Measurements of ice mass balance and temperature from autonomous Seasonal Ice Mass Balance (SIMB3) buoys deployed in the Central Arctic Ocean on the ArcWatch expedition in 2023

The dataset contains measurements made from three autonomous Seasonal Ice Mass Balance (SIMB) buoys. The buoys were deployed in the late summer of 2023 as part of the Alfred Wegener Institute ArcWatch Project. Each buoy measured position, barometric pressure, air temperature, and a vertical profile of temperature from the air, through the snow, through the ice, and into the upper ocean. An above ice downward looking sounder tracked the position of the surface and an underwater upward looking sounder tracked the position of the ice bottom. Sensors were placed every 0.02 meters (m) on the vertical temperature string. Measurements were made every four hours and results were transmitted via Iridium. There is one csv file for each SIMB.

本数据集包含三台自主式季节冰质量平衡（Seasonal Ice Mass Balance, SIMB）浮标的观测数据。这些浮标于2023年夏末部署，作为阿尔弗雷德·魏格纳研究所ArcWatch项目的一部分。每台浮标可采集位置、气压、气温，以及从大气经积雪、海冰直至上层海洋的垂直温度剖面数据。浮标搭载冰面朝下的声呐设备以追踪冰面位置，同时搭载水下朝上的声呐设备以监测冰底位置。垂直温度传感器链上的传感器以每0.02米的间距布设。观测每4小时进行一次，数据通过铱星（Iridium）通信系统传输。每台SIMB浮标对应一个csv格式数据文件。