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भारतीय उष्णदेशीय मौसम विज्ञान संस्थान

Indian Institute of Tropical Meteorology

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पृथ्वी प्रणाली विज्ञान परिषद के अंतर्गत एक संस्थान, पृथ्वी विज्ञान मंत्रालय, भारत सरकार
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Team Member

Dr. Suryachandra A. Rao

Director

surya[at]tropmet[dot]res[dot]in
91-(0)20-25904202
Orcid: 0000000000

Division

Area of Expertise

Climate Variability and Prediction

Research

  • Air-Sea interactions in the Indian Ocean
  • Coupled Ocean-Atmosphere Dynamics
  • Climate Variability and Prediction
  • Physical Oceanography
  • Coupled Climate Modelling
  • Ocean Modelling
Academic Records
Degree University Year Stream
Awards & Honors
Award Name Awarded By Awarded For Year
Scientific Careers
Year Designation Institute

Other Information of Dr. Suryachandra A. Rao

  • Research Region
  • Research Activities
  • Skills/Expertise 
  • Honors & Professional membership
  • Reviewer of Journals
  • Selected Conference Presentations
  • Projects

Research Region

  • Indian Ocean
  • Pacific Ocean  

Research Activities

  • Climate variability Intra-seasonal and interannual variability
  • Scale interactions Indian Ocean Dipole
  • El Nino Modoki

Skills/Expertise

  • Analysis of observational and model results
  • Working knowledge of OGCM, CGCM


Honors & Professional membership

Acted as chairperson for some sessions in International Meetings.

  • Member, CLIVAR-GEWEX Monsoons Panel, CLIVAR-GEWEX Monsoons Panel Membership
  • Member, Application Group of the National Super Computing Mission, India
  • Member,  Oceanographic Society of Japan
  • Member,  American Geophysical Union
  • Member, Asia Oceania Geosciences Society
  • Member, Indian Meteorological Society
  • Member, WGNE MJO Task Force (Working Group on Numerical Experimetation Madden Julian Oscillation Task Force)
  • Editor, Weather and Climate Extremes, Elsevier Publication

Reviewer of Journals

  •  Journal of Geophysical Research
  •  Journal of Oceanography
  • Geophysical Research Letters
  • Journal of Climate
  • International Journal of Climatology
  • Dynamics of Atmospheres and Oceans
  • Proceedings of Earth and Planetary Sciences
  • Advances in atmospheric sciences, Ocean Modelling
  • Hydrological Processes, Journal of Physical Oceanography
  • Meteorology and Atmosphere Physics
  • Current Science
  • International Journal of Remote Sensing
  • Journal of Oceanography
  • Monthly Weather Review
  • NSF proposals


Selected conference presentations

  1. V.V.Gopalakrishna, Suryachandra A. Rao, M.S.S.Sarama, S.M.Pednekar, B.P.Lambata, L.V.G.Rao and R.R.Rao. Observed year to year variability in the thermal structure along Madras-Andamans XBT track line in the Bay of Bengal, International Scientific Conference on TOGA programme, 1995
  2. V.V.Gopalakrishna, Suryachandra A. Rao, M.S.S.Sarama, Shailesh M.Pednekar, Balajee P.L, and L.V.G.Rao. Interannual variability of the surface meteorologiocal fields over the Bay of Bengal along selected XBT track lines. Workshop on Monsoon and Tropical Climate, 1997
  3. V.V.Gopalakrishna,  Suryachandra A. Rao, G.Venkata Reddy, K.A.Rao, R.R.Rao, and L.V.G.Rao, Inter-basin exchange of sub-surface water masses in the North Indian Ocean during southwest monsoon. International Conference on Ocean circulation and climate, 1998
  4. Suryachandra A. Rao and I. Belgrove, Hydrography and Circulation along the east coast of the Gulf of Paria during the wet season, 6th Annual Reseasrch symposium, 1999.
  5. Suryachandra A Rao., T.Yamagata., Quasi-biennial and quasi-pentadal oscillations in the tropical Indian Ocean,  Western Pacific Geophysical Meeting of American Geophysical Union, June 2000.
  6. Suryachandra A. Rao., V.V.Gopalakrishna., S.R.Shetye., and T.Yamagata., On the absence of cool SST anomalies in the Bay of Bengal during the 1997 Dipole Mode Event in the Indian Ocean, Oceanographic Society of Japan Fall meeting, September 2000
  7. Suryachandra A Rao, S. K. Behera, Y. Masumoto, and T. Yamagata., Interannual Variability in the subsurface tropical Indian Ocean, Pacific Ocean Remote Sensing Conference, December 2000
  8. Suryachandra A Rao, S. K. Behera, Y. Masumoto, and T. Yamagata., Interannual Variability in the subsurface tropical Indian Ocean, FRSGC Annual Symposium, March 2001
  9. Suryachandra A. Rao., S. K. Behera and T. Yamagata., Relative influence of ENSO and IOD on the Indian Ocean variability, Oceanographic Society of Japan Spring meeting, May 2002
  10. Suryachandra A Rao., S. K. Behera., T. Yamagata., Indian Ocean Dipole: Is it predictable?. FRSGC Annual Symposium, March 2002
  11. Suryachandra A Rao., S. K. Behera., T. Yamagata., Relative influence of ENSO and IOD on the Indian Ocean variability Western Pacific Geophysical Meeting of American Geophysical Union, June 2002
  12. Suryachandra A Rao., S. K. Behera., T. Yamagata., The role of ocean dynamics on initiation, intensification and phase reversal of the Indian Ocean Dipole. World Ocean Circulation Experiment, international conference, November 2002
  13. Suryachandra A. Rao, S.K. Behera, and T. Yamagata, 2003: Structure and Seasonal Dependence of Air-Sea Coupling in the Tropical Indian Ocean. IUGG meeting, Sapporo Tokyo
  14. T. Yamagata, K. Ashok, K. Baba, S. K. Behera, Z. Guan, S. Masson, Y. Masumoto, H. Nakamura, R. Ohba, Suryachandra A. Rao, H. Sakuma, 2003: Seasonal and interannual rainfall variability in the southwestern region of Saudi Arabia The Joint State of Kuwait-Japan Symposium in 2003, Kuwait
  15. Suryachandra A Rao. ENSO and IOD influences in the tropical Indian Ocean 2003: Ad Hoc Discussion meeting on the Indian Ocean Dipole and its Influence on Global Climate (invited). Tokyo
  16. Suryachandra A. Rao, Abrupt termination of Indian Ocean Dipole events in response to intra-seasonal disturbances. Oceanographic Society Meeting, 2004 Fall Meeting. Matsuyama, Japan
  17. Suryachandra A. Rao, Abrupt termination of Indian Ocean Dipole events in response to intra-seasonal disturbances. Indian Oceam Modelling workshop, Honolulu Hawai. USA
  18. Suryachandra A. Rao, Variability in chlorophyll a concentrations in the southern tropical Indian Ocean. Asia Oceania Geosciences Society 2005 annual meeting (invited), Singapore
  19. Suryachandra A. Rao, Termination of Indian Ocean dipole events in a coupled general circulation model. Asia Oceania Geosciences Society 2005 annual meeting, Singapore
  20. Suryachandra A. Rao 2006: The role of ocean-atmosphere coupling in the Indian Ocean on simulation of the intraseasonal oscillations in a coupled general circulation model (Meteorological Society of Japan, 2006 Spring Meeting, Japan)
  21. Suryachandra A. Rao, 2006: The role of ocean-atmosphere coupling in the Indian Ocean on simulation of the intraseasonal oscillations in a coupled general circulation model (invited talk, in IIIrd Asia-Oceanic Geophysical Society Annual meeting , Singapore)
  22. Suryachandra A. Rao, 2006: Interannual variability in the strength of thermal domes in the tropical Indian Ocean and its role on chlorophyll distribution. (Poster in SIBER workshop, India)
  23. Suryachandra A. Rao, 2008: Number of extreme Rainfall Events are increasing over central India, Why?. Invited talk at first international work shop on Atmospheric Science and Technology, India
  24. Suryachandra A. Rao, 2009: Indian Ocean Warm Pool variations and its impact on Indian Summer Monsoon. Invited talk at Saral-Altika international workshop.  SAC, Ahmedabad, India
  25. Suryachandra A. Rao, 2009: Climate variability in the Indian Ocean and its impact on global climate. Lead talk at IBSA-Ocean workshop, Goa, India

