Prof. RAAJ Ramsankaran
Professor - IITB
Department of Civil Engineering
Indian Institute of Technology Bombay
Powai, Mumbai-400076
Maharashtra, India.
Hydro-Remote Sensing Applications Group
Department of Civil Engineering - IITB
Conferences Abstracts(Poster and Oral Presentations)
  • 51 Antara Dasgupta, Stefania Grimaldi, Raaj Ramsankaran, Valentijn Pauwels, and Jeffrey Walker. (2023) Showcasing the Potential of Crowd-sourced Observations for Flood Model Calibration. EGU Meeting 2023 (Abstract ID: EGU23-2029).
  • 50 Visweshwaran, R., RAAJ Ramsankaran, and Eldho, T.I. (2023) Improving Streamflow Estimates using an Efficient Time Variant Multivariate Assimilation of Soil Moisture and Streamflow Observations. EGU Meeting 2023 (Abstract ID: EGU23-937).
  • 49 RAAJ Ramsankaran (2022) High Resolution Snow Depth Estimations in Himalayan -Karakoram Region using Remote Sensing: Challenges and Way Forward. In UNESCO sponsored conference on Cryosphere and related Hazards in High Mountain Asia in a Changing Climate, Almaty, Kazakhstan, Oct 31- Nov 04.
  • 48 Ashish Kumar, RAAJ Ramsankaran and Francisco Munoz Arriola (2021) Assessment of Soil Moisture Driven Machine Learning Approach to Correct Satellite based Near Real Time Rainfall Estimates: A Case Study in Hirakud Catchment, Mahanadi Basin. In Hydro International Conference, Surat, India, Dec 23-25.
  • 47 R Visweshwaran, RAAJ Ramsankaran, T.I. Eldho and Sivaramakrishan Lakshmivarahan (2021) Dynamic Data Assimilation for Improved Streamflow Forecast Using Sensitive Soil Moisture Observations. In American Geophysical Union Fall Meeting, New Orleans, USA, Dec 13-17.
  • 46Antara Dasgupta, Renaud Hostache, RAAJ Ramsankaran, Valentijn Pauwels, Guy Jean-Pierre Schumann, Stefania Grimaldi and Jeffrey Phillip Walker (2021). Impact of observation spatiotemporal configuration on flood extent assimilation. In Virtual Australian Earth Sciences Convention: Core to Cosmos. Feb 9-12.
  • 45Antara Dasgupta, Renaud Hostache, RAAJ Ramsankaran, Valentijn Pauwels, Guy Jean-Pierre Schumann, Stefania Grimaldi and Jeffrey Phillip Walker (2020). Quantifying the Impact of Observation Operators on Flood Inundation Forecast Quality. In American Geophysical Union Fall Meeting: Shaping the Future of Science, Dec 7-11.
  • 44Antara Dasgupta, Renaud Hostache, RAAJ Ramsankaran, Valentijn Pauwels, Guy Jean-Pierre Schumann, Stefania Grimaldi and Jeffrey Phillip Walker (2020). Leveraging Earth Observation Data Assimilation for Improved Flood Inundation Forecasts. In 2020 Bureau of Meteorology Annual Research and Development Workshop, Nov 23-28.
  • 43Antara Dasgupta, Renaud Hostache, RAAJ Ramsankaran, Valentijn Pauwels, Guy Jean-Pierre Schumann, Stefania Grimaldi and Jeffrey Phillip Walker (2020). Harnessing the Potential of EO Data Assimilation for Improved Flood Inundation Forecasts. In Earth Observation for Water Cycle Science Conference 2020, Nov, 16-18.
  • 42RAAJ Ramsankaran and P.J. Navinkumar (2020). Mapping surface features of Debris- covered Glaciers in Indian Himalayas using UAV Imagery. International Conference on Himalayan Cryosphere, Bengaluru, India. October 19 -23.
  • 41Antara Dasgupta, Renaud Hostache, RAAJ Ramsankaran, Valentijn Pauwels, Guy Jean-Pierre Schumann, Stefania Grimaldi and Jeffrey Phillip Walker (2020). Optimizing SAR-based Flood Extent Assimilation for Improved Flood Inundation Forecasts. In European Geosciences Union: Sharing Geosciences Online, May 4-8.
