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Sensor-Driven Flood Risk Monitoring in Levee-Protected Floodplains and Urban Storm Sewer Networks
Sensor-Driven Flood Risk Monitoring in Levee-Protected Floodplains and Urban Storm Sewer N...
Sensor-Driven Flood Risk Monitoring in Levee-Protected Floodplains and Urban Storm Sewer Networks

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자료유형  
 학위논문 서양
최종처리일시  
20260202104822
ISBN  
9798293823949
DDC  
620
저자명  
Young, Alexander Lehtonen.
서명/저자  
Sensor-Driven Flood Risk Monitoring in Levee-Protected Floodplains and Urban Storm Sewer Networks
발행사항  
[Sl] : Cornell University, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
231 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-03, Section: B.
주기사항  
Advisor: Albertson, John.
학위논문주기  
Thesis (Ph.D.)--Cornell University, 2025.
초록/해제  
요약Flooding continues to pose a global threat to life and property and communities in both rural and urban areas face compound flood risk from riverine, pluvial, coastal flooding, or combinations of these three types. Riverine flooding is often managed with levees that reduce the frequency of low-magnitude floods and protect infrastructure in low-lying floodplains. Flooding in urban areas is often managed with stormwater collection systems, which convey water away from populated areas. Sufficiently large precipitation events can overwhelm flood defense infrastructure, especially when the infrastructure is poorly maintained or degraded from its design specifications. Levees can fail due to overtopping or erosion and stormwater collection systems can exhibit unexpected capacity reductions, for example due to blockages. In recent decades, advancements in low-cost depth, velocity, flow sensors, increases in computer modeling resolution, and new data processing algorithms have given municipalities a broad set of tools for monitoring and modeling their combined flood risk. Given the rapid development of these tools, there are still many unanswered questions about how to efficiently and effectively allocate sensors, interpret sensor and model data to characterize flood risk, and validate the outputs. This thesis addresses aspects of these three questions through case studies and simulations in a levee protected floodplain, a model of an urban stormwater system, and a laboratory-scale stormwater pipe. Specifically, the studies address monitoring of flood propagation in real time, detection of stormwater system sections that are at risk of overflow, and diagnosis of blockages and retention basin silting in early stages of formation. The first study explores installing a sensitivity-based flow depth sensor network across a floodplain to calibrate flow resistance parameters for a levee breach flood model in real time. The sparse network of sensors is sufficient to accurately estimate the parameters and produce an accurate flood forecast with enough lead time to guide downstream emergency preparation. The following three studies focus on sensor applications to urban stormwater system monitoring for emergent flood risk. The first study in this vein optimizes the placement of depth and flow sensors in a large (~1000 manhole) sewer system to ensure complete detection of pipe blockage driven overflows. Optimized networks consist of sensors in manholes with large fields of view, meaning they experience backup from blockages far downstream. Results from numerical simulations show that the optimized sensor networks outperform randomly assigned sensor networks in blockage-induced overflow detection. In the second study, fire hydrant flushing is used as a known impulse to a section of stormwater system and the resulting impulse-response hydrograph measured downstream is used to detect blockages and retention basin silting. A calibration-optimization procedure estimates the parameters of a simple stormwater system numerical model to also diagnose the location and severity of the blockages and retention basin silting. Blockages and retention basin silting of varying severity were accurately diagnosed with the procedure under increasing noise contamination, though localization and severity characterization suffered at high noise levels. For the final study, blockage detection from downstream depth sensor measurements is investigated with experiments in a laboratory-scale stormwater system. A hydrograph recession rate metric was able to accurately detect and locate in time a 40% and 60% pipe diameter constriction from a sensor placed 60 diameters downstream of the blockage. This result introduces a novel sewer data analysis technique with the potential to augment existing data-driven blockage detection methods. Taken together, this thesis builds new methodologies for implementation of sensor-based flood risk management, but also highlights the need for developing solutions tailored to the needs of specific municipalities due to the diverse range of flood risks and no one-size-fits-all approach.
일반주제명  
Hydraulic engineering
일반주제명  
Fluid mechanics
일반주제명  
Environmental engineering
키워드  
Flooding
키워드  
Hydraulic modeling
키워드  
Levee breach
키워드  
Sewer sensing
키워드  
Stormwater management
기타저자  
Cornell University Civil and Environmental Engineering
기본자료저록  
Dissertations Abstracts International. 87-03B.
전자적 위치 및 접속  
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MARC

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■035    ▼a(MiAaPQ)AAI32169271
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a620
■1001  ▼aYoung,  Alexander  Lehtonen.▼0(orcid)0009-0001-6026-0221
■24510▼aSensor-Driven  Flood  Risk  Monitoring  in  Levee-Protected  Floodplains  and  Urban  Storm  Sewer  Networks
■260    ▼a[Sl]▼bCornell  University▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a231  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-03,  Section:  B.
■500    ▼aAdvisor:  Albertson,  John.
■5021  ▼aThesis  (Ph.D.)--Cornell  University,  2025.
