SIMB3 2018B was deployed in the Beaufort Sea on 29 March 2018 in first-year ice (WARM).

From the SIMB3 V2 geometry, field notes: top thermistor 0.89 m above the ice (−0.02), initial ice + bottom distance 3.34 m (−0.05), snow + snow distance ≈ 1.05 m (−0.03)

SIMB3 V2 seasonal ice mass balance buoy (early SIMB3, CRREL/Dartmouth program), 192-sensor Bruncin digital temperature chain at 2 cm spacing.

SIMB3 2018B

Dartmouth College

SIMB3 V2 sensor suite (early SIMB3, 192-sensor Bruncin DTC), imported from the CRREL/Dartmouth Live Data page.

MaxBotix MB7374 downward-looking rangefinder: distance to the snow/ice surface. Mounted about 1.06 m above the initial ice surface (surface height = 1.06 − distance).

Airmar upward-looking underwater rangefinder: distance to the ice/ocean interface. Mounted about 3.31 m below the initial ice surface (ice bottom = distance − 3.31).

Bruncin DTC sensor 1, 0 cm below the top of the chain (about +0.89 m relative to the initial ice surface).

Bruncin DTC sensor 2, 2 cm below the top of the chain (about +0.87 m relative to the initial ice surface).

Bruncin DTC sensor 3, 4 cm below the top of the chain (about +0.85 m relative to the initial ice surface).

Bruncin DTC sensor 4, 6 cm below the top of the chain (about +0.83 m relative to the initial ice surface).

Bruncin DTC sensor 5, 8 cm below the top of the chain (about +0.81 m relative to the initial ice surface).

Bruncin DTC sensor 6, 10 cm below the top of the chain (about +0.79 m relative to the initial ice surface).

Bruncin DTC sensor 7, 12 cm below the top of the chain (about +0.77 m relative to the initial ice surface).

Bruncin DTC sensor 8, 14 cm below the top of the chain (about +0.75 m relative to the initial ice surface).

Bruncin DTC sensor 9, 16 cm below the top of the chain (about +0.73 m relative to the initial ice surface).

Bruncin DTC sensor 10, 18 cm below the top of the chain (about +0.71 m relative to the initial ice surface).

Bruncin DTC sensor 11, 20 cm below the top of the chain (about +0.69 m relative to the initial ice surface).

Bruncin DTC sensor 12, 22 cm below the top of the chain (about +0.67 m relative to the initial ice surface).

Bruncin DTC sensor 13, 24 cm below the top of the chain (about +0.65 m relative to the initial ice surface).

Bruncin DTC sensor 14, 26 cm below the top of the chain (about +0.63 m relative to the initial ice surface).

Bruncin DTC sensor 15, 28 cm below the top of the chain (about +0.61 m relative to the initial ice surface).

Bruncin DTC sensor 16, 30 cm below the top of the chain (about +0.59 m relative to the initial ice surface).

Bruncin DTC sensor 17, 32 cm below the top of the chain (about +0.57 m relative to the initial ice surface).

Bruncin DTC sensor 18, 34 cm below the top of the chain (about +0.55 m relative to the initial ice surface).

Bruncin DTC sensor 19, 36 cm below the top of the chain (about +0.53 m relative to the initial ice surface).

Bruncin DTC sensor 20, 38 cm below the top of the chain (about +0.51 m relative to the initial ice surface).

Bruncin DTC sensor 21, 40 cm below the top of the chain (about +0.49 m relative to the initial ice surface).

Bruncin DTC sensor 22, 42 cm below the top of the chain (about +0.47 m relative to the initial ice surface).

Bruncin DTC sensor 23, 44 cm below the top of the chain (about +0.45 m relative to the initial ice surface).

Bruncin DTC sensor 24, 46 cm below the top of the chain (about +0.43 m relative to the initial ice surface).

Bruncin DTC sensor 25, 48 cm below the top of the chain (about +0.41 m relative to the initial ice surface).

