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Precipitation and Planetary Boundary Layer Height Analysis Using Surface-Based, Airborne, and Spaceborne Measurements
Precipitation and Planetary Boundary Layer Height Analysis Using Surface-Based, Airborne, ...
Precipitation and Planetary Boundary Layer Height Analysis Using Surface-Based, Airborne, and Spaceborne Measurements

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자료유형  
 학위논문 서양
최종처리일시  
20260202103127
ISBN  
9798314898147
DDC  
551.5
저자명  
Xu, Yike.
서명/저자  
Precipitation and Planetary Boundary Layer Height Analysis Using Surface-Based, Airborne, and Spaceborne Measurements
발행사항  
[Sl] : The University of Arizona, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
105 p
주기사항  
Source: Dissertations Abstracts International, Volume: 86-11, Section: B.
주기사항  
Advisor: Zeng, Xubin.
학위논문주기  
Thesis (Ph.D.)--The University of Arizona, 2025.
초록/해제  
요약Atmospheric science has grown increasingly important, with fields such as numerical weather forecasts directly impacting people's daily lives. However, limitations on the quality of observed precipitation and planetary boundary layer (PBLH) produce challenges in fields such as weather forecasting, extreme precipitation, and pollution transportation. Furthermore, the limitation of cloud microphysics in climate models continues to be an important topic. Despite gaining increased attention in recent years, observational challenges and limited understanding of cloud microphysics remain significant over the ocean, an area with scarce surface-based and airborne data.Given the above challenges, this dissertation aims to evaluate observational data and methods to estimate rainfall and PBLH in regions such as over the ocean with limited data. It also uses high-quality datasets to study their climatology, providing valuable insights to improve these datasets. Another goal is to use observation-based parameterization of cloud drop size distribution to explore its impact on radiation and cloud microphysics in climate models. This dissertation includes four methods: data analysis, algorithm evaluations, algorithm improvement, and model sensitivity tests. Using the above techniques, we tackled, evaluated, and improved the ways to understand observational datasets, improve current retrieval algorithms, and quantify changes in model outputs using new parameterizations informed from data analysis.To address the above objectives, this dissertation presents the following findings:1. Precipitation Analysis: Gauge-corrected radar data over the U.S. showed that coastal land receives more rainfall than coastal ocean. An evaluation of three satellite precipitation products (IMERG, PERSIANN, and CMOPRH) using gauge-corrected radar data showed that IMERG performs best over coastal land, and CMORPH performs best over coastal oceans.2. PBLH estimation: A new algorithm was developed for estimating PBLH from dropsondes' thermodynamic profile over the northwest Atlantic. We also evaluated the mixed layer height product from the airborne High Spectral Resolution Lidar-Generation 2 (MLH-HSRL) and found that it agrees well with that of dropsondes. Furthermore, we improved the MLH-HSRL to estimate PBLH better. For the other study, we evaluated four methods estimating PBLH from dropsonde profiles: We first identified the best one for each of the available four methods, and then we identified the parcel method and the gradient Richardson number as the two best methods estimating PBLH with the parcel method performing slightly better.3. Model sensitivity test: Sensitivity test demonstrates that the new parameterization of cloud droplet size distribution from Siu et al. (2025) data analysis improves summer Arctic shortwave cloud forcing in the Community Earth System Model simulation by 5 W/m2.This dissertation provides new angles for precipitation evaluation and contributes to the broader use and insights of airborne lidar and dropsondes to estimate PBLH. The findings can be implemented in future field campaigns and global satellite missions. Additionally, insights from the climate model sensitivity test highlight the importance of integrating observational data for model improvement of cloud microphysics on radiative feedback. Overall, this dissertation takes an approach from remote sensing to model parameterization, forming a loop from observation and model improvement. Hence, through data analysis, algorithm evaluation and improvement, and model sensitivity tests, this dissertation offers a meaningful basis for improving the understanding of atmospheric science.
일반주제명  
Atmospheric sciences
일반주제명  
Remote sensing
일반주제명  
Climate change
키워드  
Cloud microphysics
키워드  
Climatology
키워드  
Planetary boundary layer
키워드  
Data analysis
기타저자  
The University of Arizona Atmospheric Sciences
기본자료저록  
Dissertations Abstracts International. 86-11B.
전자적 위치 및 접속  
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MARC

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■035    ▼a(MiAaPQ)AAI31938988
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a551.5
■1001  ▼aXu,  Yike.
■24510▼aPrecipitation  and  Planetary  Boundary  Layer  Height  Analysis  Using  Surface-Based,  Airborne,  and  Spaceborne  Measurements
■260    ▼a[Sl]▼bThe  University  of  Arizona▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a105  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-11,  Section:  B.
■500    ▼aAdvisor:  Zeng,  Xubin.
■5021  ▼aThesis  (Ph.D.)--The  University  of  Arizona,  2025.
