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Last modified
7/28/2009 2:42:30 PM
Creation date
4/30/2008 2:48:03 PM
Metadata
Fields
Template:
Weather Modification
Contract/Permit #
NOAA/NA-81-RAC-00023
Title
Evaluation of the Utah Operational Weather Modification Program - Final Report
Date
4/1/1982
State
UT
Weather Modification - Doc Type
Report
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<br />Th~ lo~ati0ns of the grDund based instruments and the general <br />flight track of the aircraft during operations are sho,,-'11 on Fig. 1. <br />ThE il ight track was designed so that data were obtained over both the <br />Tushar ~fuuntains and the Wah Wah ~ountains, the Latter being designated <br />as a control area. Preei pitat ion measurements were made primari 1y 1n <br />an east-west dire::t ion over the Tushar Mountains and two gages were <br />located in the Wah Wah Mountains. <br /> <br />The ma1U research base was at location A (Beaver Base), where <br />the Ka and X-baud radars were located. Radiosonde and c loudsonde mea- <br />surements were also taken from the Beaver Base, and a radiosonde station, <br />located at Adamsvi lle, was operated by NAWC. The radiometer and ice <br />nucleus counter were located at B (Holly Station). An office was <br />maintained in downtown Beaver where National Weather Servi ce data were <br />recorded. <br /> <br />During 12 periods 1n Febrnary and March, 1981, intens ive measure- <br />ments were made. For the last two periods, the research aircraft was <br />not available: because the University of Washington was under contract <br />only until March 15. During these intensivp research periods, or <br />events. the aircraft was flown from St. George ~o the Wah Wah Mountains, <br />then to the Tushar Mountains where several east-'west traverses were made. <br />Also, one or two north-south legs were flown over the Sevier River Valley <br />east of the Tushar Mountains. The purpose of the north-south passes was <br />primarily for ice nuclei data collection. <br /> <br />Besides the ongoing measurements by the radars. <br />precipitation network. additional data were collected <br />events. These data included upper level soundings. <br />snow samples. <br /> <br />radiometer <br />during the <br /> <br />and <br /> <br />12 <br /> <br />ice nuclei, <br /> <br />and <br /> <br />These varLOUS data were subjected to intensive analysis and evalua- <br />t ion following the field program. A brief summary of this effort is <br />described in the next section. <br /> <br />1.2.2 Analys is and evaluat ion of phys ical data. The analys is and <br />f'valuat ion of :iata obtained during the field phase of the program are <br /> <br />(, <br />
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