Projects

  • Project member: TOGA-I, XBT observations in Indian Ocean Seas
  • Project leader: Gulf of Paria: Hydrography and circulation
  • Project leader: Environmental Impact Assessments studies in Gulf of Paria
  • Project member: Investigation of the generation of maritime dessert and clarification and prediction of its variability by the general circulation model using the Earth Simulator.
  • Project member: Process studies and seasonal prediction experiment using coupled general circulation model
  • Project Leader: Variations in the Indian Ocean Warmpool and its association with the Indian Summer Monsoon
  • Co-Project Leader: Development of coupled Ocean-Atmosphere Model for strategy of Indian Summer Monsoon
  • Co-Project Leader: Estimation and validation of Fresh water flux and its influence on ocean circulation and Hydrography
  • Dy. Program manager: Extended range Prediction of Summer Monsoon
  • Project Leader: Oceanographic Observations  in the Northern Bay of Bengal Deep Convection Region During CTCZ
Publications

Publications


113. Hazra A., Mallick C., Bhowmik M., Dutta U., Domkawale M.A., Pawar S.D., Rao Suryachandra A., Heterogeneity of Lightning Flash Density and Its Association With Thermodynamical, Dynamical and Cloud Microphysical Properties Over Indian Subcontinent, International Journal of Climatology, 46, July 2026, DOI:10.1002/joc.70512, 1-20

112. Umakanth U, Swapna P, Narayanasetti S, Rao Suryachandra A., Pratap B, Pramod K, Rakesh J, Thamban M (in press). Accelerated hydrological response of the Western Himalayan glaciers to warming. Environ Res Clim. https://doi.org/10.1088/2752-5295/ae7749

111. Lekshmi S., Bhowmik M., Hazra A., Jain D., Pillai P., Rao Suryachandra A., Evaluating the biases in Indian summer monsoon rainfall simulation using the global storm resolving models: An assessment of the DYAMOND models, Earth and Space Science, 13: e2025EA004708, June 2026, DOI:10.1029/2025EA004708, 1-20

110. Kiran V.G., Rao Suryachandra A., Pillai P.A., Maurya R.K.S., Srivastava Ankur, Pradhan M., Evidence of the linkage between mesoscale eddy activity in the Bay of Bengal and Indian Summer Monsoon Rainfall, Atmospheric Research, 333: 108708, April 2026, DOI:10.1016/j.atmosres.2025.108708, 1-44

109. Alone A., Srivastava Ankur, Rao Suryachandra A., Pradhan M., Geetanjali S., Soni A., Joseph S. , Seasonal forecasts of marine heat waves using Monsoon Mission Climate ForecaSt system, Theoretical and Applied Climatology, 157: 274, April 2026, DOI:10.1007/s00704-026-06218-7, 1-17

108. Bhat G., Jampana V., Rao E.P.R., Prasad S.S., … , Rao Suryachandra A., Pradhan M., Jayakumar A., Anurose T., Year-long eddy covariance surface fluxes from a Bay of Bengal mooring compared with operational monsoon mission models, Current Science, 103, March 2026415-422, DOI:10.18520/cs/v130/i5/415-422, 415-422

107. Nellipudi N.R., Rao Suryachandra A., Jain D., Pillai P.A., Srivastava Ankur, Pradhan M., Seasonal prediction of summer monsoon rainfall over homogeneous regions of India: evolution of monsoon mission coupled climate models, Climate Dynamics, 64: 37, January 2026, DOI:10.1007/s00382-025-08004-z, 1-23

