Measurements of ice mass balance and temperature from autonomous Seasonal Ice Mass Balance buoys in the Arctic Ocean, 2019-2020.

The dataset contains measurements made from four autonomous Seasonal Ice Mass Balance (SIMB) buoys. The buoys were deployed in the fall of 2019 as part of the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) Distributed Network at sites L1, L2, L3, and at the Central Observatory. They were collocated with platforms making observations of the atmosphere and ocean. 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4台自主式季节冰质量平衡（Seasonal Ice Mass Balance，SIMB）浮标的观测测量数据。这些浮标于2019年秋季部署，作为北极气候多学科漂流观测站（Multidisciplinary drifting Observatory for the Study of Arctic Climate，MOSAiC）分布式网络的组成部分，布设点位涵盖L1、L2、L3以及中央观测站。所有浮标均与开展大气与海洋观测的平台共址部署。每台浮标可测量位置、气压、空气温度，以及从大气经积雪、海冰直至上层海洋的垂直温度剖面。浮标搭载的冰面朝下声呐可追踪冰面位置，水下朝上声呐则可监测冰底位置。垂直温度探测串上每0.02米（m）即布设一枚传感器。观测每4小时开展一次，采集所得数据通过铱星（Iridium）系统传输。每个SIMB浮标对应一份CSV格式数据文件。