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Volume 379
Proc. IAHS, 379, 55-60, 2018
https://doi.org/10.5194/piahs-379-55-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Proc. IAHS, 379, 55-60, 2018
https://doi.org/10.5194/piahs-379-55-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Pre-conference publication 05 Jun 2018

Pre-conference publication | 05 Jun 2018

Impact of urbanization on flood of Shigu creek in Dongguan city

Luying Pan, Yangbo Chen, and Tao Zhang Luying Pan et al.
  • Department of Water Resources and Environment, Sun Yat-sen University, Guangzhou, 510275, China

Abstract. Shigu creek is a highly urbanized small watershed in Dongguan City. Due to rapid urbanization, quick flood response has been observed, which posted great threat to the flood security of Dongguan City. To evaluate the impact of urbanization on the flood changes of Shigu creek is very important for the flood mitigation of Shigu creek, which will provide insight for flood planners and managers for if to build a larger flood mitigation system. In this paper, the Land cover/use changes of Shigu creek from 1987–2015 induced by urbanization was first extracted from a local database, then, the Liuxihe model, a physically based distributed hydrological model, is employed to simulate the flood processes impacted by urbanization. Precipitation of 3 storms was used for flood processes simulation. The results show that the runoff coefficient and peak flow have increased sharply.

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Due to rapid urbanization, quick flood response has been observed in Shigu creek, which posted great threat to the flood security. In this paper, the Land cover/use changes of Shigu creek from 1987–2015 induced by urbanization was extracted and the Liuxihe Model was employed to simulate the flood processes impacted by urbanization. Precipitation of 3 storms was used for flood processes simulation. The results show that the runoff coefficient and peak flow have increased sharply.
Due to rapid urbanization, quick flood response has been observed in Shigu creek, which posted...
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