106. Srivastava Ankur, Martin G.M., Pradhan M., Suryachandra A., Ineson S., The multi-year negative Indian Ocean Dipole of 2021–2022, Weather and Climate Dynamics, 7, January 2026, DOI:10.5194/wcd-7-1-2026, 1-15

105. Maurya R.K.S., Pradhan M., Rao 106. Srivastava Ankur, Martin G.M., Pradhan M., Suryachandra A., Ineson S., The multi-year negative Indian Ocean Dipole of 2021–2022, Weather and Climate Dynamics, 7, January 2026, DOI:10.5194/wcd-7-1-2026, 1-15Suryachandra A., Jain D., Srivastava A., Pillai P.A., Kiran V.G., Das R.S., Monsoon Low-Pressure Systems in Monsoon Mission Climate Forecast System Version 2, International Journal of Climatology, 2025 May, DOI:10.1002/joc.8891

104. Suneeth K.V., Pillai P.A., Rao Suryachandra A., Jain D., Pradhan M., Srivastava A., Assessment of Indian Summer Monsoon in Seasonal Hindcasts From Next-Generation GFDL and IITM Models, International Journal of Climatology, 2025 Aug, DOI:10.1002/joc.70068

103. Nanjundiah R.S., Venkatesh T.N., Rao Suryachandra A., Evolution of monsoon studies using HPC: past, present and future, Sādhanā, 50(3), July 2025, DOI:10.1007/s12046-025-02771-5, 141

102. Gollapalli S., Osuri K.K., Dandi A.R., Rao Suryachandra A., Impact of shifting patterns of the South Asian High on interannual variability of Indian summer monsoon rainfall in homogeneous regions, Quarterly Journal of the Royal Meteorological Society, 150, October 2024, DOI:10.1002/qj.4892, 5583-5604

101. Bhowmik M., Hazra A., Srivastava Ankur, Mudiar D., Chaudhari H.S., Rao Suryachandra A., Wang L., Improved Indian Summer Monsoon rainfall simulation: the significance of reassessing the autoconversion parameterization in coupled climate model, Climate Dynamics, Online, June 2024, DOI:https://doi.org/10.1007/s00382-024-07243-w

100. Kumar Bipin, Haral H., Kalapureddy M.C.R., Singh B.B., Yadav S., Chattopadhyay R., Pattanaik D.R., Rao Suryachandra A., Mohapatra M., Utilizing deep learning for near real-time rainfall forecasting based on Radar data, Physics and Chemistry of the Earth, 135: 103600, October 2024, DOI:10.1016/j.pce.2024.103600, 1-10

99.  Dhage P.M., Srivastava Ankur, Rao Suryachandra A., Soni A., Pradhan M., Applicability of seasonal forecasts from dynamical models for reservoir management practices, Mausam, 75, April 2024, DOI:10.54302/mausam.v75i2.6229, 559-572

98.  Sripathi G., Dandi A.R., Saikrishna T.S., Osuri K.K., Rao Suryachandra A., Dynamic relationship between Indian summer monsoon rainfall and South Asian high in seasonal coupled model, Climate Dynamics, 62, March 2024, DOI:10.1007/s00382-023-07003-2, 1925-1944

97. Gaikwad S., Kumar Bipin, Yadav P.P., Ambulkar R., Govardhan G., Kulkarni S.H., Kumar Rajesh, Chate D.M., Nigam N., Rao Suryachandra A., Ghude S.D., Harnessing deep learning for forecasting fire-burning locations and unveiling PM2.5 emissions, Modeling Earth Systems and Environment, Online, July 2023, DOI:10.1007/s40808-023-01831-1, 1-15 

96. Kumar Bipin, Atey K., Singh B.B., Chattopadhyay R., Acharya N., Singh Manmeet, Nanjundiah R.S., Rao Suryachandra A., On the modern deep learning approaches for precipitation downscaling, Earth Science Informatics, 16, June 2023, DOI:10.1007/s12145-023-00970-4, 1459-1472

95. Singh Manmeet., Acharya N., Patel P., Jamshidi S., Yang Z-L, Kumar Bipin, Rao Suryachandra A., Gill S.S., Chattopadhyay R., Nanjundiah R.S., Niyogi D., A modified deep learning weather prediction using cubed sphere for global precipitation, Frontiers in Climate, 4: 1022624, January 2023, DOI:10.3389/fclim.2022.1022624, 1-10

94. Karrevula N.R., Dandi R.A., Nageswararao M.M., Rao Suryachandra A., Inter-annual variability of pre-monsoon surface air temperatures over India using the North American Multi-Model Ensemble models during the global warming era, Theoretical and Applied Climatology, 151, January 2023, DOI:10.1007/s00704-022-04269-0, 133-151

93. Saikrishna T.S., Dandi R.A., Hari Prasad K.B.R.R., Osuri K.K., Rao Suryachandra A., High resolution dynamical downscaling of global products using spectral nudging for improved simulation of Indian monsoon rainfall, Atmospheric Research, 280: 106452, December 2022, DOI:10.1016/j.atmosres.2022.106452, 1-15.

