DETERMINATION OF AEROSOL SIZE DISTRIBUTION FROM BACKSCATTERED RADIATION BY MEANS OF "PSEUDO" EMPIRICAL ORTHOGONAL FUNCTIONS (SCATTERING).

Persistent Link:
http://hdl.handle.net/10150/188140
Title:
DETERMINATION OF AEROSOL SIZE DISTRIBUTION FROM BACKSCATTERED RADIATION BY MEANS OF "PSEUDO" EMPIRICAL ORTHOGONAL FUNCTIONS (SCATTERING).
Author:
BEN-DAVID, AVISHAY.
Issue Date:
1986
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
The amount of information (types of solutions, accuracy and moments of the solution) about tropospheric rural aerosol size distribution that can in theory be obtained from backscattered measurements, without using any additional information about the anticipated solution, has been discussed. In practice, additional assumptions (constraints) must be used to solve for aerosol size distribution. The inferred solution reflects those assumptions and is therefore not objective. The quality of the solution depends on the applicability of the constraints to the given problem. A library of pseudo-empirical functions is used to form a set of orthogonal basis functions. It is assumed that any unknown aerosol size distribution may be constructed from a linear sum of these basis functions. The problem then becomes one of solving for the unknown coefficients of the basis functions. A solution with a smoothing constraint and a positivity constraint has been developed. Results of the method, when backscattered radiation is used as measurements, are presented. Discussion on the limitations of the method and the effects upon the solution of the different assumptions that are used is given. Some possible uses of the solution are considered.
Type:
text; Dissertation-Reproduction (electronic)
Keywords:
Aerosols -- Distribution.; Light -- Scattering.
Degree Name:
Ph.D.
Degree Level:
doctoral
Degree Program:
Atmospheric Sciences; Graduate College
Degree Grantor:
University of Arizona
Advisor:
Herman, Ben

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleDETERMINATION OF AEROSOL SIZE DISTRIBUTION FROM BACKSCATTERED RADIATION BY MEANS OF "PSEUDO" EMPIRICAL ORTHOGONAL FUNCTIONS (SCATTERING).en_US
dc.creatorBEN-DAVID, AVISHAY.en_US
dc.contributor.authorBEN-DAVID, AVISHAY.en_US
dc.date.issued1986en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractThe amount of information (types of solutions, accuracy and moments of the solution) about tropospheric rural aerosol size distribution that can in theory be obtained from backscattered measurements, without using any additional information about the anticipated solution, has been discussed. In practice, additional assumptions (constraints) must be used to solve for aerosol size distribution. The inferred solution reflects those assumptions and is therefore not objective. The quality of the solution depends on the applicability of the constraints to the given problem. A library of pseudo-empirical functions is used to form a set of orthogonal basis functions. It is assumed that any unknown aerosol size distribution may be constructed from a linear sum of these basis functions. The problem then becomes one of solving for the unknown coefficients of the basis functions. A solution with a smoothing constraint and a positivity constraint has been developed. Results of the method, when backscattered radiation is used as measurements, are presented. Discussion on the limitations of the method and the effects upon the solution of the different assumptions that are used is given. Some possible uses of the solution are considered.en_US
dc.typetexten_US
dc.typeDissertation-Reproduction (electronic)en_US
dc.subjectAerosols -- Distribution.en_US
dc.subjectLight -- Scattering.en_US
thesis.degree.namePh.D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.disciplineAtmospheric Sciencesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorHerman, Benen_US
dc.identifier.proquest8613424en_US
dc.identifier.oclc697514847en_US
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