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The UMass Experimental X-Band Radar (UMAXX): An Upgrade of the CASA MA-1 to Support Cross-Polarization Measurements

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dc.contributor.advisorStephen Frasier
dc.contributor.authorVilardell Sanchez, Jezabel
dc.contributor.departmentUniversity of Massachusetts Amherst
dc.contributor.departmentElectrical & Computer Engineering
dc.date2023-09-23T23:06:50.000
dc.date.accessioned2024-04-26T18:27:09Z
dc.date.available2024-04-26T18:27:09Z
dc.date.submittedMay
dc.date.submitted2019
dc.description.abstractGround-based radars are instruments commonly used to surveil the precipitation climate of the surrounding areas. Weather events are characterized by collecting backscatter data and analyzing computed products such as the Reflectivity Factor, the Doppler Velocity, the Spectrum Width, the Differential Reflectivity, the Co-polar Correlation Coefficient and the Differential Propagation Phase. The ability of the radar to transmit different polarization waves, such as horizontal and vertical polarization, allow for further analysis of the weather given the capability to perform co-polar and cross-polar measurements. The Linear Depolarization Ratio is another computed product based on the difference in power between the co-polarized and cross-polarized channel used to, for example, classify and characterize the ice crystal types. In order to obtain this variable, the radar has to be able to receive in both horizontal and vertical polarizations but transmit in either of them. This thesis presents the modifications performed on the MA-1 prototype radar from the CASA (Collaborative Adaptive Sensing of the Atmosphere) Engineering Center to support cross-polarization measurement studies. The new radar, now known as UMass eXperimental X-Band (UMaXX) Radar is a dual-polarization radar able to transmit in both horizontal and vertical polarizations or single horizontal polarization and receive in both, making it able to compute LDR. The radar is installed atop of a tower located on Orchard Hill at the University of Massachusetts Amherst, where it operates at all times. This thesis also presents the analysis of sample weather phenomena captured with the radar, including rain events and the Hardwick tornado, recorded on October 23rd 2018 and registered by the weather services.
dc.description.degreeMaster of Science in Electrical and Computer Engineering (M.S.E.C.E.)
dc.identifier.doihttps://doi.org/10.7275/14155367
dc.identifier.orcidhttps://orcid.org/0000-0001-8281-9834
dc.identifier.urihttps://hdl.handle.net/20.500.14394/33860
dc.relation.urlhttps://scholarworks.umass.edu/cgi/viewcontent.cgi?article=1806&context=masters_theses_2&unstamped=1
dc.source.statuspublished
dc.subjectradar
dc.subjectweather
dc.subjectldr
dc.subjectdual-polarization
dc.subjectElectrical and Electronics
dc.subjectElectromagnetics and Photonics
dc.subjectSignal Processing
dc.titleThe UMass Experimental X-Band Radar (UMAXX): An Upgrade of the CASA MA-1 to Support Cross-Polarization Measurements
dc.typeopenaccess
dc.typearticle
dc.typethesis
digcom.contributor.authorisAuthorOfPublication|email:jezabel.vilardell@gmail.com|institution:University of Massachusetts Amherst|Vilardell Sanchez, Jezabel
digcom.identifiermasters_theses_2/805
digcom.identifier.contextkey14155367
digcom.identifier.submissionpathmasters_theses_2/805
dspace.entity.typePublication
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