Total O3 columns at polar regions: TOMCAT/SLIMCAT passive and active tracers and merged SAOZ-MSR2 dataset
<p>Passive and active total ozone columns simulated by the chemical transport model TOMCAT/SLIMCAT (Chipperfield, 1999) and the merged dataset of total ozone from Système d'Analyse par Observation Zénithale (SAOZ, Pommereau and Goutail, 1988) ground-based instruments and Multi-Sensor Reanalysis (MSR2, van der A et al., 2010, 2015) for the polar stations described in the Table here below.</p>
<p><strong>Table. Arctic and Antarctic stations included in the study: station name and ID, latitude, longitude and measurement periods of SAOZ and MSR2 datasets.</strong></p>
<table>
<tbody>
<tr>
<td>
<p><strong>Station (ID)</strong></p>
</td>
<td>
<p><strong>Lat, Lon</strong></p>
</td>
<td>
<p><strong>SAOZ dataset</strong></p>
</td>
<td>
<p><strong>MSR2 dataset </strong></p>
</td>
</tr>
<tr>
<td>
<p>Eureka, Nunavut (EU)</p>
</td>
<td>
<p>80.1°N, 86.4°W</p>
</td>
<td>
<p>2005-2020</p>
</td>
<td>
<p>1990-2022</p>
</td>
</tr>
<tr>
<td>
<p>Ny-Alesund, Svalbard (NY)</p>
</td>
<td>
<p>78.9°N, 11.9° E</p>
</td>
<td>
<p>1991-2022</p>
</td>
<td>
<p>1990-2022</p>
</td>
</tr>
<tr>
<td>
<p>Thule, Greenland (TH)</p>
</td>
<td>
<p>76.5°N, 68.8°W</p>
</td>
<td>
<p>1999-2003, 2005-2016</p>
</td>
<td>
<p>1990-2022</p>
</td>
</tr>
<tr>
<td>
<p>Scoresbysund, Greenland (SC)</p>
</td>
<td>
<p>70.5°N, 22.0°W</p>
</td>
<td>
<p>1991-2017, 2019-2022</p>
</td>
<td>
<p>1990-2022</p>
</td>
</tr>
<tr>
<td>
<p>Sodankyla, Finland (SK)</p>
</td>
<td>
<p>67.4°N, 26.6° E</p>
</td>
<td>
<p>1991-2022</p>
</td>
<td>
<p>1990-2022</p>
</td>
</tr>
<tr>
<td>
<p>Sondre Stromfjord, Greenland (SS)</p>
</td>
<td>
<p>67.0°N, 50.6°W</p>
</td>
<td>
<p>2018-2022</p>
</td>
<td>
<p>1990-2022</p>
</td>
</tr>
<tr>
<td>
<p>Zhigansk, Russia (ZH)</p>
</td>
<td>
<p>66.8°N, 123.4° E</p>
</td>
<td>
<p>1992-2013</p>
</td>
<td>
<p>1990-2022</p>
</td>
</tr>
<tr>
<td>
<p>Salekhard, Russia (SA)</p>
</td>
<td>
<p>66.5°N, 66.7°E</p>
</td>
<td>
<p>2002-2016</p>
</td>
<td>
<p>1990-2022</p>
</td>
</tr>
<tr>
<td>
<p>Marambio, Antarctica (MB)</p>
</td>
<td>
<p>64.2°S, 56.7°W</p>
</td>
<td>
<p>-</p>
</td>
<td>
<p>1989-2021</p>
</td>
</tr>
<tr>
<td>
<p>Dumont d’Urville, Antarctica (DD)</p>
</td>
<td>
<p>66.7°S, 140.0°E</p>
</td>
<td>
<p>1989-2021</p>
</td>
<td>
<p>1989-2021</p>
</td>
</tr>
<tr>
<td>
<p>Rothera, Antarctica (RO)</p>
</td>
<td>
<p>67.6°S, 68.1°W</p>
</td>
<td>
<p>2007-2021</p>
</td>
<td>
<p>1989-2021</p>
</td>
</tr>
<tr>
<td>
<p>Syowa, Antarctica (SW)</p>
</td>
<td>
<p>69.0°S, 39.6°E</p>
</td>
