आईआईटीएम
IITM

64. Pokhrel S., Rahaman H., Saha Subodh K., Chaudhari H., Hazra A., Ravichandran M., (2024) Role of Improved Ocean Initial State in the Seasonal Prediction of Indian Summer Monsoon: A Case Study, Ocean-Land-Atmosphere Research, DOI:10.34133/olar.0034

63. Khardekar P., Dutta U., Chaudhari H.S., Bhawar R.L., Hazra A., Pokhrel S., Increase in Indian summer monsoon precipitation as a response to doubled atmospheric CO2: CMIP6 simulations and projections, Theoretical and Applied Climatology, Online, September 2023, DOI:10.1007/s00704-023-04612-z, 1-20

62. Hazra A., Dutta U., Chaudhari H.S., Pokhrel S., Konwar M., Role of mean, variability and teleconnection of clouds behind Indian summer monsoon rainfall, International Journal of Climatology, Online, April 2023, DOI:10.1002/joc.8076, 1-20

61. Debnath S., Jena C., Ghude S.D., Kumar Rajesh, Govardhan G., Gunwani P., Saha Subodh K., Hazra A., Pokhrel S., Simulation of Indian Summer Monsoon Rainfall (ISMR) with fully coupled regional chemistry transport model: A case study for 2017, Atmospheric Environment, 268: 118785, January 2022, DOI:10.1016/j.atmosenv.2021.118785, 1-14

60. Mallick C., Hazra A., Saha Subodh K., Chaudhari H.S., Pokhrel S., Konwar M., Dutta U., Mohan G.M., Vani K.G., Seasonal predictability of lightning over the global hotspot regions, Geophysical Research Letters, 49: e2021GL096489, January 2022, DOI:10.1029/2021GL096489, 1-11

59. Dutta U., Hazra A., Chaudhari H.S., Saha Subodh K., Pokhrel S., Shiu C.-J., Chen J.-P., Role of microphysics and convective autoconversion for the better simulation of tropical intraseasonal oscillations (MISO and MJO), Journal of Advances in Modeling Earth Systems, 13: e2021MS002540, October 2021, DOI:10.1029/2021MS002540, 1-32

58. Debnath S., Jena C., Ghude S.D., Kumar Rajesh, Govardhan G., Gunwani P., Saha Subodh K., Hazra A., Pokhrel S., Simulation of Indian Summer Monsoon Rainfall (ISMR) with fully coupled regional chemistry transport model: A case study for 2017, Atmospheric Environment, Online, October 2021, DOI:10.1016/j.atmosenv.2021.118785, 1-14

57. Mohan G.M., Vani K.G., Hazra A., Mallick C., Chaudhari H.S., Pokhrel S., Pawar S.D., Konwar M., Saha Subodh K., Das S.K., Deshpande S., Ghude S., Barth M.C., Rao Suryachandra A., Nanjundiah R.S., Rajeevan M. , Evaluating different lightning parameterization schemes to simulate lightning flash counts over Maharashtra, India, Atmospheric Research, 255: 105532, June 2021, DOI:10.1016/j.atmosres.2021.105532, 1-22

56. Saha, S. K., Konwar, M., Pokhrel, S., Hazra, A., Chaudhari, H. S., & Rai, A. (2021). Interplay between subseasonal rainfall and global predictors in modulating interannual to multidecadal predictability of the ISMR, Geophysical Research Letters, 48: e2020GL091458, January 2021, DOI: 10.1029/2020GL091458, 1-11

55. Dutta U., Chaudhari H.S., Hazra A., Pokhrel S., Saha Subodh Kumar, Veeranjaneyulu C., Role of convective and microphysical processes on the simulation of monsoon intraseasonal oscillation, Climate Dynamics, 55, November 2020, DOI:10.1007/s00382-020-05387-z, 2377–2403

54. Saha S.K., Hazra A., Pokhrel S., Chaudhari H.S., Rai A., Sujith K., Rahaman H., Goswami B.N., Reply to comment by E. T. Swenson, D. Das, and J. Shukla on "Unraveling the mystery of indian summer monsoon prediction: Improved Estimate of predictability limit", Journal of Geophysical Research: Atmospheres, 125: e2020JD033242, November 2020, DOI:0.1029/2020JD033242, 1-9

