BOREAS AFM-5 level-1 upper air network data

Original publisher: Greenbelt, Md. : National Aeronautics and Space Administration, Goddard Space Flight Center, [2000] OCLC Number: (OCoLC)66462301 Excerpt: ... method as at Candle Lake and Thompson Zoo except that ventilated psychrometric tables were used to determine the relative humidity and dew point. It is unknown what procedure was followed regarding the wick / muslin sleeve or if corrections were applied for each thermometer. A two minute wind average was measured using a U2A instrument ( as described for Thompson Zoo for BOREAS 1994 ). Winds may also have been observed from a strip chart produced by the U2A system. Pressure was measured using a standard mercury barometer. No correction was applied. 6. Observations 6.1 Data Notes The following table contains field notes and is organized by date. Note: The sone release times are listed in GMT ( also called Zulu, abreviated by the letter Z ). Thus, 11Z is 1 1 Zulu, or 1 1: 00 GMT. Site Name Date and Time Comments Key Lake 94-Apr-12 17Z Early burst, second release performed. Candle Lake 94-Apr-13 i 1Z RH incorrectly calculated using a correction for wet bulb of-1.0 instead of-0.1. RH was entered as 41 % instead of 54 %. Dew point may be recorded incorrectly. 94-Apr-13 17Z Dew point may be incorrect. Saskatoon 94-Apr-13 17Z No wind data. 94-Apr-13 23Z No wind data. Candle Lake 94-Apr-14 11Z Light snow at release time, turning into heavy snow, quit at 1230. Local power surge followed by outage at 11: 32, 11: 33, 11: 45 and 12: 02. Outage at 12: 02-remained out until flight terminated. Saskatoon 94-Apr-14 23Z Computer lost sonde signal. 94-Apr-15 23Z No flight information-radiosonde technical problems. Candle Lake 94-Apr-16 17Z String connecting radiosonde to balloon did not appear to unwind fully. Saskatoon 94-Apr-16 11Z No flight information-radiosonde technical problems. 94-Apr-16 17Z No flight information-radiosonde technical problems. Thompson 94-Apr-18 1 IZ Lost signal-unable to find. 94-Apr-19 11Z Old...