International journal of scientific research, 2015
Jiadhol river system is one of the most dynamic rivers flowing out of the foothills of Himalaya i... more Jiadhol river system is one of the most dynamic rivers flowing out of the foothills of Himalaya in Arunachal Pradesh and joining mighty Brahmaputra in Dhemaji district of Assam. This river has created flood havoc in the District of Dhemaji due to frequent avulsion over the decades. The focus of this study is to understand the pattern of channel avulsion in the Jiadhol River. For the analysis the data on river planform are collected from the survey of India toposheets and a number of satellite imageries.The time series of river planform is used to analyze the pattern of channel avulsion. The analysis shows that before 1973, the Jiadhol River had tendency to shift from west to east, from 1973 to 1993 the shift was from east to west and after 1993 till present time the channel avulsions are from west to east. The distance between the new and the old course has reduced over time.
International Journal of Science and Research (IJSR), 2016
Basin morphometry is an important means of understanding a drainage basin using mathematically de... more Basin morphometry is an important means of understanding a drainage basin using mathematically derived parameters. In the present study basin morphometry has been analyzed under three broad aspects and they are the linear, areal and relief aspects. Within these aspects there are many parameters which are being determined by using mathematical formula on data derived from Toposheets of the study area. It is covering an area of 1094.93 sq. km. The drainage pattern of the upper section of the basin is trellis pattern and the lower section is anabranching. Floods are common phenomena of the lower section of this basin. This paper explains the role of basin morphometry specially the linear and relief aspect in providing condition for occurrence of flash floods in the lower section of Jiya Dhol River basin.
International Journal of Sciences Basic and Applied Research, Sep 2, 2014
Flood frequency analysis is an important mathematical modelling technique in determining the retu... more Flood frequency analysis is an important mathematical modelling technique in determining the return period of the probability of witnessing a particular discharge in a river, especially a peak discharge. Floods as periodic events in a river basin are associated with high discharge. In flood frequency analysis the annual peak discharge in a river is fitted in different probability distributions. Three important statistical methods, most commonly used in flood frequency analysis, are - Gumbel’s Extreme Value Distribution, Log Pearson Type III Distribution and Log Normal Distribution. In this paper, 40 years’ (i.e., 1973 to 2012) annual peak discharge series of the Jiya Dhol river has been tried to fit in the above mentioned frequency distribution models and the best distribution model(s) for the basin has been identified with the help of D-Index test. The Jiya Dhol river basin is one of the most flooded river basins in the Brahmaputra valley of Assam (India). Floods cause heavy loss of life and property in the flood seasons (i.e., usually the monsoon season) in Lakhimpur and Dhemaji Districts of the north bank of the Brahmaputra valley in Assam. The selection of best probability distribution method in the studied river basin with the recent available records will definitely help the planners and administrators to estimate the major flood events and save life and property accordingly.
Education is a means for the holistic development of the person that help a man to become a sensi... more Education is a means for the holistic development of the person that help a man to become a sensible human who can help in creating a beautiful environment not only for his own self but for all people living with him. Over time education has converted into a wellorganized system to produce the trained human resource with the capability of higher value addition and more profit making. With the commercialization of higher education, it has become a fast-growing market. It comes into existence as an obvious result of the introduction of liberalization, privatization, and globalization in the Indian economy. Many of the committees have recommended commercialization and privatization of higher education in order to improve its quality, to meet the demand of trained personnel, to reduce the financial burden on government and to facilitate modern expensive teaching techniques to the students. Commercialization and privatization of higher education have both positive as well as negative aspect. Expensive higher education is a common phenomenon in the western world and is giving good results but in a developing country like India, it is overburdened with many negative outcomes. The high disparity in income and purchasing power of the people in India has made it inaccessible for many of the meritorious poor candidates.
The Jiya Dhol River is a small tributary of the Brahmaputra in Assam Valley of India. It causes d... more The Jiya Dhol River is a small tributary of the Brahmaputra in Assam Valley of India. It causes devastating floods almost every year during monsoon season. This paper is an attempt to explore the impact of annual floods on the life of people in the basin and to study the tradition strategies for flood adaptation in the study area. The socioeconomic conditions of people living in different flood intensity areas within the basin are compared to understand the role of annual flood in framing the socioeconomic setup. For this purpose, various socioeconomic variables are selected based on available literature and a survey is conducted. Beside this secondary data are also collected for siltation, flood damage, and flood-related loss. The most important social implication of floods in the severely flood-affected villages has experienced an occupational shift from cultivators to wage laborers and higher out-migration of people as compared to another part of the basin. Although the government provided all the basic infrastructural facilities services are not available for a major period of a year. This study also concludes the traditional wisdom of flood management still plays a significant role in the management of flood in Jiya Dhol River basin.
