نتایج جستجو برای: daily flows

تعداد نتایج: 276021  

Journal: :Water 2023

Changes in the hydrological regime are widely investigated using a variety of approaches. In this study, we assess changes annual and seasonal flow characteristics based on probabilistic representation runoff at daily time scale. The pattern is constructed by determining quantiles from marginal distributions flows for each day within year. By applying Fourier transformation statistics partial s...

Journal: :bulletin of the iranian mathematical society 2014
afshin parvardeh sareh goliforushani ahmad reza soltani

‎in this work we introduce and study discrete time periodically correlated stable‎ ‎processes and multivariate stationary stable processes related to periodic and cyclic‎ ‎flows‎. ‎our study involves producing a spectral representation and a‎ ‎spectral identification for such processes‎. ‎we show that the third‎ ‎component of a periodically correlated stable process has a component related to a...

سادات فیض نیا, , محمد مهدوی, , کارو لوکس, , علی رضایی, , محمد حسین مهدیان, ,

The model in this research was created based on the Artificial Neural Network (ANN) and calibrated in the Sefid-rood dam basin (excluding Khazar zone). This research was done by gathering and selecting peak flows of hydrographs from 12 sub basins, the concentration time of which was equal to or less than 24 hours and was caused only by rainfall. From all the selected sub basins, totally 661 hyd...

Journal: :Journal of fish biology 2011
B Stewart-Koster J D Olden M J Kennard B J Pusey E L Boone M Douglas S Jackson

In this study, relationships between flow variation across multiple temporal scales and the distribution and abundance of three fish species, western rainbowfish Melanotaenia australis, sooty grunter Hephaestus fuliginosus and barramundi Lates calcarifer were examined at eight sampling reaches in the Daly River, Northern Territory, Australia. Discharge was highly seasonal during the study perio...

2006
Remegio B. Confesor

This study explored the application of a multi-objective evolutionary algorithm (MOEA) and Pareto ordering in the multiple-objective automatic calibration of the Soil and Water Assessment Tool (SWAT). SWAT was calibrated in the Calapooia watershed, Oregon, USA, with two different pairs of objective functions in a cluster of 24 parallel computers. The non-dominated sorting genetic algorithm (NSG...

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