■520    ▼aAtmospheric  science  has  grown  increasingly  important,  with  fields  such  as  numerical  weather  forecasts  directly  impacting  people's  daily  lives.  However,  limitations  on  the  quality  of  observed  precipitation  and  planetary  boundary  layer  (PBLH)  produce  challenges  in  fields  such  as  weather  forecasting,  extreme  precipitation,  and  pollution  transportation.  Furthermore,  the  limitation  of  cloud  microphysics  in  climate  models  continues  to  be  an  important  topic.  Despite  gaining  increased  attention  in  recent  years,  observational  challenges  and  limited  understanding  of  cloud  microphysics  remain  significant  over  the  ocean,  an  area  with  scarce  surface-based  and  airborne  data.Given  the  above  challenges,  this  dissertation  aims  to  evaluate  observational  data  and  methods  to  estimate  rainfall  and  PBLH  in  regions  such  as  over  the  ocean  with  limited  data.  It  also  uses  high-quality  datasets  to  study  their  climatology,  providing  valuable  insights  to  improve  these  datasets.  Another  goal  is  to  use  observation-based  parameterization  of  cloud  drop  size  distribution  to  explore  its  impact  on  radiation  and  cloud  microphysics  in  climate  models.  This  dissertation  includes  four  methods:  data  analysis,  algorithm  evaluations,  algorithm  improvement,  and  model  sensitivity  tests.  Using  the  above  techniques,  we  tackled,  evaluated,  and  improved  the  ways  to  understand  observational  datasets,  improve  current  retrieval  algorithms,  and  quantify  changes  in  model  outputs  using  new  parameterizations  informed  from  data  analysis.To  address  the  above  objectives,  this  dissertation  presents  the  following  findings:1.  Precipitation  Analysis:  Gauge-corrected  radar  data  over  the  U.S.  showed  that  coastal  land  receives  more  rainfall  than  coastal  ocean.  An  evaluation  of  three  satellite  precipitation  products  (IMERG,  PERSIANN,  and  CMOPRH)  using  gauge-corrected  radar  data  showed  that  IMERG  performs  best  over  coastal  land,  and  CMORPH  performs  best  over  coastal  oceans.2.  PBLH  estimation:  A  new  algorithm  was  developed  for  estimating  PBLH  from  dropsondes'  thermodynamic  profile  over  the  northwest  Atlantic.  We  also  evaluated  the  mixed  layer  height  product  from  the  airborne  High  Spectral  Resolution  Lidar-Generation  2  (MLH-HSRL)  and  found  that  it  agrees  well  with  that  of  dropsondes.  Furthermore,  we  improved  the  MLH-HSRL  to  estimate  PBLH  better.  For  the  other  study,  we  evaluated  four  methods  estimating  PBLH  from  dropsonde  profiles:  We  first  identified  the  best  one  for  each  of  the  available  four  methods,  and  then  we  identified  the  parcel  method  and  the  gradient  Richardson  number  as  the  two  best  methods  estimating  PBLH  with  the  parcel  method  performing  slightly  better.3.  Model  sensitivity  test:  Sensitivity  test  demonstrates  that  the  new  parameterization  of  cloud  droplet  size  distribution  from  Siu  et  al.  (2025)  data  analysis  improves  summer  Arctic  shortwave  cloud  forcing  in  the  Community  Earth  System  Model  simulation  by  5  W/m2.This  dissertation  provides  new  angles  for  precipitation  evaluation  and  contributes  to  the  broader  use  and  insights  of  airborne  lidar  and  dropsondes  to  estimate  PBLH.  The  findings  can  be  implemented  in  future  field  campaigns  and  global  satellite  missions.  Additionally,  insights  from  the  climate  model  sensitivity  test  highlight  the  importance  of  integrating  observational  data  for  model  improvement  of  cloud  microphysics  on  radiative  feedback.  Overall,  this  dissertation  takes  an  approach  from  remote  sensing  to  model  parameterization,  forming  a  loop  from  observation  and  model  improvement.  Hence,  through  data  analysis,  algorithm  evaluation  and  improvement,  and  model  sensitivity  tests,  this  dissertation  offers  a  meaningful  basis  for  improving  the  understanding  of  atmospheric  science.
■590    ▼aSchool  code:  0009.
■650  4▼aAtmospheric  sciences
■650  4▼aRemote  sensing
■650  4▼aClimate  change
■653    ▼aCloud  microphysics
■653    ▼aClimatology
■653    ▼aPlanetary  boundary  layer
■653    ▼aData  analysis
■690    ▼a0725
■690    ▼a0404
■690    ▼a0799
■71020▼aThe  University  of  Arizona▼bAtmospheric  Sciences.
■7730  ▼tDissertations  Abstracts  International▼g86-11B.
■790    ▼a0009
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17357079▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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