Abstract
A diagnostic investigation of extreme rainfall episodes associated with western disturbances that occurred during winter in recent years between 2009 and 2018 over North India is carried out using data from a suite of surface observations and reanalysis datasets. Observations indicate the source of the moisture flux as advection from the adjoining Arabian Sea. The dynamical and thermodynamical contributions are evaluated based on atmospheric instability analysis. The rise and fall of the isotherm level in the upper and lower troposphere indicates warming and cooling at the respective levels. The increase in horizontal temperature gradient and vertical wind shear demonstrates the role of baroclinic instability in the development of western disturbances. The equivalent potential temperature and the temperature profile indicate that the atmosphere is conditionally stable in the lower and mid-tropospheric layer. Increase in convective available potential energy explains convective precipitation only over certain regions, whereas lowering of lifting condensation level could be associated with all forms of precipitation events related to western disturbances. Significant precipitation events that occur under the influence of western disturbances could be associated with a rise in total precipitable water to beyond 20 g kg−1 and rise in specific humidity in the lower troposphere.
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References
Babu, C. A. (1996). Evaluation of thermodynamic parameters of the atmosphere by a Fortran program. Computers & Geosciences, 22(8), 877–881. https://doi.org/10.1016/S0098-3004(96)00044-1 ISSN 0098-3004.
Barbero, R., Abatzoglou, J. T., & Fowler, H. J. (2019). Contribution of large-scale midlatitude disturbances to hourly precipitation extremes in the United States. Climate Dynamics, 52, 197–208. https://doi.org/10.1007/s00382-018-4123-5
Bluestein, H. B. (1993). Synoptic-dynamic meteorology in midlatitudes. Volume II. Observations and theory of weather systems. Book, N. p., Web. OSTI ID: 6227041.
Cannon, F., Carvalho, L. M. V., Jones, C., et al. (2015). Multi-annual variations in Winter Westerly disturbance activity affecting the Himalaya. Climate Dynamics, 44, 441–455. https://doi.org/10.1007/s00382-014-2248-8
Dacre, H. F., Hawcroft, M. K., Stringer, M. A., & Hodges, K. I. (2012). An extratropical cyclone atlas: A tool for illustrating cyclone structure and evolution characteristics. Bulletin of the American Meteorological Society, 93, 1497–1502. https://doi.org/10.1175/BAMS-D-11-00164.1
Dimri, A. P. (2006). Surface and upper air fields during extreme winter precipitation over the Western Himalayas. Pure and Applied Geophysics, 163, 1679–1698. https://doi.org/10.1007/s00024-006-0092-4
Dimri, A. P. (2012). Wintertime land surface characteristics in climatic simulations over the Western Himalayas. Journal of Earth System Science, 121, 329–344. https://doi.org/10.1007/s12040-012-0166-x
Dimri, A. P., & Dash, S. K. (2012). Wintertime climatic trends in the western Himalayas. Climatic Change, 111(3–4), 775–800. https://doi.org/10.1007/s10584-011-0201-y
Dimri, A. P. (2013). Intraseasonal oscillation associated with the Indian Winter monsoon. Journal of Geophysical Research: Atmospheres, 118, 1189–1198. https://doi.org/10.1002/jgrd.50144
Dimri, A. P., Niyogi, D., Barros, A. P., Ridley, J., Mohanty, U. C., Yasunari, T., & Sikka, D. R. (2015). Western Disturbances: A review. Reviews of Geophysics, 53, 225–246. https://doi.org/10.1002/2014RG000460
Emori, S., & Brown, S. J. (2005). Dynamic and thermodynamic changes in mean and extreme precipitation under changed climate. Geophysical Research Letters, 32, L17706. https://doi.org/10.1029/2005GL023272
Gyakum, J. R., & Cai, M. (1990). An Observational Study of Strong Vertical Wind Shear over North America during the 1983/84 Cold Season. Journal of Applied Meteorology, 29, 902–915. https://doi.org/10.1175/1520-0450(1990)029%3c0902:AOSOSV%3e2.0.CO;2
Hirschberg, P. A., & Fritsch, J. M. (1991). Tropopause Undulations and the development of extratropical cyclones. Part I. Overview and observations from a cyclone event. Monthly Weather Review. https://doi.org/10.1175/1520-0493(1991)119<0496:TUATDO>2.0.CO;2
Holton, J. R. (2004). An introduction to dynamic meteorology. Elsevier Academic Press. ISBN: 0-12-354015-1.