92. Rohini P., Rajeevan M., Rao Suryachandra A., Pillai P.A., Assessment of hot weather seasonal temperatures over India using Monsoon Mission Coupled Forecasting System hindcasts, International Journal of Climatology, Online, September 2022, DOI:10.1002/joc.7866, 1-13

91. Das Renu S., Rao Suryachandra A., Pillai P.A., Srivastava Ankur, Pradhan M., Dandi R.A., Why coupled general circulation models overestimate the ENSO and Indian Summer Monsoon Rainfall (ISMR) relationship?, Climate Dynamics, 59, November 2022, DOI:10.1007/s00382-022-06253-w, 2995–3011

90. Gade S.V., Sreenivas P., Rao Suryachandra A., Srivastava Ankur, Pradhan M., Impact of the Ensemble Kalman Filter based Coupled Data Assimilation System on Seasonal Prediction of Indian Summer Monsoon Rainfall, Geophysical Research Letters, 49: e2021GL097184, August 2022, DOI:10.1029/2021GL097184, 1-20 

89. Pradhan M, Rao Suryachandra A., Bhattacharya A., Balasubramanian S., Improvements in Diurnal Cycle and Its Impact on Seasonal Mean by Incorporating COARE Flux Algorithm in CFS, Frontiers in Climate, 3: 792980, February 2022, DOI:10.3389/fclim.2021.792980, 1-21 

88. Greeshma M Mohan, K Gayatri Vani, Anupam Hazra, Chandrima Mallick, Hemantkumar S Chaudhari, Samir Pokhrel, SD Pawar, Mahen Konwar, Subodh K Saha, Subrata K Das, Sachin Deshpande, Sachin Ghude, MC Barth, SA Rao, RS Nanjundiah, M Rajeevan: (2021) Evaluating different lightning parameterization schemes to simulate lightning flash counts over Maharashtra, India; 2021/6/15; Atmospheric Research; Elsevier

87. Hemadri Bhusan Amat, Maheswar Pradhan, CT Tejavath, Avijit Dey, Suryachandra A Rao, AK Sahai, Karumuri Ashok: (2021) Value addition to forecasting: towards Kharif rice crop predictability through local climate variations associated with Indo-Pacific climate drivers 2021/3/8; Theoretical and Applied Climatology; Springer Vienna

86. Prasanth A Pillai, Suryachandra A Rao, Ankur Srivastava, DA Ramu, Maheswar Pradhan, Renu S Das: (2021) Impact of the tropical Pacific SST biases on the simulation and prediction of Indian summer monsoon rainfall in CFSv2, ECMWF-System4, and NMME models; 2021/3; Climate Dynamics; Springer Berlin Heidelberg

85. Ankur Srivastava, Suryachandra A Rao, Maheswar Pradhan, Prasanth A Pillai, VS Prasad (2021): Gain of one-month lead time in seasonal prediction of Indian summer monsoon prediction: comparison of initialization strategies; 2021/2: Theoretical and Applied Climatology; Springer Vienna

84. Maheswar Pradhan, Suryachandra A Rao, Ankur Srivastava (2021): Factors responsible for consecutive deficit Indian monsoons during 2014 and 2015: 2021/2: Theoretical and Applied Climatology: Springer Vienna

83. PA Francis, AK Jithin, JB Effy, Abhisek Chatterjee, Kunal Chakraborty, Arya Paul, B Balaji, SSC Shenoi, P Biswamoy, A Mukherjee, P Singh, B Deepsankar, S Siva Reddy, PN Vinayachandran, MS Girish Kumar, TVS Udaya Bhaskar, M Ravichandran, AS Unnikrishnan, D Shankar, A Prakash, SG Aparna, R Harikumar, K Kaviyazhahu, K Suprit, RV Shesu, N Kiran Kumar, N Srinivasa Rao, K Annapurnaiah, R Venkatesan, AS Rao, EN Rajagopal, VS Prasad, MD Gupta, TM Balakrishnan Nair, EPR Rao, BV Satyanarayana (2020): High-resolution operational ocean forecast and reanalysis system for the Indian ocean: 2020/8/1: Bulletin of the American Meteorological Society

82. Hari Prasad KBRR, Sreenivas Pentakota, Suryachandra Rao Anguluri, Gibies George, Kiran Salunke, Phani Murali Krishna, Dandi Appala Ramu, Dabbugottu Nagarjuna Rao (2020) Impact of horizontal resolution on sea surface temperature bias and air–sea interactions over the tropical Indian Ocean in CFSv2 coupled model, International Journal of Climatology81. 

81. Suryachandra A Rao, BN Goswami, AK Sahai, EN Rajagopal, P Mukhopadhyay, M Rajeevan, S Nayak, LS Rathore, SSC Shenoi, KJ Ramesh, RS Nanjundiah, M Ravichandran, AK Mitra, DS Pai, SKR Bhowmik, A Hazra, S Mahapatra, SK Saha, HS Chaudhari, S Joseph, P Sreenivas, S Pokhrel, PA Pillai, R Chattopadhyay, M Deshpande, RPM Krishna, Renu S Das, VS Prasad, S Abhilash, S Panickal, R Krishnan, S Kumar, DA Ramu, SS Reddy, A Arora, T Goswami, A Rai, A Srivastava, M Pradhan, S Tirkey, M Ganai, R Mandal, A Dey, S Sarkar, S Malviya, A Dhakate, K Salunke, Parvinder Maini (2019), Monsoon Mission: A targeted activity to improve monsoon prediction across scales: Bulletin of the American Meteorological Society, 100, 12, 2509-2532

80. Mahendra Benke, Jasmine Takle, DS Pai, Suryachandra A Rao, (2019), Analysis of Monsoon Mission Coupled Forecasting System (MMCFS) model simulations of sub-division scale temperatures over India for the hot weather season (April–June): Journal of Earth System Science, Springer India.128, 7, 182.

79. R Phani Murali Krishna, Suryachandra A Rao, Ankur Srivastava, Hari Prasad Kottu, Maheswar Pradhan, Prasanth Pillai, Ramu A Dandi, CT Sabeerali, (2019), Impact of convective parameterization on the seasonal prediction skill of Indian summer monsoon: Climate Dynamics, Springer Berlin Heidelberg, 1-17

78. Suryachandra A Rao, Prasanth A Pillai, Maheshwar Pradhan, Ankur Srivastava, (2019), Seasonal prediction of Indian summer monsoon in India: The past, the present and the future: MAUSAM, INDIA METEOROLOGICAL DEPT, 70, 2, 265-276

77. CT Sabeerali, RS Ajayamohan, Suryachandra A Rao (2019), Loss of predictive skill of indian summer monsoon rainfall in NCEP CFSv2 due to misrepresentation of Atlantic zonal mode: Springer Berlin Heidelberg, Climate Dynamics.