  • 40Ashish Kumar and RAAJ Ramsankaran (2020) A detailed investigation of errors in satellite-based real-time rainfall estimates: a pilot study across the Krishna river basin. Roorkee Water Conclave-2020, IIT Roorkee. Feb 26-28.
  • 39Swathy Sunder, RAAJ Ramsankaran, Balaji Ramakrishnan (2020). " Reconstruction of Daily Cloud Free MODIS Sea Surface Temperature over South Eastern Arabian Sea". AGU Ocean Sciences Meeting, San Diego, CA, USA. February 16 -21.
  • 38Antara Dasgupta, Renaud Hostache, RAAJ Ramsankaran, Valentijn Pauwels, Guy Jean-Pierre Schumann, Stefania Grimaldi and Jeffrey Phillip Walker (2019). Optimizing Targeted SAR Acquisitions for Flood Extent Assimilation to Improve Inundation Forecasts. In American Geophysical Union Fall Meeting, San Francisco, USA, Dec 9-13.
  • 37Antara Dasgupta, Renaud Hostache, RAAJ Ramsankaran, Valentijn Pauwels, Guy Jean-Pierre Schumann, Stefania Grimaldi and Jeffrey Phillip Walker (2019). Evaluating the Impact of Flood Extent Assimilation on Hydraulic Model Forecast Skill. In MODSIM2019, 23rd International Congress on Modelling and Simulation, Canberra, Australia, Dec 1-6.
  • 36Antara Dasgupta, Renaud Hostache, RAAJ Ramsankaran, Valentijn Pauwels, Guy Jean-Pierre Schumann, Stefania Grimaldi and Jeffrey Phillip Walker (2019). On the impacts of location, timing, and frequency of inundation extent assimilation on flood forecast skill. In Hydrologic Ensemble Prediction EXperiment (HEPEX), Reading, UK, Nov 25-28.
  • 35 Smarika Kulshreshtha and RAAJ Ramsankaran(2019). Spatiotemporal analysis of snow cover variation over Western Himalayan basins using improved MODIS snow cover area maps. International Workshop on Climate Change and Extreme Events in the Himalayan Region (C2E2 Himalaya) , IIT Mandi, H.P., India. April 18–20.
  • 34 Antara Dasgupta, RenaudHostache, RAAJ Ramsankaran, Valentijn Pauwels, Guy Jean-Pierre Schumann, Stefania Grimaldi and Jeffrey Phillip Walker (2019). Improving flood forecasts using SAR-based flood extent assimilation. European Geosciences Union General Assembly , Vienna, Austria. April 7–12.
  • 33 Pratiksha Jain, RAAJ Ramsankaran and Antara Dasgupta (2018). GIS based multi-criteria modelling framework for identifying critical areas aimed at watershed management. American Geophysical Union Fall Meeting , Washington D.C., USA. December 10–14.
  • 32 Anita Chandrasekharan and RAAJ Ramsankaran(2018). Role of glacio-morphological factors on glacier mass balance variation: a case study of glaciers in Chandra Basin, Western Himalayas, India. American Geophysical Union Fall Meeting , Washington D.C., USA. December 10–14.
  • 31 RAAJ Ramsankaran and Amol Ashok Patil(2018). Synergetic correction of satellite-based rainfall and soil moisture for improving streamflow simulations. American Geophysical Union Fall Meeting , Washington D.C., USA. December 10–14.
  • 30 Antara Dasgupta, Stefania Grimaldi, RAAJ Ramsankaran, RenaudHostache, Guy Jean-Pierre Schumann, Valentijn Pauwels and Jeffrey Phillip Walker(2018). On the spatiotemporal impacts of flood extent assimilation.American Geophysical Union Fall Meeting , Washington D.C., USA. December 10–14.
  • 29 Smarika Kulshrestha, Anita Chandrasekharan and RAAJ Ramsankaran(2018). Improving MODIS snow cover product’s accuracy over Western Himalayas using MODIS LST data. American Geophysical Union , Washington D. C., USA. December 10–14.
