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Author:

Ye, Chenlei (Ye, Chenlei.) | Xu, Zongxue (Xu, Zongxue.) | Lei, Xiaohui (Lei, Xiaohui.) | Zhang, Rui (Zhang, Rui.) | Chu, Qi (Chu, Qi.) | Li, Peng (Li, Peng.) | Ban, Chunguang (Ban, Chunguang.)

Indexed by:

EI Scopus SCIE

Abstract:

With climate change and urbanization development, urban areas are facing more serious floods. As a result, hydrological and hydrodynamic models have recently shown a broad application prospect in urban flood simulating and forecasting. For the area with rich inland rivers, urban water resources can be effectively regulated and redistributed through river networks and hydraulic structures scheduling. However, the lack of research on the effect of scheduling becomes a major limitation in model applications. Based on a coupled hy-drodynamics model, the current study simulates the flooding response to the combined rainstorm and scheduling scenarios and analyzes the river overflow at the community scale. The result indicated that three local regions in the Jin'an study area are inundated easily. The locations near Qinting Lake were more sensitive to the water regulation rules than others. In the model of control on Qinting Lake, section A is more sensitive to the schedule control than section B, while for section A, the water level increased by 1.44% under the return period (RP) (10 a), and the rate changed to 2.64% under the RP (100 a). The differences in inundation from various scenarios are relatively small. In the mode of joint discharge rules under RP (50 a), the water level changed by 4.77% in section A and 1.24% in section B. The simulation at the community scale considers the overflow process, and the results indicated that the total inundation area decreased by 12.8 ha under joint schedules. The significant effects to alleviate urban inundation mainly come from the decreased flood overflow from the channel, but not from the flooding nodes. This study provides promising references for urban flood management.

Keyword:

Hydrological hydrodynamic model Flood risk Urban water scheduling Urban inundation

Author Community:

  • [ 1 ] [Ye, Chenlei]Beijing Normal Univ, Coll Water Sci, Beijing 100875, Peoples R China
  • [ 2 ] [Xu, Zongxue]Beijing Normal Univ, Coll Water Sci, Beijing 100875, Peoples R China
  • [ 3 ] [Zhang, Rui]Beijing Normal Univ, Coll Water Sci, Beijing 100875, Peoples R China
  • [ 4 ] [Li, Peng]Beijing Normal Univ, Coll Water Sci, Beijing 100875, Peoples R China
  • [ 5 ] [Ban, Chunguang]Beijing Normal Univ, Coll Water Sci, Beijing 100875, Peoples R China
  • [ 6 ] [Ye, Chenlei]Beijing Key Lab Urban Hydrol Cycle & Sponge City T, Beijing 100875, Peoples R China
  • [ 7 ] [Xu, Zongxue]Beijing Key Lab Urban Hydrol Cycle & Sponge City T, Beijing 100875, Peoples R China
  • [ 8 ] [Zhang, Rui]Beijing Key Lab Urban Hydrol Cycle & Sponge City T, Beijing 100875, Peoples R China
  • [ 9 ] [Li, Peng]Beijing Key Lab Urban Hydrol Cycle & Sponge City T, Beijing 100875, Peoples R China
  • [ 10 ] [Ban, Chunguang]Beijing Key Lab Urban Hydrol Cycle & Sponge City T, Beijing 100875, Peoples R China
  • [ 11 ] [Lei, Xiaohui]China Inst Water Resources & Hydropower Res, State Key Lab Simulat & Regulat Water Cycle River, Beijing 100038, Peoples R China
  • [ 12 ] [Chu, Qi]Beijing Univ Technol, Beijing 100124, Peoples R China

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Source :

JOURNAL OF ENVIRONMENTAL MANAGEMENT

ISSN: 0301-4797

Year: 2022

Volume: 321

8 . 7

JCR@2022

8 . 7 0 0

JCR@2022

ESI Discipline: ENVIRONMENT/ECOLOGY;

ESI HC Threshold:47

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 10

SCOPUS Cited Count: 13

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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