Results 91 to 100 of about 5,933 (229)
Contrail Modeling of ECLIF2/ND‑MAX flights: Effects of nvPM Particle Numbers and Fuel Sulfur Content
The formation of contrail ice particles under the conditions observed during the ECLIF2/ND‑MAX flight campaign was simulated to understand two specific aspects of the contrail measurements.
Stephen H. Jones, Richard C. Miake-Lye
doaj +1 more source
Radiative Effects of contrails and contrail cirrus
Contrails and contrail-cirrus contribute a large share to aviation’s greenhouse forcing and strategies to mitigate their adverse effects have been quested after for many years now. The magnitude of radiative forcing due to contrails and contrail-cirrus is yet uncertain and, surprisingly, many years of research and many measurement campaigns could not ...
openaire +2 more sources
Leveraging Thousands of Contrail Observations from GLOBE Citizen Scientists [PDF]
The GLOBE (Global Learning and Observations to Benefit the Environment) Program is NASA's largest and longest-operating citizen science program contributing Earth observations.
Amos, Helen M. +4 more
core +1 more source
Ice supersaturation and the potential for contrail formation in a changing climate [PDF]
Ice supersaturation (ISS) in the upper troposphere and lower stratosphere is important for the formation of cirrus clouds and long-lived contrails. Cold ISS (CISS) regions (taken here to be ice-supersaturated regions with temperature below 233 K) are ...
Irvine, Emma A., Shine, Keith P.
core +2 more sources
Targeted use of paraffinic kerosene: Potentials and implications
Aviation contributes to anthropogenic climate change mainly by contrails, CO2 and NOx emissions, whereof contrails are considered the largest single contributor to the radiative forcing from aviation.
Gunnar Quante +2 more
doaj +1 more source
International audienceWe combined high resolution aircraft flight data from the EU Fifth Framework Programme project AERO2k with analysis data from the ECMWF's integrated forecast system to calculate diurnally resolved 3-D contrail cover. Calibrating for
Forster, P., Stuber, N.
core +1 more source
Evaluation of the use of radiosonde humidity data to predict the occurrence of persistent contrails [PDF]
Regular visual observations of persistent contrails over Reading, UK, have been used to evaluate radiosonde measurements of temperature and humidity defining cold ice-supersaturated atmospheric regions which are assumed to be a necessary condition for ...
Appleman +37 more
core +1 more source
This PDF document discusses a field activity for K-12 students. The purpose of the activity is to observe type and cover of clouds including contrails.
GLOBE Program of the United States of America
core
Laboratory and modeling studies on the effects of water and soot emissions and ambient conditions on the properties of contrail ice particles in the jet regime [PDF]
Contrails and contrail-induced cirrus clouds are identified as the most uncertain components in determining aviation impacts on global climate change. Parameters affecting contrail ice particle formation immediately after the engine exit plane (< 5 s in ...
A. J. Beyersdorf +11 more
core +1 more source
Stratospheric aircraft exhaust plume and wake chemistry studies [PDF]
This report documents progress to date in an ongoing study to analyze and model emissions leaving a proposed High Speed Civil Transport (HSCT) from when the exhaust gases leave the engine until they are deposited at atmospheric scales in the stratosphere.
Brown, R. C. +9 more
core +1 more source

