IceCube SSA Converter - v1.11 Data exported on 2020-10-04T21:09:07 ---------------- IceCube device Serial number: IS3-SP-14-02N Device released on: 2014-11-19 Last revised on: 2014-11-19 NOTE: this IceCube device was last revised more than 5 years ago. Please consider recalibrating it in the near future for optimal results. Sphere wall surface (%): 0.981768 Snow surface (%): 0.015751 Photodiode surface (%): 0.000145 ---------------- Calibration data Set of reflectance standards Serial number: IS3-RS-14-02N Released on: 2014-11-19 Last revised on: 2014-11-19 NOTE: this set was last revised more than 5 years ago. Please consider recalibrating it in the near future for optimal results. Standard # Signal (mV) Reflectance (%) #1 69.3 5.22 #2 112.7 10.44 #3 190.7 19.22 #4 506.5 48.3 #5 857.6 70.19 #6 1600 98.25 Number of standards used for calibration: 6 Overall calibration quality: Fair Overall residue for polynomial fit: 735.395 *** A fair quality calibration will strongly reduce the system accuracy. It is advised that you go through calibration again, or revise your standards. 2 standard(s) with excellent fitting: #4 #6 1 standard(s) with good fitting: #5 1 standard(s) with fair fitting: #3 2 standard(s) with poor fitting: #1 #2 *** Information about the fit of individual standards is only indicative: because of the way polynomial regression works, the standard(s) responsible for a bad calibration quality might appear with a perfect fit, and vice-versa. Background (mV): 52.6 Optical parameters Fraction of collimated photons: 0.999 Reflectance of sphere wall: 0.9914 Electronics gain: 1,250 Comment on calibration: 2019.01.03 Snow Pit 1.1 M MD 568 ---------------- Acquisition data Sample number Series Sample signal Reflectance Specific surface area (SSA) Comment 1 110-106 cm 393.1 39.05 26.7 2 110-106 cm 392.4 38.98 26.6 3 110-106 cm 396.5 39.35 27.1 4 106-101 cm 376.6 37.57 24.6 5 106-101 cm 360.4 36.08 22.7 6 106-101 cm 357.6 35.82 22.4 7 101-90 cm 323.6 32.58 18.8 8 101-90 cm 311.8 31.42 17.7 9 101-90 cm 321.9 32.41 18.7 10 90-88 cm 329.6 33.16 19.4 11 88-78 cm 309.7 31.21 17.5 12 88-78 cm 311.3 31.37 17.6 13 88-78 cm 308 31.04 17.3 14 78-75 cm 321.1 32.34 18.6 15 75-63 cm 302.5 30.49 16.8 16 75-63 cm 290 29.22 15.7 17 75-63 cm 280 28.19 14.9 18 63-57 cm 290 29.22 15.7 19 63-57 cm 287 28.91 15.5 20 63-57 cm 300.4 30.28 16.7 21 57-50 cm 260 26.08 13.3 22 57-50 cm 264 26.51 13.6 23 57-50 cm 262.4 26.34 13.5 24 50-30 cm 241.2 24.04 11.9 25 50-30 cm 242.1 24.14 12 26 50-30 cm 240.4 23.95 11.9 27 30-6 cm 285.6 28.77 15.4 28 30-6 cm 250.5 25.06 12.6 29 30-6 cm 239.6 23.87 11.8 30 6-0 cm 251.1 25.12 12.6 31 6-0 cm 250.6 25.07 12.6 32 6-0 cm 249.7 24.97 12.5 33 surface 511.2 48.75 45.3 variability surface 34 surface 496.2 47.6 42.6 variability surface 35 surface 490.4 47.15 41.5 variability surface 36 surface 523.5 49.68 47.7 variability surface, more recent snow with DD, small depression 37 surface 533.9 50.46 49.8 variability surface, more recent snow with DD, small depression 38 surface 529.6 50.14 48.9 surface top crust with DD 39 surface 521.4 49.53 47.3 surface top crust with DD 40 surface 529.2 50.11 48.8 surface top crust with DD 41 surface 470.4 45.57 38.1 surface top crust without DD, brushed away before sampling 42 surface 470.3 45.56 38.1 surface top crust without DD, brushed away before sampling 43 surface 472.5 45.73 38.5 surface top crust without DD, brushed away before sampling