53. Pokhrel S., Dutta U., Rahaman H., Chaudhari H.S., Hazra A., Saha Subodh K., Veeranjaneyulu C., Evaluation of different heat flux products over the Tropical Indian Ocean, Earth and Space Science, 7: e2019EA000988, June 2020, DOI:10.1029/2019EA000988, 1-22

52. Samir Pokhrel, Ushnanshu Dutta, Hasibur Rahaman, Hemantkumar Chaudhari, Anupam Hazra, Subodh Kumar Saha and Chinta Veeranjaneyulu, Evaluation of different heat flux products over the Tropical Indian Ocean, Earth and Space Science, Online, January 2020, DOI: https://doi.org/10.1029/2019EA000988

51. Hazra A., Chaudhari H.S., Saha S.K., Pokhrel S., Dutta U., Goswami B.N., Role of cloud microphysics in improved simulation of the Asian monsoon quasi-biweekly mode (QBM), Climate Dynamics, 54, January 2020, DOI:10.1007/s00382-019-05015-5, 599–614

50. Dwivedi S, Uma R, Lakshmi Kumar TV, Narayanan MS, Pokhrel S, Kripalani RH, New spatial and temporal indices of Indian summer monsoon rainfall, Theoretical and Applied Climatology, 135, February 2019, DOI:10.1007/s00704-018-2428-2, 979-990

49. Chaudhari H.S., Hazra A., Pokhrel S., Saha Subodh Kumar, Taluri S.S., 2019: Simulation of extreme Indian summer monsoon years in Coupled Model Intercomparison Project Phase 5 models Role of cloud processes, International Journal of Climatology, 39, DOI:10.1002/joc.5851, 901-920

48. Sujith K., S. K. Saha, A. Rai, Pokhrel S., H. S. Chaudhari, A. Hazra, R. Murtugudde, B. N. Goswami, Effects of a multilayer snow scheme on the global teleconnections of the Indian summer monsoon, Quarterly Journal of Royal Meteorological Society, 145, 2019, DOI:10.1002/qj.3480, 1102-1117

47. Saha S. K., A. Hazra, Pokhrel S., H. S. Chaudhari, K. Sujith, A. Rai, H. Rahaman, B. N. Goswami, Unraveling the mystery of Indian Summer Monsoon prediction: Improved estimate of predictability limit, Journal of Geophysical Research, 124, 2019, DOI:10.1029/2018JD030082, 1-13

46. Rao A.S., Goswami B.N., Sahai A.K., Rajagopal E.N., Mukhopadhyay P., Rajeevan M., Nayak S., Rathore L.S., Shenoi S.S.C., Ramesh K.J., Nanjundiah R., Ravichandran M., Mitra A.K., Pai D.S., Bhowmik S.K.R., Hazra A., Mahapatra S., Saha S.K., Chaudhari H.S., Joseph S., Pentakota S, Pokhrel S., and co-authors, Monsoon Mission: A targeted activity to improve monsoon prediction across scales. Bulletin of the American Meteorological Society, 2019, doi.10.1175/BAMS-D-17-0330.1

45. Chakravarty K, Pokhrel S, Nair AKM, Kalapureddy MCR, Deshpande S, Das S, Pandithurai G and Goswami BN (2018) Unraveling of Cloud types during phases of monsoon intraseasonal oscillations by a Ka-band Doppler Weather Radar, Atmospheric Science Letters,

44. Pokhrel S, Hazra A, Saha SH, Chaudhari HS, Paulose F, Krishna K, Krishna PM and      Rao SA (2018) Hindcast skill improvement in Climate Forecast System (CFSv2) using modified cloud scheme, International Journal of Climatology, DOI: 10.1002/joc.5478

43. Pokhrel S, Hazra A, Saha Subodh K, Chaudhari HS, Metya A, Ghude SD, Konwar M (2018) Contrast in monsoon precipitation over oceanic region of north Bay of Bengal and east equatorial Indian Ocean, International Journal of Climatology, DOI: 10.1002/joc.5433

42. Chaudhari HS, Hazra A, Pokhrel S, Chakrabarty C, Saha SK, Sreenivas P (2018) SST and OLR relationship during Indian summer monsoon: a coupled climate modeling perspective, Meteorology and Atmospheric Physics,  130, 211-215, DOI: 10.1007/s00703-017-0514-0.

