Nilendu Das

Indian Institute of Technology (Banaras Hindu University) Varanasi | BHU · Department of Civil Engineering

Processing of hyperspectral remote sensing datasets poses challenges in terms of computational expense pertaining to data redundancy. As such, band selection becomes indispensable to address redundancy while preserving the optimal spectral information. This paper proposes a novel architecture using Genetic Algorithm (GA) optimizing technique with R...

In this work, past earthquake values have been analyzed for the prediction of future earthquakes. As an effective computational technique, Artificial Neural Network (ANN) method has been used to develop possible tools for the prediction of magnitude of likely future earthquakes in Sikkim state of India, falling within the Indian Himalayan Region (I...

River Ganga is one of the most significant rivers in the country. This river is the adobe for numerous aquatic species and microorganisms. The color of the river suddenly changed to green due to the rise of algal bloom in the Varanasi and nearby regions of the river Ganga during May–June 2021. These algal blooms can be detrimental to the aquatic an...

The fluctuation in the river ecosystem network due to climate change-induced global warming affects aquatic organisms, water quality, and other ecological processes. Assessment of climate change-induced global warming impacts on regional hydrological processes is vital for effective water resource management and planning. The global warming efect o...

The proper functioning of the river ecosystem has been symbolised by healthy aquatic life. The river Ganga has shown signs of rejuvenation due to lockdown. In this study, an attempt has been made to analyse the change in river water quality using Sentinel-2 and Landsat-8 imageries. The quantitative analysis has been performed for temperature and no...

The temperature of a river is a fundamental aspect of its water quality and has a bearing on its ecosystem to a greater extent. Therefore, in systematic planning for optimal stream monitoring programs involving the determination of location at monitoring stations, understanding this crucial thermal parameter is much desired. This would help to give...

Excessive water use in the agricultural sector in the Betwa–Dhasan basin of the Bundelkhand region is becoming the cause of irrepressible drawdown in the groundwater level. These changing dynamics are becoming the cause of water scarcity in the basin and increasing difficulty in fulfilling the water demand of the area. For incorporating the water-s...

Sand-dominated rivers undergo a temporal change in surface water extent and in the supply of the water during the year. These rivers are mainly recharged through precipitation, which showcases their vulnerability to climate-change-induced aridification. Accurately detecting the surface water spread of the river is very significant for understanding...

A study based on ANN structure gives us the information to predict the size of the future in realizing a past event. ANN, IMD (Indian meteorological department) data and remote sensing were used to enable a number of parameters for calculating the size that may occur in the future. A threshold selected specifically above the high-frequency harvest...

The Lonar Lake of Maharashtra is a crater based-saline lake. During the month of June 2020, this lake suddenly changed its colour and turned to pink due to the presence of Haloarchaea microbes, and this species have a unique adaptation style to survive in high saline condition. The salinity of this lake is increasing due to less rainfall, low human...

Stream temperature is a fundamental aspect of water quality and ecosystem health of the river affecting its physical, chemical and biological processes; so, the monitoring and understanding of the thermal regime of rivers is extremely important. Water temperature affects water quality such as dissolved oxygen, pH, salinity and it also has influence...

Remote sensing–based flood inundation mapping and monitoring is very crucial input before, during, and after floods. Ganga–Ramganga doab is one of the prolonged flood-affected area in middle Ganga plain due to seasonal monsoon which leads to rise in water levels of Ganga and Ramganga rivers. The focus of the present study is to map severe flood con...

Rivers are the lifeline of human civilization from ancient times and almost all the human settlements had evolved around it. In this present era, human population has grown at a rapid pace and the anthropogenic activities have grown along with it. Pollution levels of rivers are increasing day by day due to increase in anthropogenic activities, as h...