According to the manufacturer Vaisala, the AIRS Water Vapor Experiment-Ground (AWEX-G) Intensive Operational Period (IOP) at the ARM Southern Great Plains Site launched the first radiosonde RS92 in North America. It flew on-board the Frost-Point Hygrometer package and was launched at approximately 03:00 UT on November 5. All systems were operating normally. Another RS92 sonde launch was planned for 05:30 UT. The AWEX-G IOP began October 27 and concluded November 16. Data from the AWEX-G IOP will be used to validate a satellite-based atmospheric moisture sensor called AIRS (atmospheric infrared sounder). For more information, see the AWEX-G IOP website.