Time variation of runoff
WebAug 24, 2024 · Event runoff coefficient, time scale, rise time, and peak discharge of more than 220,000 identified rainfall-runoff events are then used to analyze dynamics of event runoff response in 185 ... WebJul 13, 2024 · At the same time, the impact of human activities on hydrological processes is mainly through land use, soil and water conservation and water conservancy projects to change the underlying surface properties of the basin, so as to lead to spatial-temporal variations in the hydrological cycles and exert impact on runoff [7,8].
Time variation of runoff
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WebJul 10, 2010 · [6] We are interested in relating the space-time components of rainfall, runoff, and the routing process to the spatial distribution of imperviousness. To achieve this goal, we express the space-time variability of runoff, R(x,y,t) [L T −1], with an equation useful to define the generated runoff into pervious and impervious contributions. WebOct 1, 2024 · Fig. 13 presents the runoff responses to the variations of human activities. It shows that for every 1% increase in population and the drainage area of the reservoirs, the …
WebFeb 19, 2024 · Abrupt-change analysis methods can be applied to time-series runoff data 48 to determine the timing of significant, ... H. M. Runoff variation in minjiang river basin and its response to climate ... WebDec 30, 2024 · The objectives of this study are: (1) to test the variation trend and sudden change year of runoff, rainfall, and potential evaporation; (2) to calculate the hydrological change degree; (3) to analyze the contribution of climate and underlying surface changes to runoff; (4) to analyze the change of drought in the basin; (5) to evaluate the changes of …
WebOct 17, 2013 · The coefficient of variations for the daily, 2-day, 7-day and 10-day runoff time series is 1.37, 1.36, 1.33 and 1.32, respectively. This result shows the variation in runoff decrease with temporal scales, and the lowest variability and the weakest complexity are found at the coarsest resolution (10-day) (Table 1). WebIt is also called storm hydrograph or runoff hydrograph. Fig.13.1 shows the flood hydrograph. The flood hydrograph consists of all the three phases of runoff, viz. surface runoff, inter flow and base flow. Fig. 13.1. Flood hydrograph. (Sources: Das, 2002) Depending upon the unit of time involved, the hydrographs are classified as: (a) Annual ...
WebJan 24, 2024 · The variation of runoff over time is often influenced by a combination of factors. Runoff is not only characterised by trends and periodicity, but also by abrupt changes and a multi-scale structure, which has a multi-level evolution . The wavelet transform can clearly reveal the multiple cycles of runoff hidden in the time series.
WebApr 11, 2024 · This reflects significant variability in hydrological processes and runoff components in the three source regions. The d-excess values of these three source regions were higher than 10‰, with the order of LCR>YLR>YZR; these results are related to westerly moisture transport and cold temperatures, which may indicate that precipitation is the … hornstrider\u0027s pike of the harmoniousWebMar 1, 2024 · This study aims to reveal the runoff variation characteristics of long time series in a karst region, analyse comprehensively its different driving factors, and estimate … horn strobes storage roomsWebAug 23, 2013 · The identified time of the variation in the annual runoff is verified by a marked difference in mean values in the periods before and after it, which amounted to … hornstromp baldiWebAug 1, 2024 · Therefore, based on longer runoff series at more stations, the study attempts to systematically investigate the spatiotemporal characteristics of runoff variation and quantified the impacts of precipitation variation on runoff on space-time multi-scales in the YZB, using a comprehensive analysis method. horns tromp poppy playtimeWebHongze Lake plays a key role in flood and waterlogging prevention, analyzing the variation process and characteristics of multi-time scales will have a great practical significance to water resources management and regulation in the Huaihe River basin of China. This research proposed a combinatorial mutation test method to study the interannual … hornstromp toons animations neneWebNov 26, 2024 · The detailed segmentation of total runoff by the SPHY model is helpful to reveal the essential driving factors of long-time series runoff evolution. The ... Wu, Jinkui, Hongyuan Li, Jiaxin Zhou, Shuya Tai, and Xueliang Wang. 2024. "Variation of Runoff and Runoff Components of the Upper Shule River in the Northeastern Qinghai ... hornstromp animationWebApr 13, 2024 · The Tibetan Plateau (TP) or Third Pole is referred to as Asia’s water tower [1,2].Outside the polar areas, it has the most glaciers (95,500) and the greatest ice volume (7.02 ± 1.82 × 10 3 km 3) [3,4,5].The 13 major river systems in eastern, southern, and central Asia are nourished by precipitation, glaciers, and snowmelt water and provide water for … horn strobe spacing chart