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Indian Institute of Technology Bhubaneswar
Indian Institute of Technology Bhubaneswar

Dr. Sourav Sil Associate Professor
School of Earth, Ocean and Climate Sciences

Research Interests

Physical Oceanography; HF Radar Current; Argo; Ocean Circulation Modeling

Contact Details

  • 118, School of Earth, Ocean and Climate Sciences, IIT Bhubaneswar
  • 06747135520
  • souravsil@iitbbs.ac.in

Other Profile Link(s)

Education

 Degree Discipline Year School
 Ph. D. Oceanography 2012 IIT Kharagpur
 M. Sc. Physics 2007 Vidyasagar University, West Bengal
 B. Sc. Physics (Hons) 2005 Midnapore College, West Bengal
 

Biosketch

 

Teaching

Autumn:
 
B.Tech.: Introduction to Ocean Dynamics (CL3L001),
M.Sc./M.Tech: Dynamics of Atmosphere and Ocean (CL6L102), Modelling of Dynamical Processes of Ocean and Atmosphere (CL5L106), Computional Geosciences Theory and Lab (ES5L105), Understanding Earth System (ES5L101)
 
 
Spring:
 
M.Sc./M.Tech: Simulation of Atmospheric and Oceanic Processes (CL6L201), Ocean State Forecasting (CL5L203), Numerical Simulation Laboratory – Oceanic Processes (CL5P203), Advance Dynamic Oceanography (CL6L113)

Projects

Sponsored Projects as Principal Investigator (PI)

Ongoing: 

Sl No

Title

Sponsor

Budget

Duration

6

Subsurface  variability  of  the  Bay  of  Bengal  from observations and models: relationship with Indian Monsoon and Cyclogenesis

SERB, New Delhi

 

22.0 Lakh

Feb 2020 to Feb 2023 

Completed: 

Sl No

Title

Sponsor

Budget

Duration

5

Quality Control of HF Radar Surface Currents for the investigation of sub-mesoscale Coastal Process and its use for assimilation in the INCOIS Model

 

INCOIS, Hyderabad (MoES)

16.5 Lakh

Mar 2019 to Mar 2021

 

4

Numerical Simulation of Sub-Mesoscale Features along Odisha Coast using SCATSAT Winds

 

SAC, Ahmedabad, ISRO

30 Lakh

Apr 2017 to Mar 2020

3

Simulation of Coastal Processes on the North West Bay of Bengal 

   

 

 SERB, New Delhi

43 Lakh

June 2015 to May 2018

2

Multi-scale Analysis of Circulation and variability in the north western Bay of Bengal using HF Radar observations

INCOIS, Hyderabad (MoES)

27 Lakh

 

Apr 2015 to Oct 2017

1

Mesoscale Eddies in the Western Bay of Bengal

IIT Bhubaneswar 

10 Lakh

Oct 2014 to Oct 2016

 

Recent Publications (International Journals)

