Results 11 to 20 of about 52,672 (238)

A cloud detection neural network for above-aircraft clouds using airborne cameras

Frontiers in Remote Sensing, 2023
For aerosol, cloud, land, and ocean remote sensing, the development of accurate cloud detection methods, or cloud masks, is extremely important. For airborne passive remotesensing, it is also important to identify when clouds are above the aircraft since
Joseph Nied, Michael Jones, Michael Jones, Shane Seaman, Taylor Shingler, Johnathan Hair, Brian Cairns, David Van Gilst, Anthony Bucholtz, Sebastian Schmidt, Seethala Chellappan, Paquita Zuidema, Bastiaan Van Diedenhoven, Armin Sorooshian, Armin Sorooshian, Snorre Stamnes   +15 more
doaj   +1 more source

Contrail formation within cirrus: ICON-LEM simulations of the impact of cirrus cloud properties on contrail formation [PDF]

Atmospheric Chemistry and Physics, 2022
Contrail formation within natural cirrus introduces large perturbations in cirrus ice crystal number concentrations, leading to modifications in cirrus microphysical and optical properties.
P. Verma, P. Verma, U. Burkhardt
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Tropical Cirrus in Global Storm‐Resolving Models: 2. Cirrus Life Cycle and Top‐of‐Atmosphere Radiative Fluxes

Earth and Space Science, 2022
Cirrus clouds of various thicknesses and radiative characteristics extend over much of the tropics, especially around deep convection. They are difficult to observe due to their high altitude and sometimes small optical depths. They are also difficult to
S. M. Turbeville, J. M. Nugent, T. P. Ackerman, C. S. Bretherton, P. N. Blossey   +4 more
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Tropical Cirrus in Global Storm‐Resolving Models: 1. Role of Deep Convection

Earth and Space Science, 2022
Pervasive cirrus clouds in the upper troposphere and tropical tropopause layer (TTL) influence the climate by altering the top‐of‐atmosphere radiation balance and stratospheric water vapor budget.
J. M. Nugent, S. M. Turbeville, C. S. Bretherton, P. N. Blossey, T. P. Ackerman   +4 more
doaj   +1 more source

Differences in microphysical properties of cirrus at high and mid-latitudes [PDF]

Atmospheric Chemistry and Physics, 2023
Despite their proven importance for the atmospheric radiative energy budget, the effect of cirrus on climate and the magnitude of their modification by human activity is not well quantified. Besides anthropogenic pollution sources on the ground, aviation
E. De La Torre Castro, E. De La Torre Castro, E. De La Torre Castro, T. Jurkat-Witschas, A. Afchine, V. Grewe, V. Grewe, V. Hahn, V. Hahn, S. Kirschler, S. Kirschler, M. Krämer, M. Krämer, J. Lucke, J. Lucke, N. Spelten, H. Wernli, M. Zöger, C. Voigt, C. Voigt   +19 more
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Evidence of nitric acid uptake in warm cirrus anvil clouds during the NASA TC4 campaign [PDF]

, 2010
Uptake of HNO3 onto cirrus ice may play an important role in tropospheric NOx cycling. Discrepancies between modeled and in situ measurements of gas-phase HNO3 in the troposphere suggest that redistribution and removal mechanisms by cirrus ice have been ...
Bansemer, Aaron, Dibb, Jack E., Heymsfield, Andrew J, Rogers, David, Scheuer, Eric, Twohy, Cynthia   +5 more
core   +2 more sources

Long-Range Transport of Water Channelized through the Southern Subtropical Jet

Atmosphere, 2018
In this study, an air mass (containing a cirrus cloud) was detected by light detection and ranging (lidar) above São Paulo (Brazil) in June 2007 and tracked around the globe, thanks to Lagrangian calculations as well as ground-based and satellite ...
Eliane G. Larroza, Philippe Keckhut, Jean-Luc Baray, Walter M. Nakaema, Hélène Vérèmes, Eduardo Landulfo, Davide Dionisi, Sergey Khaykin, François Ravetta   +8 more
doaj   +1 more source

Direct Estimate of Cirrus Noise in Herschel Hi-GAL Images [PDF]

, 2010
In Herschel images of the Galactic plane and many star forming regions, a major factor limiting our ability to extract faint compact sources is cirrus confusion noise, operationally defined as the "statistical error to be expected in photometric ...
A. M. DiGiorgio, A. Noriega-Crespo, A. Roy, A. Traficante, Bernard, C. Brunt, D. Elia, F. Faustini, F. Strafella, G. Joncas, J. C. Mottram, J. F. Robitaille, J.-P. Bernard, Jeong, Kiss, Kiss, L. Calzoletti, M. Veneziani, M.-A. Miville-Deschênes, Miville-Deschênes, Miville-Deschênes, Molinari, Molinari, N. Billot, P. G. Martin, P. Natoli, R. Paladini, Roy, S. Molinari   +28 more
core   +2 more sources

Effect of Residual and Transformation Choice on Computational Aspects of Biomechanical Parameter Estimation of Soft Tissues

Bioengineering, 2019
Several nonlinear and anisotropic constitutive models have been proposed to describe the biomechanical properties of soft tissues, and reliably estimating the unknown parameters in these models using experimental data is an important step towards ...
Ankush Aggarwal
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In Situ Measurements of Cirrus Clouds on a Global Scale

Atmosphere, 2020
Observations of high-altitude cirrus clouds are reported from measurements made during the routine monitoring of cloud properties on commercial aircraft as part of the In-Service Aircraft for a Global Observing System.
Gary Lloyd, Martin Gallagher, Thomas Choularton, Martina Krämer, Petzold Andreas, Darrel Baumgardner   +5 more
doaj   +1 more source