76. Ankur Srivastava, Maheswar Pradhan, BN Goswami, Suryachandra A Rao (2019), Regime shift of Indian summer monsoon rainfall to a persistent arid state: external forcing versus internal variability, Meteorology and Atmospheric Physics, 131, 2, 211-224.

75. Prasanth A Pillai, Suryachandra A Rao, Renu S Das, Kiran Salunke, Ashish Dhakate (2018): Potential predictability and actual skill of boreal summer tropical SST and Indian summer monsoon rainfall in CFSv2-T382: role of initial SST and teleconnections: Climate Dynamics: 51, 1-2,493-510

74. CT Sabeerali, RS Ajayamohan, Suryachandra A Rao (2018): Loss of predictive skill of indian summer monsoon rainfall in NCEP CFSv2 due to misrepresentation of Atlantic zonal mode: Climate Dynamics: 1-21

73. Samir Pokhrel, Anupam Hazra, Hemantkumar S Chaudhari, Subodh K Saha, Febin Paulose, Sujith Krishna, Phani Murli Krishna, Suryachandra A Rao (2018): Hindcast skill improvement in Climate Forecast System (CFSv2) using modified cloud scheme: International Journal of Climatology (I. F. - 3.609).

72. Anika Arora, Suryachandra A Rao, Prasanth Pillai, Ashish Dhakate, Kiran Salunke, Ankur Srivastava (2018): Assessment of prediction skill in equatorial Pacific Ocean in high resolution model of CFS: Climate Dynamics, (I. F. - 4.708).

71. Prasanth A Pillai, Suryachandra A Rao, Dandi A Ramu, Maheswar Pradhan, Gibies George (2018): Seasonal prediction skill of Indian summer monsoon rainfall in NMME models and monsoon mission CFSv2: International Journal of Climatology. (I.F. - 3.609).

70. Maheswar Pradhan, A Suryachandra Rao, Ankur Srivastava, Ashish Dakate, Kiran Salunke, KS Shameera (2017): Prediction of Indian Summer-Monsoon Onset Variability: A Season in Advance, Scientific Reports, 14229, 7.

69. Tanmoy Goswami, Suryachandra A Rao, Anupam Hazra, Hemantkumar S Chaudhari, Ashish Dhakate, Kiran Salunke, Somnath Mahapatra (2017): Assessment of simulation of radiation in NCEP Climate Forecasting System (CFS V2), Atmospheric Research 193, 94-106.

68. Prasanth A Pillai, Suryachandra A Rao, Gibies George, D Nagarjuna Rao, S Mahapatra, M Rajeevan, Ashish Dhakate, Kiran Salunke (2017): How distinct are the two flavors of El Niño in retrospective forecasts of Climate Forecast System version 2 (CFSv2)?( Climate Dynamics 48(11-12). 3829-3854.

67. Maheswar Pradhan, Ramesh Kumar Yadav, A Ramu Dandi, Ankur Srivastava, MK Phani, Suryachandra A Rao (2017): Shift in MONSOON–SST teleconnections in the tropical Indian Ocean and ENSEMBLES climate models' fidelity in its simulation, International Journal of Climatology 37 (5), 2280-2294.

66. Dandi A Ramu, Suryachadra A Rao, Prasanth A Pillai, M Pradhan, G George, D Nagarguna Rao, S Mahapatra, DS Pai, M Rajeevan (2017): Prediction of seasonal summer monsoon rainfall over homogenous regions of India using dynamical prediction system, Journal of Hydrology, 546, 103-112.

65. DS Pai, Suryachandra A Rao, Soma Senroy, Maheswar Pradhan, Prasanth A Pillai, M Rajeevan(2017): Performance of the operational and experimental long-range forecasts for the 2015 southwest monsoon rainfall, CURRENT SCIENCE 112 (1), 68.

64. Ankur Srivastava, Maheswar Pradhan, BN Goswami, Suryachandra A Rao (2017): Regime shift of Indian summer monsoon rainfall to a persistent arid state: external forcing versus internal variability, Meteorology and Atmospheric Physics, 1-14,

63. Prasanth A Pillai, Suryachandra A Rao, Renu S Das, Kiran Salunke, Ashish Dhakate (2017): Potential predictability and actual skill of Boreal Summer Tropical SST and Indian summer monsoon rainfall in CFSv2-T382: Role of initial SST and teleconnections, Climate Dynamics, 1-18.

62. Ankur Srivastava, Suryachandra A Rao, D Nagarjuna Rao, Gibies George, Maheswar Pradhan (2017): Structure, characteristics and simulation of monsoon low‐pressure systems in CFSv2 coupled model, Geophysical Research: Oceans.

61. Anika Arora, Suryachandra A Rao, R Chattopadhyay, Tanmoy Goswami, Gibies George, CT Sabeerali (2016): Role of Indian Ocean SST variability on the recent global warming hiatusGlobal and Planetary Change 143, 21-30.

60. Rajib Chattopadhyay, Suryachandra A Rao, CT Sabeerali, Gibies George, D Nagarjuna Rao, Ashish Dhakate, Kiran Salunke (2016): Large scale teleconnection patterns of Indian summer monsoon as revealed by CFSv2 retrospective seasonal forecast runs,  International Journal of Climatology 36 (9), 3297-3313.

59. BN Goswami, Suryachandra A Rao, Debasis Sengupta, Soumi Chakravorty (2016): Monsoons to Mixing in the Bay of Bengal Multiscale Air-Sea Interactions and Monsoon Predictability, Oceanography, 29 (2), 18-27.

58. S Abhik, P Mukhopadhyay, M Krishna, Kiran D Salunke, Ashish R Dhakate, Suryachandra A Rao (2016) : Diagnosis of boreal summer intraseasonal oscillation in high resolution NCEP climate forecast system, Climate dynamics46 (9-10), 3287.

