搜索结果: 1-15 共查到“水文学 time”相关记录74条 . 查询时间(0.162 秒)
Rainfall-Runoff Modeling for an Experimental Watershed of Western Greece Using Extended Time-Area Method and GIS
Rainfall-runoff modeling Forested watershed Time-area method Flow velocity
2015/8/11
In this study, an effort was made to simulate the transformation of rainfall into runoff, in a small experimental mountainous-forested watershed in western Greece. The main objective was the productio...
Rainfall-Runoff Modeling for an Experimental Watershed of Western Greece Using Extended Time-Area Method and GIS
Rainfall-runoff modeling Forested watershed Time-area method
2015/1/6
In this study, an effort was made to simulate the transformation of rainfall into runoff, in a small experimental mountainous-forested watershed in western Greece. The main objective was the productio...
COMBINING PROBABILITY OF EMPTINESS AND MEAN FIRST OVERFLOW TIME OF A DAM TO DETERMINE ITS CAPACITY
Stochastic simulation dam process behavior analysis
2014/11/12
Probabilistic considerations have been practiced in determining the capacity of a dam after the
introduction of probability theory of dams by P. A. P. Moran (1954). Various researchers determined
th...
近年来关于浮游动物与微囊藻相互作用的研究逐渐被关注,其中有的研究认为浮游动物能够诱导产毒细胞毒素含量的变化.微囊藻毒素是由微囊藻毒素合成基因编码翻译的,目前关于浮游动物对微囊藻毒素合成基因相对表达的影响并无报道,本文首次通过实时定量逆转录PCR方法研究铜绿微囊藻PCC7806产毒相关基因mcyB和mcyD在大型蚤胁迫下相对表达变化.结果显示微囊藻mcyB、mcyD基因相对表达均有上调,表明铜绿微囊...
Evapotranspiration modelling at large scale using near-real time MSG SEVIRI derived data
Evapotranspiration modelling using near-real MSG SEVIRI
2011/3/15
We present an evapotranspiration (ET) model developed in the framework of the EUMETSAT "Satellite Application Facility" (SAF) on Land Surface Analysis (LSA). The model is a simplified Soil-Vegetation-...
A multiple threshold method for fitting the generalized Pareto distribution to rainfall time series
generalized Pareto distribution rainfall time series
2010/12/22
Previous studies indicate the generalized Pareto distribution (GPD) as a suitable distribution function to reliably describe the exceedances of daily rainfall records above a proper optimum threshold,...
Dating of streamwater using tritium in a post nuclear bomb pulse world: continuous variation of mean transit time with streamflow
tritium nuclear bomb pulse world
2010/12/22
Tritium measurements of streamwater draining the Toenepi catchment, a small dairy farming area in Waikato, New Zealand, have shown that the mean transit time of the water varies with the flow rate of ...
Space-time variability of hydrological drought and wetness in Iran using NCEP/NCAR and GPCC datasets
Space-time variability hydrological drought wetness NCEP/NCAR
2010/12/22
Space-time variability of hydrological drought and wetness over Iran is investigated using the National Centers for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) reanal...
Forecasting high waters at Venice Lagoon using chaotic time series analysis and nonlinear neural networks
high waters Venice Lagoon chaotic time series analysis nonlinear neural networks
2009/12/7
Time series analysis using nonlinear dynamics systems theory and multilayer neural networks models have been applied to the time sequence of water level data recorded every hour at 'Punta della Salute...
Improved non-linear transfer function and neural network methods of flow routing for real-time forecasting
non-linear transfer function neural network methods flow routing real-time forecasting
2009/12/4
Data-based methods of flow forecasting are becoming increasingly popular due to their rapid development times, minimum information requirements, and ease of real-time implementation, with transfer fun...
Comparative application of artificial neural networks and genetic algorithms for multivariate time-series modelling of algal blooms in freshwater lakes
Comparative application artificial neural networks genetic algorithms time-series modelling
2009/12/4
The paper compares potentials and achievements of artificial neural networks and genetic algorithms in terms of forecasting and understanding of algal blooms in Lake Kasumigaura (Japan). Despite the c...
Calculation of time of concentration for hydrologic design and analysis using geographic information system vector objects
time of concentration hydrologic design geographic information system vector objects
2009/12/4
Synthetic unit hydrographs are commonly used to estimate runoff from rainfall events in a hydrologic analysis. A key parameter required as part of any hydrologic analysis using a synthetic unit hydrog...
Genetic algorithms for real-time operation of multipurpose water resource systems
Genetic algorithms real-time operation multipurpose water resource systems
2009/12/4
This paper deals with the application of genetic algorithms to the operation of a water resource system in real time. A genetic algorithm was developed and applied to solve an optimization model for t...
EC-SVM approach for real-time hydrologic forecasting
EC-SVM approach real-time hydrologic forecasting
2009/12/4
This study demonstrates a combined application of chaos theory and support vector machine (SVM) in the analysis of chaotic time series with a very large sample data record. A large data record is ofte...
Efficient implementation of inverse approach for forecasting hydrological time series using micro GA
Efficient implementation inverse approach hydrological time series micro GA
2009/12/4
This paper implements the inverse approach for forecasting hydrological time series in an efficient way using a micro-GA (mGA) search engine. The inverse approach is based on chaos theory and it invol...