{"id":{"repo_id":"purdue-thes","oai_identifier":"oai:docs.lib.purdue.edu:open_access_dissertations-2707"},"canonical_url":"https://search.dev.ndltd.org/etd/purdue-thes/oai:docs.lib.purdue.edu:open_access_dissertations-2707","repository":{"repo_id":"purdue-thes","name":"Purdue University","base_url":"https://docs.lib.purdue.edu/do/oai/"},"display":{"title":"Impacts of Land-Atmosphere Interactions on Regional Convection and Rainfall","abstract":"High resolution (1-10 km) numerical weather prediction (NWP) models face major challenges trying to improve representation of moist processes. In particular, simulating the interaction between the land surface and regional convection and rainfall is a source of uncertainties and presents three main barriers: (i) NWP models generally have simple land surface schemes, (ii) land-atmosphere coupling is not properly represented in models, and (iii) many assumptions made in deriving the theory of convective parameterizations are no longer valid at “gray scales” (e.g., 1-10 km). In this dissertation, interactions between land-surface heterogeneities, land-atmosphere coupling, and moist convection and related mesoscale circulations were investigated in four major studies to improve and advance the understanding of high-resolution model simulations of regional convection and precipitation. A number of short-term (i.e., 24-48 hours) retrospective numerical experiments were conducted over a variety of land-atmosphere coupling hotspot regions across the globe.","abstract_html":"High resolution (1-10 km) numerical weather prediction (NWP) models face major challenges trying to improve representation of moist processes. In particular, simulating the interaction between the land surface and regional convection and rainfall is a source of uncertainties and presents three main barriers: (i) NWP models generally have simple land surface schemes, (ii) land-atmosphere coupling is not properly represented in models, and (iii) many assumptions made in deriving the theory of convective parameterizations are no longer valid at “gray scales” (e.g., 1-10 km). In this dissertation, interactions between land-surface heterogeneities, land-atmosphere coupling, and moist convection and related mesoscale circulations were investigated in four major studies to improve and advance the understanding of high-resolution model simulations of regional convection and precipitation. A number of short-term (i.e., 24-48 hours) retrospective numerical experiments were conducted over a variety of land-atmosphere coupling hotspot regions across the globe.","abstract_has_math":false,"creators":["Zheng, Yue"],"institution":null,"degree_name":"Doctor of Philosophy (PhD)","degree_level":"Dissertation","degree_discipline":"Earth, Atmospheric, and Planetary Sciences","degree_department":null,"school":null,"contributors":["Jon Harbor","Dev Niyogi","Nathanial Brunsell","Qianlai Zhuang","Kiran Alapaty"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2015,"date_issued":"2015-01-01T08:00:00Z","date_published":"2015-01-01T08:00:00Z","updated_at":"2026-07-24T03:54:44Z","subjects":["Convection parameterization","High-resolution","Land-atmosphere coupling","Land-atmosphere interaction","Land-surface heterogeneity","Mesoscale convection"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://docs.lib.purdue.edu/open_access_dissertations/1491","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Jon Harbor","Dev Niyogi","Nathanial Brunsell","Qianlai Zhuang","Kiran Alapaty"]},{"key":"dc:creator","label":"Author","values":["Zheng, Yue"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"thesis:degree_discipline","label":"Discipline","values":["Earth, Atmospheric, and Planetary Sciences"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Doctor of Philosophy (PhD)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Convection parameterization","High-resolution","Land-atmosphere coupling","Land-atmosphere interaction","Land-surface heterogeneity","Mesoscale convection"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://docs.lib.purdue.edu/open_access_dissertations/1491"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["High resolution (1-10 km) numerical weather prediction (NWP) models face major challenges trying to improve representation of moist processes. In particular, simulating the interaction between the land surface and regional convection and rainfall is a source of uncertainties and presents three main barriers: (i) NWP models generally have simple land surface schemes, (ii) land-atmosphere coupling is not properly represented in models, and (iii) many assumptions made in deriving the theory of convective parameterizations are no longer valid at “gray scales” (e.g., 1-10 km). In this dissertation, interactions between land-surface heterogeneities, land-atmosphere coupling, and moist convection and related mesoscale circulations were investigated in four major studies to improve and advance the understanding of high-resolution model simulations of regional convection and precipitation. A number of short-term (i.e., 24-48 hours) retrospective numerical experiments were conducted over a variety of land-atmosphere coupling hotspot regions across the globe."]},{"key":"dc:title","label":"Title","values":["Impacts of Land-Atmosphere Interactions on Regional Convection and Rainfall"]}]}],"canonical_facts":{"dc:contributor":["Jon Harbor","Dev Niyogi","Nathanial Brunsell","Qianlai Zhuang","Kiran Alapaty"],"dc:creator":["Zheng, Yue"],"dc:description.abstract":["High resolution (1-10 km) numerical weather prediction (NWP) models face major challenges trying to improve representation of moist processes. In particular, simulating the interaction between the land surface and regional convection and rainfall is a source of uncertainties and presents three main barriers: (i) NWP models generally have simple land surface schemes, (ii) land-atmosphere coupling is not properly represented in models, and (iii) many assumptions made in deriving the theory of convective parameterizations are no longer valid at “gray scales” (e.g., 1-10 km). In this dissertation, interactions between land-surface heterogeneities, land-atmosphere coupling, and moist convection and related mesoscale circulations were investigated in four major studies to improve and advance the understanding of high-resolution model simulations of regional convection and precipitation. A number of short-term (i.e., 24-48 hours) retrospective numerical experiments were conducted over a variety of land-atmosphere coupling hotspot regions across the globe."],"dc:identifier":["https://docs.lib.purdue.edu/open_access_dissertations/1491"],"dc:subject":["Convection parameterization","High-resolution","Land-atmosphere coupling","Land-atmosphere interaction","Land-surface heterogeneity","Mesoscale convection"],"dc:title":["Impacts of Land-Atmosphere Interactions on Regional Convection and Rainfall"],"thesis:degree_discipline":["Earth, Atmospheric, and Planetary Sciences"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Doctor of Philosophy (PhD)"]},"updated_at":"2026-07-24T03:54:44Z"}