Climatology of Energetics of Cyclones over Indian Seas

Authors

  • Somenath Dutta India Meteorological Department, India
  • Geena Sandhu Indian Navy
  • Sanjay G Narkhedkar Indian Institute of Tropical Meteorology
  • Sunitha Devi India Meteorological Department

DOI:

https://doi.org/10.30564/jasr.v2i1.266

Abstract

The study discusses the energetic aspects of tropical cyclones formed over Arabian Sea (AS) and Bay of Bengal (BOB) during the period from 1991 till 2013 and aims at bringing out climatology of the energetics of tropical cyclones over Indian Seas. Total 88 cyclones that developed over the Indian Seas during the recent decade of 1991-2013 have been studied. These intense systems are categorized on the basis of their formation region and season of formation. It is seen that during the study period, the frequency of formation of cyclones over BOB is twice that over AS which is consistent with the climatology of the regions. Further, it is noticed that over both the regions, they are more frequently formed in the post monsoon period compared to pre monsoon. The trend analysis of the frequency of cyclones forming over both basins, season wise shows that the overall trend for both basins is of just decreasing type. However, for Arabian Sea; the decreasing trend is more apparent in the post monsoon season, whereas in the case of the Bay of Bengal the decreasing trend is more evident in the pre monsoon season. Various energy terms, their generation and conversion terms have been computed using NCEP/NCAR reanalysis data. Day to day quantitative analysis of these parameters is studied critically during various stages of the cyclones. The composites of these categorized systems are formed and studied. The formative, intensification and dissipation stages showed variations in their energy terms.

Keywords:

Energetics; Cyclone; Climatology; North Indian seas

References

[1] Akter N. and Tsuboki K., 2014, "Role of synoptic-scale forcing in cyclogenesis over the Bay of Bengal, Climat Dynamics, 43:2651-2662. DOI: https://doi.org/10.1007/s00382-014-2077-9

[2] Devi, Sunitha S, Dutta, Somenath and Prasad, K , 2014,“Energetics of Super cyclone ‘Gonu’ and Very Severe Cyclonic Strom ‘SIDR’”, Mausam, 65:37-48.

[3] Dutta, Somenath, Narkhedkar, S.G., Sikka, D.R. and Devi, S., (2011), “A Dynamical Comparison between two recent drought southwest monsoon seasons 2002 and 2009 over India”, Mausam, 62:133-144.

[4] Dutta, Somenath, Narkhedkar S.G., Devi, S, Sikka, D.R.,(2012),“A composite energetics study for contrasting south west monsoon years in the recent decade”, Atmósfera 25:109-126.

[5] ESCAP-WMO Panel on Tropical Cyclone Feb, (2013), "The 40th session of the Panel on Tropical Cyclones, Colombo, Sri Lanka from 25 February to 1 March 2013".

[6] Joint Typhoon Warning Center (JTWC), (1974), "Annual Typhoon Report". U.S. Fleet Weather Central, Joint Typhoon Warning Center, COMNAVMARIANAS, Box 17, FPO San Francisco, CA, 96630, U.S., 116 pp.

[7] Karl, Hoarau, Ludovic, Chalogne, (2010), “A climatology of the intense tropical cyclones over the past three decades from 1990-2008”, Accepted as a chapter for: “Indian Ocean Tropical Cyclones and Climate Change”, Part 1, pp 3-7, published by Springer Netherlands.

[8] Holton, James R., (2004), “An Introduction to Dynamic Meteorology”, Volume 1, published by Academic Press.

[9] Keshavamurty R.N. and S. T. Awade, (1970), "On the maintenance of the mean monsoon trough over north India", Mon. Wea. Rev. 98: 315-320.

[10] Krishnamurti T. N. and Ramanathan Y., (1982), "Sensitivity of monsoon onset of differential Heating". J. Atmos. Sci. 39:1290-1306.

[11] Krishnamurti T. N., (1985), "Summer monsoon experiment-A review". Mon. Wea. Rev. 113: 1590-1626.

[12] Krishnamurti T.N. and N. Surgi, (1987), "Observational aspects of summer monsoon, Monsoon Meteorology", Edited by C.P. Chang and T. N. Krishnamurti, Oxford University press,3-25.

[13] Krishnamurti, T.N and Bounoua, L, (2000), “An Introduction to Numerical Weather Prediction Techniques”, CRC press Inc, pp. 1-286.

[14] Krishnamurti T. N., Martin A., Krishnamurti R., Simon A, Thomas A., Vinay Kumar (2013), "Impacts of enhanced CCN on the organization of convection and recent reduced counts of monsoon depressions", Climate Dynamics, 41:117–134.

[15] Landsea, C. W., (1993), "A climatology of intense (or major) Atlantic hurricanes. Mon. Wea. Rev., 121:1703-1713.

[16] Landsea, C. W., (1997a), Comments on “Will greenhouse gas-induced warming over the next 50 years lead to higher frequency and greater internsity of hurricanes?”, Tellus, 49A: 622-623.

[17] Landsea, C. W., (2000), “El Niño-Southern Oscillation and the seasonal predictability of tropical cyclones”. Accepted as a chapter for El Niño and Southern Oscillation : “Multiscale Variability and Global and Regional Impacts”, edited by H. F. Diaz and V. Markgraf :149-181.

[18] Munshi, Jamal, (2015), “Tropical Cyclones in the Indian Ocean 1998-2014”, uploaded in the Social Science Research Network, pp. 9

[19] Neumann, C. J., (1993), Global Overview, “Global Guide to Tropical Cyclone Forecasting”, WMO/TC-No. 560, Report No. TCP-31, World Meteorological Organization, Geneva, 1-1 - 1-43

[20] Raju P. V. S., U. C. Mohanty and R. Batla, (2002), "The contrasting features of the Asian summer monsoon during surplus and deficient rainfall over India". International journal of climatology, 22:1897-1914.

[21] Rao K.V. and S. Rajamani, (1972), "Study of heat sources and sinks and the generation of available potential energy in the Indian region during Southwest monsoon". Mon. Wea. Rev, 100:383-388.

[22] Rao P. L. S., (2006), "The kinetic energy budget of Asian summer monson", Theoretical and Applied Climatology, 84:191-205.

[23] Rao P. L. S. and U. C. Mohanty, (2007), "Temporal characteristics of the Indian southwest Monsoon". Natural hazards, 42:335-344.

[24] Yanai M., C. F. Li and Z, S, Song, (1992), "Seasonal heating of the Tibetan Plateau and its effects on the evolution of the Asian Summer monsoon". J. Meteor. Soc. Jap., 70:319-351.

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How to Cite

Dutta, S., Sandhu, G., Narkhedkar, S. G., & Devi, S. (2019). Climatology of Energetics of Cyclones over Indian Seas. Journal of Atmospheric Science Research, 2(1), 1–9. https://doi.org/10.30564/jasr.v2i1.266

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