Search Results - "Modarres, R."
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1
Multi-criteria validation of artificial neural network rainfall-runoff modeling
Published in Hydrology and earth system sciences (19-03-2009)“…In this study we propose a comprehensive multi-criteria validation test for rainfall-runoff modeling by artificial neural networks. This study applies 17…”
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2
Dry spell trend analysis of Isfahan Province, Iran
Published in International journal of climatology (01-08-2009)“…In the present study the spatiotemporal trend analysis of the annual maximum dry spell length (AMDSL) and the annual number of dry spell periods (ANDSPs) of…”
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3
Regional maximum wind speed frequency analysis for the arid and semi-arid regions of Iran
Published in Journal of arid environments (01-07-2008)“…Although many papers have been published on the role of wind speed on wind erosion, most of them did not consider the probability or return period of wind…”
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4
Modeling the relationship between climate oscillations and drought by a multivariate GARCH model
Published in Water resources research (01-01-2014)“…Typical multivariate time series models may exhibit comovement in mean but not in variance of hydrologic and climatic variables. This paper introduces…”
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5
Modeling rainfall–runoff relationship using multivariate GARCH model
Published in Journal of hydrology (Amsterdam) (30-08-2013)“…•Two multivariate GARCH models, diagonal VECH and CCC, are introduced.•Conditional variance–covariance structure of rainfall runoff process is…”
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6
Identification of homogeneous regions for regionalization of watersheds by two-level self-organizing feature maps
Published in Journal of hydrology (Amsterdam) (13-02-2014)“…•In this study U-matrix was used as visual method to subdivide the trained SOM map.•An integration of SOM and Fuzzy c-mean algorithm for classification of…”
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7
The use of time series modeling for the determination of rainfall climates of Iran
Published in International journal of climatology (01-05-2007)“…In this study, regional climates of Iran were identified based on the properties of the monthly rainfall time series models of 28 main cities of Iran. The…”
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8
generalized conditional heteroscedastic model for temperature downscaling
Published in Climate dynamics (01-11-2014)“…This study describes a method for deriving the time varying second order moment, or heteroscedasticity, of local daily temperature and its association to large…”
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9
Modelling heteroscedasticty of streamflow times series
Published in Hydrological sciences journal (2013)“…Time series modelling approaches are useful tools for simulating and forecasting hydrological variables and their change through time. Although linear time…”
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10
Using the Principal Component Analysis Approach for Weighting Statistical, Climatic and Geographical Attributes of the Maximum 24-hour Rainfall and Spatial Clustering Analysis (A Case Study: Urmia Lake Basin)
Published in Ulūm-i āb va khāk (01-03-2019)“…Regionalization is one of the useful tools for carrying out effective analyses in regions lacking data or with having only incomplete data. One of the…”
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11
Regional precipitation climates of Iran
Published in Journal of hydrology, New Zealand (01-01-2006)“…Rainfall in Iran is complex, with unpredictable fluctuations from year to year and from region to region. At-site frequency analysis is inadequate for regional…”
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12
Parametric assessment of a low-swirl burner using the exergy analysis
Published in Energy (Oxford) (01-01-2015)“…The performance of a low-swirl burner (LSB) operating on natural gas is experimentally examined. Due to the unique features of the LSB, many studies have been…”
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13
Testing and Modelling the Volatility Change in ENSO
Published in Atmosphere-ocean (01-12-2013)“…The El Niño-Southern Oscillation (ENSO) is by far the most energetic climate signal. Any change in ENSO characteristics will have serious consequences for the…”
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14
Extreme value frequency analysis of wind data from Isfahan, Iran
Published in Journal of wind engineering and industrial aerodynamics (2008)“…Estimating maximum wind speed is an essential task in many fields of environmental and engineering risk analysis. This study used prevalent westerly annual…”
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15
Daily air pollution time series analysis of Isfahan City
Published in International journal of environmental science and technology (Tehran) (2005)“…Different time series analysis of daily air pollution of Isfahan city were performed in this study. Descriptive analysis showed different long-term variation…”
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16
Transient response of finned-tube condenser in household refrigerators
Published in Applied thermal engineering (01-10-2006)“…A distributed parameter model for prediction of the transient performance of a condenser is presented. The model is capable of predicting the refrigerant…”
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17
Spatially constrained clustering and upper level set scan hotspot detection in surveillance geoinformatics
Published in Environmental and ecological statistics (01-12-2006)“…We discuss upper level set (ULS) scan as a type of spatially constrained clustering in relation to two ways of imposing the spatial constraint, retrospectively…”
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18
Data-based analysis of bivariate copula tail dependence for drought duration and severity
Published in Hydrological processes (15-05-2013)“…In recent decades, copula functions have been applied in bivariate drought duration and severity frequency analysis. Among several potential copulas, Clayton…”
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19
Dust Storm Frequency in Connection with Climatic Change in the Arid Region of Iran
Published in Ulūm-i āb va khāk (01-03-2022)“…Dust storms in arid and semi-arid regions have harmful impacts on the environment, the economy, and the health of local and global communities. In this study,…”
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20
Risk Factors for Post Endoscopic Retrograde Cholangiopancreatography Pancreatitis and Hyperamylasemia
Published in Majallah-i Dānishgāh-i ʻUlūm-i Pizishkī̄-i Bābul (01-11-2011)“…BACKGROUND AND OBJECTIVE: Acute post ERCP pancreatitis (PEP) is still the most common complication of endoscopic retrograde cholangiopancreatography (ERCP),…”
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