Dipanwita K Dutta

Vidyasagar University · Department of Remote Sensing & GIS

This study delineates landslide susceptibility zones in the Kalimpong district by integrating multi-sensor datasets and assessing the effectiveness of statistical and machine learning models for precision mapping. The analysis utilises a comprehensive geospatial dataset, including remote sensing imagery, topographical, geological, and climatic fac...

With increasing extreme weather events, ground water crisis and population expansion, crop stress and production failure have emerged as critical challenges. Agricultural drought vulnerability (ADV) at local and regional scales has become a global concern as it is directly related to food security, hunger issues and poverty. The Kangsabati river ba...

This study, conducted in fire-prone dry deciduous forests of Ajodhya and Susunia hills, aims to assess the diverse impacts of forest fire events on vegetation health, soil nutrient balance, and availability of nontimber forest products (NTFPs) that conjointly modulate the livelihoods of local communities. Vegetation health and soil nutrient pool we...

The soil moisture drought is an intermediate event between meteorological and agricultural droughts. The information on soil moisture droughts provides an indication about the resilience of the agricultural systems. In the present study, a comparative assessment of the monthly soil moisture gridded data products of Modern Era Retrospective analysis...

A single-volume guide to recent advancements in geospatial techniques and their application on changing patterns of natural vegetation and crop stress. Vegetation Dynamics and Crop Stress explores the use of remote sensing as an instrumental field that harnesses advanced earth observation (EO) techniques to comprehend and monitor the ever-changing...

This book provides a multidisciplinary synthesis of the sustainable management of natural resources. The book presents applicable knowledge of land, water, and forest resources along with in-depth investigations of multiple management pathways. This book also demonstrated the contemporary applications of geospatial technology in data mining techniq...

Uncertainty and uneven distribution of monsoonal rainfall and its consequences on crop production is a matter of serious concern in India, specifically, in the Indo-Gangetic plain region. In this study, drought patterns were investigated through standardised precipitation index (SPI) of varying timescales, using the India Meteorological Department...

The economy of Paschim Medinipur district relies heavily on agriculture. More than 80% of its population residing in rural areas are highly dependent on agriculture for their livelihood. Despite its vast Rabi and Kharif cultivated areas, there are regional disparities in irrigational facilities, leading to low Rabi crop production in certain blocks...

The study investigates a high-resolution retrieval of AOD over complex surfaces and various aerosol regimes of South Asian countries such as China, Bangladesh and Nepal from Landsat 7/8/9 and Sentinel 2 images. To estimate AOD from these satellite images, unlike the conventional radiative transfer-based look-up-table (LUT) approach, this study uses...

The aim of this research was to simulate the future water balance of the Silwani watershed, Jharkhand, India, under the combined effect of land use and climate change based on the Soil and Water Assessment Tool (SWAT) and Cellular Automata (CA)-Markov Chain model. The future climate prediction was done based on daily bias-corrected datasets of the...

Shifting cultivation is an antique old-style of farming in the slopes of the north-eastern area of India, where it is regionally called as jhum agriculture. Nowadays, it has become jeopardy to biodiversity owing to the incrementing rate of population. In addition, this practice has become a major occupation and source of income for livelihoods. In...

The problem of air pollution, especially, the concentration of PM2.5 is a long-standing issue over the national capital territory of India (Delhi- NCT). This study seeks to explore the effect of surface waterbody on the spatial variation of PM2.5 in Delhi-NCT. As moisture determines the concentration of PM2.5 and other pollutants in the atmosphere,...

The aim of this research is to simulate the future water balance of the silwani watershed, Jharkhand, India under the combined effect of land use and climate change based on Soil and Water Assessment Tool (SWAT) and cellular automata (CA) Markov models. The future climate prediction was done based on daily bias-corrected datasets of INMCM5 climate...

Surface mining is the dominant driver of land use land cover (LULC) change in the Raniganj coalfield region in West Bengal, India. Owing to its multifaceted consequences on soil, water, and landholders, assessment of spatio-temporal changes in mining areas has become important. The oldest coal mine of India, Raniganj coalfield has been producing su...

Land use/land cover (LULC) change is an extremely significant drivingcomponent of ecological degradation in tropical regions where forests are under riskdue to various anthropogenic activities. The present study appraises changing patternof LULC (1999–2017) over the Intanki National Park (INP) in Nagaland (India) usingLandsat imageries. Moreover, t...

Potentiality of Synthetic Aperture Radar (SAR) based Radar Forest Degradation Index (RFDI) combined with field observations for monitoring spatio-temporal dynamics of intertidal mudflat vegeta- tion was assessed in this study. Five vegetation zones were delineated in the Junput mudflat of eastern India with very high classification accuracy (Kappa...

