نتایج جستجو برای: sequential streamflow routing method

تعداد نتایج: 1750624  

2011
Hoori Ajami Peter A. Troch Thomas Maddock Thomas Meixner Chris Eastoe

[1] Despite the importance of mountainous catchments for providing freshwater resources, especially in semi-arid regions, little is known about key hydrological processes such as mountain block recharge (MBR). Here we implement a data-based method informed by isotopic data to quantify MBR rates using recession flow analysis. We applied our hybrid method in a semi-arid sky island catchment in so...

2004
Kyle W. Blasch Ty P. A. Ferré John P. Hoffmann

streamflow. They visually identified changes in streambed temperature wave amplitudes to determine the start and A moving standard deviation (MSD) technique is developed to end of streamflow events. Although this visual inspecinfer the onset and cessation of ephemeral streamflow using temperation technique has been successfully demonstrated in ture data from the upper 2.25 m of streambed sedime...

Alireza Borhani Dariane Reza Esmaeelzadeh

Streamflow forecasting has an important role in water resource management (e.g. flood control, drought management, reservoir design, etc.). In this paper, the application of Adaptive Neuro Fuzzy Inference System (ANFIS) is used for long-term streamflow forecasting (monthly, seasonal) and moreover, cross-validation method (K-fold) is investigated to evaluate test-training data in the model.Then,...

2015
DENGFENG LIU JIANXIA CHANG FUQIANG TIAN QIANG HUANG XIANMENG MENG

The baseflow is the drainage from the groundwater and soil water to the streamflow. As one important source of the streamflow, the baseflow could be the main source of the streamflow in the dry season. The Wei River, located in the semi-arid region of the Loess Plateau which is overlain by deep and loose soil, is the largest tributary of the Yellow River. According to former research, most of t...

2004
B. Sivakumar W. W. Wallender C. E. Puente M. N. Islam

This study introduces a nonlinear deterministic approach for streamflow disaggregation. According to this approach, the streamflow transformation process from one scale to another is treated as a nonlinear deterministic process, rather than a stochastic process as generally assumed. The approach follows two important steps: (1) reconstruction of the scalar (streamflow) series in a multidimensio...

Journal: :international journal of industrial engineering and productional research- 0
yahia zare mehrjerdi department of industrial engineering, yazd university yazd iran ali nadizadeh

using greedy clustering method to solve capacitated location-routing problem with fuzzy demands abstract in this paper, the capacitated location routing problem with fuzzy demands (clrp_fd) is considered. in clrp_fd, facility location problem (flp) and vehicle routing problem (vrp) are observed simultaneously. indeed the vehicles and the depots have a predefined capacity to serve the customerst...

Journal: :Remote Sensing 2017
Kang Liang

Hydrological predictions in ungauged lakes are one of the most important issues in hydrological sciences. The habitat of the Relict Gull (Larus relictus) in the Erdos Larus relictus National Nature Reserve (ELRNNR) has been seriously endangered by lake shrinkage, yet the hydrological processes in the catchment are poorly understood due to the lack of in-situ observations. Therefore, it is neces...

2013
Herbert Ssegane Devendra M. Amatya E. W. Tollner Zhaohua Dai Jami E. Nettles

Commonly used methods to predict streamflow at ungauged watersheds implicitly predict streamflow magnitude and temporal sequence concurrently. An alternative approach that has not been fully explored is the conceptualization of streamflow as a composite of two separable components of magnitude and sequence, where each component is estimated separately and then combined. Magnitude is modeled usi...

2015
Chen-Feng Yeh Jinge Wang Hsin-Fu Yeh Cheng-Haw Lee

Streamflow is an important factor in the study of water resource management, floods, and droughts. Dramatic climate change has created extreme rainfall distributions, making the study of streamflow trends and variability even more crucial. In this study, the long-term streamflow data and trends recorded at gauging stations in Northern Taiwan are analyzed using the Mann-Kendall test. The data us...

Journal: :Entropy 2016
Baohui Men Rishang Long Jianhua Zhang

In this study, we developed a model of combined streamflow forecasting based on cross entropy to solve the problems of streamflow complexity and random hydrological processes. First, we analyzed the streamflow data obtained from Wudaogou station on the Huifa River, which is the second tributary of the Songhua River, and found that the streamflow was characterized by fluctuations and periodicity...

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