Hunt, K. M. R., Curio, J., Turner, A. G., & Schiemann, R. (2018). Subtropical Westerly jet influence on occurrence of Western disturbances and Tibetan Plateau vortices. Geophysical Research Letters, 45, 8629–8636. https://doi.org/10.1029/2018GL077734
Hunt, K. M. R., Turner, A. G., & Shaffrey, L. C. (2017). The evolution, seasonality, and impacts of Western disturbances. Quarterly Journal of the Royal Meteorological Society, 144(710), 278–290. https://doi.org/10.1002/qj.3200
Hunt, K. M. R., Turner, A. G., & Shaffrey, L. C. (2019). Extreme daily rainfall in Pakistan and North India: Scale-interactions, mechanisms, and precursors. Monthly Weather Review. https://doi.org/10.1175/MWR-D-17-0258
Jensen, M. P., & Del Genio, A. D. (2006). Factors limiting convective cloud-top height at the ARM Nauru Island climate research facility. Journal of Climate, 19, 2105–2117. https://doi.org/10.1175/JCLI3722.1
Kalnay, E., et al. (1996). The NCEP/NCAR 40-Year Reanalysis Project. Bulletin of the American Meteorological Society, 77, 437–472. https://doi.org/10.1175/1520-0477(1996)077%3c0437:TNYRP%3e2.0.CO;2
Kalsi, S. R. (1980). On some aspects of interaction between middle latitude westerlies and monsoon circulation. Mausam, 31(2), 305–308. ISSN 501573; IND; DA. 1980; BIBL. 7 REF.
Kalsi, S. R., & Halder, S. R. (1992). Satellite observations of interaction between tropics and mid-latitudes. Mausam, 43(1), 59–64.
Kim, D., Ho, C.-H., Park, D.-S.R., & Kim, J. (2019). Influence of vertical wind shear on wind- and rainfall areas of tropical cyclones making landfall over South Korea. PLoS ONE, 14(1), e0209885. https://doi.org/10.1371/journal.pone.0209885
Kingsmill, D. E., & Houze, R. A., Jr. (1999). Thermodynamic characteristics of air flowing into and out of precipitating convection over the West Pacific warm pool. Quarterly Journal of the Royal Meteorological Society, 125, 1209–1229. https://doi.org/10.1002/qj.1999.49712555606
Kollias, P., Miller, M. A., Johnson, K. L., Jensen, M. P., & Troyan, D. T. (2009). Cloud, thermodynamic, and precipitation observations in West Africa during 2006. Journal of Geophysics Research, 114, D00E08. https://doi.org/10.1029/2008JD010641
Krichak, S. O., Barkan, J., Breitgand, J. S., et al. (2015). The role of the export of tropical moisture into midlatitudes for extreme precipitation events in the Mediterranean region. Theoretical and Applied Climatology, 121, 499–515. https://doi.org/10.1007/s00704-014-1244-6
Krishnamurti, T. N. (1961). On the role of the subtropical jet stream of Winter in the atmospheric general circulation. Journal of Meteorology, 18, 657–670. https://doi.org/10.1175/1520-0469(1961)018%3c0657:OTROTS%3e2.0.CO;2
Krishnan, G., Rao, M. S., & Kumar, B. (2012). Identification of Sources of Atmospheric Vapour using Isotopic Signature of Air Moisture at Roorkee, Uttarakhand, India. In: Extended extract: International conference on "Opportunities and Challenges in Monsoon Prediction in a Changing Climate" (OCHAMP-2012), Pune, India, pp. 21–25 Feb 2012.
Krishnan, R., Sabin, T. P., Madhura, R. K., et al. (2019). Non-monsoonal precipitation response over the Western Himalayas to climate change. Climate Dynamics, 52, 4091–4109. https://doi.org/10.1007/s00382-018-4357-2
Lang, T. J., & Barros, A. P. (2004). Winter Storms in Western Himalayas. Journal of the Meteorological Society of Japan, 82(3), 829–844.
Lehmann, J., Coumou, D., Frieler, K., Eliseev, V. A., & Levermann, A. (2014). Future changes in extratropical storm tracks and baroclinicity under climate change. Environmental Research Letters, 9, 8.