1Dey, S., Sil, S., 2023. Spatio-temporal variability of coastal upwelling using high resolution remote sensing observations in the Bay of Bengal. Estuar. Coast. Shelf Sci. 108228. https://doi.org/10.1016/j.ecss.2023.108228
2Shee, A., & Sil, S. (2023) Estimations of vertical diffusivity and applications on a mixed layer budget analysis of the Bay of Bengal using Argo data. Journal of Marine Systems, 239, 103857. https://doi.org/10.1016/j.jmarsys.2023.103857
3Ray, A., & Sil, S. (2022) Monsoon depressions and air-sea interactions during different phases of monsoon intraseasonal oscillation. Climate Dynamics, https://doi.org/10.1007/s00382-022-06352-8
4Mohanty, S., Nadimpalli, R., Joseph, S., Srivastava, A., Das, A.K., Mohanty, U.C., Sil, S. (2022) Influence of the ocean on tropical cyclone intensity using a high resolution coupled atmosphere–ocean model: A case study of very severe cyclonic storm Ockhi over the North Indian Ocean. Quarterly Journal of the Royal Meteorological Society, 1– 17. https://doi.org/10.1002/qj.4303
5S. Sil, S. Dey and S. Mandal (2022): Seasonal Circulation of Gulf of Khambhat, India using High Frequency Radars, OCEANS 2022 - Chennai, 2022, pp. 1-5, doi: 10.1109/OCEANSChennai45887.2022.9775249.
6S. Mandal, A. Gangopadhyay, R. Balaji, and S. Sil, (2022): Evolution of a Sub-mesoscale Eddy Leeward of Andaman Islands from HF Radars, IEEE Geosciences and Remote Sensing Letters, https://doi.org/10.1109/LGRS.2022.3156288
7Sil, S., Gangopadhyay, A., Gawarkiewicz, G. and Pramanik S. (2021): Shifting seasonality of cyclones and western boundary current interactions in Bay of Bengal as observed during Amphan and Fani. Sci Rep 11, 22052. https://doi.org/10.1038/s41598-021-01607-6
8Debi Prasad Bhuyan, Samiran Mandal, Arkaprava Ray, Sourav Sil, R.Venkatesan (2021): Surface and Subsurface Signatures of Monsoon Intraseasonal Oscillations from Moored Buoys Observation in the Bay of Bengal, Dynamics of Atmosphere and Ocean, 95, 101240, https://doi.org/10.1016/j.dynatmoce.2021.101240
9VG Shashank, S. Mandal, and S. Sil (2021): Impact of Varying Landfall Time and Cyclone Intensity on Storm Surges in the Bay of Bengal using ADCIRC Model, Journal of Earth System Science 130, 194. https://doi.org/10.1007/s12040-021-01695-y
10Saikat Pramanik and Sourav Sil (2021): Assessment of SCATSat-1 Scatterometer winds on the Upper Ocean Simulations in the North Indian Ocean. Journal of Geophysical Research: Oceans, 126, e2020JC016677. https://doi.org/10.1029/2020JC016677
11S. Mandal, S. Sil, A. Gangopadhyay, B. K. Jena, R. Venkatesan and G. Gawarkiewicz (2020): Seasonal and Tidal Variability of Surface Currents in the Western Andaman Sea Using HF Radars and Buoy Observations During 2016-2017, IEEE Transactions on Geoscience and Remote Sensing, 59 (9), 7235 - 7244 https://doi.org/10.1109/TGRS.2020.3032885.
12N Behera, D Swain, S Sil (2020): Effect of Antarctic sea ice on chlorophyll concentration in the Southern Ocean Deep Sea Research Part II: Topical Studies in Oceanography, (178) 104853, https://doi.org/10.1016/j.dsr2.2020.104853
13N Behera, S Sil, D Swain (2020): Seasonal and interannual variations of Chlorophyll-a concentrations in Agulhas return current region Regional Studies in Marine Science, (39)101423, https://doi.org/10.1016/j.rsma.2020.101423
14S. Mohanty, R. Nadimpalli, U. C. Mohanty, M. Mohapatra, A. Sharma, Ananda K. Das & S. Sil (2020): Quasi-operational forecast guidance of extremely severe cyclonic storm Fani over the Bay of Bengal using high-resolution mesoscale models, Meteorology and Atmospheric Physics, https://doi.org/10.1007/s00703-020-00751-4