41. Hazra A, Chaudhari HS, Saha SK, Pokhrel S and Goswami BN (2017), Progress towards achieving the challenge of Indian Summer Monsoon climate simulation in a coupled ocean-atmosphere model,  Journal of Advances in Modeling Earth Systems, DOI:10.1002/2017MS000966, 1-23

40. Sujith K, Saha SK, Pokhrel S, Hazra A, Chaudhari HS (2017), Dominant modes of recycled monsoon rainfall over India, Journal of Hydrometeorology, 18, DOI:10.1175/JHM-D-17-0082.1, 2647-2657

39. Saha SK, Sujith K, Pokhrel S, Chaudhari HS, Hazra A (2017) Effects of multilayer snow scheme on the simulation of snow: Offline Noah and coupled with NCEP CFSv2, Journal of Advances in Modeling Earth Systems, 9, doi:10.1002/2016MS000845.

38. Hazra A, Chaudhari HS, Saha SK, Pokhrel S (2017) Effect of cloud microphysics on Indian summer monsoon precipitating clouds: A coupled climate modeling study, Journal of Geophysical Research, 122, doi:10.1002/2016JD026106.

37. Saha SK, Pokhrel S, Salunke K, Dhakate A, Chaudhari HS, Rahaman SH, Sujith K, Hazra A, Sikka DR (2016) Potential Predictability of Indian Summer Monsoon Rainfall in NCEP CFSv2, Journal of Advances in Modeling Earth Systems, 8, 96-120, DOI:10.1002/2015MS000542.

36. Saha SK, Sujith K, Pokhrel S, Chaudhari HS, Hazra A (2016) Predictability of Global Monsoon Rainfall in NCEP CFSv2, Climate Dynamics, 47, 1693-1715, DOI: 10.1007/s00382-015-2928-z.

35. Chaudhari HS, Pokhrel S, Kulkarni A, Hazra A, Saha SK (2016) Clouds–SST relationship and interannual variability modes of Indian summer monsoon in the context of clouds and SSTs: observational and modelling aspects, International Journal of Climatology, 36, 4723-4740, DOI: 10.1002/joc.4664.

34. Pokhrel S, Saha SK, Dhakate A, Chaudhari HS, Salunke K, Rahman SH, Hazra A, Sujith K, Sikka DR (2016) Seasonal prediction of Indian summer monsoon rainfall in NCEP CFSv2: forecast and predictability error, Climate Dynamics, 46, 2305-2326, DOI:10.1007/s00382-015-2703-1.

33. Chaudhari HS, Hazra A, Saha SK, Dhakate A, Pokhrel S (2016) Indian Summer Monsoon simulations with CFSv2: A microphysics perspective, Theoretical and Applied Climatology, 125, 253-269, DOI:10.1007/s00704-015-1515-x.

32. Hazra A, Chaudhari HS, Pokhrel S, Saha SK (2016) Indian summer monsoon precipitating clouds: role of microphysical process rates,  Climate Dynamics, 46, 2551-2571, DOI 10.1007/s00382-015-2717-8.

31. Chaudhari HS, Pokhrel S, Rahman SH, Dhakate A, Saha SK, Pentakota S, Gairola RM (2016) Influence of upper ocean on Indian summer monsoon rainfall : Studies by observation and NCEP Climate Forecast System (CFSv2), Theoretical and Applied Climatology, 125, 413-426, DOI:10.1007/s00704-015-1521-z.

30. Ranalkar M, Chaudhari HS, Hazra A, Sawaisarje GK, Pokhrel S (2016) Dynamical features of incessant heavy rainfall event of June 2013 over Uttarakhand, India, Natural Hazards. 80, 1579-1601, DOI: 10.1007/s11069-015-2040-z.

29. Rai A, Saha SK, Pokhrel S, Sujith K, Halder S (2015) Influence of pre-onset land-atmospheric conditions on the Indian summer monsoon rainfall variability, Journal of Geophysical Research, 120, 4551-4563. DOI:10.1002/2015JD023159.

28. Hazra A, Chaudhari HS, Rao SA, Goswami BN, Dhakate A, Pokhrel S, Saha SK  (2015) Impact of revised cloud microphysical scheme in CFSv2 on the simulation of the Indian Summer Monsoon, International Journal of Climatology, 35, 4738-4755, DOI:10.1002/joc.4320.

