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Sonde Experiments For Comparative Measurements Of Optical Turbulence


Sonde Experiments For Comparative Measurements Of Optical Turbulence
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Sonde Experiments For Comparative Measurements Of Optical Turbulence


Sonde Experiments For Comparative Measurements Of Optical Turbulence
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Author : J. H. Brown
language : en
Publisher:
Release Date : 1982

Sonde Experiments For Comparative Measurements Of Optical Turbulence written by J. H. Brown and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Atmospheric temperature categories.


Five different instruments were used in multiple experiments to measure atmospheric turbulence in the form of the refractive structure constant, C sub n squared. These included UHF radar, optical scintillometer, modified radiosondes, AFGL thermosondes, and aircraft micro-thermal measurements. Described here are the radiosonde and thermosonde electronics and their calibrations. The data reduction scheme is described and a brief program description is given. Although the different instruments gave measurements somewhat separated in space and time, first results show good agreement between the radar, scintillometer, and thermosonde measurements.



Sonde Experiments For Comparative Measurements Of Optical Turbulence


Sonde Experiments For Comparative Measurements Of Optical Turbulence
DOWNLOAD
Author : J. H. Brown
language : en
Publisher:
Release Date : 1982

Sonde Experiments For Comparative Measurements Of Optical Turbulence written by J. H. Brown and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Atmospheric temperature categories.


Five different instruments were used in multiple experiments to measure atmospheric turbulence in the form of the refractive structure constant, C sub n squared. These included UHF radar, optical scintillometer, modified radiosondes, AFGL thermosondes, and aircraft micro-thermal measurements. Described here are the radiosonde and thermosonde electronics and their calibrations. The data reduction scheme is described and a brief program description is given. Although the different instruments gave measurements somewhat separated in space and time, first results show good agreement between the radar, scintillometer, and thermosonde measurements.



A Nighttime Structure Model Of Atmospheric Optical Turbulence C2 N Subscript Derived From Thermosonde And High Resolution Rawinsonde Measurements


A Nighttime Structure Model Of Atmospheric Optical Turbulence C2 N Subscript Derived From Thermosonde And High Resolution Rawinsonde Measurements
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Author : James H. Brown
language : en
Publisher:
Release Date : 1993

A Nighttime Structure Model Of Atmospheric Optical Turbulence C2 N Subscript Derived From Thermosonde And High Resolution Rawinsonde Measurements written by James H. Brown and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Atmospheric turbulence categories.




Models For The Aerosols Of The Lower Atmosphere And The Effects Of Humidity Variations On Their Optical Properties


Models For The Aerosols Of The Lower Atmosphere And The Effects Of Humidity Variations On Their Optical Properties
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Author : Eric P. Shettle
language : en
Publisher:
Release Date : 1979

Models For The Aerosols Of The Lower Atmosphere And The Effects Of Humidity Variations On Their Optical Properties written by Eric P. Shettle and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Aerosols categories.




Scientific And Technical Aerospace Reports


Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1994

Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Aeronautics categories.




Technical Abstract Bulletin


Technical Abstract Bulletin
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Author :
language : en
Publisher:
Release Date : 1982

Technical Abstract Bulletin written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Science categories.




Study Of Possible Solar Heating Effects On Thermosonde Probes


Study Of Possible Solar Heating Effects On Thermosonde Probes
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Author : James H. Brown
language : en
Publisher:
Release Date : 1989

Study Of Possible Solar Heating Effects On Thermosonde Probes written by James H. Brown and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Astronomical instruments categories.


Thermosonde data reveals a diurnal daytime shift in measured levels of C square (n) in the free atmosphere. The shift is manifested in two ways. First, an apparent offset in the smallest measured values of C square (n) exists. Secondly, the curve of the average profile shows an enhancement over nighttime profiles. Related optical and radar measurements have indicated that differences between day and night probably exist, but because of limited instrumental resolution and altitude capabilities those results are inconclusive. Several hypotheses have been put forward in this paper concerning possible instrumental or solar based sources of data contamination. We have examined the possibility that solar radiation causes probe heating with subsequent instrumental effects. Calculation, computer simulation, and direct measurements have shown that the sun heats the body of the probe sensor a couple of degrees above the ambient and that the level of heating depends upon the solar aspect angle and magnitude and direction of air flow over the probe. A small but insignificant AC type effect can result from improper probe geometry or probe mismatch together with a coupling of solar heating with velocity turbulence. Transient and DC type effects can occur, but measured, processed, and transmitted root mean square C square (n) information is not likely to contain instrumental contamination.



Nonlinear Optical Beam Manipulation And High Energy Beam Propagation Through The Atmosphere


Nonlinear Optical Beam Manipulation And High Energy Beam Propagation Through The Atmosphere
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Author : Robert A. Fisher
language : en
Publisher:
Release Date : 1989

Nonlinear Optical Beam Manipulation And High Energy Beam Propagation Through The Atmosphere written by Robert A. Fisher and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Technology & Engineering categories.




Middle Atmosphere Program


Middle Atmosphere Program
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Author :
language : en
Publisher:
Release Date : 1981

Middle Atmosphere Program written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Air categories.




Handbook Of Geophysics And Space Environments


Handbook Of Geophysics And Space Environments
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Author : U.S. Air Force Geophysics Laboratory
language : en
Publisher:
Release Date : 1985

Handbook Of Geophysics And Space Environments written by U.S. Air Force Geophysics Laboratory and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Geophysics categories.