Most of the north bank tributaries of the Brahmaputra River brings heavy loads of sediments to th... more Most of the north bank tributaries of the Brahmaputra River brings heavy loads of sediments to the plains and heavy siltation of riverbed become a major problem in the region. Jiya Dhol River is one among those rivers. It is very notorious in causing frequent floods, siltation, and channel shifting in the region. This paper is an attempt to understand the pattern of change of sediment load in the river. A Sediment rating curve has also been derived to establish an empirical relationship between Discharge and Sediment load of the river. The channel cross-section has been observed over a period of two years to understand the pattern of siltation in different sections of the river. Field measurements and photography are used to understand the actual scenario. The study shows fast siltation occurs in the riverbed during the rainy season while the river is dry for half of the year.
Jiadhol River is one of the most frequently flooded north bank tributaries of Brahmaputra. There ... more Jiadhol River is one of the most frequently flooded north bank tributaries of Brahmaputra. There are many factors responsible for the intensification of floods in this basin. Flood management is very important in this river. Flood hazard zonation of the basin helps in proper management and adaptation of the foods in the basin. This paper aims to develop a simple method for flood hazard zonation of the basin by using GIS. The method used here is multi-criteria weighed overlay analysis of GIS. This method includes many factors such as geomorphology, elevation, slope, drainage density, drainage network, flow accumulation, soil, ground water table and land cover/land cover, lithology and also proximity to drainage, confluence and embankment breaching point for flood hazard zonation. All factors are weighted according to their role in the occurrence of floods. Using the mentioned method, four hazard zones are derived, they are the severely flood prone zone, moderately flood prone zone, less flood-prone zone and flood free zones. Most of the upper basin comes under flood free zone except the river valleys. There are two distinct severely flood-prone zones in the lower part of the basin. Introduction Flood is the most common hazard witness by the world today. The area effect by floods every year covers a large portion of the human inhabited area. These areas are also the most densely populated ones, and that is why flood hazards throughout the world are responsible for causing heavy damage to the human kind. These are the natural phenomenon associated with the flood plains of the world. Floods are unavoidable, so we have to adapt to it and proper flood forecasting helps in better adaptation and management of floods. The scholars from different fields are continuously contributing lots of knowledge for improving the methods of forecasting flood as exactly as possible. India is a country in which large part of the country experiences the problem of flood every year. The concentration of 70% of the total annual rainfall within a period of just four months of monsoon makes the situation worst. The mighty Ganga-Brahmaputra flood plain along with other major floodplains experiences seasonal floods in the monsoon season in almost every year. Along with that the occurrence of flash floods in the Himalayas Rivers due to cloud burst. There are also tidal floods associated with cyclonal activities in the coastal area of the country. It is difficult to predict different floods with one method so different studies are necessary to understand the nature of different floods. Flood plain zonation is very significant in management and development of river basins (Jana, 1997). Its effectiveness increases by many folds with the use of more recent high resolution multi sensor satellite data (Prasad, et al., 2006), but due to lack of accessibility imageries with lower resolution are used. Singh, et al., (2013) has used Microwave Passive Remote Sensing (AMSR-R) in parts of Brahmaputra basin for monitoring floods. Jana (1997) used Survey of India toposheets of 1:50000 scale and IRS LISS-II for preparing flood hazard zones in North Bengal. Besides using the data from the satellite imageries, the basin morphometry, such as Digital Elevation Model, flow direction, flow
The effect of liberalization on the Indian economy is very much debated about. It was introduced ... more The effect of liberalization on the Indian economy is very much debated about. It was introduced in 1990 to the country's economy with the objectives of bringing economic growth and to bring micro stabilization and structural adjustment in the economy. Liberalization and privatization has limited the state's control in the economy and gave the private player much of the power. Also that the regional disparity in economic growth in India has substantially increased over time. This paper tests the convergence and divergence of regional disparity in economic growth after liberalization. This paper also validates the Inverted-U relationship between economic growth and interregional inequality given by Kuznets. The convergence test suggest of increasing divergence after liberalization. And the Kuznets's Inverted-U hypothesis is not applicable in India after liberalization.
