Deployed on a a large ice floe measuring 5 km (W-E) by 9 km (N-S), composed of mixed 2nd-yr and multi-yr ice. The flat surface where the IMB was deployed has a thickness of 1.1–1.3 m. A central ridge running NW-SE divides the large floe into distinct northern and southern plains.

SIMB3 V4 with embedded one-wire temperature string.

KOPRI 2026 #1

Korea Polar Research Institute

Standard sensor suite for the version 4 SIMB3s (2023 - present) with the embedded 160 sensor digital temperature string.

Bosch BME280 combination pressure, temperature and humidity sensor.

DS18B20 air temperature sensor located at the top of the buoy surounded by a radiation shield. Located approximately 1.2 meters above the ice surface.

Batter voltage of the SIMB3 internal battery

Temperature taken at the underwater rangefinder

Distance from the underwater rangefinder to the ice/ocean interface

Distance from the above-surface rangefinder to the ice/snow surface

DS28EAOO temperature chip located approximately 70 cm above freeboard

DS28EAOO temperature chip located approximately 68 cm above freeboard

DS28EAOO temperature chip located approximately 66 cm above freeboard

DS28EAOO temperature chip located approximately 64 cm above freeboard

DS28EAOO temperature chip located approximately 62 cm above freeboard

DS28EAOO temperature chip located approximately 60 cm above freeboard

DS28EAOO temperature chip located approximately 58 cm above freeboard

DS28EAOO temperature chip located approximately 56 cm above freeboard

DS28EAOO temperature chip located approximately 54 cm above freeboard

DS28EAOO temperature chip located approximately 52 cm above freeboard

DS28EAOO temperature chip located approximately 50 cm above freeboard

DS28EAOO temperature chip located approximately 48 cm above freeboard

DS28EAOO temperature chip located approximately 46 cm above freeboard

DS28EAOO temperature chip located approximately 44 cm above freeboard

DS28EAOO temperature chip located approximately 42 cm above freeboard

DS28EAOO temperature chip located approximately 40 cm above freeboard

DS28EAOO temperature chip located approximately 38 cm above freeboard

DS28EAOO temperature chip located approximately 36 cm above freeboard

DS28EAOO temperature chip located approximately 34 cm above freeboard

DS28EAOO temperature chip located approximately 32 cm above freeboard

DS28EAOO temperature chip located approximately 30 cm above freeboard

DS28EAOO temperature chip located approximately 28 cm above freeboard

DS28EAOO temperature chip located approximately 26 cm above freeboard

DS28EAOO temperature chip located approximately 24 cm above freeboard

DS28EAOO temperature chip located approximately 22 cm above freeboard

DS28EAOO temperature chip located approximately 20 cm above freeboard

DS28EAOO temperature chip located approximately 18 cm above freeboard

DS28EAOO temperature chip located approximately 16 cm above freeboard

DS28EAOO temperature chip located approximately 14 cm above freeboard

DS28EAOO temperature chip located approximately 12 cm above freeboard

DS28EAOO temperature chip located approximately 10 cm above freeboard

DS28EAOO temperature chip located approximately 8 cm above freeboard

DS28EAOO temperature chip located approximately 6 cm above freeboard

DS28EAOO temperature chip located approximately 4 cm above freeboard

DS28EAOO temperature chip located approximately 2 cm above freeboard

DS28EAOO temperature chip located approximately 0 cm above freeboard

DS28EAOO temperature chip located approximately 2 cm below freeboard

DS28EAOO temperature chip located approximately 4 cm below freeboard

DS28EAOO temperature chip located approximately 6 cm below freeboard

DS28EAOO temperature chip located approximately 8 cm below freeboard

DS28EAOO temperature chip located approximately 10 cm below freeboard

DS28EAOO temperature chip located approximately 12 cm below freeboard

DS28EAOO temperature chip located approximately 14 cm below freeboard

DS28EAOO temperature chip located approximately 16 cm below freeboard

DS28EAOO temperature chip located approximately 18 cm below freeboard

DS28EAOO temperature chip located approximately 20 cm below freeboard

DS28EAOO temperature chip located approximately 22 cm below freeboard

DS28EAOO temperature chip located approximately 24 cm below freeboard

DS28EAOO temperature chip located approximately 26 cm below freeboard

DS28EAOO temperature chip located approximately 28 cm below freeboard

DS28EAOO temperature chip located approximately 30 cm below freeboard

DS28EAOO temperature chip located approximately 32 cm below freeboard

DS28EAOO temperature chip located approximately 34 cm below freeboard

DS28EAOO temperature chip located approximately 36 cm below freeboard

DS28EAOO temperature chip located approximately 38 cm below freeboard

DS28EAOO temperature chip located approximately 40 cm below freeboard

DS28EAOO temperature chip located approximately 42 cm below freeboard

DS28EAOO temperature chip located approximately 44 cm below freeboard

DS28EAOO temperature chip located approximately 46 cm below freeboard

DS28EAOO temperature chip located approximately 48 cm below freeboard

DS28EAOO temperature chip located approximately 50 cm below freeboard

DS28EAOO temperature chip located approximately 52 cm below freeboard

DS28EAOO temperature chip located approximately 54 cm below freeboard

DS28EAOO temperature chip located approximately 56 cm below freeboard

DS28EAOO temperature chip located approximately 58 cm below freeboard

DS28EAOO temperature chip located approximately 60 cm below freeboard

DS28EAOO temperature chip located approximately 62 cm below freeboard

DS28EAOO temperature chip located approximately 64 cm below freeboard

DS28EAOO temperature chip located approximately 66 cm below freeboard

DS28EAOO temperature chip located approximately 68 cm below freeboard

DS28EAOO temperature chip located approximately 70 cm below freeboard

DS28EAOO temperature chip located approximately 72 cm below freeboard

DS28EAOO temperature chip located approximately 74 cm below freeboard

DS28EAOO temperature chip located approximately 76 cm below freeboard

DS28EAOO temperature chip located approximately 78 cm below freeboard

DS28EAOO temperature chip located approximately 80 cm below freeboard

DS28EAOO temperature chip located approximately 82 cm below freeboard

DS28EAOO temperature chip located approximately 84 cm below freeboard

DS28EAOO temperature chip located approximately 86 cm below freeboard

DS28EAOO temperature chip located approximately 88 cm below freeboard

DS28EAOO temperature chip located approximately 90 cm below freeboard

DS28EAOO temperature chip located approximately 92 cm below freeboard

DS28EAOO temperature chip located approximately 94 cm below freeboard

DS28EAOO temperature chip located approximately 96 cm below freeboard

DS28EAOO temperature chip located approximately 98 cm below freeboard

DS28EAOO temperature chip located approximately 100 cm below freeboard

DS28EAOO temperature chip located approximately 102 cm below freeboard

DS28EAOO temperature chip located approximately 104 cm below freeboard

DS28EAOO temperature chip located approximately 106 cm below freeboard

DS28EAOO temperature chip located approximately 108 cm below freeboard

DS28EAOO temperature chip located approximately 110 cm below freeboard