R# | Site | Serial Number | Measurement | Start Date | Start Time | End Date | End Time | Data Quality Statement |
1 | BMS | | Global 90-North LI-200 | 05/12/2021 | 12:12:00 | 05/12/2021 | 12:54:00 | The relay multiplexer on the SRRL BMS radiometer tower had a problem (old age/possible moisture) and was replaced during this time, the (4) vertical LI-200s will read bogus. |
2 | BMS | | Global 90-North LI-200 | 09/25/2020 | 09:07:00 | 12/15/2021 | 19:31:00 | DATA CORRECTED on 12/17/2021: Irradiances were increased by 0.675% due to revised BORCAL report for all BMS shortwave radiometers calibrated in 2020 and 2021. |
3 | BMS | PY1726 | Global 90-North LI-200 | 07/11/2006 | 13:34:00 | 07/14/2006 | 13:24:00 | The PY1726 instrument which was just calibrated in BORCAL 2006-02, was reading about 1.27 times too high. The calibration history shows a continous decline in response from 15 µV/W/m^2 in 1998 to 9.7 for 2006. There may be a problem with the instrument, so it was removed and replaced temporarily with PY1724. Another instrument will be calibrated in BORCAL 2006-04 which will serve as the replacement. |