AI SearchInstallation of an automatic agrometeorological station
Call Number: AIT RSPR no. WA-89-02 Material type:
SeriesSeries: Asian Institute of Technology. Research studies project report ; no. WA-89-2Publication details: Bangkok : Asian Institute of Technology, 1989Description: 89 p + 1 online resourceSubject(s): Online resources: Dissertation note: Research Studies Project Report (M.Eng.) - Asian Institute of Technology, 1989 Summary: This study presents the installation of an automated monitoring system for agrometeorological data using data logger CR21 with sensors and lysimeters at the ALWDP experimental field in the Asian Institute of Technology (AIT), Bangkok, during the period of February to June 1989. These instruments collect the data continuously. For the reliability of the instruments all sensors were calibrated in the Calibration Laboratory of the Instrument Division under the Meteorological Department, Bangna, Bangkok, Thailand. Some instruments were recalibrated in the Hydraulics Laboratory of Water Resources Engineering Division and in the Laboratory of Energy Technology Division at AIT. The calibrated results were close to the specifications given in the manuals. The International Standards recommended by the World Meteorological Organization (WMO) and the Food and Agricultural Organization (FAO) were followed for installing these instruments. The observed data from the lysimeters were quite low due to the type of grass, the fine texture of the soil at the site (clay type), high compaction characteristics of the soil and the suction pressure in the water supply tank. The data collected from datalogger for all the instruments agree with data collected from the manually operated instruments. Observations of data by datalogger system are quick, automatic, reliable and reasonably guaranteed.
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22-AIT Thesis (Replacement)
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Asian Institute of Technology Library AIT Publications | AIT RSPR no. WA-89-02 (Browse shelf(Opens below)) | 3 | Available | 30050120617575 | |||||||||||||
40-Archives
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Asian Institute of Technology Library Archives | AIT RSPR no. WA-89-02 (Browse shelf(Opens below)) | Available | 30050120347207 |
A research study submitted in partial fulfilment of the requirements for the degree of Master of Engineering
Research Studies Project Report (M.Eng.) - Asian Institute of Technology, 1989
This study presents the installation of an automated monitoring system for agrometeorological data using data logger CR21 with sensors and lysimeters at the ALWDP experimental field in the Asian Institute of Technology (AIT), Bangkok, during the period of February to June 1989. These instruments collect the data continuously. For the reliability of the instruments all sensors were calibrated in the Calibration Laboratory of the Instrument Division under the Meteorological Department, Bangna, Bangkok, Thailand. Some instruments were recalibrated in the Hydraulics Laboratory of Water Resources Engineering Division and in the Laboratory of Energy Technology Division at AIT. The calibrated results were close to the specifications given in the manuals. The International Standards recommended by the World Meteorological Organization (WMO) and the Food and Agricultural Organization (FAO) were followed for installing these instruments. The observed data from the lysimeters were quite low due to the type of grass, the fine texture of the soil at the site (clay type), high compaction characteristics of the soil and the suction pressure in the water supply tank. The data collected from datalogger for all the instruments agree with data collected from the manually operated instruments. Observations of data by datalogger system are quick, automatic, reliable and reasonably guaranteed.
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