| R# | Serial Number | Calibration Facility | Calibration Date | Date for next Calibration | Responsivity [45] | Responsivity [45:55] | Responsivity [Comp] | Calibration Factor [45] | Instrument::Make | Instrument::Model | Instrument::Description | Instrument::Program | Instrument::Factory Calibration | Instrument::Date of Factory Calibration | Responsivity Bins [2 deg] | Responsivity Bins [9 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] | Responsivity [45:55] [Corr] | Responsivity [Comp] [Corr] | Correction Method |
| 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 | | | | | |