15Samiran Mandal, Saikat Pramanik, Sourav Sil, Kondetharayil Soman Arunraj, and Basanta Kumar Jena (2020): Sub-mesoscale circulation features along the Andhra Pradesh Coast, Bay of Bengal: Observations from HF radars, Journal of Coastal Research 89, no. sp1: 132-138, https://doi.org/10.2112/SI89-022.1
16Saikat Pramanik, Sourav Sil, Avijit Gangopadhyay, M. K. Singh and N. Behera (2020): Interannual variability of the Chlorophyll-a concentration over Sri Lankan Dome in the Bay of Bengal, International Journal of Remote Sensing, 41:15, 5974-5991, https://doi.org/10.1080/01431161.2020.1727057
17Samiran Mandal, Sourav Sil and Avijit Gangopadhyay (2020): Tide-current-eddy interaction: A seasonal study using high frequency radar observations along the western Bay of Bengal near 16°N, Estuarine, Coastal and Shelf Science, Vol. 232, 106523, https://doi.org/10.1016/j.ecss.2019.106523.
18Samiran Mandal, Sourav Sil, Avijit Gangopadhyay, B. K. Jena and R. Venkatesan (2020): On the nature of tidal asymmetry in the Gulf of Khambhat, Arabian Sea using the HF radar surface currents, Estuarine, Coastal and Shelf Science, Vol. 232, 106481, https://doi.org/10.1016/j.ecss.2019.106481.
19Saikat Pramanik, Sourav Sil, Samiran Mandal, Dipanjan Dey and Abhijit Shee (2019): Role of interannual equatorial forcing on the subsurface temperature dipole in the Bay of Bengal during IOD and ENSO events, Ocean Dynamics, 69(11), 1253-1271, https://doi.org/10.1007/s10236-019-01303-0
20Samiran Mandal, Sourav Sil, Saikat Pramanik, Arunraj K.S., Basanta Kumar Jena (2019): Characteristics and evolution of a coastal mesoscale eddy in the Western Bay of Bengal monitored by high-frequency radars, Dynamics of Atmospheres and Oceans, Volume 88, 101107, https://doi.org/10.1016/j.dynatmoce.2019.101107.
21Shyama Mohanty, Raghu Nadimpalli, Krishna K Osuri Sujata Pattanayak, U C Mohanty and Sourav Sil (2019): Role of Sea Surface Temperature in Modulating Life Cycle of Tropical Cyclones over Bay of Bengal. Tropical Cyclone Research and Review, 8(2), 74-89. https://doi.org/10.6057/2019TCRR02.02
22P. Abhishek and S. Sil (2019): Validation of Multi-Scale Ultra-High Resolution (MUR) Sea Surface Temperature with Coastal Buoys Observations and Applications for Coastal Fronts in the Bay of Bengal, URSI Asia-Pacific Radio Science Conference (AP-RASC), New Delhi, India, 2019, pp. 1-4. https://doi.org/10.23919/URSIAP-RASC.2019.8738356
23A. Shee, S. Sil, A. Gangopadhyay, G. Gawarkiewicz, and Ravichandran, M. ( 2019): Seasonal Evolution of Oceanic Upper Layer Processes in the Northern Bay of Bengal following a Single Argo Float. Geophysical Research Letters, 46. 46, 5369– 5377. https://doi.org/10.1029/2019GL082078
24R. Nadimpalli, K.K. Osuri, U.C. Mohanty, A. K. Das, A. Kumar, S. Sil, D. Niyogi (2019): Forecasting tropical cyclones in the Bay of Bengal using quasi-operational WRF and HWRF modeling systems: an assessment study. Meteorological Atmospheric Physics. 132, 1–17, https://doi.org/10.1007/s00703-019-00669-6
25Saikat Pramanik, Samiran Mandal, Subrota Halder, Sourav Sil (2019): Tidal Circulation Studies Using Regional Model in the Bay of Bengal. In: Murali K., Sriram V., Samad A., Saha N. (eds) Proceedings of the Fourth International Conference in Ocean Engineering (ICOE2018). Lecture Notes in Civil Engineering, vol 22. Springer, Singapore, https://doi.org/10.1007/978-981-13-3119-0_55
26Samiran Mandal, Saikat Pramanik, Subrota Halder, Sourav Sil (2019): Statistical Analysis of Coastal Currents from HF Radar Along the North-Western Bay of Bengal. In: Murali K., Sriram V., Samad A., Saha N. (eds) Proceedings of the Fourth International Conference in Ocean Engineering (ICOE2018). Lecture Notes in Civil Engineering, vol 23. Springer, Singapore. https://doi.org/10.1007/978-981-13-3134-3_8
