{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/85958"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/85958","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Gravity Wave/large-Scale Flow Interactions: A Comparison of Model Predication and Observation","abstract":"These observed interaction signatures are then compared to the interaction signatures predicted by three commonly used gravity-wave parameterizations: critical level filtering, linear saturation filtering, and diffusive filtering. A one-dimensional, time-independent model filters various gravity-wave spectra using the criteria for each of these parameterizations. Background wind profiles for different times during the large-scale flow event are used to obtain filtered gravity-wave activity signatures that vary over time. In order to reproduce the observed interaction signature for both large-scale flow events, a broad spectrum released at 55 km was needed. These model results would indicate that the gravity waves that reach the mesosphere do not propagate from the troposphere, but are generated more locally.","abstract_html":"These observed interaction signatures are then compared to the interaction signatures predicted by three commonly used gravity-wave parameterizations: critical level filtering, linear saturation filtering, and diffusive filtering. A one-dimensional, time-independent model filters various gravity-wave spectra using the criteria for each of these parameterizations. Background wind profiles for different times during the large-scale flow event are used to obtain filtered gravity-wave activity signatures that vary over time. In order to reproduce the observed interaction signature for both large-scale flow events, a broad spectrum released at 55 km was needed. These model results would indicate that the gravity waves that reach the mesosphere do not propagate from the troposphere, but are generated more locally.","abstract_has_math":false,"creators":["Herman, Redina Lee"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Atmospheric Sciences","degree_department":null,"school":null,"contributors":["Robinson, Walter A."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2015,"date_issued":"2015-09-28T14:52:18Z","date_published":"2015-09-28T14:52:18Z","updated_at":"2026-07-22T22:26:26Z","subjects":["Physics, Atmospheric Science"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(MiAaPQ)AAI3101860"],"render_values":[{"text":"(MiAaPQ)AAI3101860","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/85958","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Robinson, Walter A."]},{"key":"dc:creator","label":"Author","values":["Herman, Redina Lee"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2015-09-28T14:52:18Z","10000-01-01","2003"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Atmospheric Sciences"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Physics, Atmospheric Science"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/85958","(MiAaPQ)AAI3101860"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["These observed interaction signatures are then compared to the interaction signatures predicted by three commonly used gravity-wave parameterizations: critical level filtering, linear saturation filtering, and diffusive filtering. A one-dimensional, time-independent model filters various gravity-wave spectra using the criteria for each of these parameterizations. Background wind profiles for different times during the large-scale flow event are used to obtain filtered gravity-wave activity signatures that vary over time. In order to reproduce the observed interaction signature for both large-scale flow events, a broad spectrum released at 55 km was needed. These model results would indicate that the gravity waves that reach the mesosphere do not propagate from the troposphere, but are generated more locally.","Made available in DSpace on 2015-09-28T14:52:18Z (GMT). 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A one-dimensional, time-independent model filters various gravity-wave spectra using the criteria for each of these parameterizations. Background wind profiles for different times during the large-scale flow event are used to obtain filtered gravity-wave activity signatures that vary over time. In order to reproduce the observed interaction signature for both large-scale flow events, a broad spectrum released at 55 km was needed. These model results would indicate that the gravity waves that reach the mesosphere do not propagate from the troposphere, but are generated more locally.","Made available in DSpace on 2015-09-28T14:52:18Z (GMT). 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