Analysis of Urbanization in Delhi, India from 1990 to 2023 using Landsat images

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dc.contributor.advisorSzabo , Lorand
dc.contributor.authorAnsari, Adeeba Arshad
dc.contributor.departmentDE--Természettudományi és Technológiai Kar--Földtudományi Intézet
dc.date.accessioned2024-06-05T06:38:27Z
dc.date.available2024-06-05T06:38:27Z
dc.date.created2024-05-02
dc.description.abstractThe study used Landsat satellite imagery and remote sensing techniques to assess changes in the built-up and vegetation-covered regions of Delhi throughout the period of 1990 to 2023. The NDVI and BU indices which are often employed in remote sensing research to evaluate built-up area and vegetation density formed the basis of the analysis. The BU and NDVI indices temporal and geographical variations throughout the span of 1990 to 2023 in the districts of Delhi. The study clarifies how Delhi's urban environment is evolving and how this is affecting the amount of vegetation cover by examining Landsat imagery from satellites and using indicators like BU and NDVI. The results show variations in the built-up area and the loss of vegetation, especially during years of rapid urban growth. Different patterns of urban expansion and vegetation distribution are shown by district-level study, highlighting the intricate relationship between environmental changes and urban development. For many districts in Delhi, the NDVI and BU values were analysed as part of the project to monitor changes in the built-up area and vegetation cover from 1990 to 2023. The NDVI research revealed that the city's vegetation did not remain constant during the study, instead it showed a decreasing and growing tendency. This suggests that some elements within the city are likely to have an impact on the vegetation. and after that, the BU values are displayed, which further illustrates the trend's changes over time. Considering the findings, we draw the conclusion that these two have an inverse relationship. Additionally, we analyse the data using the zonal statistics of Delhi's districts to show that, while the city’s-built area decreased steadily in New Delhi between 1990 and 2023, the vegetation index increased steadily during the same period, supporting the conclusion that there is an inverse relationship between the two indices. After putting everything together, I can say that this study offers comprehensive details about the Delhi LULC pattern spanning all districts from 1990 to 2023. However, the best results can only be obtained from field study, such as surveys, as the indices approach is insufficient to get comprehensive information on Delhi's urbanization, and linking the two data values afterwards is necessary. Beyond just the built environment and flora, the examination of urbanization includes the water and the various rules that govern it. Consequently, all these evaluations will be carried out utilizing this study in future research projects. In the field of geoinformation research, spectral indices have also shown to be a helpful resource.
dc.description.courseGeography
dc.description.degreeMSc/MA
dc.format.extent49
dc.identifier.urihttps://hdl.handle.net/2437/370935
dc.language.isoen
dc.rights.accessHozzáférhető a 2022 decemberi felsőoktatási törvénymódosítás értelmében.
dc.subjecturbanization, remote sensing and Geoinformatics
dc.subject.dspaceEarth Sciences
dc.titleAnalysis of Urbanization in Delhi, India from 1990 to 2023 using Landsat images
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