{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/99110"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/99110","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Evaluating the regional impact of aircraft emissions on climate and the capabilities of simplified climate model","abstract":"The student, Jun Zhang, submitted this Thesis for approval on 2017-07-14 at 17:30.","abstract_html":"The student, Jun Zhang, submitted this Thesis for approval on 2017-07-14 at 17:30.","abstract_has_math":false,"creators":["Zhang, Jun"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Atmospheric Sciences","degree_department":null,"school":null,"contributors":["Wuebbles, Donald James"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2018,"date_issued":"2018-03-02T19:59:42Z","date_published":"2018-03-02T19:59:42Z","updated_at":"2026-07-22T22:24:37Z","subjects":["Aviation emissions","Climate change"],"languages":["en"],"rights":["Copyright 2017 Jun Zhang"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/99110","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Wuebbles, Donald James"]},{"key":"dc:creator","label":"Author","values":["Zhang, Jun"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2018-03-02T19:59:42Z","2020-03-03T10:15:11Z","2017-07-17","2017-08"]},{"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":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"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":["Aviation emissions","Climate change"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2017 Jun Zhang"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/99110"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["The student, Jun Zhang, submitted this Thesis for approval on 2017-07-14 at 17:30.","This Thesis was approved for publication on 2017-07-17 at 10:25.","DSpace SAF Submission Ingestion Package generated from Vireo submission #11480 on 2018-03-02 at 13:02:19","Made available in DSpace on 2018-03-02T19:59:42Z (GMT). No. of bitstreams: 2 ZHANG-THESIS-2017.pdf: 3851689 bytes, checksum: 534b1d9d6c0f7c1aa4cf3023e551e09f (MD5) LICENSE.txt: 4206 bytes, checksum: 314d34d5dd4a9866893cb37d3b96fae6 (MD5) Previous issue date: 2017-07-17","Embargo set by: Seth Robbins for item 105064 Lift date: 2020-03-02T19:59:52Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system","Embargo set by: Seth Robbins for item 105064 Lift date: 2020-03-02T20:02:46Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system","U of I Only Restriction Lifted for Item 105064 on 2020-03-03T10:15:11Z.","Unlike other transportation sectors where pollutant emissions usually occur only near the Earth’s surface, aviation emissions happen primarily at altitudes of 8-12 km above the surface, impacting the upper troposphere and the lower stratosphere (UTLS). At these altitudes, the pollutants can contribute significantly to greenhouse gas (GHGs) concentration and to the formation of secondary aerosol, which can have an impact on climate change. This thesis has two parts: the first part examines the capabilities of a simplified model that is used by the U.S. Federal Aviation Administration (FAA) for considering the impacts of aviation emissions in policy-related studies; the second part examines the regional effects on climate forcing resulting from aviation emissions. Most previous studies have focused on aviation effects on climate using globally-averaged metric values, which do not give information about the spatial variability of the effects. While aviation emissions have significant spatial variability in the sign and magnitude of response, the strength of regional effects is hidden due to the global averaging of climate change effects. In this study, the chemistry-climate Community Atmosphere Model (CAM-chem5) is used in analyses to examine the regional climate effects based on 4 different latitude bands (90oS- 28oS, 28oS-28oN, 28oN-60oN, 60oN-90oN) and 3 regions (contiguous United States, Europe and East Asia). The most regionally important aviation emissions are short-lived species, such as black carbon and sulfates, emitted from aircraft directly, and O3-short induced by NOx emission indirectly. The regionality of these short-lived impacts are explored and compared to the globally-averaged effects. Studying aviation emission on climate usually relies on computationally expensive chemistry-climate models. However, for aviation policy analyses, a wide range of different scenarios need to be evaluated, making the development of simple models like the Aviation environmental Portfolio Management Tool (APMT), developed for the FAA by MIT, very useful. We evaluate how well the model determines climate effects from aviation based on the Aviation Climate Change Research Initiative (ACCRI) findings and more recent analyses. We test the Carbon Cycle and Energy Balance model of APMT, and explore the non-linearity effects in using such a simplified model.","Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2019-08-01","The student, Jun Zhang, accepted the attached license on 2017-07-14 at 17:01."