Generation of Rainfall Intensity-Duration-Frequency curves for the Barak River Basin
Journal Title: Meteorology Hydrology and Water Management Research and Operational Applications - Year 2018, Vol 6, Issue 1
Abstract
Analysis of a design storm, explained as the expected rainfall intensity for a given storm duration and return period is carried out to establish Rainfall Intensity-Duration Frequency (IDF) relationships. The IDF relationships are essential for the designing of hydraulic structures for future planning and management. The intent was to determine IDF relationship for the Barak River Basin in India. This region receives heavy rainfall but lacks potential in harnessing the available water resources. Rain gauge stations are not so frequent in this region. Under this condition, the engineers are bound to use IDF relationships. Using the 24-hour annual maximum rainfall and disaggregated hourly maximum rainfall as a measure of rainfall intensity for each station, IDF curves and isopluvial maps of rainfall intensities of 30-minute to 24-hour durations were generated. Analysis was done using the best fit amongst the Gumbel, Log Pearson Type III and Lognormal probability distribution functions. The goodness-of-fit tests indicated the Log Pearson Type III distribution was a suitable distribution for the area. After developing IDF curves for each station, an average IDF curve was developed using the Thiessen Polygon method in ArcGIS. The IDF relationship developed can be used as valuable information for the planning and management of hydraulic structures in the region.
Authors and Affiliations
Violina Basumatary, Briti Sundar Sil
Keywords
Related Articles
- EP ID EP544566
- DOI 10.26491/mhwm/79175
- Views 123
- Downloads 0
Heat waves in Poland in the period 1951-2015: trends, patterns and driving factors
Heat waves were analysed on the basis of maximum daily temperature from 24 meteorological stations in Poland. Heat waves are defined as the longest continuous period during which Tmax (daily maximum air temperature) is e...
The impact of climatic conditions of spring flood formation on hydrograph shape of the Desna River
Climatic factors are the most important of all the factors that influence the hydrograph shape of a river; this is because they are dynamic in space and time. The presence of hydrographs with a similar shape in long-term...
Operational setup of the soil-perturbed, time-lagged Ensemble Prediction System at the Institute of Meteorology and Water Management – National Research Institute
The usage of Ensemble Prediction System (EPS)-based weather forecasts is nowadays becoming very popular and widespread, because ensemble means better represent weather-related risks than a single (deterministic) forecast...
Analysis of instruments for assessment of planned investments in water management
Integrated water resource management is a process oriented towards sustainable development through the shaping, allocation and monitoring of water resources, taking into account social, economic and environmental objecti...
Long-term total solar radiation variability at the Polish Baltic coast in Kołobrzeg within the period 1964-2013
This study is based on a 50-year data series (1964-2013) of total solar radiation (G) from the Kołobrzeg - station that is located on the Polish Baltic Sea coast and is characterised by a very high level of air quality....