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Papers by Parimita Saikia
International Journal of Engineering Research and, 2020
International Journal of Engineering Research & Technology, 2020
Groundwater is a major source of freshwater in many parts of the world. Some regions are excessiv... more Groundwater is a major source of freshwater in many parts of the world. Some regions are excessively dependent on it leading to groundwater consumption faster than it can be naturally replenished and causing water tables to decline unremittingly. Rajasthan is the largest state in the country and water resources supporting the human population are very less. Rajasthan has its water problems moreover , it is undergoing an industrial transformation. The objective of this study is to identify the groundwater critical zones, study the fluctuation of groundwater level and analyse the trend of groundwater level for each district using the Man-Kendall Test. In this study, Inverse Distance Weightage was applied for estimating the attribute values of locations that are within the database using known data values. Then the interpolated data values were extracted for Statistical Analysis using Man-Kendall's Test. Despite its importance, groundwater is poorly understood and often undervalued. Despite its importance, groundwater is poorly understood and often underestimated. Results show that the groundwater level had been at the most critical in 2010, i.e.-119 m bgl in pre-monsoon and-112 m bgl in post Monsoon. From 1996 to 2016, Mann-Kandell's Trend test illustrated a declining trend in Alwar, Dausa, Jaipur, Jaisalmer, Jhunjhunun, Sawai Madhopur and Sikar districts of Rajasthan.
Books by Parimita Saikia
Notion Press, 2018
Assam is the only plain state amongst the hill states of Northeast India. It is endowed with many... more Assam is the only plain state amongst the hill states of Northeast India. It is endowed with many wetlands. The distribution, shape, size, depth, flora-fauna etc. of the wetlands in Assam are largely dependent on the geo-ecological conditions of the region and human activities in the peripheral areas. Deepor Beel (wetland) is situated to the southwest of Guwahati city, Assam. It is a freshwater lake developed in a formerly abandoned channel of the Brahmaputra River. Originally, the wetland had its natural linkages with the Brahmaputra River. But due to human interference, the main link has already been disrupted. Land use and land cover (LULC) is considered as one of the most important components of the terrestrial environment system. The aim of the present study is to produce LULC maps of Deepor Beel area from 1977 to 2017 using LANDSAT imageries with the help of Remote Sensing and Geographic Information System (GIS) techniques supplemented with field observations. In this study, detection of changes that have taken place particularly in the built-up area is analyzed and subsequently predicts changes that might take place in the same over a given period. From this study, changes have been
observed in the peripheral areas i.e. in the Marshy/ Swampy areas than in the proper Wetland. The decrease of water spread area may be partially due to natural processes as well as human-induced factors. The tremendous increase in mix built up areas in and around Deepor beel due to its location near the urban and industrial areas. The study will focus the most significant areas under threat and need immediate conservation measures.
International Journal of Engineering Research and, 2020
International Journal of Engineering Research & Technology, 2020
Groundwater is a major source of freshwater in many parts of the world. Some regions are excessiv... more Groundwater is a major source of freshwater in many parts of the world. Some regions are excessively dependent on it leading to groundwater consumption faster than it can be naturally replenished and causing water tables to decline unremittingly. Rajasthan is the largest state in the country and water resources supporting the human population are very less. Rajasthan has its water problems moreover , it is undergoing an industrial transformation. The objective of this study is to identify the groundwater critical zones, study the fluctuation of groundwater level and analyse the trend of groundwater level for each district using the Man-Kendall Test. In this study, Inverse Distance Weightage was applied for estimating the attribute values of locations that are within the database using known data values. Then the interpolated data values were extracted for Statistical Analysis using Man-Kendall's Test. Despite its importance, groundwater is poorly understood and often undervalued. Despite its importance, groundwater is poorly understood and often underestimated. Results show that the groundwater level had been at the most critical in 2010, i.e.-119 m bgl in pre-monsoon and-112 m bgl in post Monsoon. From 1996 to 2016, Mann-Kandell's Trend test illustrated a declining trend in Alwar, Dausa, Jaipur, Jaisalmer, Jhunjhunun, Sawai Madhopur and Sikar districts of Rajasthan.
Notion Press, 2018
Assam is the only plain state amongst the hill states of Northeast India. It is endowed with many... more Assam is the only plain state amongst the hill states of Northeast India. It is endowed with many wetlands. The distribution, shape, size, depth, flora-fauna etc. of the wetlands in Assam are largely dependent on the geo-ecological conditions of the region and human activities in the peripheral areas. Deepor Beel (wetland) is situated to the southwest of Guwahati city, Assam. It is a freshwater lake developed in a formerly abandoned channel of the Brahmaputra River. Originally, the wetland had its natural linkages with the Brahmaputra River. But due to human interference, the main link has already been disrupted. Land use and land cover (LULC) is considered as one of the most important components of the terrestrial environment system. The aim of the present study is to produce LULC maps of Deepor Beel area from 1977 to 2017 using LANDSAT imageries with the help of Remote Sensing and Geographic Information System (GIS) techniques supplemented with field observations. In this study, detection of changes that have taken place particularly in the built-up area is analyzed and subsequently predicts changes that might take place in the same over a given period. From this study, changes have been
observed in the peripheral areas i.e. in the Marshy/ Swampy areas than in the proper Wetland. The decrease of water spread area may be partially due to natural processes as well as human-induced factors. The tremendous increase in mix built up areas in and around Deepor beel due to its location near the urban and industrial areas. The study will focus the most significant areas under threat and need immediate conservation measures.