Characterizing The Severe Turbulence Environments Associated With Commercial Aviation Accidents Part 1 44 Case Study Synoptic Observational Analyses
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Characterizing the severe turbulence environments associated with commercial aviation accidents Part I 44 case study synoptic observational analyses
Author | : Anonim |
Publsiher | : DIANE Publishing |
Total Pages | : 57 |
Release | : 2024 |
Genre | : Electronic Book |
ISBN | : 9781428995390 |
Download Characterizing the severe turbulence environments associated with commercial aviation accidents Part I 44 case study synoptic observational analyses Book in PDF, Epub and Kindle
Characterizing the Severe Turbulence Environments Associated with Commercial Aviation Accidents Part 1 44 Case Study Synoptic Observational Analyses
Author | : National Aeronautics and Space Administration (NASA) |
Publsiher | : Createspace Independent Publishing Platform |
Total Pages | : 58 |
Release | : 2018-05-29 |
Genre | : Electronic Book |
ISBN | : 1720443637 |
Download Characterizing the Severe Turbulence Environments Associated with Commercial Aviation Accidents Part 1 44 Case Study Synoptic Observational Analyses Book in PDF, Epub and Kindle
A 44 case study analysis of the large-scale atmospheric structure associated with development of accident-producing aircraft turbulence is described. Categorization is a function of the accident location, altitude, time of year, time of day, and the turbulence category, which classifies disturbances. National Centers for Environmental Prediction Reanalyses data sets and satellite imagery are employed to diagnose synoptic scale predictor fields associated with the large-scale environment preceding severe turbulence. These analyses indicate a predominance of severe accident-producing turbulence within the entrance region of a jet stream at the synoptic scale. Typically, a flow curvature region is just upstream within the jet entrance region, convection is within 100 km of the accident, vertical motion is upward, absolute vorticity is low, vertical wind shear is increasing, and horizontal cold advection is substantial. The most consistent predictor is upstream flow curvature and nearby convection is the second most frequent predictor.Kaplan, Michael L. and Huffman, Allan W. and Lux, Kevin M. and Charney, Joseph J. and Riordan, Allan J. and Lin, Yuh-Lang and Proctor, Fred H. (Technical Monitor)Langley Research CenterTURBULENCE EFFECTS; AIRCRAFT ACCIDENTS; AIRCRAFT STABILITY; CURVATURE; VORTICITY; ADVECTION; AIRLINE OPERATIONS; COMMERCIAL AIRCRAFT; CONVECTION; POSITION (LOCATION); SATELLITE IMAGERY; UPSTREAM; VERTICAL MOTION; WIND SHEAR
Characterizing the Severe Turbulence Environments Associated with Commercial Aviation Accidents
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 48 |
Release | : 2003 |
Genre | : Turbulence |
ISBN | : NASA:31769000715550 |
Download Characterizing the Severe Turbulence Environments Associated with Commercial Aviation Accidents Book in PDF, Epub and Kindle
A 44 case study analysis of the large-scale atmospheric structure associated with development of accident-producing aircraft turbulence is described. Categorization is a function of the accident location, altitude, time of year, time of day, and the turbulence category, which classifies disturbances. National Centers for Environmental Prediction Reanalyses data sets and satellite imagery are employed to dang- nose synoptic scale predictor fields associated with the large-scale environment preceding severe turbulence. These analyses indicate a predominance of severe accident-producing turbulence within the entrance region of ajet stream at the synoptic scale. Typically, a flow curvature region is just upstream within the jet entrance region, convection is within 100 krn of the accident, vertical motion is upward, absolute vorticity is low, vertical wind shear is increasing, and horizontal cold advection is substantial.