■520    ▼aFlooding  continues  to  pose  a  global  threat  to  life  and  property  and  communities  in  both  rural  and  urban  areas  face  compound  flood  risk  from  riverine,  pluvial,  coastal  flooding,  or  combinations  of  these  three  types.  Riverine  flooding  is  often  managed  with  levees  that  reduce  the  frequency  of  low-magnitude  floods  and  protect  infrastructure  in  low-lying  floodplains.  Flooding  in  urban  areas  is  often  managed  with  stormwater  collection  systems,  which  convey  water  away  from  populated  areas.  Sufficiently  large  precipitation  events  can  overwhelm  flood  defense  infrastructure,  especially  when  the  infrastructure  is  poorly  maintained  or  degraded  from  its  design  specifications.  Levees  can  fail  due  to  overtopping  or  erosion  and  stormwater  collection  systems  can  exhibit  unexpected  capacity  reductions,  for  example  due  to  blockages.  In  recent  decades,  advancements  in  low-cost  depth,  velocity,  flow  sensors,  increases  in  computer  modeling  resolution,  and  new  data  processing  algorithms  have  given  municipalities  a  broad  set  of  tools  for  monitoring  and  modeling  their  combined  flood  risk.  Given  the  rapid  development  of  these  tools,  there  are  still  many  unanswered  questions  about  how  to  efficiently  and  effectively  allocate  sensors,  interpret  sensor  and  model  data  to  characterize  flood  risk,  and  validate  the  outputs.  This  thesis  addresses  aspects  of  these  three  questions  through  case  studies  and  simulations  in  a  levee  protected  floodplain,  a  model  of  an  urban  stormwater  system,  and  a  laboratory-scale  stormwater  pipe.  Specifically,  the  studies  address  monitoring  of  flood  propagation  in  real  time,  detection  of  stormwater  system  sections  that  are  at  risk  of  overflow,  and  diagnosis  of  blockages  and  retention  basin  silting  in  early  stages  of  formation.  The  first  study  explores  installing  a  sensitivity-based  flow  depth  sensor  network  across  a  floodplain  to  calibrate  flow  resistance  parameters  for  a  levee  breach  flood  model  in  real  time.  The  sparse  network  of  sensors  is  sufficient  to  accurately  estimate  the  parameters  and  produce  an  accurate  flood  forecast  with  enough  lead  time  to  guide  downstream  emergency  preparation.  The  following  three  studies  focus  on  sensor  applications  to  urban  stormwater  system  monitoring  for  emergent  flood  risk.  The  first  study  in  this  vein  optimizes  the  placement  of  depth  and  flow  sensors  in  a  large  (~1000  manhole)  sewer  system  to  ensure  complete  detection  of  pipe  blockage  driven  overflows.  Optimized  networks  consist  of  sensors  in  manholes  with  large  fields  of  view,  meaning  they  experience  backup  from  blockages  far  downstream.  Results  from  numerical  simulations  show  that  the  optimized  sensor  networks  outperform  randomly  assigned  sensor  networks  in  blockage-induced  overflow  detection.  In  the  second  study,  fire  hydrant  flushing  is  used  as  a  known  impulse  to  a  section  of  stormwater  system  and  the  resulting  impulse-response  hydrograph  measured  downstream  is  used  to  detect  blockages  and  retention  basin  silting.  A  calibration-optimization  procedure  estimates  the  parameters  of  a  simple  stormwater  system  numerical  model  to  also  diagnose  the  location  and  severity  of  the  blockages  and  retention  basin  silting.  Blockages  and  retention  basin  silting  of  varying  severity  were  accurately  diagnosed  with  the  procedure  under  increasing  noise  contamination,  though  localization  and  severity  characterization  suffered  at  high  noise  levels.  For  the  final  study,  blockage  detection  from  downstream  depth  sensor  measurements  is  investigated  with  experiments  in  a  laboratory-scale  stormwater  system.  A  hydrograph  recession  rate  metric  was  able  to  accurately  detect  and  locate  in  time  a  40%  and  60%  pipe  diameter  constriction  from  a  sensor  placed  60  diameters  downstream  of  the  blockage.  This  result  introduces  a  novel  sewer  data  analysis  technique  with  the  potential  to  augment  existing  data-driven  blockage  detection  methods.  Taken  together,  this  thesis  builds  new  methodologies  for  implementation  of  sensor-based  flood  risk  management,  but  also  highlights  the  need  for  developing  solutions  tailored  to  the  needs  of  specific  municipalities  due  to  the  diverse  range  of  flood  risks  and  no  one-size-fits-all  approach.
■590    ▼aSchool  code:  0058.
■650  4▼aHydraulic  engineering
■650  4▼aFluid  mechanics
■650  4▼aEnvironmental  engineering
■653    ▼aFlooding
■653    ▼aHydraulic  modeling
■653    ▼aLevee  breach
■653    ▼aSewer  sensing
■653    ▼aStormwater  management
■690    ▼a0218
■690    ▼a0204
■690    ▼a0775
■690    ▼a0474
■71020▼aCornell  University▼bCivil  and  Environmental  Engineering.
■7730  ▼tDissertations  Abstracts  International▼g87-03B.
■790    ▼a0058
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17359015▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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