Another clear day with some light haze throughout the day and a little warmer, teens in the morning and 41F in the late afternoon.
ISS1 – all systems still running nominally with profiler status: @ 0924 100m: 4.99A @50V & 1.843A @ 32V, and @ 0931 150m rass: 4.17A @ 50V & 1.892 A @ 32 V
ISS2 – Nagios indicated a problem with the ISS2 lidar not reporting this morning. We found that there was no power reaching the sounding trailer and it looked as though power had been out for several hours. The problem was traced back to a tripped GFI on the ISS2 outlet at the power drop. There was a fair amount of frost everywhere, so it is suspected that moisture may have gotten in somewhere. However the power cables junctions were inspected and were still sealed with tape. Power was restored and the system recovered. The lidar is running at lower resolution and no signs of frost on lens. Emails between Bill and PI’s indicate we may proceed with a factory reset of the lidar. Waiting to hear from Bill if the reset is a go as the lidar’s laptop software is still reporting that the hard drive is ~85% full.
ISFS – After fixing the sounding trailer power, Matt and I went to the Lake Creek and Center Creek sites. Matt used the Leica GPS to measure the direction of the sonic booms. Matt also trained me on how to take soil samples as we took samples at both locations.
Soundings – Since the sounding system had lost power, we had a little trouble getting the base tray to recognize/detect the sonde. We rebooted the computer and sounding system. The problem appears that one has to wait for the sounding system’s green power LED to stop blinking, indicating that the system is ready, which takes several minutes after the system is turned on, before placing the sonde on the ground station tray. A (soft) copy of the user’s manual may have been helpful as we were unsure what a blinking green light meant. We should consider having manuals available for troubleshooting by ISS staff. No issues with the sounding, except it was a few minutes late due to the above delay getting the sonde ready
As indicated in the images below, it was another "hard day at the office" as we trekked out to the Lake Creek site and took soil samples. We ‘borrowed’ the sled that we found on the outside of the helium/tethersonde trailer to carry the soil sampling and Leica hardware.
