Results 61 to 70 of about 18,965 (247)

Operational all‐sky assimilation of geostationary infrared water‐vapour channels in the regional ICON‐D2 model with an ensemble Kalman filter

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Though many studies have shown potential benefit in assimilating all‐sky infrared radiances from geostationary satellites, at numerical weather prediction centres it is still common practice to assimilate clear‐sky radiances. We present the operationalization of the all‐sky assimilation of the spinning enhanced visible and infrared imager (SEVIRI ...
Annika Schomburg, Christoph Schraff, Christina Köpken‐Watts, Klaus Stephan, Liselotte Schühl, Robin Faulwetter   +5 more
wiley   +1 more source

Composite Materials For Creation Of Anti-Icing Elements And Other Aircraft Systems

e-Journal of Nondestructive Testing
The relevance of the development is related to the safety of aircraft flights, which is significantly affected by aircraft icing. The reliability of the anti-icing system (AIC) is a prerequisite for all modern aircraft, as well as for high-altitude ...
Mykhail Leonidovych Kazakevych, Volodymyr M. Kazakevych   +1 more
doaj   +1 more source

Microphysics and interactions of aerosols and fog on the northwest Atlantic Ocean

Quarterly Journal of the Royal Meteorological Society, EarlyView.
In the Grand Banks, aerosol size distributions were bimodal, aerosol and fog droplet concentrations were low, and fogs were shorter (<12 hours). In contrast, near Sable Island, aerosol size distributions had a single broad mode that was likely influenced by continental emissions, corresponding with higher aerosol and droplet concentrations as well as ...
Gianina Giacosa, Lauren Robinson, David G. Ortiz‐Suslow, Ryan Yamaguchi, Edward Creegan, Phillipe Gauvin‐Bourdon, Leyla Salehpoor, Leigh R. Crilley, Trevor C. VandenBoer, Qing Wang, Harindra J. S. Fernando, Rachel Y.‐W. Chang   +11 more
wiley   +1 more source

Hybrid System Combining Ice-Phobic Coating and Electrothermal Heating for Wing Ice Protection

Aerospace, 2020
In-flight icing for aircraft is a large concern for all those involved in aircraft operations. Generally, an electric heater has been used to prevent in-flight icing. A hybrid anti-icing system combining ice-phobic coating and electrothermal heating (ICE-
Katsuaki Morita, Shigeo Kimura, Hirotaka Sakaue   +2 more
doaj   +1 more source

Evaluating the realism of double moment parameterised particle size distributions in a midlatitude frontal ice cloud with complex microphysics

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Uncertainties in the representation of ice particle size distributions (PSDs) cause inaccuracies in parameterisations of clouds. In this study, observed PSDs from a midlatitude frontal case study are compared with gamma PSDs with the same concentration and ice water content.
Rosie M. Mammatt, Christopher D. Westbrook, Jonathan Crosier, Karina McCusker   +3 more
wiley   +1 more source

Fast Evaluation of Aircraft Icing Severity Using Machine Learning Based on XGBoost

Aerospace, 2020
Aircraft icing represents a serious hazard in aviation which has caused a number of fatal accidents over the years. In addition, it can lead to substantial increase in drag and weight, thus reducing the aerodynamics performance of the airplane.
Sibo Li, Jingkun Qin, Miao He, Roberto Paoli   +3 more
doaj   +1 more source

Self‐Repairing Performance of Slippery Liquid Infused Porous Surfaces for Durable Anti‐Icing

Advanced Materials Interfaces, 2022
Icing accretion on aircraft surfaces has threatened the flight safety so far. Slippery liquid infused porous surface (SLIPS) is an emerging anti‐icing method. Many studies have found that SLIPS has self‐repairing phenomena.
Yuan Yuan, Huiying Xiang, Guoyong Liu, Liang Wang, Huilin Liu, Ruijin Liao   +5 more
doaj   +1 more source

Ground‐truthing of satellite imagery to assess seabird colony size: A test using Adélie penguins

Remote Sensing in Ecology and Conservation, EarlyView.
Adélie penguin colony size can be estimated from space using very high‐resolution (VHR; 0.3–0.6 m resolution) satellite imagery due to the contrast between their guano stain and the surrounding terrain. Our study assessed the utility of VHR imagery for making indirect assessments of changes in colony size.
Alexandra J. Strang, Dean P. Anderson, Esme Robinson, Grant Ballard, Annie E. Schmidt, David G. Ainley, Kerry Barton, Fiona Shanhun, Elissa Z. Cameron, Michelle A. LaRue   +9 more
wiley   +1 more source

Current Methods Modeling and Simulating Icing Effects on Aircraft Performance, Stability, Control [PDF]

, 2010
Icing alters the shape and surface characteristics of aircraft components, which results in altered aerodynamic forces and moments caused by air flow over those iced components.
Barnhart, Billy P., Lee, Sam, Ratvasky, Thomas P.   +2 more
core   +2 more sources

Semi‐automated seal detection on the Western Antarctic Peninsula: an unsupervised machine learning approach for detecting ice seals in aerial survey data

Remote Sensing in Ecology and Conservation, EarlyView.
This study presents a semi‐automated, rule‐based image analysis pipeline to detect ice seals in aerial surveys of the Western Antarctic Peninsula during an unusually low sea ice year. By using simple hierarchical clustering instead of deep learning, the method substantially reduced human annotation effort while achieving 82% recall, identifying 758 ...
Claire McGinnity, Connor C.G. Bamford, Nathan Fenney, Andrew Fleming, Jaume Forcada, Michael S. Tift, Luis A. Hückstädt, Daniel P. Costa, Peter T. Fretwell   +8 more
wiley   +1 more source