Atmospheric Surface Flux Station #30 measurements (Level 1 Raw), Multidisciplinary Drifting Observatory for the Study of Arctic Climate (MOSAiC), central Arctic, October 2019 - September 2020

Raw (Level 1) measurements from the Atmospheric Surface Flux Station #30 (ASFS30) deployed at various locations during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition drifting with the central Arctic sea ice from October 2019 through September 2020. The ASFS measured all parameters of the surface energy budget, surface momentum flux, near-surface meteorology, and local position. These measurements are included in two netCDF files per day. The "slow" files are for 1-minute averages of measured variables, including near-surface meteorology, surface height change, upwelling and downwelling shortwave and longwave radiative fluxes, net surface heat flux, and position. The "fast" files are for data at 20-Hertz (Hz) resolution including 3-dimensional wind, temperature, and gas concentrations of water vapor and carbon dioxide. These data are raw measurements with technical corrections applied but no quality assurance. Moreover, the data files contain all measurements, including data collected during system testing that are not intended for scientific use. A detailed documentation of the measurement conditions will be provided in a forthcoming data publication. For scientific purposes, we recommend using Level 3 data files when they are available, as these will include full quality control as well as higher-order derived products.

本数据集收录了2019年10月至2020年9月期间，"北极气候研究多学科漂流观测站（Multidisciplinary drifting Observatory for the Study of Arctic Climate, MOSAiC）"科考队随北极中央海冰漂流作业时，布设于多个点位的30号大气地表通量站（Atmospheric Surface Flux Station #30, ASFS30）的原始（Level 1）观测数据。该观测站可获取地表能量收支、地表动量通量、近地表气象要素及本地位置等全参数观测数据。此类观测数据每日存储为两份netCDF格式文件。其中"慢采样文件"存储观测变量的1分钟平均值，涵盖近地表气象、地表高度变化、上行及下行短波、长波辐射通量、净地表热通量与位置信息；"快采样文件"则存储20赫兹（Hz）分辨率的数据，涵盖三维风场、气温以及水汽与二氧化碳的气体浓度。此类数据为经过技术校正的原始观测结果，但未经过质量管控流程。此外，数据文件包含全部观测结果，其中包括系统测试阶段采集的、并非用于科学研究的数据。观测条件的详细文档将在即将发布的数据集相关出版物中予以说明。若需用于科学研究，建议在可用时选用Level 3数据文件，此类文件已完成完整质量控制，并包含高阶衍生产品。