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Characterizing Extreme Precipitation in the Upper Midwest United States for Urban Watershed Management and Adaptation
Characterizing Extreme Precipitation in the Upper Midwest United States for Urban Watershed Management and Adaptation
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105258
- ISBN
- 9798263319793
- DDC
- 551
- 서명/저자
- Characterizing Extreme Precipitation in the Upper Midwest United States for Urban Watershed Management and Adaptation
- 발행사항
- [Sl] : University of Minnesota, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 97 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
- 주기사항
- Advisor: Gulliver, John S.;Erickson, Andrew J.
- 학위논문주기
- Thesis (Ph.D.)--University of Minnesota, 2025.
- 초록/해제
- 요약Urban watersheds, where the natural soils are often replaced with impervious cover during development, face flooding risks from extreme precipitation events. Such watersheds typically experience changes in their hydrologic properties with greater regularity than they observe the largest and most dangerous events, like the 100-year storm. As a result, watershed managers and stormwater engineers must address the risk from extreme precipitation under uncertainty. This dissertation focuses on three aspects of extreme precipitation relevant to designing infrastructure for risk reduction: (1) the extent to which extreme precipitation events are increasing in frequency; (2) the classification of adaptation strategies that most effectively mitigate flood impacts; and (3) the representation of rainfall distributions within extreme events.This research shows that extreme precipitation is increasing in frequency for the Upper Midwest United States, with weather stations 30\\% more likely to report the largest event on record in 2024 compared to the average between 1900 and 2024. Two inflection points in extreme precipitation dynamics were identified, with the most recent inflection occurring in 1970, when air temperatures also began to increase over the continental United States. The best strategy to reduce flood risk at a watershed level was found to be achieved by adding storage volume to the stormwater infrastructure network. Specifically, installing new stormwater ponds reduced both average water depth and peak outlet flow rate when compared to baseline conditions, which when combined with continuous monitoring and adaptive control technology provided the greatest benefit. This research also proposes a new method for quantifying intra-event rainfall intensity which can be used to generate rainfall distributions with specified intensity exceedance probabilities. These new distributions were simulated and compared to real storms recorded in Minnesota. The frequency with which real storms exceeded the runoff volume and runoff rate generated by a new curves was shown to reproduce the desired exceedance probability across several soil types.
- 일반주제명
- Hydrologic sciences
- 일반주제명
- Climate change
- 키워드
- Flooding
- 키워드
- Hyetograph
- 키워드
- Urban hydrology
- 기타저자
- University of Minnesota Civil Engineering
- 기본자료저록
- Dissertations Abstracts International. 87-05B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520260202105258
■006m o d
■007cr#unu||||||||
■020 ▼a9798263319793
■035 ▼a(MiAaPQ)AAI32279844
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a551
■1001 ▼aGallagher, Noah Donald.
■24510▼aCharacterizing Extreme Precipitation in the Upper Midwest United States for Urban Watershed Management and Adaptation
■260 ▼a[Sl]▼bUniversity of Minnesota▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a97 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-05, Section: B.
■500 ▼aAdvisor: Gulliver, John S.;Erickson, Andrew J.
■5021 ▼aThesis (Ph.D.)--University of Minnesota, 2025.
■520 ▼aUrban watersheds, where the natural soils are often replaced with impervious cover during development, face flooding risks from extreme precipitation events. Such watersheds typically experience changes in their hydrologic properties with greater regularity than they observe the largest and most dangerous events, like the 100-year storm. As a result, watershed managers and stormwater engineers must address the risk from extreme precipitation under uncertainty. This dissertation focuses on three aspects of extreme precipitation relevant to designing infrastructure for risk reduction: (1) the extent to which extreme precipitation events are increasing in frequency; (2) the classification of adaptation strategies that most effectively mitigate flood impacts; and (3) the representation of rainfall distributions within extreme events.This research shows that extreme precipitation is increasing in frequency for the Upper Midwest United States, with weather stations 30\\% more likely to report the largest event on record in 2024 compared to the average between 1900 and 2024. Two inflection points in extreme precipitation dynamics were identified, with the most recent inflection occurring in 1970, when air temperatures also began to increase over the continental United States. The best strategy to reduce flood risk at a watershed level was found to be achieved by adding storage volume to the stormwater infrastructure network. Specifically, installing new stormwater ponds reduced both average water depth and peak outlet flow rate when compared to baseline conditions, which when combined with continuous monitoring and adaptive control technology provided the greatest benefit. This research also proposes a new method for quantifying intra-event rainfall intensity which can be used to generate rainfall distributions with specified intensity exceedance probabilities. These new distributions were simulated and compared to real storms recorded in Minnesota. The frequency with which real storms exceeded the runoff volume and runoff rate generated by a new curves was shown to reproduce the desired exceedance probability across several soil types.
■590 ▼aSchool code: 0130.
■650 4▼aHydrologic sciences
■650 4▼aClimate change
■650 4▼aWater resources management
■653 ▼aExtreme precipitation
■653 ▼aFlooding
■653 ▼aHyetograph
■653 ▼aUrban hydrology
■690 ▼a0595
■690 ▼a0388
■690 ▼a0404
■71020▼aUniversity of Minnesota▼bCivil Engineering.
■7730 ▼tDissertations Abstracts International▼g87-05B.
■790 ▼a0130
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360061▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
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