Abstract

<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>

Highlights

  • The impact of commercial air transport on the atmosphere has been researched over a long time

  • This material provides an explanation of the estimate of radiative forcing (RF), which is used to estimate the impact of air transport on the atmosphere

  • Contrails are composed of crystals of a smaller size compared to natural cloud at the same altitude. This results in more uncertainties in contrail effective radiative forcing (ERF) estimates because it seems probable that contrails are more sensitive to longwave radiation

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Summary

INTRODUCTION

The impact of commercial air transport on the atmosphere has been researched over a long time. Information on the effects of air transport on the atmosphere and environment can be found for example in (1). This material provides an explanation of the estimate of radiative forcing (RF), which is used to estimate the impact of air transport on the atmosphere. It mentions the fact that air transport most probably affects changes in the atmosphere in other ways. A new indicator, the effective radiative forcing (ERF), is used for this purpose. Differences between those two indicators are explained in the following chapter

Definition of ERF
Crystal size
The effect of contrails on cloud
Induced cloud
RESEARCH AT THE DEPARTMENT OF AIR TRANSPORT
Statistics
Findings
CONCLUSION
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