Jiadhol river system is one of the most dynamic rivers flowing out of the foothills of Himalaya i... more Jiadhol river system is one of the most dynamic rivers flowing out of the foothills of Himalaya in Arunachal Pradesh and joining mighty Brahmaputra in Dhemaji district of Assam. This river has created flood havoc in the District of Dhemaji due to frequent avulsion over the decades. The focus of this study is to understand the pattern of channel avulsion in the Jiadhol River. For the analysis the data on river planform are collected from the survey of India toposheets and a number of satellite imageries. The time series of river planform is used to analyze the pattern of channel avulsion. The analysis shows that before 1973, the Jiadhol River had tendency to shift from west to east, from 1973 to 1993 the shift was from east to west and after 1993 till present time the channel avulsions are from west to east. The distance between the new and the old course has reduced over time. INTRODUCTION Channel avulsion is rapid abandonment of a river channel and formation of new river channel. According to Grade (2006), it is a sudden abandonment of part or whole of the stream for a new course at a lower level of floodplain. It occurs as a result of reduction in channel gradient of the existing channel due to aggradations. The mechanism of evolution of the present day avulsive systems includes (i) aggradation of channel and flood-plain by the accumulation of bed-load and suspended load, (ii) increasing but never the less subtle topographic differences and flood overspills; and (iii) avulsion due to over spilling and stream capture (Richards et al. 1993). Most of the avulsion activities are associated with those rivers which have high sediment load and lesser gradient (Jones and Schumm 1999). Many of the Himalayan Rivers, which have very high sediment load and witness drastic decrease in the gradient on crossing the Himalayas show rapid avulsion of channels in the lower catchments. According to Mitra et al. (2005) channel aggradations causes reduction of the channel gradient and reduced water carrying capacity of the channel, hence reduction in the velocity and sediment transporting capacity of the stream, which further enhances the silting up of the channel. The above sequence of events results in the abandonment of the existing course by the stream to seek a new course where it would get a greater hydraulic advantage. The stream initially becomes quite stable in its new path, as it is flowing along a topographically low area. However, with time the process of aggradations will proceed along this route also, making it vulnerable to avulsion. Eventually it will become a topographic high and a new avulsion will become progressively more likely. These alternate periods of stability and instability may last from a few tens of years to a few hundred years. The location and timing of avulsions are highly unpredictable. Similar concepts are also available in the works of Brizga and Finlayson (1990) on Channel avulsion the Thomp-son River and Mc Carthy and others (1992) on Okavango.
Basin morphometry is an important means of understanding a drainage basin using mathematically de... more Basin morphometry is an important means of understanding a drainage basin using mathematically derived parameters. In the present study basin morphometry has been analyzed under three broad aspects and they are the linear, areal and relief aspects. Within these aspects there are many parameters which are being determined by using mathematical formula on data derived from Toposheets of the study area. It is covering an area of 1094.93 sq. km. The drainage pattern of the upper section of the basin is trellis pattern and the lower section is anabranching. Floods are common phenomena of the lower section of this basin. This paper explains the role of basin morphometry specially the linear and relief aspect in providing condition for occurrence of flash floods in the lower section of Jiya Dhol River basin.
Flood frequency analysis is an important mathematical modelling technique in determining the retu... more Flood frequency analysis is an important mathematical modelling technique in determining the return period of the probability of witnessing a particular discharge in a river, especially a peak discharge. Floods as periodic events in a river basin are associated with high discharge. In flood frequency analysis the annual peak discharge in a river is fitted in different probability distributions. Three important statistical methods, most commonly used in flood frequency analysis, are - Gumbel’s Extreme Value Distribution, Log Pearson Type III Distribution and Log Normal Distribution. In this paper, 40 years’ (i.e., 1973 to 2012) annual peak discharge series of the Jiya Dhol river has been tried to fit in the above mentioned frequency distribution models and the best distribution model(s) for the basin has been identified with the help of D-Index test. The Jiya Dhol river basin is one of the most flooded river basins in the Brahmaputra valley of Assam (India). Floods cause heavy loss of life and property in the flood seasons (i.e., usually the monsoon season) in Lakhimpur and Dhemaji Districts of the north bank of the Brahmaputra valley in Assam. The selection of best probability distribution method in the studied river basin with the recent available records will definitely help the planners and administrators to estimate the major flood events and save life and property accordingly.
