IceCube SSA Converter - v1.11 Data exported on 2020-10-04T20:07:25 ---------------- 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 67.9 5.22 #2 111.8 10.44 #3 188.8 19.22 #4 505.6 48.3 #5 862.6 70.19 #6 1609.4 98.25 Number of standards used for calibration: 6 Overall calibration quality: Poor Overall residue for polynomial fit: 890.79 *** A poor quality calibration will lead to unreliable results. It is highly 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: 0.9915 Electronics gain: 1,246 Comment on calibration: 2019.01.02 Snow Pit 1.17 M MD 650 ---------------- Acquisition data Sample number Series Sample signal Reflectance Specific surface area (SSA) Comment 1 surface 498.6 47.72 42.8 old and new snow 2 surface 484.6 46.63 40.4 mostly old snow 3 surface 542.6 51.02 51.3 recent snow, 1-2 mm, DD, 80% column of 0.1 to 0.3 mm width, 0.3 to 1 mm length, rest is a few bullet roset, and some rounded shapes 4 surface 554.3 51.87 53.8 recent snow as above 5 surface 549.8 51.54 52.8 recent snow as above 6 surface 558.5 52.17 54.7 recent snow as above 7 117-101 cm 389.7 38.69 26.2 crusty surface under the fresh snow 8 117-101 cm 391.6 38.86 26.4 9 117-101 cm 386.8 38.43 25.8 10 101-96 cm 404.7 40.01 28.2 11 101-96 cm 399.5 39.56 27.5 12 101-96 cm 403.6 39.92 28 13 96-87 cm 317.9 31.98 18.2 14 96-87 cm 326.2 32.79 19 15 96-87 cm 328.5 33.02 19.3 16 87-85 cm 307.5 30.95 17.3 17 85-83 cm 312.6 31.46 17.7 18 83-73 cm 311.5 31.35 17.6 19 83-73 cm 308.6 31.06 17.4 20 83-73 cm 312.4 31.44 17.7 21 73-71 cm 327.4 32.91 19.2 22 71-62 cm 252.4 25.24 12.7 23 71-62 cm 274.8 27.62 14.5 24 71-62 cm 260.7 26.13 13.4 25 62-61 cm 242.1 24.12 12 26 61-45 cm 256.4 25.67 13 27 61-45 cm 252.4 25.24 12.7 28 61-45 cm 246.3 24.58 12.3 29 45-32 cm 266.8 26.78 13.8 30 45-32 cm 275.4 27.68 14.5 31 45-32 cm 271.9 27.31 14.2 32 32-19 cm 298.7 30.07 16.5 33 32-19 cm 289.6 29.15 15.7 34 32-19 cm 291.4 29.33 15.8 35 19-0 cm 242.7 24.18 12 36 19-0 cm 229.6 22.73 11.1 37 19-0 cm 240.6 23.95 11.9 38 117-110 cm 380 37.82 25 same as the top layer, but there is in fact two layers in that one, density is 310 39 117-110 cm 389.2 38.65 26.1 40 117-110 cm 388.1 38.55 26 41 110-101 cm 434.7 42.58 32.4 second part of the surface layer, density is 320 42 110-101 cm 442.1 43.19 33.5 43 110-101 cm 440 43.02 33.2