27Sudip Jana, Avijit Gangopadhyay, Pierre F.J. Lermusiaux, Arun Chakraborty, Sourav Sil, Patrick J. Haley (2018): Sensitivity of the Bay of Bengal upper ocean to different winds and river input conditions,Journal of Marine Systems, Vol. 187, 206-222. https://doi.org/10.1016/j.jmarsys.2018.08.001
28Samiran Mandal, Sourav Sil, Abhijit Shee, and R. Venkatesan (2018): Upper Ocean and Sub-Surface Variability in the Bay of Bengal during Cyclone ROANU: A Synergistic view using In situ and Satellite Observations, Pure and Applied Geophysics, Vol. 175 (12), 4605–4624. https://doi.org/10.1007/s00024-018-1932-8
29Samiran Mandal, Sourav Sil, Avijit Gangopadhyay, Tad Murty & Debadatta Swain (2018) On extracting high-frequency tidal variability from HF radar data in the northwestern Bay of Bengal, Journal of Operational Oceanography, Vol. 11 (2), 65 - 81. https://doi.org/10.1080/1755876X.2018.1479571
30Samiran Mandal, Sourav Sil, Abhijit Shee, Debadatta Swain and P. C. Pandey (2018), Comparative analysis of SCATSat-1 Gridded Winds with Buoys, ASCAT and ECMWF Winds in the Bay of Bengal. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing. Vol. 11 (3), 845 - 851. https://doi.org/10.1109/JSTARS.2018.2798621
31Dipanjan Dey, Sourav Sil, Sudip Jana, Saikat Pramanik, P.C. Pandey (2017), An assessment of TropFlux and NCEP air-sea fluxes on ROMS simulations over the Bay of Bengal region. Dynamics of Atmospheres and Oceans. Vol. 80, 47-61, https://doi.org/10.1016/j.dynatmoce.2017.09.002
32Praveen Kumar Pothapakula, Krishna K. Osuri, Sujata Pattanayak, U. C. Mohanty, Sourav Sil and Raghu Nadimpalli (2017), Observational perspective of SST changes during life cycle of tropical cyclones over Bay of Bengal. Natural Hazards. Vol. 88 (3), pp 1769–1787, https://doi.org/10.1007/s11069-017-2945-9
33Sourav Sil, A. Chakraborty, S. K. Basu and P.C. Pandey (2014), Response of Oceansat II Scatterometer winds in the Bay of Bengal Circulation, International Journal of Remote Sensing. Vol. 35, No. 14, 5315–5327. https://doi.org/10.1080/01431161.2014.926423
34 Tarumay Ghoshal, Sourav Sil and Arun Chakraborty (2014), An Inter-comparison of Daily and Monthly In-situ, Satellite Derived and Reanalyzed Sea Surface Temperature Climatology Fields over the Bay of Bengal. Marine Geodesy, Vol. 37, No. 1, 65 – 76. https://doi.org/10.1080/01490419.2013.868384.
35Yasumasa Miyazawa, Hiroshi Murakami, Toru Miyama, Sergey M. Varlamov, Xinyu Guo, Takuji Waseda, Sourav Sil (2013), Data assimilation of the high-resolution sea surface temperature obtained from the Aqua-Terra satellites (MODIS-SST) using an ensemble Kalman Filter, Remote Sensing 5, 3123-3139.
36Sourav Sil and A. Chakraborty (2012), The mechanism of the 20°C isotherm depth oscillation for the Bay of Bengal, Marine Geodesy, Vol. 35, 233 – 245. https://doi.org/10.1080/01490419.2011.637865
37 Sourav Sil and Arun Chakraborty (2011), Numerical Simulation of Seasonal variations in circulations of the Bay of Bengal, Journal of Oceanography and Marine Science, Vol. 2 (5), 127-135.
38Sourav Sil and Arun Chakraborty (2011), Simulation of East India Coastal Features and Validation with Satellite Altimetry and Drifter Climatology, International Journal of Oceans and Climate System, Vol. 2, No. 4, 279 -289.
39Bishnu Kumar, Sourav Sil, A. Chakraborty and P.C. Pandey (2010), Seasonal and monthly variation of vertical structure of temperature, salinity and heat flux of the Bay of Bengal, Marine Geodesy, Vol. 33, 76 – 99. https://doi.org/10.1080/01490410903534408