International journal of scientific research, 2015
Jiadhol river system is one of the most dynamic rivers flowing out of the foothills of Himalaya i... more Jiadhol river system is one of the most dynamic rivers flowing out of the foothills of Himalaya in Arunachal Pradesh and joining mighty Brahmaputra in Dhemaji district of Assam. This river has created flood havoc in the District of Dhemaji due to frequent avulsion over the decades. The focus of this study is to understand the pattern of channel avulsion in the Jiadhol River. For the analysis the data on river planform are collected from the survey of India toposheets and a number of satellite imageries.The time series of river planform is used to analyze the pattern of channel avulsion. The analysis shows that before 1973, the Jiadhol River had tendency to shift from west to east, from 1973 to 1993 the shift was from east to west and after 1993 till present time the channel avulsions are from west to east. The distance between the new and the old course has reduced over time.
International Journal of Science and Research (IJSR), 2016
Basin morphometry is an important means of understanding a drainage basin using mathematically de... more Basin morphometry is an important means of understanding a drainage basin using mathematically derived parameters. In the present study basin morphometry has been analyzed under three broad aspects and they are the linear, areal and relief aspects. Within these aspects there are many parameters which are being determined by using mathematical formula on data derived from Toposheets of the study area. It is covering an area of 1094.93 sq. km. The drainage pattern of the upper section of the basin is trellis pattern and the lower section is anabranching. Floods are common phenomena of the lower section of this basin. This paper explains the role of basin morphometry specially the linear and relief aspect in providing condition for occurrence of flash floods in the lower section of Jiya Dhol River basin.
International Journal of Sciences Basic and Applied Research, Sep 2, 2014
Flood frequency analysis is an important mathematical modelling technique in determining the retu... more Flood frequency analysis is an important mathematical modelling technique in determining the return period of the probability of witnessing a particular discharge in a river, especially a peak discharge. Floods as periodic events in a river basin are associated with high discharge. In flood frequency analysis the annual peak discharge in a river is fitted in different probability distributions. Three important statistical methods, most commonly used in flood frequency analysis, are - Gumbel’s Extreme Value Distribution, Log Pearson Type III Distribution and Log Normal Distribution. In this paper, 40 years’ (i.e., 1973 to 2012) annual peak discharge series of the Jiya Dhol river has been tried to fit in the above mentioned frequency distribution models and the best distribution model(s) for the basin has been identified with the help of D-Index test. The Jiya Dhol river basin is one of the most flooded river basins in the Brahmaputra valley of Assam (India). Floods cause heavy loss of life and property in the flood seasons (i.e., usually the monsoon season) in Lakhimpur and Dhemaji Districts of the north bank of the Brahmaputra valley in Assam. The selection of best probability distribution method in the studied river basin with the recent available records will definitely help the planners and administrators to estimate the major flood events and save life and property accordingly.
Education is a means for the holistic development of the person that help a man to become a sensi... more Education is a means for the holistic development of the person that help a man to become a sensible human who can help in creating a beautiful environment not only for his own self but for all people living with him. Over time education has converted into a wellorganized system to produce the trained human resource with the capability of higher value addition and more profit making. With the commercialization of higher education, it has become a fast-growing market. It comes into existence as an obvious result of the introduction of liberalization, privatization, and globalization in the Indian economy. Many of the committees have recommended commercialization and privatization of higher education in order to improve its quality, to meet the demand of trained personnel, to reduce the financial burden on government and to facilitate modern expensive teaching techniques to the students. Commercialization and privatization of higher education have both positive as well as negative aspect. Expensive higher education is a common phenomenon in the western world and is giving good results but in a developing country like India, it is overburdened with many negative outcomes. The high disparity in income and purchasing power of the people in India has made it inaccessible for many of the meritorious poor candidates.
The Jiya Dhol River is a small tributary of the Brahmaputra in Assam Valley of India. It causes d... more The Jiya Dhol River is a small tributary of the Brahmaputra in Assam Valley of India. It causes devastating floods almost every year during monsoon season. This paper is an attempt to explore the impact of annual floods on the life of people in the basin and to study the tradition strategies for flood adaptation in the study area. The socioeconomic conditions of people living in different flood intensity areas within the basin are compared to understand the role of annual flood in framing the socioeconomic setup. For this purpose, various socioeconomic variables are selected based on available literature and a survey is conducted. Beside this secondary data are also collected for siltation, flood damage, and flood-related loss. The most important social implication of floods in the severely flood-affected villages has experienced an occupational shift from cultivators to wage laborers and higher out-migration of people as compared to another part of the basin. Although the government provided all the basic infrastructural facilities services are not available for a major period of a year. This study also concludes the traditional wisdom of flood management still plays a significant role in the management of flood in Jiya Dhol River basin.
