03151nas|a2200397 i 4500 20260818143417.0 121095s1989 th uu m rtt 00| a1eng d .b10364092 AIT RSPR no. WA-89-02 Prasert Mahakit Installation of an automatic agrometeorological station Bangkok : Asian Institute of Technology, 1989 89 p + 1 online resource Research studies project report ; no. WA-89-2 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. Meteorology, Agricultural Loof, Rainer, Chairperson Jensen, N.E., Co-chairperson Wiboon Boonyatharokul, Examination committee Van Winden, Jake, Examination committee King's Scholarship, Scholarship donor Asian Institute of Technology. Research studies project report ; no. WA-89-2 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B17618 .b10364092 mnait y 240402 2 951012 m a y 0 mnait mnarc 22 40 Barcode : 30050120617575 CREATED : 2013-11-06 RECORD # : i12731456 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120347207 CREATED : 2016-10-06 RECORD # : i13030504 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 61085 61085 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT RSPR no. WA-89-02 30050120617575 2026-08-18 14:34:17 3 2026-08-18 22 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT RSPR no. WA-89-02 30050120347207 2026-08-18 14:34:17 2026-08-18 40