R# | Serial Number | Calibration Facility | Calibration Date | Date for next Calibration | Responsivity [45] | Calibration Factor [45] | Instrument::Make | Instrument::Model | Instrument::Description | Instrument::Program | Instrument::Factory Calibration | Instrument::Date of Factory Calibration | Responsivity Bins [2 deg] | Responsivity Function Coefficients | Other Calibrations | Calibration File | Contact Person | Documentation Title | Calibration Method | Calibration Notes | Other Information | Datalogger Entry Date | Responsivity [45] [Corr] | Calibration Factor [45] [Corr] | Correction Method | Responsivity Bins Average [2 deg] |
1 | 1263 | NREL | 09/06/2007 | 09/06/2009 | | Snow Depth (cm) = 146.85 cm - Measured Distance (cm) | CSI | SR50A | UltraSonic Distance Sensor | NREL/Program | | | | | | | Afshin Andreas | | FCO and reference distance (sensor height) | | SRRL BMS Snow Depth Sensor | 09/06/2007 | | | | |
2 | 1263 | NREL | 09/12/2008 | 09/12/2010 | | Snow Depth (cm) = 146.5 cm - Measured Distance (cm) | CSI | SR50A | UltraSonic Distance Sensor | NREL/Program | | | | | | | Afshin Andreas | | FCO and reference distance (sensor height) | Sensor moved from Meteorological Tower to Radiometer Tower | SRRL BMS Snow Depth Sensor | 09/12/2008 | | | | |
3 | 1263 | NREL | 09/18/2008 | 09/18/2010 | | Snow Depth (cm) = 142.5 cm - Measured Distance (cm) | CSI | SR50A | UltraSonic Distance Sensor | NREL/Program | | | | | | | Afshin Andreas | | reference distance (sensor height) | Aluminum plate on ground replaced with gray 16" square stepping stone | SRRL BMS Snow Depth Sensor | 09/18/2008 | | | | |
4 | 1263 | NREL | 02/06/2009 | 02/06/2011 | | Snow Depth (cm) = 142.923 cm - Measured Distance (cm) | CSI | SR50A | UltraSonic Distance Sensor | NREL/Program | | | | | | | Afshin Andreas | | reference distance (sensor height) | | SRRL BMS Snow Depth Sensor | 02/06/2009 | | | | |
5 | 1263 | NREL | 07/29/2015 | 07/29/2017 | | Snow Depth (cm) = 143.4 cm - Measured Distance (cm) | CSI | SR50A | UltraSonic Distance Sensor | NREL/Program | | | | | | | Afshin Andreas | | reference distance (sensor height) | | SRRL BMS Snow Depth Sensor | 07/31/2015 | | | | |
6 | 1263 | NREL | 10/28/2016 | 10/28/2018 | | Snow Depth (cm) = 144.8 cm - Measured Distance (cm) | CSI | SR50A | UltraSonic Distance Sensor | NREL/Program | | | | | | | Afshin Andreas | | reference distance (sensor height) | averaged data for atleast a month | SRRL BMS Snow Depth Sensor | 10/28/2016 | | | | |
7 | 1263 | NREL | 01/13/2017 | 01/13/2019 | | Snow Depth (cm) = 143.45 cm - Measured Distance (cm) | CSI | SR50A | UltraSonic Distance Sensor | NREL/Program | | | | | | | Afshin Andreas | | reference distance (sensor height) | transducer replaced | SRRL BMS Snow Depth Sensor | 01/13/2017 | | | | |
8 | 1263 | NREL | 01/17/2018 | 01/17/2020 | | Snow Depth (cm) = 130.76 cm - Measured Distance (cm) | CSI | SR50A | UltraSonic Distance Sensor | NREL/Program | | | | | | | Afshin Andreas | | reference distance (sensor height) | sensor relocated 30 ft to west of radiometer tower on new stand | SRRL BMS Snow Depth Sensor | 01/17/2018 | | | | |
9 | 1263 | NREL | 08/16/2018 | 08/16/2020 | | Snow Depth (cm) = 131.18 cm - Measured Distance (cm) | CSI | SR50A | UltraSonic Distance Sensor | NREL/Program | | | | | | | Afshin Andreas | | reference distance (sensor height) | | SRRL BMS Snow Depth Sensor | 08/17/2018 | | | | |
10 | 1263 | NREL | 07/26/2020 | 07/26/2022 | | Snow Depth (cm) = 130.27 cm - Measured Distance (cm) | CSI | SR50A | UltraSonic Distance Sensor | NREL/Program | | | | | | | Afshin Andreas | | reference distance (sensor height) | average distance from 6/1/2020 through 7/26/2020 | SRRL BMS Snow Depth Sensor | 07/27/2020 | | | | |
11 | 1263 | NREL | 04/12/2021 | 04/12/2023 | | Snow Depth (cm) = 128.81 cm - Measured Distance (cm) | CSI | SR50A | UltraSonic Distance Sensor | NREL/Program | | | | | | | Afshin Andreas | | reference distance (sensor height) | transducer replaced | SRRL BMS Snow Depth Sensor | 04/12/2021 | | | | |