8 publications
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Analysis of Trend in Rainfall Data using Mann-Kendall Test and Linear Regression MethodBy N VIVEKANANDAN, C SRISHAILAM
Abstract: Rainfall is a vital part of the hydrologic cycle and changes in its pattern directly influence the water resources of concerned regions. Changes in rainfall response as a result of climate change that gives alarming to hydrologists and water resource managers as these changes in rainfall quantity and frequency are altering the pattern of stream flows and demands, spatial and temporal distribution of runoff, soil moisture, etc. The drastic changes …
Published in International Journal of Water Resources Engineering · Vol. 8, Issue 2, 2022 · pp. 39–44 Read article →
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Rainfall Intensity-Duration-Frequency Analysis for Pune and Vadgaon Maval Regions Using L-Moments of LN2, EV1, GEV and Pareto DistributionsBy N VIVEKANANDAN
Abstract: Intensity-Duration-Frequency (IDF) of rainfall is considered as one of the important tools for planning and designing of various water resource projects. This can be achieved through IDF analysis by developing of IDF curve, which gives a plot of rainfall intensity versus rainfall duration and frequency (i.e., return period). This paper presents a study on rainfall IDF analysis using L-Moments of 2-parameter Log Normal, Extreme Value Type-1 (EV1), Generalized Extreme Value …
Published in International Journal of Water Resources Engineering · Vol. 8, Issue 1, 2022 · pp. 27–38 Read article →
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Effect of Data Length on Estimation of Probable Maximum Precipitation Using Hershfield MethodBy N VIVEKANANDAN
Abstract: Probable Maximum Precipitation (PMP) represents the greatest depth of precipitation for a given duration that is physically possible over a given size storm area at a particular geographical location and at a particular time of year. PMP is used for estimating probable maximum flood which, in turn, is used for design of major hydraulic structures such as dams and spillways, flood protection works and nuclear power plants. One of the …
Published in International Journal of Water Resources Engineering · Vol. 7, Issue 2, 2021 · pp. 44–49 Read article →
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Intercomparison of Peak Flood Discharge Estimates Using Normal, Gamma and Extreme Value Families of DistributionsBy N VIVEKANANDAN
Abstract: Estimation of Peak Flood Discharge (PFD) for a given return period is utmost importance for planning, design and management of hydraulic structures. This can be achieved through Flood Frequency Analysis (FFA) that involves fitting normal, gamma and extreme value families of distributions to the series of observed annual maximum discharge data. Based on the intended applications and the variate under consideration, Method of Moments (MoM), Maximum Likelihood Method (MLM) and …
Published in International Journal of Water Resources Engineering · Vol. 7, Issue 1, 2021 · pp. 9–25 Read article →
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Prediction of Rainfall Using MLP and RBF Networks for Monsoon and Post-Monsoon Seasons of Pune and Mahabaleshwar RegionsBy N VIVEKANANDAN
Abstract: Prediction of rainfall for a river basin has utmost importance for planning of irrigation and drainage system as also for command area development. For example, analysis of consecutive days of rainfall is more relevant for drainage design of agricultural lands whereas analysis of weekly rainfall data is relevant for planning of cropping pattern. Likewise, analysis of monthly and seasonal data is more useful for water management practices. With the development …
Published in International Journal of Water Resources Engineering · Vol. 7, Issue 1, 2021 · pp. 34–51 Read article →
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Selection of Best Fit Probability Distribution for Estimation of Peak Flood using Qualitative and Quantitative AssessmentsBy N VIVEKANANDAN
Abstract: Estimation of Peak Flood (PF) for a given return period is of utmost importance for planning and design of hydraulic structures. This can be achieved through Flood Frequency Analysis (FFA) of stream flow data by fitting normal, gamma and extreme value families of distributions to the series of observed annual peak flood data. In this paper, a study on estimation of PF for river Beas at Dhaulasidh site adopting 2-parameter …
Published in International Journal of Water Resources Engineering · Vol. 6, Issue 2, 2020 · pp. 28–38 Read article →
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Evaluation of Hydrodynamic Characteristics of Quarter Circular Breakwater by RBF Network and Regression ModelsBy N VIVEKANANDAN, N. Ramesh
Abstract: Breakwaters are massive structures constructed to provide the required tranquility within the ports and also used for safeguarding the beaches from eroding due to severe action of waves especially during inclement weather. In the recent years, innovative structures like Semi-Circular Breakwater (SCB) and Quarter Circular Breakwater (QCB) are being evolved to fulfill the ever increasing demand from coastal sector. QCB is a modified SCB, which is similar to caisson consists …
Published in International Journal of Water Resources Engineering · Vol. 6, Issue 2, 2020 · pp. 11–22 Read article →
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A Comparative Study on Gumbel and LP3 Probability Distributions for Estimation of Extreme RainfallBy N VIVEKANANDAN
Abstract: Estimation of extreme rainfall for a given return period has utmost importance for planning, design and management of hydraulic and other civil structures in a region. This can be achieved by Extreme Value Analysis (EVA) that involves fitting of probability distributions to the annual maximum series of rainfall. This paper details a study on EVA of hourly and daily rainfall for Santacruz and Colaba sites by adopting Gumbel and Log …
Published in International Journal of Water Resources Engineering · Vol. 6, Issue 1, 2020 · pp. 21–33 Read article →