Most of the north bank tributaries of the Brahmaputra River brings heavy loads of sediments to th... more Most of the north bank tributaries of the Brahmaputra River brings heavy loads of sediments to the plains and heavy siltation of riverbed become a major problem in the region. Jiya Dhol River is one among those rivers. It is very notorious in causing frequent floods, siltation, and channel shifting in the region. This paper is an attempt to understand the pattern of change of sediment load in the river. A Sediment rating curve has also been derived to establish an empirical relationship between Discharge and Sediment load of the river. The channel cross-section has been observed over a period of two years to understand the pattern of siltation in different sections of the river. Field measurements and photography are used to understand the actual scenario. The study shows fast siltation occurs in the riverbed during the rainy season while the river is dry for half of the year.
Jiadhol River is one of the most frequently flooded north bank tributaries of Brahmaputra. There ... more Jiadhol River is one of the most frequently flooded north bank tributaries of Brahmaputra. There are many factors responsible for the intensification of floods in this basin. Flood management is very important in this river. Flood hazard zonation of the basin helps in proper management and adaptation of the foods in the basin. This paper aims to develop a simple method for flood hazard zonation of the basin by using GIS. The method used here is multi-criteria weighed overlay analysis of GIS. This method includes many factors such as geomorphology, elevation, slope, drainage density, drainage network, flow accumulation, soil, ground water table and land cover/land cover, lithology and also proximity to drainage, confluence and embankment breaching point for flood hazard zonation. All factors are weighted according to their role in the occurrence of floods. Using the mentioned method, four hazard zones are derived, they are the severely flood prone zone, moderately flood prone zone, less flood-prone zone and flood free zones. Most of the upper basin comes under flood free zone except the river valleys. There are two distinct severely flood-prone zones in the lower part of the basin. Introduction Flood is the most common hazard witness by the world today. The area effect by floods every year covers a large portion of the human inhabited area. These areas are also the most densely populated ones, and that is why flood hazards throughout the world are responsible for causing heavy damage to the human kind. These are the natural phenomenon associated with the flood plains of the world. Floods are unavoidable, so we have to adapt to it and proper flood forecasting helps in better adaptation and management of floods. The scholars from different fields are continuously contributing lots of knowledge for improving the methods of forecasting flood as exactly as possible. India is a country in which large part of the country experiences the problem of flood every year. The concentration of 70% of the total annual rainfall within a period of just four months of monsoon makes the situation worst. The mighty Ganga-Brahmaputra flood plain along with other major floodplains experiences seasonal floods in the monsoon season in almost every year. Along with that the occurrence of flash floods in the Himalayas Rivers due to cloud burst. There are also tidal floods associated with cyclonal activities in the coastal area of the country. It is difficult to predict different floods with one method so different studies are necessary to understand the nature of different floods. Flood plain zonation is very significant in management and development of river basins (Jana, 1997). Its effectiveness increases by many folds with the use of more recent high resolution multi sensor satellite data (Prasad, et al., 2006), but due to lack of accessibility imageries with lower resolution are used. Singh, et al., (2013) has used Microwave Passive Remote Sensing (AMSR-R) in parts of Brahmaputra basin for monitoring floods. Jana (1997) used Survey of India toposheets of 1:50000 scale and IRS LISS-II for preparing flood hazard zones in North Bengal. Besides using the data from the satellite imageries, the basin morphometry, such as Digital Elevation Model, flow direction, flow
The effect of liberalization on the Indian economy is very much debated about. It was introduced ... more The effect of liberalization on the Indian economy is very much debated about. It was introduced in 1990 to the country's economy with the objectives of bringing economic growth and to bring micro stabilization and structural adjustment in the economy. Liberalization and privatization has limited the state's control in the economy and gave the private player much of the power. Also that the regional disparity in economic growth in India has substantially increased over time. This paper tests the convergence and divergence of regional disparity in economic growth after liberalization. This paper also validates the Inverted-U relationship between economic growth and interregional inequality given by Kuznets. The convergence test suggest of increasing divergence after liberalization. And the Kuznets's Inverted-U hypothesis is not applicable in India after liberalization.
