Results 41 to 50 of about 480 (177)

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 (HNO₃) uptake in contrail ice particles at typical aircraft cruise altitudes.
Th. Peter, U. Weers, S. Borrmann, M. Szakáll, M. de Reus, N. Spelten, R. Bauer, M. Krämer, C. Schiller, H. Schlager, P. Stock, B. Kärcher, C. Voigt, D. Schäuble   +13 more
doaj  

Satellite‐Derived Leaf Photosynthetic Capacity Data Set Improves Atmospheric Inversion of Terrestrial Carbon Fluxes

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Accurately estimating the terrestrial carbon sink is crucial for understanding the global carbon cycle. Here, we examine how different parameterizations of the key leaf photosynthetic capacity parameter, namely the maximum Rubisco carboxylation rate normalized to 25°C (Vcmax25), influence terrestrial carbon flux estimates within an atmospheric
Lei Shu, Jing M. Chen, Mingzhu Xu, Yihong Liu, Fei Jiang, Weimin Ju   +5 more
wiley   +1 more source

Differentiating Solar Radiation Modification Field Experiments: Scale, Technical Characteristics, and Governance Implications

Earth's Future, Volume 14, Issue 5, May 2026.
Abstract Proposed solar radiation modification (SRM) field experiments are receiving growing scientific and policy attention, with several localized experiments having occurred or under development. While they may be critical for improving technical understanding and reducing uncertainties, SRM field experiments remain controversial and inadequately ...
B. H. Redmond Roche, I. Hernandez‐Galindo, A. Määttänen, J. C. Moore, O. Boucher, B. M. Dollner, A. Duffey, B. Gasparini, J. Henneberger, A. N. Koyun, D. McGrath, I. Steinke, J. Vinders, D. Visioni, P. J. Irvine   +14 more
wiley   +1 more source

Global Impact of Aviation Contrails

Aerospace
Avoiding contrails is one of the recent trends in ATM. Aviation contrails are considered a significant non-CO2 environmental factor worth avoiding even with a CO2 increase (lower-level cruise or horizontal avoidance, both burning more fuel).
Octavian Thor Pleter, Cristian Emil Constantinescu   +1 more
doaj   +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

Reducing global warming by airline contrail avoidance: A case study of annual benefits for the contiguous United States

Transportation Research Interdisciplinary Perspectives, 2019
High thin clouds are generated by airliners when hot exhaust gases and water vapor from the jet engines mix with cold, humid air to form high thin clouds.
Denis Avila, Lance Sherry, Terry Thompson   +2 more
doaj   +1 more source

Atmospheric Adjustments to In Situ Cirrus Formation in Ice Supersaturated Regions

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 8, 28 April 2026.
Abstract High‐level ice clouds exert a net warming on the climate system because their greenhouse effect outweighs their albedo effect. Focusing on in‐situ cirrus, their formation involves the conversion of upper‐tropospheric water vapor into ice crystals.
Jérémie Juvin‐Quarroz, Audran Borella, Patryk Kiepas, Thomas Dubos, Olivier Boucher, Nicolas Bellouin   +5 more
wiley   +1 more source

Evolution of the water cluster in pore condensation

Droplet, Volume 5, Issue 2, April 2026.
In pore condensation, lower contact angles reduce molecular displacement (60%) and potential energy (10%), enhancing vapor capture tenfold. Pores restrict water molecule mobility, promoting condensation. On hydrophobic surfaces (124∘$^\circ$), pores stabilize embryos, ensuring uniform condensation within pores, boosting nucleation efficiency.
Boxuan Cui, Longfei Chen, Zheng Xu, Kang Pan, Shenghui Zhong   +4 more
wiley   +1 more source

Contrail formation on ambient aerosol particles for aircraft with hydrogen combustion: a box model trajectory study [PDF]

Atmospheric Chemistry and Physics
Future air traffic using (green) hydrogen (H2) promises zero carbon emissions, but the effects of contrails from this new technology have hardly been investigated.
A. Bier, S. Unterstrasser, J. Zink, D. Hillenbrand, T. Jurkat-Witschas, A. Lottermoser   +5 more
doaj   +1 more source

Contrail life cycle and properties from 1 year of MSG/SEVIRI rapid-scan images [PDF]

Atmospheric Chemistry and Physics, 2015
The automatic contrail tracking algorithm (ACTA) – developed to automatically follow contrails as they age, drift and spread – enables the study of a large number of contrails and the evolution of contrail properties with time. In this paper we present a
M. Vázquez-Navarro, H. Mannstein, S. Kox   +2 more
doaj   +1 more source