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<br />"" <br /> <br />3.2.6 Other <br />Routine synoptic data including surface and sounding data, as well <br />as teletype and fascimile products, will be archived at Big Spring by the <br />Texas Department of Water Resources and at Texas A&M University for later <br />use as required. These data will be made available as the need arises <br />following the field program. <br />3.3 Period of Field Program <br />The field program will begin on May 15, 1978 and terminate August 15, <br />1978. Equipment will be installed, checked out, and preliminary data <br />collected to insure that all systems are operational during the last half <br />of May. Cloud seeding and the collec,tion of data from the special surface <br />network will be conducted during the months of June and July, while multiple <br />atmospheric soundings will be made during the period June l-July 15, 1978. <br />Cloud seeding will be conducted primarily during June and July. <br />3.4 Types of Clouds and Cloud Systems Selected for Seeding <br />A variety of cloud types and cloud systems will be selected for seed- <br />ing during the summer of 1978. Emphasis will be placed on seeding a <br />large number of growing cumulus clouds in the -40C to -lOoC range. While <br />emphasis will be placed on calibration-type seeding of individual growing <br />convective clouds, turrets associated with a few convective complexes will <br />be seeded as well as turrets associated with clusters or lines of convec- <br />tive complexes. It is expected that no more than two lines will be seeded <br />in order to gain experience with this type of operation, although turrets <br />assocj,.ated with numerous convective complexes may be seeded depending <br />upon the frequency of occurrence of these complexes and the oppor'tuni ties <br />for seeding individual growing cumulus clouds. <br /> <br />10 <br />