Atmospheric Temperature Profiling using Rotational Raman Lidar Measurements with a 32-Channel Spectral Detector

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dc.contributor.advisorWhiteway, James A.
dc.contributor.authorSeth, Kanupria
dc.date.accessioned2021-07-06T12:46:54Z
dc.date.available2021-07-06T12:46:54Z
dc.date.copyright2021-03
dc.date.issued2021-07-06
dc.date.updated2021-07-06T12:46:54Z
dc.degree.disciplinePhysics And Astronomy
dc.degree.levelMaster's
dc.degree.nameMSc - Master of Science
dc.description.abstractAtmospheric backscatter measurements with lidar at 355 nm laser wavelength were conducted at York University. The novel combination of the lidar system with a new 32-channel spectral detector made possible detecting photon-counting signals for multiple wavelengths simultaneously. The goal of this research was to derive atmospheric temperature profiles using the rotational Raman backscatter signal. The temperature was derived using the ratio of two wavelength intervals in the rotational Raman backscatter spectrum. A calibration function for the signal ratio and temperature on June 6, 2019 was found using temperature data from radiosonde measurements in Buffalo. The calibration function was used to derive temperature from ground up to 1200 m using lidar measurements on April 18, June 11 and June 12 in 2019. The lidar-calculated temperature profile had a mean deviation of 2.14 K from the radiosonde temperature values. The method requires improvements, such as controlling the temperature of the edge filter to minimize changes in the calibration from day to day.
dc.identifier.urihttp://hdl.handle.net/10315/38452
dc.languageen
dc.rightsAuthor owns copyright, except where explicitly noted. Please contact the author directly with licensing requests.
dc.subjectMolecular physics
dc.subject.keywordstemperature profiling
dc.subject.keywordsatmospheric temperature
dc.subject.keywordsweather
dc.subject.keywordslidar technology
dc.subject.keywordslidar
dc.subject.keywordslaser
dc.subject.keywordsphysics
dc.subject.keywordsatmospheric physics
dc.subject.keywordsatmosphere
dc.subject.keywordsvertical temperature
dc.subject.keywordsradiosonde
dc.subject.keywordsraman scattering
dc.subject.keywordsrayleigh scattering
dc.subject.keywordsrotational raman scattering
dc.subject.keywordsoverlap function
dc.subject.keywordsedge filter
dc.subject.keywordstemperature dependence of edge filter
dc.subject.keywordslight scattering
dc.subject.keywordsmolecular scattering
dc.subject.keywordsatmospheric backscatter
dc.subject.keywordsrotational raman lines
dc.titleAtmospheric Temperature Profiling using Rotational Raman Lidar Measurements with a 32-Channel Spectral Detector
dc.typeElectronic Thesis or Dissertation

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