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<br />I. <br /> <br />!~ <br /> <br />. <br /> <br /> <br />Section 3. - Radar <br /> <br />The SWR-75 Skywater radar was used for data collection from November 29, 1983 <br />through Mar.,:~__~2' 1~84. .. ___.,..~~~_..__..r". <br />--"---' <br /> <br />The radar was co-located with the NOAA Microwave R.i!d.iomet~J'at Island lake on <br />the Grand'lles-a'."Coordinafes'were 390"02'1511 N.,H5soo0'1711 W: ~and about 3,172 <br />(10,400 ft.) altitude MSl. <br /> <br />The major characteristics of the radar are outlined in table 3-1. The radar <br />could collect data at 1-, 5-, 10-, 15-, or 30-minute intervals (operator <br />selectable). THe antenna was positioned in a vertically pointing orientation <br />and locked there. Major changes were made to the DVIP (Digital Video <br />Integrating Processor) to facilitate the use of a timer to take records, rath <br />than taking records as part of a volume scan, as had been the history of this <br />device. Also incorporated was the ability to take records with no range dela. <br /> <br />The normal ope rat i ng mode was to take 1 record eve ry 60 seconds wi th no range <br />delay. The data was recorded on magnetic tape as shown in table 3..2. The ba <br />tape output product is a vertical profile of reflectivity against time. The <br />ground clutter echo is variable in intensity and extends approximately 1 km <br />above the radar with another peak at about 3 km. As of this writing, no sing <br />source for the clutter echo has been identified. <br /> <br />3-1 <br /> <br />_, _..~=_____~~... _ ,_J.\.h.'_~_~. - <br />