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Xueqiu Chen
College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China

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Journal article
Published: 25 April 2019 in Water
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The hydrology response was studied considering the established fact of land use change in Dapoling basin. The whole period was divided into two (1965–1985 and 1986–2012) according to the major land use and land cover change in this region. Xinanjiang model was used to simulate discharge data in the two periods. The hydrologic response to the change could be evaluated by inspecting the response of model parameters and flood elements. The results show that the lag time varied, and the hydrologic elements including the mean runoff depth, flood peak and kurtosis coefficient varied with the rainfall depth. This result is significant for studying the response of runoff characteristic from land use and land cover change.

ACS Style

Minmin Zhou; Simin Qu; Xueqiu Chen; Peng Shi; Shijin Xu; Hongyu Chen; Huiyan Zhou; Jianfeng Gou. Impact Assessments of Rainfall–Runoff Characteristics Response Based on Land Use Change via Hydrological Simulation. Water 2019, 11, 866 .

AMA Style

Minmin Zhou, Simin Qu, Xueqiu Chen, Peng Shi, Shijin Xu, Hongyu Chen, Huiyan Zhou, Jianfeng Gou. Impact Assessments of Rainfall–Runoff Characteristics Response Based on Land Use Change via Hydrological Simulation. Water. 2019; 11 (4):866.

Chicago/Turabian Style

Minmin Zhou; Simin Qu; Xueqiu Chen; Peng Shi; Shijin Xu; Hongyu Chen; Huiyan Zhou; Jianfeng Gou. 2019. "Impact Assessments of Rainfall–Runoff Characteristics Response Based on Land Use Change via Hydrological Simulation." Water 11, no. 4: 866.

Journal article
Published: 15 September 2018 in Water
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To date, floods have become one of the most severe natural disasters on Earth. Flood forecasting with hydrological models is an important non-engineering measure for flood control and disaster reduction. The Xin’anjiang (XAJ) model is the most widely used hydrological model in China for flood forecasting, while the Soil and Water Assessment Tool (SWAT) model is widely applied for daily and monthly simulation and has shown its potential for flood simulation. The objective of this paper is to evaluate the performance of the SWAT model in simulating floods at a sub-daily time-scale in a slightly larger basin and compare that with the XAJ model. Taking Qilijie Basin (southeast of China) as a study area, this paper developed the XAJ model and SWAT model at a sub-daily time-scale. The results showed that the XAJ model had a better performance than the sub-daily SWAT model regarding relative runoff error (RRE) but the SWAT model performed well according to relative peak discharge error (RPE) and error of occurrence time of peak flow (PTE). The SWAT model performed unsatisfactorily in simulating low flows due to the daily calculation of base flow but behaved quite well in simulating high flows. We also evaluated the effect of spatial scale on the SWAT model. The results showed that the SWAT model had a good applicability at different spatial scales. In conclusion, the sub-daily SWAT model is a promising tool for flood simulation though more improvements remain to be studied further.

ACS Style

Dachen Li; Simin Qu; Peng Shi; Xueqiu Chen; Feng Xue; Jianfeng Gou; Wenhao Zhang. Development and Integration of Sub-Daily Flood Modelling Capability within the SWAT Model and a Comparison with XAJ Model. Water 2018, 10, 1263 .

AMA Style

Dachen Li, Simin Qu, Peng Shi, Xueqiu Chen, Feng Xue, Jianfeng Gou, Wenhao Zhang. Development and Integration of Sub-Daily Flood Modelling Capability within the SWAT Model and a Comparison with XAJ Model. Water. 2018; 10 (9):1263.

Chicago/Turabian Style

Dachen Li; Simin Qu; Peng Shi; Xueqiu Chen; Feng Xue; Jianfeng Gou; Wenhao Zhang. 2018. "Development and Integration of Sub-Daily Flood Modelling Capability within the SWAT Model and a Comparison with XAJ Model." Water 10, no. 9: 1263.

