Results 281 to 290 of about 3,413,392 (339)

VISUAL OPTICS AND AIRCRAFT OBSERVATION

Optometry and Vision Science, 1943
J. Spooner
semanticscholar   +2 more sources

Multiparameter radar and in situ aircraft observation of graupel and hail

IEEE Transactions on Geoscience and Remote Sensing, 2000
A. El-Magd, V. Chandrasekar, V. Bringi, W. Strapp   +3 more
semanticscholar   +3 more sources

Objective Verification of Clear-Air Turbulence (CAT) Diagnostic Performance in China Using In-Situ Aircraft Observation

Journal of Atmospheric and Oceanic Technology, 2022
This study analyzes the spatial and temporal distribution characteristics of the in-situ aircraft observations in the middle and higher troposphere in 2019.
Boyan Hu, Jinfeng Ding, Gang Liu, Jianping Tang   +3 more
semanticscholar   +1 more source

Spectral analysis of an aircraft observation of gravity waves

Quarterly Journal of the Royal Meteorological Society, 1971
D. Axford
semanticscholar   +3 more sources

Field observation of tornadic supercells by multiple autonomous fixed‐wing unmanned aircraft

J. Field Robotics, 2020
This paper presents the results of the design and field deployment of multiple autonomous fixed‐wing unmanned aircraft into supercell thunderstorms.
Eric W. Frew, B. Argrow, Steven S Borenstein, Sara Swenson, C. A. Hirst, H. Havenga, A. Houston   +6 more
semanticscholar   +1 more source

Analysis of observed aircraft-to-aircraft separations

2008 Integrated Communications, Navigation and Surveillance Conference, 2008
As air traffic demand continues to increase in the coming years, the need for concepts, procedures and tools that can improve airspace efficiency will likewise increase. Reduction of terminal and en-route separation minima has been the focus of many of the concepts and emerging technologies developed to respond to this need.
Stephen Szurgyi, Sanjiv Shresta, Dejan Neskovic, James DeArmon, Scott Williams   +4 more
openaire   +1 more source

Aircraft observations of sea-breeze frontal structure

Quarterly Journal of the Royal Meteorological Society, 1999
AbstractDetailed aircraft observations of sea‐breeze frontal structure and dynamics are presented for two cases of well defined sea‐breeze fronts near the east coast of England. In the first case the sea‐breeze was advancing into a well mixed convective boundary layer with strong turbulence and an offshore breeze of around 3 m s‐1.
R. Wood, I. M. Stromberg, P. R. Jonas
openaire   +1 more source

Aircraft observations near jet streams

Quarterly Journal of the Royal Meteorological Society, 1963
AbstractThe results of an analysis of 22 flights through jet streams by aircraft of the Meteorological Research Flight are presented. The average distributions of wind speed, vertical and horizontal wind shear, potential temperature, water vapour, cirrus cloud and ozone are obtained in relation to the jet core, and are discussed in relation to existing
J. Briggs, W. T. Roach
openaire   +1 more source

Melting layer observations with radar and aircraft

Proceedings of IGARSS '94 - 1994 IEEE International Geoscience and Remote Sensing Symposium, 2002
Multiparameter radar measurements with the DLR polarimetric radar are combined with a vertical looking Doppler radar to study the melting of snow. The interpretation of the microphysical processes during melting by radar measurements is supported by in situ observations of the melting particles. >
Hagen, M. (Vortragender), Hubbert, J. (1), Richter, C. (2), Bringi, V.N. (1), Meischner, P.   +4 more
openaire   +2 more sources