Sonde Experiments For Comparative Measurements Of Optical Turbulence
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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
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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.
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.
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.
Environmental Research Papers
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Author :
language : en
Publisher:
Release Date :
Environmental Research Papers written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with Environmental geology categories.
Middle Atmosphere Program
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Author : Chui-hsun Liu
language : en
Publisher:
Release Date : 1989
Middle Atmosphere Program written by Chui-hsun Liu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Middle atmosphere categories.
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
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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.
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.
Middle Atmosphere Program
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Author : S. A. Bowhill
language : en
Publisher:
Release Date : 1986
Middle Atmosphere Program written by S. A. Bowhill and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Atmosphere categories.