{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/127169"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/127169","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Diagnosing CMIP6 sea surface temperature variability in the Indo-Pacific warm pool","abstract":"DSpace SAF Submission Ingestion Package generated from Vireo submission #21277 on 2025-03-28 at 14:25:18","abstract_html":"DSpace SAF Submission Ingestion Package generated from Vireo submission #21277 on 2025-03-28 at 14:25:18","abstract_has_math":false,"creators":["Sasaki, Maile"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Atmospheric Sciences","degree_department":null,"school":null,"contributors":["Proistosescu, Cristian","Conroy, Jessica","Zhang, Gan"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2024,"date_issued":"2024-10-31","date_published":"2024-10-31","updated_at":"2026-07-22T22:25:03Z","subjects":["Climate Variability","Tropical Variability","Pattern Effect","Interdecadal Climate Variability","Climate Feedbacks","Climate Change","Climate Dynamics","Internal And Forced Variability","Cmip6","Cesm"],"languages":["en","eng"],"rights":["Copyright 2024 Maile Sasaki"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/127169","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Proistosescu, Cristian","Conroy, Jessica","Zhang, Gan"]},{"key":"dc:creator","label":"Author","values":["Sasaki, Maile"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2024-10-31","2024-12"]},{"key":"dc:type","label":"Dc Type","values":["text","Thesis"]},{"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":["Climate Variability","Tropical Variability","Pattern Effect","Interdecadal Climate Variability","Climate Feedbacks","Climate Change","Climate Dynamics","Internal And Forced Variability","Cmip6","Cesm"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en","eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2024 Maile Sasaki"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/127169"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["DSpace SAF Submission Ingestion Package generated from Vireo submission #21277 on 2025-03-28 at 14:25:18","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-03-28 without embargo terms","The student, Maile Sasaki, accepted the attached license on 2024-10-29 at 09:54.","The student, Maile Sasaki, submitted this Thesis for approval on 2024-10-29 at 10:45.","This Thesis was approved for publication on 2024-10-31 at 10:26.","In recent decades, sea surface temperatures (SSTs) in the eastern tropical Pacific have been observed to be cooling, while the western Indo-Pacific warm pool has been experiencing intensified warming. However, models in the Coupled Model Intercomparison Project phase 6 (CMIP6) have been unable to recreate this warming pattern. They indicate an even warming pattern over most of the earth, with intensified warming in the eastern tropical Pacific where we see cooling today. Understanding the cause for this discrepancy is made difficult by the fact that we currently do not have a good understanding of the mechanisms that control decadal scale variability in the tropical Pacific. Here we focus on understanding how climate models handle internal climate variability. Climate models in CMIP6 seem to agree that interdecadal surface air temperature variability is very muted in tropical areas of ascent, and therefore high precipitation. As a result, climate change is disproportionately increasing the temperature variability in the warm pool and along the Intertropical Convergence Zone and South Pacific Convergence Zone. Across CMIP6 models, the strength of ascent is positively correlated with the signal to noise ratio of forced response to unforced variability. We use a simple Hasselmann model to partition SST variability into contributions from forcing and feedback terms for both oceanic and atmospheric heat fluxes. We find that the suppressed variability in tropical regions of ascent is related to strong horizontal transport damping of SST anomalies."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Diagnosing CMIP6 sea surface temperature variability in the Indo-Pacific warm pool"]}]}],"canonical_facts":{"dc:contributor":["Proistosescu, Cristian","Conroy, Jessica","Zhang, Gan"],"dc:creator":["Sasaki, Maile"],"dc:date":["2024-10-31","2024-12"],"dc:description":["DSpace SAF Submission Ingestion Package generated from Vireo submission #21277 on 2025-03-28 at 14:25:18","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-03-28 without embargo terms","The student, Maile Sasaki, accepted the attached license on 2024-10-29 at 09:54.","The student, Maile Sasaki, submitted this Thesis for approval on 2024-10-29 at 10:45.","This Thesis was approved for publication on 2024-10-31 at 10:26.","In recent decades, sea surface temperatures (SSTs) in the eastern tropical Pacific have been observed to be cooling, while the western Indo-Pacific warm pool has been experiencing intensified warming. However, models in the Coupled Model Intercomparison Project phase 6 (CMIP6) have been unable to recreate this warming pattern. They indicate an even warming pattern over most of the earth, with intensified warming in the eastern tropical Pacific where we see cooling today. Understanding the cause for this discrepancy is made difficult by the fact that we currently do not have a good understanding of the mechanisms that control decadal scale variability in the tropical Pacific. Here we focus on understanding how climate models handle internal climate variability. Climate models in CMIP6 seem to agree that interdecadal surface air temperature variability is very muted in tropical areas of ascent, and therefore high precipitation. As a result, climate change is disproportionately increasing the temperature variability in the warm pool and along the Intertropical Convergence Zone and South Pacific Convergence Zone. Across CMIP6 models, the strength of ascent is positively correlated with the signal to noise ratio of forced response to unforced variability. We use a simple Hasselmann model to partition SST variability into contributions from forcing and feedback terms for both oceanic and atmospheric heat fluxes. We find that the suppressed variability in tropical regions of ascent is related to strong horizontal transport damping of SST anomalies."],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/127169"],"dc:language":["en","eng"],"dc:rights":["Copyright 2024 Maile Sasaki"],"dc:subject":["Climate Variability","Tropical Variability","Pattern Effect","Interdecadal Climate Variability","Climate Feedbacks","Climate Change","Climate Dynamics","Internal And Forced Variability","Cmip6","Cesm"],"dc:title":["Diagnosing CMIP6 sea surface temperature variability in the Indo-Pacific warm pool"],"dc:type":["text","Thesis"],"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":"2026-07-22T22:25:03Z"}