57. Siddharth Kumar, Anika Arora, R Chattopadhyay, Anupam Hazra, Suryachandra A Rao, BN Goswami (2016); Seminal role of stratiform clouds in large-scale aggregation of tropical rain in boreal summer monsoon intraseasonal oscillations, Climate Dynamics, 3 (48), 999-1015.

56. Dandi A Ramu, CT Sabeerali, Rajib Chattopadhyay, D Nagarjuna Rao, Gibies George, AR Dhakate, K Salunke, A Srivastava, Suryachandra A Rao (2016): Indian summer monsoon rainfall simulation and prediction skill in the CFSv2 coupled model: Impact of atmospheric horizontal resolution, Journal of Geophysical Research: Atmospheres 121 (5), 2205-2221.

55. Gibies George, D Nagarjuna Rao, CT Sabeerali, Ankur Srivastava, Suryachandra A Rao (2016): Indian summer monsoon prediction and simulation in CFSv2 coupled model, Atmospheric Science Letters, 17 (1), 57-64

54. Anupam Hazra, HS Chaudhari, Suryachandra A Rao, BN Goswami, A Dhakate, S Pokhrel, SK Saha (2015): Impact of revised cloud microphysical scheme in CFSv2 on the simulation of the Indian summer monsoon, Internation Journal of Climatology, 35 (15), 4738-4755

53. Rajib Chattopadhyay, R Phani, CT Sabeerali, AR Dhakate, KD Salunke, S Mahapatra, Suryachandra A Rao, BN Goswami (2015): Influence of extratropical sea‐surface temperature on the Indian summer monsoon: an unexplored source of seasonal predictability, Quarterly Journal of the Royal Meteorological Society, 141 (692), 2760-2775.

52. CT Sabeerali, Suryachandra A Rao, AR Dhakate, K Salunke, BN Goswami (2015): Why ensemble mean projection of south Asian monsoon rainfall by CMIP5 models is not reliable?, Climate Dynamics, 45 (1-2), 161.

51. Bidyut B Goswami, Medha Deshpande, P Mukhopadhyay, Subodh K Saha, Suryachandra A Rao, Raghu Murtugudde, BN Goswami (2015):  Erratum to: Simulation of monsoon intraseasonal variability in NCEP CFSv2 and its role on systematic bias, Climate Dynamics, 44 (3-4), 1171-1171.

50. D Nagarjuna Rao, Gibies George, CT Sabeerali, DA Ramu, Suryachandra Rao (2015): Changing Relationship between the Tropical Easterly Jet and the Indian summer Monsoon Rainfall: Role of Indian Ocean Warming.

49. Bidyut B Goswami, Medha Deshpande, P Mukhopadhyay, Subodh K Saha, Suryachandra A Rao, Raghu Murthugudde, BN Goswami (2014): Simulation of monsoon intraseasonal variability in NCEP CFSv2 and its role on systematic bias, Climate dynamics, 43 (9-10), 2725.

48. CT Sabeerali, Suryachandra A Rao, Gibies George, D Nagarjuna Rao, S Mahapatra, A Kulkarni, Raghu Murtugudde (2014): Modulation of monsoon intraseasonal oscillations in the recent warming period, Journal of Geophysical Research: Atmospheres, 119 (9), 5185-5203.

47. Subodh K Saha, Samir Pokhrel, Hemantkumar S Chaudhari, Ashish Dhakate, Swati Shewale, CT Sabeerali, Kiran Salunke, Anupam Hazra, Somnath Mahapatra, Suryachandra A Rao (2014): Improved simulation of Indian summer monsoon in latest NCEP climate forecast system free run, International Journal of Climatology, 34 (5), 1628-1641

46. JS Chowdary, HS Chaudhari, C Gnanaseelan, Anant Parekh, Suryachandra A Rao, P Sreenivas, S Pokhrel, P Singh (2014): Summer monsoon circulation and precipitation over the tropical Indian Ocean during ENSO in the NCEP climate forecast system, Climate dynamics, 42 (7-8), 1925.

45. Anupam Hazra, Sourav Taraphdar, Madhuparna Halder, S Pokhrel, HS Chaudhari, K Salunke, P Mukhopadhyay, Suryachandra A Rao (2013): Indian summer monsoon drought 2009: role of aerosol and cloud microphysics, Atmospheric Science Letters, 14 (3), 181-186.

44. CT Sabeerali, A Ramu Dandi, Ashish Dhakate, Kiran Salunke, S Mahapatra, Suryachandra A Rao (2013): Simulation of boreal summer intraseasonal oscillations in the latest CMIP5 coupled GCMs, Journal of Geophysical Research: Atmospheres, 118 (10), 4401-4420.

43. Hemantkumar S Chaudhari, Samir Pokhrel, Subodh K Saha, Ashish Dhakate, RK Yadav, Kiran Salunke, Somnath Mahapatra, CT Sabeerali, Suryachandra A Rao (2013), Model biases in long coupled runs of NCEP CFS in the context of Indian summer monsoon, International Journal of Climatology,  33 (5), 1057-1069

42. Suryachandra A Rao, Ashish R Dhakate, Subodh K Saha, Somnath Mahapatra, Hemantkumar S Chaudhari, Samir Pokhrel, Sobhan K Sahu (2012): Why is Indian Ocean warming consistently?, Climatic change, 110, 3, 709-719.

41. Subodh Kumar Saha, Subhadeep Halder, A Suryachandra Rao, BN Goswami (2012): Modulation of ISOs by land-atmosphere feedback and contribution to the interannual variability of Indian summer monsoon, Journal of Geophysical Research, 117, D13, D13101.

40. CT Sabeerali, Suryachandra A Rao, RS Ajayamohan, Raghu Murtugudde (2012): On the relationship between Indian summer monsoon withdrawal and Indo-Pacific SST anomalies before and after 1976/1977 climate shift, Climate dynamics, 39, 3, 841-859.