Recent Publications (National Journals)

1Nadimpalli, R., Nekkali, S., Osuri, K., Sil, S., & Das, A. (2023) Study of the impact of high resolution ROMS-SST on the simulation of two intense tropical cyclones over Bay of Bengal using ARW modeling system. MAUSAM, 74(1), 105–118. https://doi.org/10.54302/mausam.v74i1.5766
2Saikat Pramanik, S., Sil, & S. Mandal (2020): Time series analysis of observed maximum and minimum air temperature at four urban cities of India during 1951-2015, MAUSAM, 71(1), 57-68. https://metnet.imd.gov.in/mausamdocs/17116_F.pdf
3Samiran Mandal and Sourav Sil (2017), Coastal Currents from HF Radars along Odisha Coast, Ocean Digest, Quarterly Newsletter of the Ocean Society of India, Volume 4 (1), 4 - 6.
4 Praveen kumar Pothapakula, Sourav Sil and U C Mohanty (2016), Impact of High Resolution ROMS-SST on the Simulation of Tropical Cyclone Phailin Over Bay of Bengal using ARW Modeling System, The Indian Ocean Bubble, Vol: 5, 10 -11

Conferences (International)

1Samiran Mandal, Saikat Pramanik, Subrota Halder and Sourav Sil (2018), Statistical Analysis of Coastal Currents along the Northwestern Bay of Bengal, International Conference in Ocean Engineering, 18–21 February, 2018 IITM, Chennai, India
2Saikat Pramanik, Samiran Mandal, Subrota Halder and Sourav Sil (2018), Tidal Circulation studies using regional model in the Bay of Bengal, International Conference in Ocean Engineering, 18–21 February, 2018, IITM, Chennai, India
3Samiran Mandal, Abhijit Shee, Saikat Pramanik, Sourav Sil (2017), Validation of SCATSAT-1 winds with RAMA, ASCAT, ECMWF reanalysis winds in the Bay of Bengal, International Tropical Meteorology Symposium (INTROMET – 2017), November 07-10, 2017, Space Application Centre (SAC), Indian Space Research Organization (ISRO), Ahmedabad, India
4Saikat Pramanik, Abhijit Shee, Samiran Mandal and Sourav Sil (2017), Relative Performance of ASCAT, SCATSAT and ECMWF Re-Analysis Winds on upper Ocean Simulation using ROMS, International Tropical Meteorology Symposium (INTROMET – 2017), November 07-10, 2017, Space Application Centre (SAC), Indian Space Research Organization (ISRO), Ahmedabad, India
5S. Sil, S. Mandal, A. Gangopadhyay, T. Murty and D. Swain (2015), Analysis of HF Radar Derived Ocean Currents in Northwestern Bay of Bengal, Dynamics of the Indian Ocean: Perspective and Retrospective, International Symposium on the Indian Ocean, 30 November - 4 December, 2015 Goa, India.
6S. Mandal, D. Dey, S. Pramanik, A. Shee and S. Sil (2016), Characteristics of Tides in the North Western Bay of Bengal: A comparative study between HF Radar and Model, International Conference on Recent Advances in Regional Ocean Modeling, March 10 – 12, 2016, IIT Kharagpur
7N. Behera, D. Swain and S. Sil (2016), Effect of Agulhas Return Current on Primary Productivity, International Conference on Recent Advances in Regional Ocean Modeling, March 10 – 12, 2016, IIT Kharagpur

Conferences (National)

