TAMDAR AERI-bago Validation Experiment (TAVE) Daily Summary ----------------------- Date: 20 May 2005 CST (Thursday) 0000-2400 UTC Location: Tennessee Air National Guard at MEM Airport Operators: K. Bedka, S. Nasiri http://cimss.ssec.wisc.edu/tamdar/ Weather Conditions: The day began with temperatures in the 80's and dewpoints near 70. After a trough passed through, mid-50 dewpoints coupled with subsidence from aloft allowed temperatures to soar into the mid-90's. Winds were sunstained at 15 kts during the afternoon, making the sonde lauches a bit unpleasant. Instrument Status: * Surface pressure, RH, and temperature sensors working and archiving. Anemometer has completely failed, no plans as of yet for a new one for the duration of TAVE-II. * Ceilometer working and archiving * GPS system working and archiving * AERI working and archiving * Radiosonde system is working and archiving 4 launches were completed today 0000 UTC Launch normal, data good 1505 UTC Launch normal, Initial sonde had pressure readings of 3000000 mb. After a complex, time-consuming analysis, the operators deemed the measurements to be invalid. the replacement sonde was fine. 1915 UTC Launch normal, data good 2220 UTC Launch normal, data good Science/Miscellaneous: The operators had to contend with an air conditioning failure within the AERIbago. Both bago A/C units failed in the early afternoon, allowing temperatures within the bago to rise to 95 F. The operators tried to diagnose the problem and suspect that the units had been on for too long a time period. We left them off tonight, as temperatures were forecasted to plunge into the 60's. Hopefully the units work tomorrow, as the operators may wither away in the heat. As the AERI system is sensitive to ambient temperature changes, the data may be suspect from about 1 PM until sunset. The UW-CIMSS team will evalutate this in the coming days. AERIBago contact number: 608-219-0565 If you or anyone you know would like to be included on this email list please respond to these summaries with your/their contact information. Kris Bedka