Since the last couple of decades urban areas of developing countries have been experiencing unprecedented growth. However, this growth is not well planned in most of the cities. Even in recent days, there is no significant change in city planning and still, there is a lack of concern regarding environmental issues especially the changing green cove...

The urban watershed of Guwahati situated on the bank of the Brahmaputra River is one of the fastest growing cities of India. During the last two decades, water security concerns due to climatic variabilities have become a pronounced issue in the urban watershed of Guwahati. Thus, the study aims to calculate the long-term temporal trends of temperat...

Analysing historical drought pattern is vital for implementation of efficient drought adaptation and mitigation policies. In this study, we examined the meteorological drought characteristics of India during 1901–2015, using Climate Research Unit (CRU) based Standardized Precipitation Evapotranspiration Index (SPEI) at multiple timescales i.e., 1 m...

Global climate change has imposed immense pressure on water resources and freshwater availability. Along with this, anthropogenic factors, i.e., population expansion, industrialization, and increased cropland and cropping intensity, have significantly increased the consumption of freshwater. The projected change in climate conditions and the total...

With increasing population pressure and anthropogenic activities, water resource has become one of the most critical issues in both developed and developing countries. Understanding the key factors responsible for this global crisis and addressing the issues is essential for our environment as well as the survival of a wide range of species. In thi...

Spatial changes in urban areas are closely associated with the increasing impervious land and thus, monitoring the spatio-temporal changes in impervious area is crucial for identifying urban growth. The capital city of India, Delhi has become one of the most populated cities of the world for its fast-growing economy and infrastructural development....

Monitoring the spatio-temporal variation in soil moisture content (SMC) of the surface soil layer is essential for agriculture and water resource management activities, especially in regions where the socio-economic condition and livelihood depend upon agriculture and allied sectors. In the present study, we have compared different machine learning...

Mudflats are important tropical coastal wetlands having high carbon sequestration and biodiversity potentials. The actual reach of a mudflat environment spreads far beyond its perennial wetland areas in a coastal site. Accurate demarcation of the extent of these buffer areas is imperative for sustainable wetland management. This study tried to deli...

The Bundelkhand region situated in the central part of India has a long history of droughts. Although recurrent drought events in this region are controlled by the climatic variables, its unique soil, and physiography, the adversities associated with this devastating hazard largely depend upon the coping capacity of the local communities. Hence, es...

Reference evapotranspiration (ET0) is the representation of real-time crop-specific measurement of evapotranspiration and could be used for measuring the available water for agriculture. Accurate estimation of reference evapotranspiration (ET0) is required for irrigation management and water resource allocation. Satellite remote sensing provides an...

Climate variability has severe consequences on agricultural productivity. Studies related to drought monitoring using point data has not been widely successful. Remote sensing and GIS has proved to be a better alternative toward fast, accurate, and repetitive appraisal. This study focuses on the application of remote sensing and GIS for monitoring...

Understanding the complex nature of urban dynamics, especially in the fast-growing cities of developing countries, has become crucial to the urban planners and researchers. It is also relevant from the viewpoint of smart city projects as the foundation of successful smart city lies in proper planning and urban growth analysis. In this context, the...

Drought mainly happens due to lack of rain or below normal rainfall in a region, and it causes water shortage for agricultural crops and is associated with other climate‐related factors. This chapter aims to assess the meteorological and agricultural drought risk over the Bundelkhand region (central part) of India, comprising seven districts of Utt...

Drought is a creeping natural hazard commencing from lack of rainfall and generally associated with various climatic aspects. Drought-related water deficiency has severe consequences upon environmental processes and socioeconomic activities. In the past few decades, a number of drought indices have been developed for assessing the extent, onset, du...

The last couple of decades have seen remarkable spatial growth in the urban areas of developing countries. The process of urbanization is directly linked with land transformation which can be an effective way to monitor the spatio-temporal pattern of urban growth. New Delhi, the capital city of India has experienced a large-scale urban growth durin...

Climate change has become a serious concern worldwide owing to its multifaceted impact upon the physical as well as socio-economic environment (IPCC, 2013). Vulnerability to climate change is much higher in the developing countries like India, where the economy is mainly agro-based and productivity from the agricultural sector is dependent upon sum...

Vegetation cover is an important natural resource of the terrestrial ecosystem, and it has significant role in preserving the ecological balance in an area. Analyzing the dynamic pattern of vegetation cover and its trend can be a key to explain any unusual condition of the environment. Bundelkhand, located at the central part of India, has experien...

