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Dr Thota Sivasankar
- Assistant Professor, Geographic Information Systems
Dr Thota Sivasankar is an Assistant Professor of Geographic Information Systems (GIS) at NIIT University (NU). He has eight years of experience in research and academia.
His current research is on the use of microwave remote sensing, particularly Synthetic Aperture Radar (SAR) data, for natural resource management and disaster management applications.
Prior to joining NU, Dr Sivasankar worked as a research scientist at the North-Eastern Region node for Disaster Risk Reduction (NER-DRR) of the North Eastern Space Applications Centre (NESAC), Department of Space, Umiam (Shillong), for three years. He did his doctorate in Microwave Remote Sensing from the Indian Institute of Technology (Indian School of Mines), Dhanbad, while working at the Indian Institute of Remote Sensing, ISRO.
Dr Sivasankar has to his credit several peer-reviewed research publications in various national and international journals.
Qualifications
- PhD (Microwave Remote Sensing)
- MTech (Remote Sensing)
- BTech (Electronics and Communication Engineering)
Experience
- Teaching: 2 years
- Research: 6 years
Courses taught
- Basic and Advanced Courses of Remote Sensing
- GIS Programming
Research areas
- Remote Sensing for Natural Resource Management and Disaster Monitoring
Consulting areas
- Crop Classification
- Flood Mapping and Monitoring
Selected publications
- S. Ghosh, T. Sivasankar, and G. Anand, “Performance evaluation of multi-parametric Synthetic Aperture Radar Data for geological lineament extraction,” Int. J. Remote Sens., vol. 42, no. 7, pp. 2574–2593, Dec. 2020, doi: 10.1080/01431161.2020.1856963.
- T. Sivasankar, S. Ghosh, and M. Joshi, “Exploitation of optical and SAR amplitude imagery for landslide identification: A case study from Sikkim, Northeast India,” Environ. Monit. Assess., vol. 193, no. 7, Jun. 2021, doi: 10.1007/s10661-021-09119-6.
- T. Sivasankar, D. Kumar, H. Shanker Srivastava, and P. Patel, “Wheat Leaf area index retrieval using RISAT-1 hybrid polarized SAR data,” Geocarto Int., vol. 35, no. 8, pp. 905–915, Feb. 2019, doi: 10.1080/10106049.2019.1566404.
- T. Sivasankar, J. M. Lone, S. K. K., A. Qadir, and R. P. L. N., “Estimation of above ground biomass using support vector machines and ALOS/Palsar Data,” Vietnam J. Earth Sci., vol. 41, no. 2, pp. 95–104, Mar. 2019, doi: 10.15625/0866-7187/41/2/13690.
- S. B. Borah, T. Sivasankar, M. N. Ramya and P. L. Raju, “Flood inundation mapping and monitoring in Kaziranga National Park, Assam using sentinel-1 sar data,” Environ. Monit. Assess., vol. 190, no. 9, Aug. 2018, doi: 10.1007/s10661-018-6893-y.
Publications
Research Papers
- S. K. Kaushik, V. N. Mishra, M. Punia, P. Diwate, T. Sivasankar and A. K. Soni, “Crop health assessment using sentinel-1 SAR time series data in a part of Central India,” Remote Sens. Earth Sys. Sci., Jan. 2022, doi: 10.1007/s41976-021-00064-z.
- P. K. Sharma, P. Kumar, H. S. Srivastava, and T. Sivasankar, “Assessing the potentials of multi-temporal sentinel-1 SAR data for paddy yield forecasting using artificial neural network,” J. Indian Soc. Remote. Sens., Feb. 2022, doi: 10.1007/s12524-022-01499-7.
- S. Ghosh, T. Sivasankar and G. Anand, “Performance evaluation of multi-parametric Synthetic Aperture Radar Data for geological lineament extraction,” Int. J. Remote Sens., vol. 42, no. 7, pp. 2574–2593, Dec. 2020, doi: 10.1080/01431161.2020.1856963.
- T. Sivasankar, S. Ghosh and M. Joshi, “Exploitation of optical and SAR amplitude imagery for landslide identification: A case study from Sikkim, Northeast India,” Environ. Monit. Assess., vol. 193, no. 7, Jun. 2021, doi: 10.1007/s10661-021-09119-6.
- T. Sivasankar, S. B. Borah, R. Das, and P. L. Raju, “An investigation on sudden change in water quality of Brahmaputra River using remote sensing and GIS,” Natl. Acad. Sci. Lett., vol. 43, no. 7, pp. 619–623, Feb. 2020, doi: 10.1007/s40009-020-00938-8.
- P.K. Sharma, D. Kumar, H. S. Srivastava, P. Patel and T. Sivasankar, “Soil moisture retrieval under wheat crop using RISAT-1 hybrid polarimetric SAR Data,” J. Agrometeorol., vol. 21, no. 1, pp. 58–62, Mar. 2019, doi: 10.54386/jam.v21i1.206.
- T. Sivasankar, J. M. Lone, S. K. K., A. Qadir and R. P. L. N., “Estimation of above ground biomass using support vector machines and ALOS/Palsar Data,” Vietnam J. Earth Sci., vol. 41, no. 2, pp. 95–104, Mar. 2019, doi: 10.15625/0866-7187/41/2/13690.
- S. B. Borah, T. Sivasankar, M. N. Ramya and P. L. Raju, “Flood inundation mapping and monitoring in Kaziranga National Park, Assam using sentinel-1 sar data,” Environ. Monit. Assess., vol. 190, no. 9, Aug. 2018, doi: 10.1007/s10661-018-6893-y.
- T. Sivasankar, D. Kumar, H. S. Srivastava, and P. Patel, “Advances in radar remote sensing of Agricultural Crops: A Review,” Int. J. Adv. Sci. Eng. Inf. Technol., vol. 8, no. 4, pp. 1126, Jul. 2018, doi: 10.18517/ijaseit.8.4.5797.
- T. Sivasankar, J. M. Lone, K.K. Sarma, A. Qadir, and P.L.N. Raju, “The potential of multi-frequency multipolarized Alos-2/palsar-2 and sentinel-1 SAR data for aboveground forest biomass estimation,” Int. J. Eng. Technol., vol. 10, no. 3, pp. 797–802, Jun. 2018, doi: 10.21817/ijet/2018/v10i3/181003095.
- J. M. Lone, T. Sivasankar, K. K. Sarma, A. Qadir, and P .L. N. Raju, “Influence of slope aspect on above ground biomass estimation using ALOS-2 Data,” Int. J. Sci. Res., vol. 6, no. 6, pp. 1422–1428, Jun. 2017, doi: 10.21275/art20174506.
Book Chapters
- M. N. S. Ramya, T. Sivasankar, S. Ghosh, and G. Venkata Rao, “A Remote Sensing and GIS Approach Toward the Analysis of Patel Milmet Dam Burst, Kenya,” in Recent Technologies for Disaster Management and Risk Reduction, P. K. Rai, P. Singh, and V. N. Mishra Eds., Germany: Springer, 2021, pp. 265-274.
- A. Sharma and T. Sivasankar, “A Review of Tropical Cyclone Disaster Management Using Geospatial Technologies in India,” in Recent Technologies for Disaster Management and Risk Reduction, P. K. Rai, P. Singh and V. N. Mishra, Eds., Germany: Springer, 2021, pp. 159-171.