39. Samir Pokhrel, HS Chaudhari, Subodh K Saha, Ashish Dhakate, RK Yadav, Kiran Salunke, S Mahapatra, Suryachandra A Rao (2012): ENSO, IOD and Indian Summer Monsoon in NCEP climate forecast system, Climate dynamics, 39, 9-10, 2143.

38. R Phani, AK Sahai, A Suryachandra Rao, Jeelani Smd (2012): Profiling and scalability of the high resolution NCEP model for weather and climate simulations, High Performance Computing (HiPC), 2012 19th International Conference on, 1-5.

37. Milind Mujumdar, Kiran Salunke, Suryachandra A Rao, M Ravichandran, BN Goswami (2011): Diurnal cycle induced amplification of sea surface temperature intraseasonal oscillations over the Bay of Bengal in summer monsoon season, IEEE Geoscience and Remote Sensing Letters, 8, 2, 206-210.

36. Suryachandra A Rao, Subodh K Saha, Samir Pokhrel, Damodaran Sundar, Ashish R Dhakate, Somnath Mahapatra, Sabeer Ali, Hemantkumar S Chaudhari, P Shreeram, Suneel Vasimalla, AS Srikanth, RRV Suresh (2011): Modulation of SST, SSS over northern Bay of Bengal on ISO time scale, Journal of Geophysical Research: Oceans, 116, C9.

35. Suryachandra A Rao, Hemantkumar S Chaudhari, Samir Pokhrel, BN Goswami (2010): Unusual central Indian drought of summer monsoon 2008: role of southern tropical Indian ocean warming, Journal of Climate, 23, 19, 5163-5174.

34. P Shree Ram, Suryachandra A Rao, Y Sadhuram (2009): Drifting and meandering of Olive Ridley Sea turtles in the Bay of Bengal: Role of oceanic Rossby waves, Marine Geodesy, 32, 4, 372-378.

33. Suryachandra A Rao, Jing-Jia Luo, Swadhin K Behera, Toshio Yamagata (2009): Generation and termination of Indian Ocean dipole events in 2003, 2006 and 2007, Climate Dynamics, 33, 6, 751-767.

32. K Nisha, Suryachandra A Rao, VV Gopalakrishna, RR Rao, MS Girishkumar, T Pankajakshan, M Ravichandran, S Rajesh, K Girish, Z Johnson, M Anuradha, SSM Gavaskar, V Suneel, SM Krishna (2009): Reduced Near-Surface Thermal Inversions in 2005-06 in the Southeastern Arabian Sea (Lakshadweep Sea)*, Journal of Physical Oceanography, 39, 5, 1184-1199.

31. RS Ajayamohan, Suryachandra A Rao, Jing‐Jia Luo, Toshio Yamagata (2009): Influence of Indian Ocean dipole on boreal summer intraseasonal oscillations in a coupled general circulation model, Journal of Geophysical Research: Atmospheres, 114, D6.

30. I Iskandar 1, Suryachandra A Rao 2, T Tozuka (2009): Chlorophyll‐a bloom along the southern coasts of Java and Sumatra during 2006, International Journal of Remote Sensing, 30, 3, 663-671.

29. I Iskandar 1, Suryachandra A Rao 2, T Tozuka (2009): Chlorophyll‐a bloom along the southern coasts of Java and Sumatra during 2006, International Journal of Remote Sensing, 30, 3, 663-671.

28. PN Vinayachandran, PA Francis, Suryachandra A Rao (2009): Indian Ocean dipole: processes and impacts, Current trends in science, 569-589.

27. RS Ajayamohan, Suryachandra A Rao, Toshio Yamagata (2008): Influence of Indian Ocean dipole on poleward propagation of boreal summer intraseasonal oscillations, Journal of Climate, 21, 21, 5437-5454.

26. RS Ajayamohan, Suryachandra A. Rao (2008): Indian Ocean dipole modulates the number of extreme rainfall events over India in a warming environment, 気象集誌, 86, 1, 245-252.

25. Karumuri Ashok, Swadhin K Behera, Suryachandra A Rao, Hengyi Weng, Toshio Yamagata (2007): El Niño Modoki and its possible teleconnections, Journal of Geophysical Research: Oceans, 112, C11.

24. Hengyi Weng, Karumuri Ashok, Swadhin K Behera, Suryachandra A Rao, Toshio Yamagata (2007): Impacts of recent El Niño Modoki on dry/wet conditions in the Pacific rim during boreal summer, Climate dynamics, 29, 2-3, 113.

23. Suryachandra A Rao, Sebastien Masson, Jing-Jia Luo, Swadhin K Behera, Toshio Yamagata (2007): Termination of Indian Ocean dipole events in a coupled general circulation model, Journal of climate, 20, 13, 3018-3035.

22. Swadhin K Behera, Jing Jia Luo, Sebastien Masson, Suryachandra A Rao, Hirofumi Sakuma, Toshio Yamagata (2006): A CGCM study on the interaction between IOD and ENSO, Journal of climate, 19, 9, 1688-1705.

21. Suryachandra A Rao, Jing Jia Luo, S Masson, SK Behera, T Yamagata (2006): A202 The role of ocean-atmosphere coupling in the Indian Ocean on simulation of the intraseasonal oscillations in a coupled general circulation model, 大会講演予講集, 89, 43.

20. Swadhin K Behera, Jing Jia Luo, S Masson, Suryachandra A Rao, H Sakuma, T Yamagata (2006): A251 The Relationship between IOD and ENSO in a CGCM Simulation, 大会講演予講集, 89, 50.

19. ISKHAQ ISKANDAR, Suryachandra A Rao, TOMOKI TOZUKA, HIDEHARU SASAKI, YUKIO MASUMOTO, TOSHIO YAMAGATA (2006): Influence of the Indian Ocean Dipole on intraseasonal Kelvin waves, Nippon Kaiyo Gakkai Taikai Koen Yoshishu, 2006, 74.

