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dc.contributor.advisorNuss, Wendell A.
dc.contributor.authorLisko, Scott C.
dc.dateMarch 2005
dc.date.accessioned2012-03-14T17:34:28Z
dc.date.available2012-03-14T17:34:28Z
dc.date.issued2005-03
dc.identifier.urihttp://hdl.handle.net/10945/2201
dc.descriptionApproved for public release, distribution is unlimiteden_US
dc.description.abstractThis study investigates severe weather events occurring in the Midwest, Central, and Northeastern United States from May through September 2004. Severe weather events are pinpointed using tornado and hail reports and correlating them with NEXRAD radar data to determine maximum intensity of the event. Severe storms that occur within 30 minutes of a model forecast hour are catalogued for further investigation. Once these events are diagnosed, ETA-212 and MM5 model data is regridded, centered on the storm. Divergence values at 300 hPa are extracted from the model data for each storm event. These storms are then grouped in three ways: all storms, tornadic storms, and hail producing storms. The averaged maximum divergence values from the ETA-212 for each group are examined from the 0 hour analysis through the 21 hour forecast. From these averaged divergence values, a matrix of recommended divergence threshold values is derived. For the MM5 data, a subset of storms is examined. The MM5 and ETA-212 are run on an identical set of storms, and the divergence forecasts are compared.en_US
dc.description.urihttp://archive.org/details/analysisndforeca109452201
dc.format.extentxiv, 119 p. : col. ill., col. mapsen_US
dc.publisherMonterey California. Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, may not be copyrighted.en_US
dc.subject.lcshSevere stormsen_US
dc.subject.lcshForecastingen_US
dc.subject.lcshWeather forecastingen_US
dc.subject.lcshUnited Statesen_US
dc.subject.lcshMeteorologyen_US
dc.subject.lcshTornadoesen_US
dc.titleAnalysis and forecasts of 300 hPa divergence associated with severe convection using ETA-212 and MM5 model dataen_US
dc.typeThesisen_US
dc.contributor.secondreaderWash, Carlyle H.
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.contributor.departmentDepartment of Meteorology
dc.subject.authorAnalysisen_US
dc.subject.authorForecastsen_US
dc.subject.author300 hPaen_US
dc.subject.authorDivergenceen_US
dc.subject.authorSevere convectionen_US
dc.subject.authorETA-212en_US
dc.subject.authorMMSen_US
dc.description.serviceCaptain, United States Air Forceen_US
etd.thesisdegree.nameM.S. in Meteorologyen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineMeteorologyen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US
etd.verifiednoen_US


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