Meteorological Instruments

• RM Young 05106-5 wind speed and direction anemometer,
• Li-COR LI200X Pyranometer (solar radiation sensor),
• Vaisala PTB101B barometer, and
• Vaisala HMP45C-L air temperature/relative humidity sensor

The CR10X that controls the profiling system and logs water-quality data also controls the meteorological instruments. Meteorological parameters are measured by the system every 1 minute and are averaged every hour. The data are downloaded to the USGS base station every 24 hours (along with water-quality data).