1S. Mandal, S. Sil, K. S. Arunraj and B. K. Jena (2017), Sub-mesoscale Circulation Features along Andhra Coast: Observations from HF radar, "5th National Conference of Ocean Society (OSICON 2017)" , Aug 28 -30, 2017, NCESS, Thiruvananthapuram, p 155
2A. Shee, S. Halder and S. Sil (2017), Comparisons of Eddy Detection Methods in the Bay of Bengal, "5th National Conference of Ocean Society (OSICON 2017)" , Aug 28 -30, 2017, NCESS, Thiruvananthapuram, p 72
3S. Pramanik, D. Dey and S. Sil (2017), Effect of Kelvin and Rossby Waves in the Bay of Bengal using ROMS, "5th National Conference of Ocean Society (OSICON 2017)" , Aug 28 -30, 2017, NCESS, Thiruvananthapuram, p 53
4Nibedita Behera, D. Swain and S. Sil (2017), Influence of Polar Water on the Biology of Southern Indian Ocean, National Conference on Polar Sciences (NCPS-2017)" , May 16-17, 2017, NCAOR, Goa
5Samiran Mandal and Sourav Sil (2017), OMNI Buoys: A Platform for Multi-Scale Circulation Studies, Workshop on "Two decades of Observing the Oceans" , 22 April, 2017, NIOT, Chennai, India
6Subrota Halder and Sourav Sil (2017), Hydrography of Meso-scale Eddies in the Bay of Bengal using Argo and Altimetry Data, Research Conclave'17, 16 - 19 March, 2017, IIT Guwahati, India
7Samiran Mandal, Abhijit Shee, Dipanjan Dey, Saikat Pramanik, Sourav Sil (2016), Observed Upper Ocean And Subsurface Variability In The Bay Of Bengal During The Passage Of The Cyclone Roanu, TROPMET 2016, 18 - 21 December, 2016, Bhubaneswar, Odisha, India
8Raghu Nadimpalli, Krishna K Osuri, U C Mohanty And Sourav Sil (2016), Impact Of Vortex Initialization And Relocation Technique In Predicting Tropical Cyclones Over Bay Of Bengal, TROPMET 2016, 18 - 21 December, 2016, Bhubaneswar, Odisha, India
9Dipanjan Dey, S. Pramanik, S. Sil and S. Mandal (2016), Comparison of Ocean Simulations by TropFlux Forcing with Satellite and NDBP Buoys, HOOFS Symposium, , March 03, 2016, INCOIS, Hyderabad
 

Academic Honors & Awards

  • JEST 2008
  • GATE 2008
 

Research Scholar

 Ph. D. (Ongoing):
 
1. Abhijit Shee
2. Rahul Deogharia
3. Sudeep Das
4. Arkaprava Ray
5. Subhashree Sahoo
6. Hitesh Gupta
7. Shouvik Dey
 
 
 
Ph. D. (Completed):
 
1. R. Nadimpalli
2. Samiran Mandal
3. Saikat Pramanik
4. Nibedita Behera
5. Shayma Mohanty
 
 

UG/PG Supervision

 Master's Project/Thesis: 43
  • M. Tech.:  Completed 14, Ongoing: 4
  • M. Sc.: Completed 20, Ongoing 5

 

Bachelor's Project/Thesis: 01

  • B. Tech.: Completed 1

Students Best Presentation Awards

 
  • Mr. Samiran Mandal, has been awarded second best poster among the young researchers in the 5th Nation Conference of Ocean Society of India held at National Centre for Earth Science Studies during 28 -30 Aug, 2017. Title: "Sub-mesoscale Circulation Features along Andhra Coast: Observations from HF radar" by S. Mandal, S. Sil, K. S. Arunraj and B. K. Jena
  • Mr. Samiran Mandal has been awarded for first best students' presentation award at Workshop on "Two decades of Observing the Oceans" at NIOT, Chennai on April 22nd 2017. Title:OMNI Buoys: A Platform for Multi-Scale Circulation Studies
  • Mr. Subrota Halder, M. Sc Student, Atmosphere and Ocean Science has been awarded second prize in the Poster Presentation (in Engineering Science) at Research Conclave'17, IIT Guhawati. Title: Hydrography of Meso-scale      Eddies in the Bay of Bengal using Argo and Altimetry Data by S. Halder and S. Sil

Professional Experience

 Postdoctroral Researcher at JAMSTEC, Japan from June 2012 to June 2013

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