<span style="font-family: 'Times New Roman','serif'; font-size: 10pt; mso-fareast-font-family: 'MS Mincho'; mso-ansi-language: EN-GB; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-GB">This article describe the analysis of the process models of airport, which are described in Ground Operation Manual. The main goal is creating high level process map. </span>
<span style="font-family: 'Times New Roman','serif'; font-size: 10pt; mso-fareast-font-family: 'MS Mincho'; mso-ansi-language: EN-GB; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-GB">This article discusses new possibilities of assessing the impact of aviation on the atmosphere. The second part of this text describes a project realized at the Department of Air Transport at the Czech Technical University in Prague. The project is focused on investigating the effect of air transport on contrails.</span>
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