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<br />00254'1 <br /> <br />being slightly more effective due to its improved reception frequency. <br />A system was developed to average wind data, store it for several <br />hours, and transmit it from a remote site. <br /> <br />This test of the LANDSAT system for operational use emphasized the <br />value of continued research for its application. New technology <br />acquired through development of the RAIN (Remote Auto-Initiated <br />Network) will permit collection of one or more meteorological <br />parameters at several sites and transmittal to a single LANDSAT DCP <br />on a "self-timed" basis. In addition, under the GOES system all data <br />collected can be transmitted and received as often as once per hour. <br />With updated information on developments in the LANDSAT system, users <br />have begun to develop long-range plans for data collection requirements. <br /> <br />. <br /> <br />CONTRACTOR: Western Weather Consultants, Inc., Durango, Colorado <br />PURCHASE ORDER NO. 6-01-ER-02552 <br />PRINCIPAL INVESTIGATORS: L. M. Hjermstad and P. W. Mielke <br />PERIOD: March to July 1975 <br />FUNDING: $2,000 <br /> <br />Under this purchase order, Western Weather Consultants, Inc., pre- <br />sented a diagnostic evaluation technique to identify cloud types from <br />data collected during Reclamation's 5-year CRBPP. The apparent <br />modification potential of increased precipitation from ground-based <br />silver iodide seeding was also assessed. An area-average ,method <br />identified single orographic cloud systems with no higher clouds and <br />with cloud top temperatures warmer than -23 'c as having a definite <br />potential for precipitation augmentation. An important result of <br />this study is that a reasonably consistent trend of cloud responses <br />to ground-based seeding, dependent upon certain synoptic and meteoro- <br />logical parameters, is emerging. These results can be simplified for <br />operational application in areas similar to that of the pilot project <br />by considering factors such as wind direction and velocity, cloud- <br />base height in relation to height of the mountain barrier, and <br />temperatures at various levels. <br /> <br />II-12 <br />