BOREAS AFM-5 level-2 upper air network standard pressure level data

Original publisher: Greenbelt, Md. : National Aeronautics and Space Administration, Goddard Space Flight Center, [2000] OCLC Number: (OCoLC)66462389 Excerpt: ... 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 11: 00 GMT. Site Name Date and Time Comments Key Lake 94-Apt-12 17Z Early burst, second release performed. Candle Lake 94-Apr-13 11Z 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 1 IZ 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 1 IZ Old looking balloon 94-Apr-19 17Z Old looking balloon 94-Apr-20 17Z Lost signal for a while. Candle La...