{"597876":{"#nid":"597876","#data":{"type":"event","title":"PhD Defense by Ruixiong Zhang","body":[{"value":"\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003ECOLLEGE OF SCIENCES\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003ESCHOOL OF EARTH AND ATMOSPHERIC SCIENCES\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EEAS Ph.D. Defense\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003ERuixiong Zhang\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003ENovember 2, 2017\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003E10:00 AM\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EEarth and Atmospheric Sciences\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003EFord Environmental Science \u0026amp; Technology (ES\u0026amp;T)\u003C\/p\u003E\r\n\r\n\u003Cp\u003E311 Ferst Drive, ES\u0026amp;TAtlanta, GA 30332-0340\u003C\/p\u003E\r\n\r\n\u003Cp\u003EWeb: eas.gatech.edu\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EES\u0026amp;T \u003Cstrong\u003EL1114\u003C\/strong\u003E\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003ETitle:\u003C\/strong\u003EApplications of satellite retrievals in deriving pollutant emissions and trends\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003ECommittee members: \u003C\/strong\u003EDr. Yuhang Wang (Advisor), Dr. Greg Huey, Dr. Nga Lee Ng, Dr. Rodney Weber, Dr. JintaiLin (Peking University)\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EAbstract: \u003C\/strong\u003EThis dissertation employs various satellite retrievals andthe 3-D Regional chEmicaltrAnsportModel (REAM) to(1) identify and quantify the emission sources, and (2) derive pollutant trends.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EFirst, we use short-lived reactive aromatics as proxies to diagnose transport of pollutants through the Himalayas to Tibet. We find enhancements of reactive aromatics over Tibet by a factor of 6 on average due to rapid transport from India and nearby regions during the presence of a high-altitude cut-off low system.\u003C\/p\u003E\r\n\r\n\u003Cp\u003ESecond, we derive anthropogenic NOx emissions with 4km spatial resolution using Ozone Monitoring Instrument (OMI) NO2retrieval in Yangtze River region during June-July-August (JJA) of 2005-2009 and 2010-2015. The NO2emission inversion using High-resolution Daily Retrieval-Inversion (HDRI) method proves powerful in quantifying the effects of urbanization.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EFinally, we retrieve OMI tropospheric NO2VCDs and obtain the NO2relative trends over the United States. We improve the OMI retrievals for trend analysis by removing the ocean trend, using MODerate-resolution Imaging Spectroradiometer(MODIS)albedo data in air mass factors (AMFs) calculation, and applying lightning event filter to screen data. These improvements result in close agreement (within 0.8% yr-1) between EPA AQS in situ and OMI-based NO2annual relative trends.\u003C\/p\u003E\r\n","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"Applications of satellite retrievals in deriving pollutant emissions and trends"}],"uid":"27707","created_gmt":"2017-10-25 19:07:47","changed_gmt":"2017-10-25 19:07:47","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2017-11-02T11:00:00-04:00","event_time_end":"2017-11-02T13:00:00-04:00","event_time_end_last":"2017-11-02T13:00:00-04:00","gmt_time_start":"2017-11-02 15:00:00","gmt_time_end":"2017-11-02 17:00:00","gmt_time_end_last":"2017-11-02 17:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78761","name":"Faculty\/Staff"},{"id":"78771","name":"Public"},{"id":"174045","name":"Graduate students"},{"id":"78751","name":"Undergraduate students"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}