Jiadhol river system is one of the most dynamic rivers flowing out of the foothills of Himalaya i... more Jiadhol river system is one of the most dynamic rivers flowing out of the foothills of Himalaya in Arunachal Pradesh and joining mighty Brahmaputra in Dhemaji district of Assam. This river has created flood havoc in the District of Dhemaji due to frequent avulsion over the decades. The focus of this study is to understand the pattern of channel avulsion in the Jiadhol River. For the analysis the data on river planform are collected from the survey of India toposheets and a number of satellite imageries. The time series of river planform is used to analyze the pattern of channel avulsion. The analysis shows that before 1973, the Jiadhol River had tendency to shift from west to east, from 1973 to 1993 the shift was from east to west and after 1993 till present time the channel avulsions are from west to east. The distance between the new and the old course has reduced over time. INTRODUCTION Channel avulsion is rapid abandonment of a river channel and formation of new river channel. According to Grade (2006), it is a sudden abandonment of part or whole of the stream for a new course at a lower level of floodplain. It occurs as a result of reduction in channel gradient of the existing channel due to aggradations. The mechanism of evolution of the present day avulsive systems includes (i) aggradation of channel and flood-plain by the accumulation of bed-load and suspended load, (ii) increasing but never the less subtle topographic differences and flood overspills; and (iii) avulsion due to over spilling and stream capture (Richards et al. 1993). Most of the avulsion activities are associated with those rivers which have high sediment load and lesser gradient (Jones and Schumm 1999). Many of the Himalayan Rivers, which have very high sediment load and witness drastic decrease in the gradient on crossing the Himalayas show rapid avulsion of channels in the lower catchments. According to Mitra et al. (2005) channel aggradations causes reduction of the channel gradient and reduced water carrying capacity of the channel, hence reduction in the velocity and sediment transporting capacity of the stream, which further enhances the silting up of the channel. The above sequence of events results in the abandonment of the existing course by the stream to seek a new course where it would get a greater hydraulic advantage. The stream initially becomes quite stable in its new path, as it is flowing along a topographically low area. However, with time the process of aggradations will proceed along this route also, making it vulnerable to avulsion. Eventually it will become a topographic high and a new avulsion will become progressively more likely. These alternate periods of stability and instability may last from a few tens of years to a few hundred years. The location and timing of avulsions are highly unpredictable. Similar concepts are also available in the works of Brizga and Finlayson (1990) on Channel avulsion the Thomp-son River and Mc Carthy and others (1992) on Okavango.
Basin morphometry is an important means of understanding a drainage basin using mathematically de... more Basin morphometry is an important means of understanding a drainage basin using mathematically derived parameters. In the present study basin morphometry has been analyzed under three broad aspects and they are the linear, areal and relief aspects. Within these aspects there are many parameters which are being determined by using mathematical formula on data derived from Toposheets of the study area. It is covering an area of 1094.93 sq. km. The drainage pattern of the upper section of the basin is trellis pattern and the lower section is anabranching. Floods are common phenomena of the lower section of this basin. This paper explains the role of basin morphometry specially the linear and relief aspect in providing condition for occurrence of flash floods in the lower section of Jiya Dhol River basin.
Flood frequency analysis is an important mathematical modelling technique in determining the retu... more Flood frequency analysis is an important mathematical modelling technique in determining the return period of the probability of witnessing a particular discharge in a river, especially a peak discharge. Floods as periodic events in a river basin are associated with high discharge. In flood frequency analysis the annual peak discharge in a river is fitted in different probability distributions. Three important statistical methods, most commonly used in flood frequency analysis, are - Gumbel’s Extreme Value Distribution, Log Pearson Type III Distribution and Log Normal Distribution. In this paper, 40 years’ (i.e., 1973 to 2012) annual peak discharge series of the Jiya Dhol river has been tried to fit in the above mentioned frequency distribution models and the best distribution model(s) for the basin has been identified with the help of D-Index test. The Jiya Dhol river basin is one of the most flooded river basins in the Brahmaputra valley of Assam (India). Floods cause heavy loss of life and property in the flood seasons (i.e., usually the monsoon season) in Lakhimpur and Dhemaji Districts of the north bank of the Brahmaputra valley in Assam. The selection of best probability distribution method in the studied river basin with the recent available records will definitely help the planners and administrators to estimate the major flood events and save life and property accordingly.
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