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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />disk every two minutes. The disk size is sufficient to record a <br />full seasons worth of data. <br /> <br />Tipping curves area means of calibrating the radiometer. These <br /> <br />will be performed approximatly every two weeks under clear sky <br /> <br />conditions and a steady water vapor environment. The procedures <br /> <br />for executing a tipping curve can be found in the radiometer <br /> <br />reference manual located in the radiometer trailer. <br /> <br />It is important that during radiometer operation, the outside <br />reflector dish be kept free of snow or water. The dish must be <br />checked often during moderate to heavy snowfall conditions. A <br />fan located near the dish is utilized to help maintain a snow <br />free surface. <br /> <br />The radiometer will need to be monitored as much as possible <br />during precipitation and/or cloudy weather. A contractor (North <br />American Weather) provided individual has been obtained for a two <br />month period to perform this function. <br /> <br />The objectives for using the radiometer are as follows: <br /> <br />1. Provide rea~-time indications of supercooled liquid water <br /> <br />for conducting seeding operations during the January through <br /> <br />March intensive field season. <br /> <br />24 <br />