27. Hazra A, Chaudhari HS, Pokhrel S (2015) Improvement in convective and stratiform rain fractions over Indian region with introduction of new ice nucleation parameterization in ECHAM5. Theoretical and Applied Climatology, 120:173–182

26. Chaudhari, H. S., S. Pokhrel, S. K. Saha, A. Dhakate and A. Hazra (2015), Improved depiction of Indian Summer Monsoon in latest high resolution NCEP Climate Forecast System Reanalysis, International Journal of Climatology, 35, 3102-3119 , DOI:10.1002/joc.4196.

25. Ghude SD, Kulkarni PS, Chate DM, Biswas M, Pokhrel S and Boynard A (2014) Air Pollution, Air Quality and Climate Change (Editorial), Advances in Meteorology, DOI:10.1155/2014/983426, 1-3

24. Chowdary JS, Chaudhari HS, Gnanaseelan C, Parekh A, Rao SA, Sreenivas P, Pokhrel S and Singh P (2014) Summer monsoon circulation and precipitation over the tropical Indian Ocean during ENSO in the NCEP climate forecast system, Climate Dynamics, 42:1925:1947, DOI: 10.1007/s00382-013-1826-5.

23. Pati S, Dash MK, Mukherjee CK, Dash B and Pokhrel S (2014) Assessment of water quality using multivariate statistical techniques in the coastal region of Visakhapatnam, India, Environmental Monitoring and Assessment, DOI:10.1007/s10661-014-3862-y, 1-17

22. Saha, S. K., S. Pokhrel, H. S Chaudhari, A. Dhakate, S. Shewale, C. T. Sabeerali, K. Salunke, A. Hazra, S. Mahapatra, A. S. Rao (2014), Improved simulation of Indian summer monsoon in latest version of NCEP Climate Forecast System free run, International Journal of Climatology, 34, 1628-1641,DOI:10.1002/joc.3791.

21. Hazra A, Taraphdar S, Halder M, Pokhrel S, Chaudhari HS, Salunke K, Mukhopadhyay P and Rao SA (2013) Indian summer monsoon drought 2009: role of aerosol and cloud microphysics, Atmospheric Science Letters, DOI:10.1002/asl.437

20. Chaudhari H.S.,  S. Pokhrel,  S. Mohanty,  S. K. Saha (2013), Seasonal prediction of Indian summer monsoon in NCEP coupled and uncoupled model,   Theoretical and Applied Climatology, 114,  459-477 , DOI:10.1007/s00704-013-0854-8.

19. Saha, S. K., S. Pokhrel, H. S. Chaudhari (2013), Influence of Eurasian snow on Indian summer monsoon in NCEP CFSv2 free run, Climate Dynamics, 41, 1801-1815, DOI 10.1007/s00382-012-1617-4 .

18.  Pokhrel S., A. Dhakate, H. S. Chaudhari, S. K. Saha (2013), Status of NCEP CFS vis-a-vis IPCC AR4 models for the simulation of Indian summer monsoon, Theoretical and Applied Climatology, 111, 65-78, DOI 10.1007/s00704-012-0652-8, 1-14.

17. Chaudhari H. S., S. Pokhrel, S. K. Saha, A. Dhakate, R. K. Yadav, K. Salunke, S. Mahapatra, C. T. Sabeerali, A. S. Rao (2013), Model biases in long coupled runs of NCEP CFS in the context of Indian summer monsoon, International Journal of Climatology, 33, 1057-1069,  DOI: 10.1002/joc.3489.

16. Pokhrel S and Sikka DR (2013) Variability of the TRMM-PR Total and Convective and Stratiform Rain Fractions Over the IndianTAX Region During the Summer Monsoon, Climate Dynamics, 41 21-44, DOI: 10.1007/s00382-012-1502-1

15. Pokhrel, S., H. Rahaman, A. Parekh, S. K. Saha, A. Dhakate, H.  S. Chaudhari, R. M. Gairola (2012), Evaporation-precipitation variability over Indian  Ocean and its assessment in NCEP Climate Forecast System (CFSv2), Climate Dynamics, 39, 2585-2608, DOI 10.1007/s00382-012-1542-6.

14. Pokhrel S., H. S. Chaudhari, S. K. Saha, A. Dhakate, R. K. Yadav, K. Salunke, S. Mahapatra, A. S. Rao (2012), ENSO, IOD and Indian summer monsoon in NCEP climate forecast system, Climate Dynamics, 39, 2143-2165,  DOI 10.1007/s00382-012-1349-5.