Bruncin DTC sensor 26, 50 cm below the top of the chain (about +0.39 m relative to the initial ice surface).

Bruncin DTC sensor 27, 52 cm below the top of the chain (about +0.37 m relative to the initial ice surface).

Bruncin DTC sensor 28, 54 cm below the top of the chain (about +0.35 m relative to the initial ice surface).

Bruncin DTC sensor 29, 56 cm below the top of the chain (about +0.33 m relative to the initial ice surface).

Bruncin DTC sensor 30, 58 cm below the top of the chain (about +0.31 m relative to the initial ice surface).

Bruncin DTC sensor 31, 60 cm below the top of the chain (about +0.29 m relative to the initial ice surface).

Bruncin DTC sensor 32, 62 cm below the top of the chain (about +0.27 m relative to the initial ice surface).

Bruncin DTC sensor 33, 64 cm below the top of the chain (about +0.25 m relative to the initial ice surface).

Bruncin DTC sensor 34, 66 cm below the top of the chain (about +0.23 m relative to the initial ice surface).

Bruncin DTC sensor 35, 68 cm below the top of the chain (about +0.21 m relative to the initial ice surface).

Bruncin DTC sensor 36, 70 cm below the top of the chain (about +0.19 m relative to the initial ice surface).

Bruncin DTC sensor 37, 72 cm below the top of the chain (about +0.17 m relative to the initial ice surface).

Bruncin DTC sensor 38, 74 cm below the top of the chain (about +0.15 m relative to the initial ice surface).

Bruncin DTC sensor 39, 76 cm below the top of the chain (about +0.13 m relative to the initial ice surface).

Bruncin DTC sensor 40, 78 cm below the top of the chain (about +0.11 m relative to the initial ice surface).

Bruncin DTC sensor 41, 80 cm below the top of the chain (about +0.09 m relative to the initial ice surface).

Bruncin DTC sensor 42, 82 cm below the top of the chain (about +0.07 m relative to the initial ice surface).

Bruncin DTC sensor 43, 84 cm below the top of the chain (about +0.05 m relative to the initial ice surface).

Bruncin DTC sensor 44, 86 cm below the top of the chain (about +0.03 m relative to the initial ice surface).

Bruncin DTC sensor 45, 88 cm below the top of the chain (about +0.01 m relative to the initial ice surface).

Bruncin DTC sensor 46, 90 cm below the top of the chain (about -0.01 m relative to the initial ice surface).

Bruncin DTC sensor 47, 92 cm below the top of the chain (about -0.03 m relative to the initial ice surface).

Bruncin DTC sensor 48, 94 cm below the top of the chain (about -0.05 m relative to the initial ice surface).

Bruncin DTC sensor 49, 96 cm below the top of the chain (about -0.07 m relative to the initial ice surface).

Bruncin DTC sensor 50, 98 cm below the top of the chain (about -0.09 m relative to the initial ice surface).

Bruncin DTC sensor 51, 100 cm below the top of the chain (about -0.11 m relative to the initial ice surface).

Bruncin DTC sensor 52, 102 cm below the top of the chain (about -0.13 m relative to the initial ice surface).

Bruncin DTC sensor 53, 104 cm below the top of the chain (about -0.15 m relative to the initial ice surface).

Bruncin DTC sensor 54, 106 cm below the top of the chain (about -0.17 m relative to the initial ice surface).

Bruncin DTC sensor 55, 108 cm below the top of the chain (about -0.19 m relative to the initial ice surface).

Bruncin DTC sensor 56, 110 cm below the top of the chain (about -0.21 m relative to the initial ice surface).

Bruncin DTC sensor 57, 112 cm below the top of the chain (about -0.23 m relative to the initial ice surface).

Bruncin DTC sensor 58, 114 cm below the top of the chain (about -0.25 m relative to the initial ice surface).

Bruncin DTC sensor 59, 116 cm below the top of the chain (about -0.27 m relative to the initial ice surface).

Bruncin DTC sensor 60, 118 cm below the top of the chain (about -0.29 m relative to the initial ice surface).