Big Cities like Mumbai, Kolkata and Delhi, etc., are expanding very fast mainly due to changing socio-economic activities which in turn put pressure on land and natural environment of the cities. Rapid development of cities without proper planning and ecological concern has been a great challenge to the urban planners as well the policy makers to m...

Owing to its impact on global ecosystem, climate change and related effects is being perceived as a serious issue worldwide especially in the arid and semi-arid regions. Climatic variability has been considered as a major cause for degradation of natural resources. Desertification caused by climatic or human-induced processes negatively affects the...

The present study seeks to identify the landuse changes occurring due to haphazard growth of brackish water fisheries along the coastal areas of West Bengal through remote sensing and GIS techniques. High resolution multi-temporal Google Earth images were used for detecting spatio-temporal changes of two blocks of Contai sub-division located in Mid...

The shoreline position is difficult to predict but the trend of erosion or accretion can be determined by geospatial and statistical techniques which may help in reducing the loss of property. The study aims to assess the shoreline changes and prediction in Sagar Island, a delta of the Ganges, situated in West Bengal, India. Shorelines have been de...

The detection and monitoring of drought-related vegetation stress over a large spatial area have become possible with the use of satellite-based remote sensing indices, namely, vegetation condition index (VCI) and temperature condition index (TCI). In particular, the water (precipitation)-related moisture stress during drought may be determined usi...

Soil erosion is a serious environmental issue in many parts of India. As the removal of fertile top soil has direct impact upon productivity of crops, there is a need to assess the potential risk of soil loss and take preventive measures. In order to study this issue, a remarkable number of soil erosion models have come up in the last few decades....

The geospatial techniques have played an important role over the last couple of decades for identifying the land use land cover pattern of an area. Unlike the conventional methods of surveying this technique has become popular for its robustness in data analysis, database management and accuracy. The present study aims to identify the spatial patte...

Desertification is considered as a major worldwide environmental problem mainly caused by the climate changes and human activities during the last decades. Areas affected by desertification processes are gradually losing their level of biological quality and productivity. Among the different indicators of desertification, degradation of vegetation...

In order to quantify and monitor the spatio-temporal growth of urban areas, remote sensing data and GIS techniques are getting attention for its unparallel utility by the city planners as well as decision makers. The present study aims to analyse the rapid increase of built-up area in Dehradun city, the capital of Uttarakhand, India. The study uses...

Several drought indices have been developed during the past decades for monitoring the onset, duration and intensity of drought in different agro-climatic regions. The present study attempts to monitor drought in two underprivileged districts, i.e., Mewat of Haryana and Dhar of Madhya Pradesh state of India, using the remote-sensing-derived Vegetat...

The present study focuses on the long term trends of meteorological parameters like precipitation, temperature, solar radiation, wind direction etc. of Udaipur district, Rajasthan which is mainly located in semi-arid zone in India. Meteorological parameters have been taken for this study to find out the annual variability using Mann-Kendall test an...

Owing to its severe effect on productivity of rain-fed crops and indirect effect on employment as well as per capita income, agricultural drought has become a prime concern worldwide. The occurrence of drought is mainly a climatic phenomenon which cannot be eliminated. However, its effects can be reduced if actual spatio-temporal information relate...

The ongoing environmental changes as well as in situ statistics have been adopted for the present study. An environmental change is a slow& gradual process and is hard to identify without long term historical data. The Landsat TM/ETM+ data along with historical crop acreage statistics was used to monitor the spatio-temporal changes in soil salinity...

Rajasthan is an agrarian state and agricultural sector shares about 22.5 percent of the state’s economy. As the Eastern part of Rajasthan receives more rainfall and drained by a number of rivers and their tributaries, it has been favourable for agriculture. But agricultural production of Eastern Rajasthan is being severely affected during drought y...

In the present study, prediction of agricultural drought has been addressed through prediction of agricultural yield using a model based on NDVI-SPI. It has been observed that the meteorological drought index SPI with different timescale is correlated with NDVI at different lag. Also NDVI of current fortnight is correlated with NDVI of previous lag...

With increase in the number of natural hazards and disasters followed by economic losses, terms like disaster preparedness, response, relief and rehabilitation has become common to the decision makers as well as ordinary people. Since there is a great influence of occurrence of hazards and disaster upon a country’s economic growth, all government b...

The threat of global climate change has radically increased the attention directed towards understanding the effect on environment and its natural and human induced changes. Climatic conditions along with certain human activities such as improper agricultural practices, violent use of fertilizers, overgrazing and other unsustainable practices have...

The present study attempts to observe its performance in predicting agricultural yield in both normal year and drought stress year. The agricultural yield of eastern Rajasthan varies significantly with years due to frequent occurrence of drought. Long term (1961-2003) yield data of three major kharif crops of eastern Rajasthan have been used in the...