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

<p>Scientist in charge: Luca Egli, PMOD/WRC (luca.egli@pmodwrc.ch)<br><br>Description:<br>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.</p> <p>The dataset is the Deliverable 2 of the QA4EO project WP2230.</p> <p>For Koherent two retrieval algorithms are included: LSF and CDR according to Egli et al. (2023): https://amt.copernicus.org/articles/16/2889/2023/.</p> <p><br>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).&nbsp;</p> <p><br>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.</p> <p><br>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.</p> <p>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].</p>