  • 28 Estifanos Lemma and RAAJ Ramsankaran and F.M. Arriola (2018). Use of MSWEPv2 rainfall product for meteorological drought monitoring across different rainfall regimes of Ethiopia. American Geospatial Union Fall meeting , Washington D.C., USA. December 10–14.
  • 27 Anisha Narendran and RAAJ Ramsankaran(2017). Glacier mapping using multi-sensor satellite data through knowledge based hierarchical classification approach.American Geophysical Union Fall Meeting , Washington D. C., USA. December 10–14.
  • 26 Estifanos Lemma and RAAJ Ramsankaran(2018). Evaluation of Multi-Source Weighted-Ensemble Precipitation (MSWEP) product across different rainfall regimes of Ethiopia.9th Workshop of International Precipitation Working Group (IPWG-9) , Seoul, South Korea. November 5–9.
  • 25 Vasu Sathyakumar, RAAJ Ramsankaran and RonitaBardhan(2018). Relationship between remotely sensed distribution patterns of Urban Green Spaces (UGS) and neighbourhood Socio-Economic Status (SES) in Mumbai, India. 5th EARSeL Joint Workshop Urban Remote Sensing- Challenges & Solutions , Ruhr University Bochum, Germany. September 24–27.
  • 24 Swathy Sunder, RAAJ Ramsankaran and Balaji Ramakrishnan(2018). Exploring machine learning techniques to estimate cloud free daily Sea Surface Temperatures (SST) from MODIS aqua across South Eastern Arabian Sea. Group on High Resolution Sea Surface Temperature (GHRSST). 19th International Science Team Meeting (GHRSST XIX), Darmstadt, Germany. June 4–8.
  • 23 Antara Dasgupta, Renaud Hostache, RAAJ Ramsankaran, Valentijn Pauwels, Guy Jean-Pierre Schumann, MarcoChini, Stefania Grimaldi, PatrickMatgen and Jeffrey Phillip Walker(2018). Evolutionary assimilation of SAR-derived inundation extents into a flood model. European Geosciences Union General Assembly .Vienna, Austria. April 23–28.
  • 22 Amol Ashok Patil, RAAJ Ramsankaran(2018). Improved ensemble representation of soil moisture in SWAT for data assimilation applications. SWAT International Conference, IIT Madras, Chennai, India. January 8–12.
  • 21 Antara Dasgupta, Guy Jean-Pierre Schumann, Stefania Grimaldi, RAAJ Ramsankaran, Valentijn Pauwels and Jeffrey Phillip Walker(2018). Diagnostic Assessment of Localized Flood Flow Behaviour. Hydrologic Ensemble Prediction EXperiment (HEPEX), Melbourne, Australia. February 6–8.
  • 20 Sangita Kumari, RAAJ Ramsankaran and Ankur Pandit(2017). Geodetic mass balance modelling of ChhotaShigriglacier using the bias corrected SRTM and TanDEM-X DEMs. The 2nd National Conference on Polar Sciences (NCPS 2017), Goa, India. May 16–17.
  • 19 Shruti Upadhyaya, RAAJ Ramsankaran (2017). Improved TMPA 3B42 estimates across Indian land region using static topographic and climate region information. European Geoscience Union General Assembly, Vienna, Austria. April 23–28.
  • 18 Anita Chandrasekharan and RAAJ Ramsankaran(2017).Remote sensing-based modelling of annual surface mass balances of ChhotaShigiri Glacier, Western Himalayas, India. European Geoscience Union General Assembly, Vienna, Austria. April 23–28.
  • 17 Ankur Pandit, RAAJ Ramsankaran and Sangita Singh (2017). Modelling the glacier ice thickness change between 2000–2013 using bias corrected DEM differencing method for 18 glaciers in Chandra Bhaga Basin, Western Himalayas, India. Cryosphere in a Changing Climate, Wellington, New Zealand. February 12–17.
  • 16 Smarika Kulshreshtha and RAAJ Ramsankaran(2017). Snowmelt Runoff Simulation considering temporal lapse rate for Spiti Basin in Western Himalayas. National Conference on Himalayan Cryosphere, Divecha Centre for Climate Change, IISC Bangalore, India. January 23–24.