Aviation Turbulence
Author | : Robert Sharman,Todd Lane |
Publsiher | : Springer |
Total Pages | : 523 |
Release | : 2016-06-27 |
Genre | : Technology & Engineering |
ISBN | : 9783319236308 |
Download Aviation Turbulence Book in PDF, Epub and Kindle
Anyone who has experienced turbulence in flight knows that it is usually not pleasant, and may wonder why this is so difficult to avoid. The book includes papers by various aviation turbulence researchers and provides background into the nature and causes of atmospheric turbulence that affect aircraft motion, and contains surveys of the latest techniques for remote and in situ sensing and forecasting of the turbulence phenomenon. It provides updates on the state-of-the-art research since earlier studies in the 1960s on clear-air turbulence, explains recent new understanding into turbulence generation by thunderstorms, and summarizes future challenges in turbulence prediction and avoidance.
Characterizing the Severe Turbulence Environments Associated with Commercial Aviation Accidents Part 2 Hydrostatic Mesobeta Scale Numerical Simulations of Supergradient Wind Flow and Streamwise Ageostrophic Frontogenesis
Author | : National Aeronautics and Space Administration (NASA) |
Publsiher | : Createspace Independent Publishing Platform |
Total Pages | : 46 |
Release | : 2018-05-29 |
Genre | : Electronic Book |
ISBN | : 1720443882 |
Download Characterizing the Severe Turbulence Environments Associated with Commercial Aviation Accidents Part 2 Hydrostatic Mesobeta Scale Numerical Simulations of Supergradient Wind Flow and Streamwise Ageostrophic Frontogenesis Book in PDF, Epub and Kindle
Simulation experiments reveal key processes that organize a hydrostatic environment conducive to severe turbulence. The paradigm requires juxtaposition of the entrance region of a curved jet stream, which is highly subgeostrophic, with the entrance region of a straight jet stream, which is highly supergeostrophic. The wind and mass fields become misphased as the entrance regions converge resulting in the significant spatial variation of inertial forcing, centripetal forcing, and along- and cross-stream pressure gradient forcing over a mesobeta scale region. This results in frontogenesis and the along-stream divergence of cyclonic and convergence of cyclonic ageostrophic vertical vorticity. The centripetally forced mesoscale front becomes the locus of large gradients of ageostrophic vertical vorticity along an overturning isentrope. This region becomes favorable for streamwise vorticity gradient formation enhancing the environment for organization of horizontal vortex tubes in the presence of buoyant forcing.Kaplan, Michael L. and Huffman, Allan W. and Lux, Kevin M. and Cetola, Jeffrey D. and Charney, Joseph J. and Riordan, Allen J. and Lin, Yuh-Lang and Waight, Kenneth T., III and Proctor, Fred (Technical Monitor)Langley Research CenterSIMULATION; HYDROSTATICS; TURBULENCE; GEOSTROPHIC WIND; CIVIL AVIATION; COMMERCIAL AIRCRAFT; AIRCRAFT ACCIDENTS; JET STREAMS (METEOROLOGY); CENTRIPETAL FORCE; PRESSURE GRADIENTS; VORTICITY; FRONTS (METEOROLOGY)
Conference on Aviation Range and Aerospace Meteorology
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 690 |
Release | : 2024 |
Genre | : Aids to air navigation |
ISBN | : PSU:000046771223 |
Download Conference on Aviation Range and Aerospace Meteorology Book in PDF, Epub and Kindle
Aviation Weather for Pilots and Flight Operations Personnel
Author | : United States. Federal Aviation Administration,United States. Flight Standards Service |
Publsiher | : Unknown |
Total Pages | : 250 |
Release | : 1975 |
Genre | : Meteorology |
ISBN | : UCAL:B4118122 |
Download Aviation Weather for Pilots and Flight Operations Personnel Book in PDF, Epub and Kindle
Lightning Protection of Aircraft
Author | : Franklin Fisher,J. Plumer |
Publsiher | : CreateSpace |
Total Pages | : 564 |
Release | : 2012-07-13 |
Genre | : Electronic Book |
ISBN | : 1478241527 |
Download Lightning Protection of Aircraft Book in PDF, Epub and Kindle
This book is an attempt to present under one cover the current state of knowledge concerning the potential lightning effects on aircraft and that means that are available to designers and operators to protect against these effects. The impetus for writing this book springs from two sources- the increased use of nonmetallic materials in the structure of aircraft and the constant trend toward using electronic equipment to handle flight-critical control and navigation function.