Results 51 to 60 of about 7,293 (255)
Radiative forcing by contrails [PDF]
Annales Geophysicae, 1999 Abstract. A parametric study of the instantaneous radiative impact of contrails is presented using three different radiative transfer models for a series of model atmospheres and cloud parameters. Contrails are treated as geometrically and optically thin plane parallel homogeneous cirrus layers in a static atmosphere. The ice water content is varied as
R. Meerkötter +6 more
openaire +5 more sources
Contrails — a prototype of cirrus cloud studies since 80 years
Meteorologische Zeitschrift, 1997 The clouds often seen to be formed in the wake of aircraft are called condensation trails (Brewer 1946), contrails (Appleman 1953), or Kondensstreifen. Contrails form behind propeller-driven aircraft as well as behind jet aircraft.
Ulrich Schumann
doaj +1 more source
Potential impact of contrails on solar energy gain [PDF]
Atmospheric Measurement Techniques, 2015 The effect of contrails on global short-wave radiation (sum of direct and downward diffuse solar radiation) and on solar energy gain was investigated. The study was performed during days with high contrail persistence and focused on situations where the ...
P. Weihs +6 more
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Multi-Objective Flight Altitude Decision Considering Contrails, Fuel Consumption and Flight Time
Sustainability, 2020 The rapid growth of air travel and aviation emissions in recent years has contributed to an increase in climate impact. Contrails have been considered one of the main factors of the aviation-induced climate impact.
D. Xue, K. Ng, L. Hsu
semanticscholar +1 more source
Elementary GLOBE: To Spread or Not To Spread [PDF]
, 2008 A learning activity for the "Do You Know That Clouds Have Names?" book in the Elementary GLOBE series. Students will explore the difference between the three types of contrails, make observations of contrails outside, and record their observations ...
core
Contrail Modeling and Simulation [PDF]
Annual Review of Fluid Mechanics, 2016 There is large uncertainty in the radiative forcing induced by aircraft contrails, particularly after they transform to cirrus. It has recently become possible to simulate contrail evolution for long periods after their formation. We review the main physical processes and simulation efforts in the four phases of contrail evolution, namely the jet ...
Roberto Paoli, Karim Shariff
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How well can persistent contrails be predicted? An update
Atmospheric Chemistry and Physics. The total aviation effective radiative forcing is dominated by non-CO2 effects. The largest contributors to the non-CO2 effects are contrails and contrail cirrus.
S. Hofer, Klaus Gierens, S. Rohs
semanticscholar +1 more source
Contrail Formation Within Cirrus: Contrail Induced Perturbations and Cirrus Adjustments
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 8, 28 April 2026.Abstract Contrail formation constitutes a large fraction of the aviation climate impact. But only part of the effect has been studied in detail, as research focused on contrail formation in cloud‐free air. Even though it is known that the impact of contrail formation within cirrus can be detected in space‐born remote sensing data, little research has ...
Pooja Verma, Ulrike Burkhardt
wiley +1 more source
Airborne measurements of the nitric acid partitioning in persistent contrails [PDF]
Atmospheric Chemistry and Physics, 2009 This study reports the first systematic measurements of nitric acid (HNO<sub>3</sub>) uptake in contrail ice particles at typical aircraft cruise altitudes.
Th. Peter +13 more
doaj
H-alpha features with hot onsets. II. A contrail fibril
, 2016 The solar chromosphere observed in H-alpha consists mostly of narrow fibrils. The longest typically originate in network or plage and arch far over adjacent internetwork.
Rutten, R. J. +1 more
core +1 more source