Variation of Temperature and Precipitation in Urban Agglomeration and Prevention Suggestion of Waterlogging in Middle and Lower Reaches of Yangtze River

Na, Liu; Jin, Youjie; Jiaqi, Dai

doi:10.1088/1755-1315/128/1/012165

IOP Conf. Ser.: Earth Environ. Sci.

2018

DOI: 10.1088/1755-1315/128/1/012165

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Variation of Temperature and Precipitation in Urban Agglomeration and Prevention Suggestion of Waterlogging in Middle and Lower Reaches of Yangtze River

Liu Na

Youjie Jin

Dai Jiaqi

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The relative importance of antecedent soil moisture and precipitation in flood generation in the middle and lower Yangtze River basin

Wang¹,

Chen²,

Liu³

et al. 2022

Hydrol. Earth Syst. Sci.

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Abstract. Floods have caused severe environmental and socioeconomic losses worldwide in human history and are projected to exacerbate due to climate change. Many floods are caused by heavy rainfall with highly saturated soil; however, the relative importance of rainfall and antecedent soil moisture and how it changes from place to place has not been fully understood. Here we examined annual floods from more than 200 hydrological stations in the middle and lower Yangtze River basin. Our results indicate that the dominant factor in flood generation shifts from rainfall to antecedent soil moisture with the increase in watershed area. The ratio of the relative importance of antecedent soil moisture and daily rainfall (SPR) is positively correlated with topographic wetness index and has a negative correlation with the magnitude of annual floods. This linkage between watershed characteristics that are easy to measure and the dominant flood-generation mechanism provides a framework to quantitatively estimate potential flood risk in ungauged watersheds in the middle and lower Yangtze River basin.

show abstract

The relative importance of antecedent soil moisture and precipitation in flood generation in the middle and lower Yangtze River basin

Wang¹,

Chen²,

Liu³

et al. 2022

Hydrol. Earth Syst. Sci.

View full text Add to dashboard Cite

show abstract

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Variation of Temperature and Precipitation in Urban Agglomeration and Prevention Suggestion of Waterlogging in Middle and Lower Reaches of Yangtze River

Cited by 1 publication

References 0 publications

The relative importance of antecedent soil moisture and precipitation in flood generation in the middle and lower Yangtze River basin

The relative importance of antecedent soil moisture and precipitation in flood generation in the middle and lower Yangtze River basin

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