Total column ozone at PMOD/WRC from Brewer #163, KOHERENT, Pandora P120 and QASUME

Scientist in charge: Luca Egli, PMOD/WRC ([e-mail])Description:This dataset is the key data of total columne ozone measured with Brewer #163 KOHERENT, Pandora P120, and QASUME during their deployment at PMOD/WRC from 1 September 2019 to 1 September 2024. The dataset is the Deliverable 2 of the QA4EO project WP2230. For Koherent two retrieval algorithms are included: LSF and CDR according to Egli et al. (2023): https://amt.copernicus.org/articles/16/2889/2023/. The Pandora 120 data is calculated with the CDR algorithm and the standard output ("out2") from the Pandonia network is included (www.pandonia-global-network.org). Total columne ozone from QASUME is derived from a linear least square fit algorithm (LSF) according to Egli et al. (2022): https://doi.org/10.5194/amt-15-1917-2022. The data is aggregated to five Minutes quasi simultaneous measurements, while -999=NaN values. At least one valid value is displayed for each time stamp. Format (TAB separated): Year Month Day Hour Minute Second TCO-Brewer163 [DU] TCO-Koherent-LSF [DU] TCO-Koherent-CDR [DU] TCO-Pandora120-CDR [DU] TCO-Pandora120-OUT2 [DU] TCO-QASUME [DU].项目负责人：Luca Egli，PMOD/WRC（邮箱：[e-mail]） 数据集说明：本数据集为2019年9月1日至2024年9月1日期间，布儒尔#163 KOHERENT、潘多拉P120与QASUME在PMOD/WRC站点部署期间测得的总柱臭氧（Total Column Ozone, TCO）核心观测数据集。 本数据集为QA4EO项目WP2230的可交付成果2。 针对KOHERENT设备，本数据集包含两种反演算法：LSF（最小二乘拟合，Least Squares Fit）与CDR，相关方法依据为Egli等人2023年发表的研究：https://amt.copernicus.org/articles/16/2889/2023/。 潘多拉P120的数据采用CDR算法计算得到，同时收录了潘多拉全球网络（Pandonia Global Network）的标准输出（"out2"），网络官方网址为www.pandonia-global-network.org。 QASUME反演得到的总柱臭氧数据基于线性最小二乘拟合算法（LSF），相关依据为Egli等人2022年的研究：https://doi.org/10.5194/amt-15-1917-2022。 所有数据被聚合为5分钟间隔的准同步测量值，其中以-999代表缺失值（NaN）。每个时间戳至少包含一个有效观测值。 数据格式（制表符分隔）：年 月 日 时 分 秒 TCO-Brewer163 [多布森单位（Dobson Unit, DU）] TCO-Koherent-LSF [DU] TCO-Koherent-CDR [DU] TCO-Pandora120-CDR [DU] TCO-Pandora120-OUT2 [DU] TCO-QASUME [DU]。