Journal article
Published: 31 August 2018 in Water
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The stable isotopes of oxygen and hydrogen in the water cycle have become a significant tool to study run-off formation, hydrograph separation, and the origin of precipitation. Precipitation assessment based on isotopic data has a potential implication for moisture sources. In the study, δD and δ18O of precipitation samples collected from six rainfall events were analyzed for stable isotope composition to provide implication of isotopic characteristics as well as moisture sources in Hemuqiao basin within Lake Tai drainage basin, eastern China. In these events, stable oxygen and hydrogen isotopic composition of precipitation had strong variations. Models of the meteoric water line and deuterium excess for different rainfall types (typhoon and plum rain, which is caused by precipitation along a persistent stationary front known as the Meiyu front for nearly two months during the late spring and early summer between eastern Russia, China, Taiwan, Korea and Japan) were established. Compared with plum rain, the moisture source of typhoon events had higher relative humidity and temperature. Moisture transport pathways were traced using the Hybrid Single-Particle Lagrangian Integrated Trajectory Model (HYSPLIT Model, developed by NOAA, Washington DC, U.S.) to verify the linkage with isotopic composition and moisture source. The moisture sources of typhoon events mostly derived from tropical ocean air with higher isotopic value, while that of plum rain events came from near-source local air with lower isotopic value.

ACS Style

Simin Qu; Xueqiu Chen; Yifan Wang; Peng Shi; Shuai Shan; Jianfeng Gou; Peng Jiang. Isotopic Characteristics of Precipitation and Origin of Moisture Sources in Hemuqiao Catchment, a Small Watershed in the Lower Reach of Yangtze River. Water 2018, 10, 1170 .

AMA Style

Simin Qu, Xueqiu Chen, Yifan Wang, Peng Shi, Shuai Shan, Jianfeng Gou, Peng Jiang. Isotopic Characteristics of Precipitation and Origin of Moisture Sources in Hemuqiao Catchment, a Small Watershed in the Lower Reach of Yangtze River. Water. 2018; 10 (9):1170.

Chicago/Turabian Style

Simin Qu; Xueqiu Chen; Yifan Wang; Peng Shi; Shuai Shan; Jianfeng Gou; Peng Jiang. 2018. "Isotopic Characteristics of Precipitation and Origin of Moisture Sources in Hemuqiao Catchment, a Small Watershed in the Lower Reach of Yangtze River." Water 10, no. 9: 1170.

Case report
Published: 24 April 2018 in Water
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The main purpose of this study is to explore the runoff generation mechanism and isotopic variation of precipitation during typhoon and plum rain events in the mountainous region mainly covered with bamboo in southeastern China. The isotopic value of precipitation in plum rain events is more depleted than that of precipitation in typhoon events and has a larger range of d-excess. Typhoon events are affected by frequent temperate and tropical cyclones, the ocean evaporationis expected to be very intenseand marine air parcels move very quickly. As for plum rain events, marine air parcel moves slowly due to the blocking effect of the cold front and air moisture evaporated from the continent plays a significant role in the isotope of precipitation depletion process. The difference of stable isotope values in various water sources allows the two-component hydrological separation to quantify the contribution of the event and pre-event water. The results indicate that the pre-event water accounts for at least 60% of the discharge and the difference in proportion of pre-event water between different types of rain events suggests that the initial state of watershed, rainfall intensity and macropore flow are major control factors of the runoff production mechanism.

ACS Style

Jianfeng Gou; Simin Qu; Peng Shi; Dachen Li; Xueqiu Chen; Yifan Wang; Shuai Shan; Wei Si. Application of Stable Isotope Tracer to Study Runoff Generation during Different Types of Rainfall Events. Water 2018, 10, 538 .

AMA Style

Jianfeng Gou, Simin Qu, Peng Shi, Dachen Li, Xueqiu Chen, Yifan Wang, Shuai Shan, Wei Si. Application of Stable Isotope Tracer to Study Runoff Generation during Different Types of Rainfall Events. Water. 2018; 10 (5):538.

Chicago/Turabian Style

Jianfeng Gou; Simin Qu; Peng Shi; Dachen Li; Xueqiu Chen; Yifan Wang; Shuai Shan; Wei Si. 2018. "Application of Stable Isotope Tracer to Study Runoff Generation during Different Types of Rainfall Events." Water 10, no. 5: 538.