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<br />activities are conducted to provide additional watE!r for both hydroelectric <br />and irrigation reservoirs. <br /> <br />November-February - During the northeast monsoon pE!riod cloud seeding <br />operations are occasionally conducted by two to three rainmaking teams for <br />paddy and field crops cultivation in southern and E!astern parts of <br />Tha 11 and. <br /> <br />2. Implementation procedure <br /> <br />The implementation of the seeding technology is directed by a field <br />operation manager and the staff of scientists who interpret the essen- <br />tial weather data and information for operation planni.ng and decisions. <br />The field operation manager operates in accordanCE! with seeding design <br />specifications based on intuition and experience. The following steps <br />typically are taken by the RRRDI in implementing al cloud seeding <br />operation: <br /> <br />o Advance activities: <br /> <br />- Transport all supporting facilities and chemicals to the <br />selected operational airbase, usually upwind of the target area. <br /> <br />- Consult with the provincial authorities fOlr priorities on areas <br />and ask for cooperation in reporting precipitation. <br /> <br />- Contact local support organizations such as: the local meteoro- <br />logical station, domestic radio and telex communications, the <br />airport authorities, etc. <br /> <br />- Survey the topography and local weather conditions. <br /> <br />- Plan and prepare for evaluation. <br /> <br />o Operational activities: <br /> <br />- Collect all weather observation data by 0800 local time inclu- <br />ding: <br /> <br />. ground information from the local me:teorological station., <br /> <br />. <br /> <br />regional forecast, synoptic situation, and general weather <br />map from the Meteorological Departme:nt through the single- <br />side band radio network. <br /> <br />. <br /> <br />radiosonde observation. <br /> <br />Plan daily operation to include: <br /> <br />. determining the target area. <br /> <br />selecting the seeding site, flying distances, and <br />directions. <br /> <br />,~ <br /> <br />~ <br /> <br />. <br /> <br />32 <br />