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<br />SECTION 4. - PROBE STATIONS <br /> <br />Four surface meteorological stations were used by CRADP during the 1983-84 field <br />season. All stations were of the PROBE (Portable Remote Observaltions of the <br />Environment) type but with slightly different characteristics. Table 4-1 provi- <br />des a numerical identification of the stations as well as sensor' assignments by <br />channel. <br /> <br />It <br /> <br />The PROBE stations transmitted data hourly to the GOES-West Satellite which were <br />then retransmitted to a Down-Link operated by the Bureau of Reclamation in <br />Denver, Colorado. <br /> <br />Stations RRS (Radar/Radiometer Site) and GAU (GMO gage test clea.ring) provided <br />wind speed, di rection, temperature, humidity with the usual compliment of sen- <br />sors used in prior years. The site RRS also used inputs from the liquid and <br />vapor channels of the adjacent NOAA Microwave Radiometer. <br /> <br />Stations GMOand GMG were co-located within the GMO (Grand Mesa Observatory). <br />The sensor compliment is described in table 4-1. It should be noted that these <br />stations were set up with several nonstandard sensors, compared to the past <br />history of this type of station. The wind sensors were mounted atop a 54 foot <br />tower adjacent to the observatory. The wind sensors were made b~ Hydro-Tech MRI <br />and intercompared at various times during the season. The primary temperature <br />and dewpoint sensor was an aspirated EG&G sensor. A Rosemount Icing Rate Meter <br />was put on each station to detect the presence of liquid water. <br /> <br />All data for the field season was integrated for 4 minute - 38 second time <br />blocks every 5 minutes. Table 4-2 gives the site coding, location, and transmit <br />times for each platform. <br /> <br />The vapor indication from the Radiometer was dropped soon after installation and <br />should not be considered part of the Data Set. <br /> <br />!J <br /> <br />4-1 <br />