<td>
<p>-</p>
</td>
<td>
<p>1989-2021</p>
</td>
</tr>
<tr>
<td>
<p>Neumayer, Antarctica (NM)</p>
</td>
<td>
<p>70.7°S, 8.3°W</p>
</td>
<td>
<p>-</p>
</td>
<td>
<p>1989-2021</p>
</td>
</tr>
<tr>
<td>
<p>Terra Nova, Antarctica (TN)</p>
</td>
<td>
<p>74.8°S, 164.5°E</p>
</td>
<td>
<p>-</p>
</td>
<td>
<p>1989-2021</p>
</td>
</tr>
<tr>
<td>
<p>Concordia, Antarctica (DO)</p>
</td>
<td>
<p>75.1°S, 123.4°E</p>
</td>
<td>
<p>2007-2021</p>
</td>
<td>
<p>1989-2021</p>
</td>
</tr>
<tr>
<td>
<p>Halley, Antarctica (HB)</p>
</td>
<td>
<p>75.6°S, 26.8°W</p>
</td>
<td>
<p>-</p>
</td>
<td>
<p>1989-2021</p>
</td>
</tr>
</tbody>
</table>
<p> </p>
<p>Each file corresponds to the whole winter time data set of the station identified by its ID: O3_PassActSLIMCAT_CompositeMSR2SAOZ_ID.txt</p>
<p>1<sup>st</sup> column: Year</p>
<p>2<sup>nd</sup> column: Day of Year (DoY)</p>
<p>3<sup>rd</sup> column: Passive ozone column (without chemistry) modelled by TOMCAT/SLIMCAT (O3pasS).</p>
<p>4<sup>th</sup> column: Active ozone column (with full chemistry) modelled by TOMCAT/SLIMCAT (O3actS).</p>
<p>5<sup>th</sup> column: merged data from SAOZ observations and MSR2 (O3comp)</p>
<p>Passive and active tracers of SLIMCAT were normalized to O3comp data in the beginning of the winter.</p>
<p>NaN is used when there is no observation either from SAOZ instrument or MSR2 dataset or from the model.</p>
<p> </p>
<p><strong>References</strong></p>
<p>Chipperfield, M. P.: New version of the TOMCAT/SLIMCAT offline chemical transport model: Intercomparison of stratospheric tracer experiments, Q. J. Roy. Meteor. Soc., 132, 1179–1203, <a href="https://doi.org/10.1256/QJ.05.51">https://doi.org/10.1256/QJ.05.51</a>, 2006.</p>
<p>Pommereau, J.-P., and Goutail, F.: O<sub>3</sub> and NO<sub>2</sub> ground-based measurements by visible spectrometry during arctic winter and spring 1988, Geophys. Res. Lett., 15, 891–894, <a href="https://doi.org/10.1029/GL015i008p00891">https://doi.org/10.1029/GL015i008p00891</a>,1988.</p>
<p>van der A, R. J., Allaart, M. A. F., and Eskes, H. J.: Multi sensor reanalysis of total ozone, Atmos. Chem. Phys., 10, 11277–11294, <a href="https://doi.org/10.5194/acp-10-11277-2010">https://doi.org/10.5194/acp-10-11277-2010</a>, 2010.</p>
<p>van der A, R. J., Allaart, M. A. F., and Eskes, H. J.: Extended and refined multi sensor reanalysis of total ozone for the period 1970–2012, Atmos. Meas. Tech., 8, 3021–3035, <a href="https://doi.org/10.5194/amt-8-3021-2015">https://doi.org/10.5194/amt-8-3021-2015</a>, 2015.</p>
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