13. Rao, A. S., A. R. Dhakate , S. K. Saha, S. Mahapatra, H. S. Chaudhari, S. Pokhrel, S. K. Sahu  (2012), Why is Indian Ocean warming consistently? Climatic Change, 110, 709-719,  DOI 10.1007/s10584-011-0121-x.

12. Prakash S, Mahesh C, Gairola RM and Pokhrel S (2011) Surface Freshwater Flux Estimation Using TRMM Measurements over the Tropical Oceans, Atmospheric and Climate Sciences,  1, 225-234, doi:10.4236/acs.2011.14025.

11. Rao, A. S., S. K. Saha, S. Pokhrel, D. Sundar, A. Dhakate, S. Mahapatra, C. T. Sabeerali, H. Chaudhari, P. Shreeram, S. Vasimalla, A. S. Srikanth, and R.V.Suresh Reddy (2011), Modulation of SST, SSS over Northern Bay of Bengal on ISO time scale, Journal of Geophysical Research  (Ocean), 116, C09026, doi:10.1029/2010JC006804.

10. Ghude S, Kulkarni S, Kulkarni P, Kanawade V, Fadnavis S, Pokhrel S, Jena C, Beig G and Bortoli D (2011) Anomalous low tropospheric column ozone over Eastern India during the severe drought event of monsoon 2002: a case study. Environmental Science and Pollution Research 18:1-14 doi: 10.1007/s11356-011-0506-4.

9. Krishnan R, Ayantika DC, Kumar V and Pokhrel S (2011) Long-lived monsoon depressions of 2006 and their linkage with the Indian Ocean Dipole, International Journal of Climatology, 31, 1334-1352, DOI: 10.1002/joc.2156, 1-19

8. Rao SA, Chaudhari HS, Pokhrel S and Goswami BN (2010) Unusual central Indian drought of summer monsoon - 2008: Role of Southern Tropical Indian Ocean warming, Journal of Climate, 23, 5163-517.

7. Gairola RM, Pokhrel S, Varma AK and Agarwal VK (2006) Multiparameter Microwave Retrieval Algorithms: Performance of Neural Networks, Current-Science, 91(10), 1382 – 1387.

6. Varma AK, Pokhrel S, Gairola RM and Agarwal VK (2006) Study of geophysical parameters associated with the Orissa super cyclone using active and passive microwave remote sensing measurements, Int. Jour. of Remote Sensing, 27(18), 3753 – 3765.  

5. Gairola RM, Varma AK, Pokhrel S and Agarwal VK (2005) A combine passive-active microwave retrieval of quantitative rainfall from TOPEX/Poseidon altimeter and TMR, Int. Jour. of Remote Sensing, 26(8), 1729 – 1753. 

4. Gairola RM, Varma AK, Pokhrel S, Gohil BS and Agarwal VK (2004) Sensitivity of Brightness Temperatures to the Oceanic Surface Roughness and Rainfall for TRMM and IRS-P4-MSMR Radiometric Channels over the Indian Ocean, Indian Jour. of Radio & Space Physics, 33, 61-70.

3. Pokhrel S, Varma AK, Gairola RM and Agarwal VK (2003) Distribution and intraseasonal variability of rain rate over Indian Oceanic region from IRSP4 MSMR, Journal of Geophysical Research, 108(C10), doi: 10.1029/2003JC001886.

2. Varma AK, Pokhrel S, Gairola RM and Agarwal VK (2003) An Empirical Algorithm for Cloud Liquid Water from MSMR and its Utilization in Rain Identification, IEEE Transaction on Geosciences and Remote Sensing, 41(8), 1853-1858.2

1.  Varma AK, Gairola RM, Pokhrel S, Gohil BS, Mathur AK and Agarwal VK (2002) Rain Rate Measurements over Global Oceans from IRSP4 MSMR, Proceedings of Indian Academy of Sciences – Earth and Planetary Sciences, 111 (3), 257-266.

1. Written a chapter entitled “Interaction of EMR with atmosphere” under the major heading  “Electromagnetic Remote Sensing” for the School of Sciences of IGNOU for their  P.G.Certificate Programme on 'Geoinformatics'