Bruncin DTC sensor 61, 120 cm below the top of the chain (about -0.31 m relative to the initial ice surface).

Bruncin DTC sensor 62, 122 cm below the top of the chain (about -0.33 m relative to the initial ice surface).

Bruncin DTC sensor 63, 124 cm below the top of the chain (about -0.35 m relative to the initial ice surface).

Bruncin DTC sensor 64, 126 cm below the top of the chain (about -0.37 m relative to the initial ice surface).

Bruncin DTC sensor 65, 128 cm below the top of the chain (about -0.39 m relative to the initial ice surface).

Bruncin DTC sensor 66, 130 cm below the top of the chain (about -0.41 m relative to the initial ice surface).

Bruncin DTC sensor 67, 132 cm below the top of the chain (about -0.43 m relative to the initial ice surface).

Bruncin DTC sensor 68, 134 cm below the top of the chain (about -0.45 m relative to the initial ice surface).

Bruncin DTC sensor 69, 136 cm below the top of the chain (about -0.47 m relative to the initial ice surface).

Bruncin DTC sensor 70, 138 cm below the top of the chain (about -0.49 m relative to the initial ice surface).

Bruncin DTC sensor 71, 140 cm below the top of the chain (about -0.51 m relative to the initial ice surface).

Bruncin DTC sensor 72, 142 cm below the top of the chain (about -0.53 m relative to the initial ice surface).

Bruncin DTC sensor 73, 144 cm below the top of the chain (about -0.55 m relative to the initial ice surface).

Bruncin DTC sensor 74, 146 cm below the top of the chain (about -0.57 m relative to the initial ice surface).

Bruncin DTC sensor 75, 148 cm below the top of the chain (about -0.59 m relative to the initial ice surface).

Bruncin DTC sensor 76, 150 cm below the top of the chain (about -0.61 m relative to the initial ice surface).

Bruncin DTC sensor 77, 152 cm below the top of the chain (about -0.63 m relative to the initial ice surface).

Bruncin DTC sensor 78, 154 cm below the top of the chain (about -0.65 m relative to the initial ice surface).

Bruncin DTC sensor 79, 156 cm below the top of the chain (about -0.67 m relative to the initial ice surface).

Bruncin DTC sensor 80, 158 cm below the top of the chain (about -0.69 m relative to the initial ice surface).

Bruncin DTC sensor 81, 160 cm below the top of the chain (about -0.71 m relative to the initial ice surface).

Bruncin DTC sensor 82, 162 cm below the top of the chain (about -0.73 m relative to the initial ice surface).

Bruncin DTC sensor 83, 164 cm below the top of the chain (about -0.75 m relative to the initial ice surface).

Bruncin DTC sensor 84, 166 cm below the top of the chain (about -0.77 m relative to the initial ice surface).

Bruncin DTC sensor 85, 168 cm below the top of the chain (about -0.79 m relative to the initial ice surface).

Bruncin DTC sensor 86, 170 cm below the top of the chain (about -0.81 m relative to the initial ice surface).

Bruncin DTC sensor 87, 172 cm below the top of the chain (about -0.83 m relative to the initial ice surface).

Bruncin DTC sensor 88, 174 cm below the top of the chain (about -0.85 m relative to the initial ice surface).

Bruncin DTC sensor 89, 176 cm below the top of the chain (about -0.87 m relative to the initial ice surface).

Bruncin DTC sensor 90, 178 cm below the top of the chain (about -0.89 m relative to the initial ice surface).

Bruncin DTC sensor 91, 180 cm below the top of the chain (about -0.91 m relative to the initial ice surface).

Bruncin DTC sensor 92, 182 cm below the top of the chain (about -0.93 m relative to the initial ice surface).

Bruncin DTC sensor 93, 184 cm below the top of the chain (about -0.95 m relative to the initial ice surface).

Bruncin DTC sensor 94, 186 cm below the top of the chain (about -0.97 m relative to the initial ice surface).