My Projects
2019 Bihar flood inundation mapping of Samastipur district
As a part of a certification course, I attempted to map the extent of inundation due to flooding and the Land Use and Land Cover classes most affected due to the same, in the month of July 2019 in the district of Bihar. Primarily using Sentinel-1 SAR data for the months of May & July 2019, the inundation extent was obtained by setting up threshold values on the difference obtained in the two months. The obtained result was further refined to remove perennial water bodies and to take areas with lower slopes into consideration. Further, I have attempted to understand which LULC classes were most likely to be affected due to the floods. The LULC classification done by using Landsat imagery for months of May (before floods) and November (after floods), and then the area under each class was calculated and compared for both months, so as to remove bias that may arise due to seasonal differences. The mapping was done using a combination of Google Earth Engine and ArcMap 10.5.
Publications
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SUSTAINABLE SOLID WASTE MANAGEMENT (September 2022)
Maharana, I. 2022. Sustainable Solid Waste Management. In Jha, K.K. & Campbell, M. (Eds.), Dynamics and Interrelations Between Nature, Science and Society, 397 - 418. New York, NY: Nova Science Publishers. -
URBAN BIOGEOCHEMISTRY AND DEVELOPMENT: THE BIOGEOCHEMISTRY OF LINEAR INFRASTRUCTURE (December 2023)
Khan, A. & Maharana, I. Urban Biogeochemistry and Development: The Biogeochemistry of Linear Infrastructure. In Campbell, M. (Ed.) Biogeochemistry and the Environment. Amsterdam: Springer Nature. Forthcoming for 2024.
North India Floods (July 2023): Yamuna Swells and Floods Delhi
Delhi and several North Indian states are facing moderate to severe flooding, due to incessant rains. The states most affected are Punjab, Himachal Pradesh, Uttarakhand and Haryana. Jammu & Kashmir and Ladakh are also facing rains, atypical of the season. Here I made an attempt to map the extent of flooding in Delhi, in the month of July, using Sentinel 1 SAR imagery, in Google Earth Engine. It shows that quite a significant area is flooded due to the swelling of Yamuna river. The areas highlighted in blue in the third image, show the areas that are facing flooding issues.
India and its People
This ArcGIS storyMap is a simple visual attempt at showing how the population of India is distributed across the country, and what factors may influence this distribution. Two major factors- proximity to perennial water source (an important resource for survival) and altitude, have been considered. The map was created on ArcGIS online, as a part of GIS, Mapping, and Spatial Analysis specialization course.
Land Use and Land Cover Change Analysis and Site Suitability of Water Harvesting Structures in NAFCC Project Area, Nuapada
As a part of my Masters' thesis, I worked on a NAFCC funded project in Nuapada, Odisha. I did LULC change analysis to obtain the change in LULC statistics of the region before and after the implementation of the project. Following this, I used thematic layers of geomorphology, stream order, ground water potential, slope, settlement, lineament and soil texture, and carried out suitability site analysis for different water harvesting structures (check dams, nala bunds, percolation tanks and recharge pits) using Analytical Hierarchy Process (AHP), in ArcMap 10.5.