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Evaluating the regional impact of aircraft emissions on climate and the capabilities of simplified climate model"]}]}],"canonical_facts":{"dc:contributor":["Wuebbles, Donald James"],"dc:creator":["Zhang, Jun"],"dc:date":["2018-03-02T19:59:42Z","2020-03-03T10:15:11Z","2017-07-17","2017-08"],"dc:description":["The student, Jun Zhang, submitted this Thesis for approval on 2017-07-14 at 17:30.","This Thesis was approved for publication on 2017-07-17 at 10:25.","DSpace SAF Submission Ingestion Package generated from Vireo submission #11480 on 2018-03-02 at 13:02:19","Made available in DSpace on 2018-03-02T19:59:42Z (GMT). No. of bitstreams: 2 ZHANG-THESIS-2017.pdf: 3851689 bytes, checksum: 534b1d9d6c0f7c1aa4cf3023e551e09f (MD5) LICENSE.txt: 4206 bytes, checksum: 314d34d5dd4a9866893cb37d3b96fae6 (MD5) Previous issue date: 2017-07-17","Embargo set by: Seth Robbins for item 105064 Lift date: 2020-03-02T19:59:52Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system","Embargo set by: Seth Robbins for item 105064 Lift date: 2020-03-02T20:02:46Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system","U of I Only Restriction Lifted for Item 105064 on 2020-03-03T10:15:11Z.","Unlike other transportation sectors where pollutant emissions usually occur only near the Earth’s surface, aviation emissions happen primarily at altitudes of 8-12 km above the surface, impacting the upper troposphere and the lower stratosphere (UTLS). At these altitudes, the pollutants can contribute significantly to greenhouse gas (GHGs) concentration and to the formation of secondary aerosol, which can have an impact on climate change. This thesis has two parts: the first part examines the capabilities of a simplified model that is used by the U.S. Federal Aviation Administration (FAA) for considering the impacts of aviation emissions in policy-related studies; the second part examines the regional effects on climate forcing resulting from aviation emissions. Most previous studies have focused on aviation effects on climate using globally-averaged metric values, which do not give information about the spatial variability of the effects. While aviation emissions have significant spatial variability in the sign and magnitude of response, the strength of regional effects is hidden due to the global averaging of climate change effects. In this study, the chemistry-climate Community Atmosphere Model (CAM-chem5) is used in analyses to examine the regional climate effects based on 4 different latitude bands (90oS- 28oS, 28oS-28oN, 28oN-60oN, 60oN-90oN) and 3 regions (contiguous United States, Europe and East Asia). The most regionally important aviation emissions are short-lived species, such as black carbon and sulfates, emitted from aircraft directly, and O3-short induced by NOx emission indirectly. The regionality of these short-lived impacts are explored and compared to the globally-averaged effects. Studying aviation emission on climate usually relies on computationally expensive chemistry-climate models. However, for aviation policy analyses, a wide range of different scenarios need to be evaluated, making the development of simple models like the Aviation environmental Portfolio Management Tool (APMT), developed for the FAA by MIT, very useful. We evaluate how well the model determines climate effects from aviation based on the Aviation Climate Change Research Initiative (ACCRI) findings and more recent analyses. We test the Carbon Cycle and Energy Balance model of APMT, and explore the non-linearity effects in using such a simplified model.","Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2019-08-01","The student, Jun Zhang, accepted the attached license on 2017-07-14 at 17:01."],"dc:format":["application/pdf"],"dc:identifier":["http://hdl.handle.net/2142/99110"],"dc:language":["en"],"dc:rights":["Copyright 2017 Jun Zhang"],"dc:subject":["Aviation emissions","Climate change"],"dc:title":["Evaluating the regional impact of aircraft emissions on climate and the capabilities of simplified climate model"],"dc:type":["text"],"thesis:degree_discipline":["Atmospheric Sciences"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:24:37Z"}