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<br />~ <br /> <br />will be processed inunediately on th'a Bureau of Reclamation compubar and <br />entered in the archives. All other sounding data will be extracted from <br />the appropriate records, keypunched, and soundings computed at Texas A&M <br />and later archived in the Bureau of Reclamation computer in Denver. <br />3.2.3 Radar <br />Data will be collected by two radar systems, the FPS-77 located at <br />the Big Spring Municipal Airport (formerly Webb Air Force Base), and the <br />M-33 (3 and 10 cm) located at Snyder. All data for the FPS-77 will be <br />recorded either on forms prepared for the purpose or photographically. All <br />digital data collected by the M-33 ,."ill be recorded on magnetic tape for <br />later processing. <br />In addition to the FPS-77 and the M-33 radars, data also will be <br />obtained from the National Weather Service radar at Midland. These data <br />will serve to provide information on convective clouds adjacent to as <br />well as over the target area, and will serve as back-up data in the event <br />data from the other radars are lost due to instrumentation difficulties. <br />In addition, the 3 cm ATMOS-IV radar will serve as a back-up radar to the <br />FPS-77 if needed for this purpose. <br />3.2.4 Aircraft <br />A total of four aircraft will participate in the 1978 Texas HIPLEX <br />field program. These will consist of the Lear Jet provided by the Colorado <br />International Corporation for on-top seeding, a turbo-charged Navajo <br />supplied by the Colorado River Municipal Water District (CRMWD) for on-top <br />seeding, an Aztec also made available by CRMWD for base seeding and for <br />making cloud-base measurements, and a Navajo supplied by Meteorology <br />Research, Inc. for making cloud physics measurements. Variables measured <br />by the MRI Navajo are shown in Table 3.2.4.1. Variables measured by the <br />CRMWD Aztec will include temperaturE~, altitude, vertical air motion, drop <br />spectra (300-4500 ~), and humidity. Variables measured by the cro~ Navajo <br />will include temperature and vertical air motion. Cloud position informa- <br />tion will be recorded manually. <br />The CRMWD pilots will take several orientation rides in thE~ Lear <br />Jet for familiarization purposes early in the field program. <br />3.2.5 Satellite <br />Satellite data will be collected from the GOES Satellite ait: 30-min <br />intervals during each mesoscale operational day. These data will be <br />collected by Texas Tech University at the National Weather Servicla station <br />in Lubbock. Both visual and infrared photographs will be collectlad at <br />30-min intervals during each operational day. <br />8 <br /> <br />.. <br /> <br />~ <br />