrogated every 15 minutes and automatically downloaded by a base station located at a site nearby. The base station, which was connected to a desktop computer, could then be activated to download the data into the computer where the data could be viewed. In addition to the C-Probe data, neutron moisture probe access tubes were also installed at the sites and soil moisture readings taken. The data were compared over several months. When comparing discrete soil moisture values, i.e., values at a particular depth, the C-Probes were not in agreement with the neutron probe readings. However, when comparing soil moisture over a meter depth, or comparing water use data, the C-Probe and neutron probe data compared well. The theory behind this discrepancy is that the C-Probe only measured a discrete soil volume whereas the neutron probe samples a much larger volume. At any particular depth, the comparison may be poor because the two instruments are measuring two separate soil regions. However, when comparing a larger soil volume, the two measurements were in agreement.

AB - Utilizing capacitance probes (C-Probes) in conjunction with radio telemetry, soil moisture was monitored in a cotton field and an alfalfa field in Maricopa, Arizona. Once installed, the data collected by the C-Probes were interrogated every 15 minutes and automatically downloaded by a base station located at a site nearby. The base station, which was connected to a desktop computer, could then be activated to download the data into the computer where the data could be viewed. In addition to the C-Probe data, neutron moisture probe access tubes were also installed at the sites and soil moisture readings taken. The data were compared over several months. When comparing discrete soil moisture values, i.e., values at a particular depth, the C-Probes were not in agreement with the neutron probe readings. However, when comparing soil moisture over a meter depth, or comparing water use data, the C-Probe and neutron probe data compared well. The theory behind this discrepancy is that the C-Probe only measured a discrete soil volume whereas the neutron probe samples a much larger volume. At any particular depth, the comparison may be poor because the two instruments are measuring two separate soil regions. However, when comparing a larger soil volume, the two measurements were in agreement.

KW - Capacitance probe

KW - Neutron probe

UR - http://www.scopus.com/inward/record.url?scp=2342451364&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=2342451364&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:2342451364

VL - 2

SP - 1845

EP - 1854

BT - 2000 ASAE Annual Intenational Meeting, Technical Papers: Engineering Solutions for a New Century

ER -