Cited by 229Advanced Aircraft Design and TechnologiesAtmospheric aerosols and cloudsMeteorological Phenomena and Simulations

A contrail cirrus prediction model

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Schumann, U.·2012·Geoscientific Model Development

Published version of a preprint

Abstract

Abstract. A new model to simulate and predict the properties of a large ensemble of contrails as a function of given air traffic and meteorology is described. The model is designed for approximate prediction of contrail cirrus cover and analysis of contrail climate impact, e.g. within aviation system optimization processes. The model simulates the full contrail life-cycle. Contrail segments form between waypoints of individual aircraft tracks in sufficiently cold and humid air masses. The initial contrail properties depend on the aircraft. The advection and evolution of the contrails is followed with a Lagrangian Gaussian plume model. Mixing and bulk cloud processes are treated quasi analytically or with an effective numerical scheme. Contrails disappear when the bulk ice content is sublimating or precipitating. The model has been implemented in a "Contrail Cirrus Prediction Tool" (CoCiP). This paper describes the model assumptions, the equations for individual contrails, and the analysis-method for contrail-cirrus cover derived from the optical depth of the ensemble of contrails and background cirrus. The model has been applied for a case study and compared to the results of other models and in-situ contrail measurements. The simple model reproduces a considerable part of observed contrail properties. Mid-aged contrails provide the largest contributions to the product of optical depth and contrail width, important for climate impact.

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Registry

Crossref · 10.5194/gmd-5-543-2012

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7 of 7 references verified0 citation errors · 0 not checkable

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  • In major air traffic corridors over the United States and Europe, contrail cirrus may warm the atmospheric column by more than 500 mW m−2 and contribute substantially to regional anthropogenic radiative forcing.

    “For example, in major air traf fi c corridors over the United States and Europe, contrail cirrus may warm the atmospheric column by more than 500 mW m -2 , and hence contribute substantially to the regional anthropogenic radiative forcing 12,13 .”

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Authors
Schumann, U.
Affiliations
Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR) (DE)
Corresponding author
Schumann, U.
Venue
Geoscientific Model Development
Published
2012-05-03
Volume
5
Issue
3
Pages
543-580
ISSN
  • 1991-959X (ISSN-L)
  • 1991-9603
OpenAlex
W2142869058
Cited by
229
References
7
Citations by year
2026: 29 · 2025: 30 · 2024: 30 · 2023: 17 · 2022: 17 · 2021: 19 · 2020: 7 · 2019: 1 · 2018: 7 · 2017: 5 · 2016: 16 · 2015: 9 · 2014: 8 · 2013: 12 · 2012: 12
FWCI
10.90
Type
journal article
Language
en
Open access
Locations
  • Geoscientific model development (publishedVersion, cc-by)
  • elib (German Aerospace Center) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Physical Sciences › Environmental Science › Global and Planetary Change › Advanced Aircraft Design and Technologies
  • Physical Sciences › Environmental Science › Global and Planetary Change › Atmospheric aerosols and clouds
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Meteorological Phenomena and Simulations
Keywords
contrail cirrus, optical depth, aviation emissions, ice sublimation, precipitation, aircraft flight tracks

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