  • 15 Amol Patil and RAAJ Ramsankaran (2016). Improving subsurface error correlation in SWAT for EnKF based soil moisture data assimilation. American Geophysical Union Fall Meeting, San Francisco, USA. December 17–19.
  • 14 Shruti Upadhyaya, RAAJ Ramsankaran and Amol Patil. (2016). Error modeling of the modified INSAT multi-spectral rainfall algorithm. American Geophysical Union Fall Meeting, San Francisco, USA. December 17–19.
  • 13 Ankur Pandit,RAAJ Ramsankaran (2016). Utilization and evaluation RISAT-1 backscattering response for glacier zone mapping over Hamtah glacier, Western Himalaya, India. Symposium on Thin Ice: Arctic, Antarctic and the Himalayas, JNU, New Delhi, India. November 29.
  • 12 Shruti Upadhyaya, RAAJ Ramsankaran(2016). Modified-INSAT multispectral rainfall algorithm (M-IMSRA) for Indian land region. 8th International Precipitation Working Group Meet (IPWG7), Bologna, Italy. October 3–7.
  • 11 Ashish Kumar and RAAJ Ramsankaran (2016). Error Characterization of TMPA-RT V7 Estimates over Krishna River Basin in India. 8th International Precipitation Working Group Meet (IPWG7), Bologna, Italy. October 3–7.
  • 10 Amol Patil and RAAJ Ramsankaran (2015). Comparison of different sampling methods for representing uncertainty in soil moisture data assimilation using EnKF. Earth Observation for Water Cycle Science 2015. European Space Agency (ESA), ESRIN, Rome, Italy. October 20–23.
  • 9 Ashish Kumar and RAAJ Ramsankaran (2015). Error reduction of satellite-based rainfall estimates-a case study of an Indian Basin. Earth Observation for Water Cycle Science 2015. European Space Agency (ESA), ESRIN, Rome, Italy. October 20–23.
  • 8 Pratiksha Jain and RAAJ Ramsankaran (2015). GIS based distributed process-oriented soil erosion modeling using modified Morgan–Morgan Finney model in Indian Region. SWAT International Conference, Sardinia, Italy. June 22–26.
  • 7 RAAJ Ramsankaran, Ankur Pandit and Divyansh (2015). Utilization of ELA for mass balance estimations in ChottaSighriglacier, Himachal Pradesh, India. International Glaciology Society (IGS) International Symposium on Glaciology in High-Mountain Asia. Kathmandu, Nepal. March 2–6.
  • 6 Pratiksha Jain and RAAJ Ramsankaran (2014). GIS based distributed soil erosion modeling using modified Morgan–Morgan Finney model in Gharwal Himalayan Region. International Conference on Modeling Tools for Sustainable Water Resource Management, IIT Hyderabad, India. December 26–29.
  • 5 Shruti Upadhyaya, RAAJ Ramsankaran (2014). Validation of near-real time satellite rainfall products and assessment of its bias over different homogeneous regions of India based on topographical analysis. 7th International Precipitation Working Group Meet (IPWG7), Japan. November 11–17.
  • 4 RAAJ Ramsankaran, and Sravan Chinthaparthi (2013). Recognizing Biological Crusts in Civil Engineering Structures using Intensity Data from Terrestrial Laser Scanner. International Conferences on Advances in Building Sciences & Rehabilitation and Restoration of Structures, IIT Madras, Chennai. February 13-16.
  • 3 RAAJ Ramsankaran and U.C. Kothyari(2012). GIS based GIS based distributed modelling of soil erosion and sediment yield for isolated storm events - a validation study of DREAM. SWAT International Conference, IIT Delhi, New Delhi, India. July 18–22.
  • 2 RAAJ Ramsankaran, M. Ramalingam, S.K. Ghosh, U.C. Kothyari(2006). Remote sensing and GIS applications for wetland management - a case study. 1st Indo-Australian International Conference on Information Technology in Civil Engineering (IAC-ITCE), IIT Roorkee, Roorkee, India. February 22–24.
  • 1 RAAJ Ramsankaran(2004). Soil information system & its applications for watershed management. National Symposium on Futuristic Steel Developments & GIS for Water Resource & Environmental Engineering, Karunya Institute of Technology, Coimbatore, India. December 16–17.