Statistical Contrail Forecasting
Journal of Applied Meteorology, 2001 Abstract The current operational Air Force Weather Agency condensation trail (contrail) forecast technique is based on the Appleman algorithm, developed in the 1950s, with minor modifications. The Appleman algorithm requires accurate measurements or forecasts of ambient flight-level temperature, relative humidity, and pressure, as well as the amount of
Artie Jackson +3 more
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Three-Dimensional Trajectory Design for Reducing Climate Impact of Trans-Atlantic Flights [PDF]
, 2014 The impact of aircraft emissions and contrails on the environment adds an additional aspect to aircraft trajectory optimization. This study developed a three-dimensional trajectory optimization algorithm for trans-Atlantic flights in cruise to generate ...
Chen, Neil Y. +3 more
core +1 more source
ETO cloud studies for FIRE 2, part 1 [PDF]
This research program in support of Project FIRE (First ISCCP Regional Experiment) involved two efforts. The results of the first effort, which were in direct support of the Extended Time Observations (ETO) component, are described here.
Sassen, Kenneth
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A Linear Programming Approach to the Development of Contrail Reduction Strategies Satisfying Operationally Feasible Constraints [PDF]
, 2012 A class of strategies has been proposed to reduce contrail formation in the United States airspace. A 3D grid based on weather data and the cruising altitude level of aircraft is adjusted to avoid the persistent contrail potential area with the ...
Chen, Neil Yi-Nan +3 more
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Numerical simulations of contrail-to-cirrus transition – Part 1: An extensive parametric study [PDF]
Atmospheric Chemistry and Physics, 2010 Simulations of contrail-to-cirrus transition over up to 6 h were performed using a LES-model. The sensitivity of microphysical, optical and geometric contrail properties to relative humidity RH<sub><i>i</i></sub>, temperature < ...
S. Unterstrasser, K. Gierens
doaj
Evaluation of Contrail Reduction Strategies Based on Environmental and Operational Costs [PDF]
This paper evaluates a set of contrail reduction strategies based on environmental and operational costs. A linear climate model was first used to convert climate effects of carbon dioxide emissions and aircraft contrails to changes in Absolute Global ...
Chen, Neil Y. +3 more
core +1 more source
Instrument Construction, Site Selection and Set-Up [PDF]
, 2003 This resource provides guidance on site selection for the GLOBE Atmosphere data collection protocols. Instructions for building an instrument shelter, a snowboard, an ozone measurement station, and a wind direction instrument are included.
The GLOBE Program, UCAR (University Corporation for Atmospheric Research)
core
Anthropogenic CO2 flux constraints in the Tokyo Bay Area from Lagrangian diffusive backward trajectories and high resolution in situ measurements [PDF]
, 2012 Machida, T. +11 more
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Contrails, contrail cirrus, and ship tracks
, 2006 The following text is an enlarged version of the conference tutorial lecture on contrails, contrail cirrus, and ship tracks. I start with a general introduction into aerosol effects on clouds. Contrail formation and persistence, aviation’s share to cirrus trends and ship tracks are treated then.
openaire +2 more sources
Environmental Research LettersClouds produced by aircraft (known as contrails) contribute over half of the positive radiative forcing from aviation, but the size of this warming effect is highly uncertain. Their radiative effect is highly dependent on the microphysical properties and
Edward Gryspeerdt +6 more
doaj +1 more source