18. SURYACHANDRA A RAO, JJ LUO, S MASSON, SK BEHERA, T YAMAGATA, T YAMAGATA (2006): The role of ocean-atmosphere coupling in the Indian Ocean on simulation of the intraseasonal oscillations in a coupled general circulation model, Nippon Kisho Gakkai Taikai Koen Yokoshu, 89, 43.

17. Suryachandra A Rao, Swadhin K Behera (2005): Subsurface influence on SST in the tropical Indian Ocean: Structure and interannual variability, Dynamics of atmospheres and oceans, 39, 1, 103-135.

16. Suryachandra A Rao, T Yamagata (2004): Abrupt termination of Indian Ocean dipole events in response to intraseasonal disturbances, Geophysical research letters, 31, 19.

15. Toshio Yamagata, Swadhin K Behera, Jing‐Jia Luo, Sebastien Masson, Mark R Jury, Suryachandra A Rao (2004): Coupled ocean‐atmosphere variability in the tropical Indian Ocean, Earth's Climate, 189-211.

14. Toshio Yamagata, Swadhin K Behera, Suryachandra A Rao, Zhaoyong Guan, Karumuri Ashok, Hameed N Saji (2003): Comments on “Dipoles, temperature gradients, and tropical climate anomalies”, Bulletin of the American Meteorological Society, 84, 10, 1418-1422.

13. Swadhin K Behera, Suryachandra A Rao, Hameed N Saji, Toshio Yamagata (2003): Comments on “A cautionary note on the interpretation of EOFs”, Journal of Climate, 16, 7, 1087-1093.

12. Lareef Zubair, Suryachandra A Rao, Toshio Yamagata (2003): Modulation of Sri Lankan Maha rainfall by the Indian Ocean Dipole, Geophysical Research Letters, 30, 2.

11. Suryachandra A Rao, Swadhin K Behera, Yukio Masumoto, Toshio Yamagata (2002): Interannual subsurface variability in the tropical Indian Ocean with a special emphasis on the Indian Ocean dipole, Deep Sea Research Part II: Topical Studies in Oceanography, 49, 7, 1549-1572.

10. Suryachandra A Rao, Vissa V Gopalakrishna, Satish R Shetye, Toshio Yamagata (2002): Why were cool SST anomalies absent in the Bay of Bengal during the 1997 Indian Ocean Dipole Event?, Geophysical Research Letters, 29, 11.

9. Toshio Yamagata, Swadhin K Behera, Suryachandra A Rao, Zhaoyong Guan, Karumuri Ashok, Hameed N Saji (2002): The Indian Ocean dipole: a physical entity, Clivar Exchanges, 24, 7, 2.

8. Suryachandra A Rao, SK BEHERA, T YAMAGATA (2002): On the relative influence of IOD and ENSO on the tropical Indian Ocean., Nippon Kaiyo Gakkai Taikai Koen Yoshishu, 2002, 60.

7. Suryachandra A Rao, Swadhin K Behera, Yukio Masumoto, Toshio Yamagata (2002): Subsurface interannual variability associated with the Indian Ocean Dipole, Clivar Exchanges, 7, 1, 12-17.

6. VSN Murty, MSS Sarma, BP Lambata, VV Gopalakrishna, SM Pednekar, Suryachandra A Rao, AJ Luis, AR Kaka, LVG Rao (2000): Seasonal variability of upper-layer geostrophic transport in the tropical Indian Ocean during 1992–1996 along TOGA-I XBT tracklines, Deep Sea Research Part I: Oceanographic Research Papers, 47, 8, 1569-1582.

5. VV Gopalakrishna, Suryachandra A Rao (2000): Studies on thermal fields in the Bay of Bengal, Indian Geological Congress, Roorkee, India.

4. Suryachandra A Rao, VV GOPALAKRISHNA, SR SHETYE, T YAMAGATA (2000): On the Absence of cool SST anomalies in the Bay of Bengal during the 1997 Dipole Mode Event in the Indian Ocean., Nippon Kaiyo Gakkai Taikai Koen Yoshishu, 2000, 89.

3. Suryachandra A Rao (1998): Rossby waves in the Bay of Bengal: Observations and simulations, Ph Đ) thesis, Andhra University, Visakapatnam.

2. Suryachandra A Rao, Y Sadhuram, V V Gopala Krishna (1995): The value ofC e for the Arabian Sea during summer monsoon, Journal of Earth System Science, 104, 4, 607-611.

1. VV Gopala Krishna, Suryachandra A Rao, MSS Sarma, Shailesh M Pednekar, BP Lambata, LVG Rao, RR Rao (1995): Observed year to year variability in the thermal structure along Madras-Andamans XBT trackline in the Bay of Bengal, WORLD METEOROLOGICAL ORGANIZATION-PUBLICATIONS-WMO TD, 166-170.

Reseach Highlight

Large-scale teleconnection patterns of Indian summer monsoon as revealed by CFSv2 retrospective seasonal forecast runs

The seasonal prediction skill [defined as the linear correlation (cc) between the observed and forecasted rainfall] of the Indian Summer Monsoon Rainfall (ISMR) is evaluated in the Climate Forecast System version 2 (CFSv2) model, at different lead times on the basis of its representation of large scale tropical teleconnection.

View Article Author Link
Students List

 

Name of Student Institution/University Title of Thesis Degree Year
Nagarjuna Rao D.
 
S.P.Pune University Synoptic Variability and the Seasonal Mean Monsoon: Role of Ocean-Atmosphere Coupling Ph.D. 2017

Gibies George

S.P.Pune University Role of Ocean-Atmosphere Coupling in the Seasonal Prediction of South Asia Monsoon Ph.D. 2016
Sabeeerali, C.T. S.P.Pune University Modulation of Monsoon Intra-Seasonal Oscillations by Global Warming Ph.D. 2014
         

 

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