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Characterization of Natural Hazards in the Great Lakes: Remote Monitoring and Deep Learning
Characterization of Natural Hazards in the Great Lakes: Remote Monitoring and Deep Learnin...
Characterization of Natural Hazards in the Great Lakes: Remote Monitoring and Deep Learning

Detailed Information

자료유형  
 학위논문 서양
최종처리일시  
20260202105158
ISBN  
9798293872459
DDC  
333.91
저자명  
Wang, Wei.
서명/저자  
Characterization of Natural Hazards in the Great Lakes: Remote Monitoring and Deep Learning
발행사항  
[Sl] : The University of Wisconsin - Madison, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
195 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-03, Section: B.
주기사항  
Advisor: Block, Paul.
학위논문주기  
Thesis (Ph.D.)--The University of Wisconsin - Madison, 2025.
초록/해제  
요약Natural hazards are environmental events that pose significant risks to societies and human environments. In the Great Lakes region, natural hazards such as flooding, dangerous currents, and rapid shoreline changes are common concerns. These hazards have led to numerous incidents, resulting in fatalities, socio-economic losses, and ecological damage. Given the severe consequences of natural hazards, the Great Lakes region faces two primary challenges: effectively detecting these hazards with high spatial resolution while minimizing labor and time costs; and comprehensively characterizing their occurrence and features to support informed management and mitigation efforts. I hypothesize that combining remote sensing and deep learning techniques can enhance the detection and characterization of natural hazards in the Great Lakes region. To examine this hypothesis, the overall objective of this study is characterizing natural hazards using remote monitoring and deep learning methods. Specifically, the research investigates flood impacts on stream habitat quality, and flash rip currents and rapid shoreline changes in coastal areas. First, to assess flood impacts on stream habitat quality, a UAV-based toolkit was developed to characterize stream habitat quality conditions using multi-metric indices (MMIs). Applied before and after the August 2018 flood, this approach revealed patterns of loss and resilience in riparian vegetation, bank stability, and in-stream cover. Second, for flash rip currents, webcam imagery was analyzed with a refined Cascade R-CNN model, enabling reliable detection and classification of flash rips into three driving factors: water-level fluctuations, normal waves, and oblique waves. Their spatial, temporal, and kinematic features were then characterized to quantify differences among driving factors. Third, to detect and characterize rapid shoreline changes, a DeepLab-based segmentation framework was applied to aerial images for shoreline extraction and coupled with an improved Digital Shoreline Analysis System to compute change rates, identify hotspots, and distinguish true morphological change from shoreline retreats driven by water-level fluctuations. Overall, this research contributes to improving detection methodologies and enriching the characterization of natural hazards in the Great Lakes region. The findings aim to reduce hazard-related risks and provide valuable insights into effective management and mitigation efforts.
일반주제명  
Water resources management
일반주제명  
Geomorphology
일반주제명  
Computer science
일반주제명  
Environmental engineering
키워드  
Characterization
키워드  
Deep learning
키워드  
Detection
키워드  
Great Lakes
키워드  
Natural hazards
키워드  
Remote sensing
기타저자  
The University of Wisconsin - Madison Civil & Environmental Engr
기본자료저록  
Dissertations Abstracts International. 87-03B.
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

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■1001  ▼aWang,  Wei.
■24510▼aCharacterization  of  Natural  Hazards  in  the  Great  Lakes:  Remote  Monitoring  and  Deep  Learning
■260    ▼a[Sl]▼bThe  University  of  Wisconsin  -  Madison▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a195  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-03,  Section:  B.
■500    ▼aAdvisor:  Block,  Paul.
■5021  ▼aThesis  (Ph.D.)--The  University  of  Wisconsin  -  Madison,  2025.
■520    ▼aNatural  hazards  are  environmental  events  that  pose  significant  risks  to  societies  and  human  environments.  In  the  Great  Lakes  region,  natural  hazards  such  as  flooding,  dangerous  currents,  and  rapid  shoreline  changes  are  common  concerns.  These  hazards  have  led  to  numerous  incidents,  resulting  in  fatalities,  socio-economic  losses,  and  ecological  damage.  Given  the  severe  consequences  of  natural  hazards,  the  Great  Lakes  region  faces  two  primary  challenges:  effectively  detecting  these  hazards  with  high  spatial  resolution  while  minimizing  labor  and  time  costs;  and  comprehensively  characterizing  their  occurrence  and  features  to  support  informed  management  and  mitigation  efforts.  I  hypothesize  that  combining  remote  sensing  and  deep  learning  techniques  can  enhance  the  detection  and  characterization  of  natural  hazards  in  the  Great  Lakes  region.  To  examine  this  hypothesis,  the  overall  objective  of  this  study  is  characterizing  natural  hazards  using  remote  monitoring  and  deep  learning  methods.  Specifically,  the  research  investigates  flood  impacts  on  stream  habitat  quality,  and  flash  rip  currents  and  rapid  shoreline  changes  in  coastal  areas.  First,  to  assess  flood  impacts  on  stream  habitat  quality,  a  UAV-based  toolkit  was  developed  to  characterize  stream  habitat  quality  conditions  using  multi-metric  indices  (MMIs).  Applied  before  and  after  the  August  2018  flood,  this  approach  revealed  patterns  of  loss  and  resilience  in  riparian  vegetation,  bank  stability,  and  in-stream  cover.  Second,  for  flash  rip  currents,  webcam  imagery  was  analyzed  with  a  refined  Cascade  R-CNN  model,  enabling  reliable  detection  and  classification  of  flash  rips  into  three  driving  factors:  water-level  fluctuations,  normal  waves,  and  oblique  waves.  Their  spatial,  temporal,  and  kinematic  features  were  then  characterized  to  quantify  differences  among  driving  factors.  Third,  to  detect  and  characterize  rapid  shoreline  changes,  a  DeepLab-based  segmentation  framework  was  applied  to  aerial  images  for  shoreline  extraction  and  coupled  with  an  improved  Digital  Shoreline  Analysis  System  to  compute  change  rates,  identify  hotspots,  and  distinguish  true  morphological  change  from  shoreline  retreats  driven  by  water-level  fluctuations.  Overall,  this  research  contributes  to  improving  detection  methodologies  and  enriching  the  characterization  of  natural  hazards  in  the  Great  Lakes  region.  The  findings  aim  to  reduce  hazard-related  risks  and  provide  valuable  insights  into  effective  management  and  mitigation  efforts.
■590    ▼aSchool  code:  0262.
■650  4▼aWater  resources  management
■650  4▼aGeomorphology
■650  4▼aComputer  science
■650  4▼aEnvironmental  engineering
■653    ▼aCharacterization
■653    ▼aDeep  learning
■653    ▼aDetection
■653    ▼aGreat  Lakes
■653    ▼aNatural  hazards
■653    ▼aRemote  sensing
■690    ▼a0595
■690    ▼a0484
■690    ▼a0984
■690    ▼a0543
■690    ▼a0775
■71020▼aThe  University  of  Wisconsin  -  Madison▼bCivil  &  Environmental  Engr.
■7730  ▼tDissertations  Abstracts  International▼g87-03B.
■790    ▼a0262
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17359682▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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