<?xml version="1.0" encoding="UTF-8" ?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-10-13T18:22:16Z</responseDate><request identifier="10.35097/qvax1z6c5j93zkty" metadataPrefix="oai_dc" verb="GetRecord">https://www.radar-service.eu/oai/OAIHandler</request><GetRecord><record><header><identifier>10.35097/qvax1z6c5j93zkty</identifier><datestamp>2026-10-09T10:53:19Z</datestamp><setSpec>radar4kit</setSpec></header><metadata><oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/"
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   <dc:identifier>https://dx.doi.org/10.35097/qvax1z6c5j93zkty</dc:identifier>
   <dc:creator>Kirner, Oliver</dc:creator>
   <dc:title>EMAC Simulation Dataset (2002–2019) for the St. Petersburg FTIR Station Using MESSy v2.53 (T42L90 Resolution)</dc:title>
   <dc:publisher>Karlsruhe Institute of Technology</dc:publisher>
   <dc:date>2026</dc:date>
   <dc:subject>Computer Science</dc:subject>
   <dc:type>dataset</dc:type>
   <dc:subject>Dataset</dc:subject>
   <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
   <dc:rights>https://creativecommons.org/licenses/by/4.0/legalcode</dc:rights>
   <dc:description>This dataset contains output from an EMAC (ECHAM/MESSy Atmospheric Chemistry) simulation covering the period from 1 January 2002 to 31 August 2019. The simulation was performed with MESSy version 2.53 using the comprehensive EVAL chemistry setup at T42 horizontal resolution with 90 vertical layers (T42L90).&#xD;
&#xD;
The dataset consists of 27 ASCII (.dat) files containing hourly vertical profiles of meteorological parameters (temperature, pressure, density) and chemical substances (e.g. H$_2$O, O$_3$, CO, CO$_2$, N$_2$O, CH$_4$, NO, NO$_2$, BrNO$_3$, CFC-11, CFC-12 and more) simulated by EMAC. The profiles were interpolated to the geolocation of the St. Petersburg FTIR (Fourier Transform Infrared) station, enabling direct comparison with ground-based FTIR observations.&#xD;
&#xD;
This dataset was generated to support the analysis presented in the submitted manuscript "Variability and Trends of Ozone and Ozone-Related Stratospheric Trace Gases over St. Petersburg (Russia)" by Virolainen et al. (Earth, submitted, 2026).</dc:description>
   <dc:description>This dataset contains output from an EMAC (ECHAM/MESSy Atmospheric Chemistry) simulation covering the period from 1 January 2002 to 31 August 2019. The simulation was performed with MESSy version 2.53 using the comprehensive EVAL chemistry setup at T42 horizontal resolution with 90 vertical layers (T42L90).&#xD;
&#xD;
The dataset consists of 27 ASCII (.dat) files containing hourly vertical profiles of meteorological parameters (temperature, pressure, density) and chemical substances (e.g. H$_2$O, O$_3$, CO, CO$_2$, N$_2$O, CH$_4$, NO, NO$_2$, BrNO$_3$, CFC-11, CFC-12 and more) simulated by EMAC. The profiles were interpolated to the geolocation of the St. Petersburg FTIR (Fourier Transform Infrared) station, enabling direct comparison with ground-based FTIR observations.&#xD;
This dataset was generated to support the analysis presented in the submitted manuscript "Variability and Trends of Ozone and Ozone-Related Stratospheric Trace Gases over St. Petersburg (Russia)" by Virolainen et al. (Earth, submitted, 2026)</dc:description>
   <dc:description>The dataset consists of 27 ASCII (.dat) files containing hourly atmospheric profile data extracted from an EMAC (ECHAM/MESSy Atmospheric Chemistry) simulation for the period from 1 January 2002 to 31 August 2019. &#xD;
Each file contains one atmospheric variable for the complete simulation period. The profiles were interpolated to the geolocation of the St. Petersburg FTIR station.&#xD;
The data are provided as plain-text files. Each record represents one hourly model output and contains the corresponding vertical profile.</dc:description>
   <dc:subject>EMAC</dc:subject>
   <dc:subject>MESSy</dc:subject>
   <dc:subject>model simulation</dc:subject>
   <dc:subject>Atmospheric Chemistry</dc:subject>
   <dc:subject>FTIR</dc:subject>
   <dc:subject>St. Petersburg</dc:subject>
   <dc:relation>https://publikationen.bibliothek.kit.edu/1000195750</dc:relation>
   <dc:format>application/x-tar</dc:format>
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