Surendra Rauniyar

Research Scientist

Current work and responsibilities

Surendra Rauniyar works in the Radar Science and Nowcasting team to improve and integrate a robust near-real time calibration and monitoring technique for BoM operational radars network. The technique will identify the radars providing un-corrected reflectivities in near-real time and correct them accordingly using information from GPM satellite and ground clutter.

He is also analyzing the 27th November 2014 Brisbane hailstorm case to understand how the early warning and post-event mitigation activities can be improved using near real-time dual-polarization and dual-Doppler radar data.

He is involved in characterizing the bulk microphysical properties of graupel in the tropical convective cores (TCC) using the time series and full vertical profile of the Darwin and Cayenne HIWC/HAIC Field experiments. His reasearch also includes the composite analysis of TCC locations using satellite data, mainly NASA GRIP GOES-13 Overshooting Top (OT) and Rapidly Developing Thunderstorm (RDT) products to identify the preferential regions of HIWC.

Career background

  • 1998: Tribhuvan University (Nepal), B.E. (Civil Engineering)
  • 2006: University of Tokyo Japan), M.E. (Civil/Water Engineering)
  • 2015: University of Melbourne (Australia), PhD (Atmospheric Sciences),
Professional positions
  • 1998–2007: Civil Engineer/Hydrologist/Lecturer in Nepal
  • 2007–2008: Senior Manager, Water Resources Engineering, Intercontinental Consultants & Technocrats Pvt. Ltd, India
  • 2008–2012: Tutor/demonstrator, University of Melbourne and RMIT University, Melbourne
  • 2012–2014: Climate Scientist, Climate Variability & Change, R&D, Bureau of Meteorology, Melbourne, Australia
  • 2015–present: Research Scientist, Radar Science and Nowcasting, R&D, Bureau of Meteorology, Melbourne, Australia

Selected publications

  • Rauniyar, S. P., A. Protat, H. Kanamori (2017): Uncertainties in TRMM-Era multisatellite-based tropical rainfall estimates over the Maritime Continent, Earth and Space Science, 4, doi:10.1002/2017EA000279.
  • Kumar, V. V., A. Protat, C. Jackob, C. Williams, S. Rauniyar, G. Stephens, and P. May (2016): The estimation of convective mass flux from radar reflectivities. J. Appl. Meteor. Clim., 55, 1239-1257
  • Rauniyar, S. P., and K. E. Walsh (2015): Spatial and temporal variations in rainfall over Darwin and its vicinity during different large-scale environments. Clim. Dyn., 46: 671. doi:10.1007/s00382-015-2606-1
  • Protat, A., S. Rauniyar, V. V. Kumar, and J. W. Strapp (2014): Optimizing the Probability of Flying in High Ice Water Content Conditions in the Tropics Using a Regional-Scale Climatology of Convective Cell Properties. J. Appl. Meteor. Clim., 53, 2438-2456.
  • Rauniyar, S. P., and K. E. Walsh (2013): Influence of ENSO on the Diurnal Cycle of Rainfall over the Maritime Continent and Australia. J. Clim., 26, 1304-1321
  • Rauniyar, S. P., and K. E. Walsh (2011): Scale Interaction of the Diurnal Cycle of Rainfall over the Maritime Continent and Australia: Influence of the MJO. J. Clim., 24, 325-348.

Surendra Rauniyar

  • Radar and Satellite Meteorology
  • Statistical Downscaling
  • Forecast Verification
  • Scale-interactions of Rainfall/Convection
  • Hydro-meteorology and Flood Modeling
- Google Scholar page
- ResearchGate page
- Full CV
  • UM Partnership MC PEG
  • Skill, Knowledge & Innovation (SKI), NRNA