Lim, E. P., & Simmonds, I. (2009). Effect of tropospheric temperature change on the zonal mean circulation and SH Winter extratropical cyclones. Climate Dynamics, 33, 19–32. https://doi.org/10.1007/s00382-008-0444-0
Lin, D., Huang, W., Yang, Z., He, X., Qiu, T., Wang, B., & Wright, J. S. (2019). Impacts of Wintertime extratropical cyclones on temperature and precipitation over northEastern China during 1979–2016. Journal of Geophysical Research: Atmospheres, 124, 1514–1536. https://doi.org/10.1029/2018JD029174
Midhuna, T. M., Kumar, P., & Dimri, A. P. (2020). A new Western Disturbance Index for the Indian Winter monsoon. Journal of Earth System Science, 129, 59. https://doi.org/10.1007/s12040-019-1324-1
Monkam, D. (2002). Convective available potential energy (CAPE) in Northern Africa and tropical Atlantic and study of its connections with rainfall in Central and West Africa during Summer 1985. Atmospheric Research, 62(1–2), 125–147. https://doi.org/10.1016/S0169-8095(02)00006-6.
Mull, S., & Desai, B. N. (1947). The origin and structure of the Winter depression of NorthWest India (Technical note, No. 25). India: India Meteorological Department.
Murugavel, P., Pawar, S. D., & Gopalakrishnan, V. (2012). Trends of Convective Available Potential Energy over the Indian region and its effect on rainfall. International Journal of Climatology, 32, 1362–1372. https://doi.org/10.1002/joc.2359
Pai, D. S., Sridhar, L., Rajeevan, M., Sreejith, O. P., Satbhai, N. S., & Mukhopadyay, B. (2014). Development of a new high spatial resolution (0.25° × 0.25°) Long Period (1901–2010) daily gridded rainfall data set over India and its comparison with existing data sets over the region. Mausam, 65(1), 1–18.
Petterssen, S., & Smebye, S. J. (1971). On the development of extratropical cyclones. Quarterly Journal of the Royal Meteorological Society, 97, 457–482. https://doi.org/10.1002/qj.49709741407
Pisharoty, P., & Desai, B. N. (1956). Western Disturbances and Indian weather. Indian Journal of Meteorology & Geophysics, 7, 333–338.
Raymond, D. J. (2000). Thermodynamic control of tropical rainfall . Quarterly Journal of the Royal Meteorological Society, 126, 889–898. https://doi.org/10.1002/qj.49712656406
Raymond, D. J., & Zeng, X. (2000). Instability and large-scale circulations in a two-column model of the tropical Troposphere. Quarterly Journal of the Royal Meteorological Society, 126, 3117–3135. https://doi.org/10.1002/qj.49712657007
Roy, S., & Bhowmik, S. (2005). Analysis of thermodynamics of the atmosphere over NorthWest India during the passage of a Western disturbance as revealed by model analysis field. Current Science, 88(6), 947–951.
Schiemann, R., Luthi, D., & Schar, C. (2009). Seasonality and interannual variability of the Westerly Jet in the Tibetan Plateau region. Journal of Climate, 22, 2940–2957.
Sherwood, S. C., & Wahrlich, R. (1999). Observed evolution of tropical deep convective events and their environment. Monthly Weather Review, 127, 1777–1795. https://doi.org/10.1175/1520-0493(1999)127%3c1777:OEOTDC%3e2.0.CO;2
Singh, M. S., & Agnihotri, C. L. (1977). Baroclinity over India in Winter and its relation to Western disturbances and jet streams. Indian Journal of Meteorology, Hydrology and Geophysics, 28(3), 303–310.
Syed, F., Giorgi, F., Pal, J., et al. (2006). Effect of remote forcings on the Winter precipitation of Central SouthWest Asia part 1: Observations. Theoretical and Applied Climatology, 86, 147–160. https://doi.org/10.1007/s00704-005-0217-1
Takemi, T. (2014). Convection and precipitation under various stability and shear conditions: Squall lines in tropical versus midlatitude environment. Atmospheric Research, 142, 111–123. https://doi.org/10.1016/j.atmosres.2013.07.010 ISSN 0169-8095.
Thompson, R. M., Jr., Payne, S. W., Recker, E. E., & Reed, R. J. (1979). Structure and properties of synoptic-scale wave disturbances in the intertropical convergence zone of the Eastern Atlantic. Journal of Atmospheric Science, 36, 53–72.
Uccellini, L. W. (1990). Processes contributing to the rapid development of extratropical cyclones. In C. W. Newton & E. O. Holopainen (Eds.), Extratropical cyclones. American Meteorological Society.
Yano, J. I., Ambaum, M. H. P., Dacre, H. F., & Manzato, A. (2020). A dynamical–system description of precipitation over the tropics and the midlatitudes. Tellus A: Dynamic Meteorology and Oceanography, 72(1), 1–17. https://doi.org/10.1080/16000870.2020.1847939
Zawadzki, I., Torlaschi, E., & Sauvageau, R. (1981). The relationship between mesoscale thermodynamic variables and convective precipitation. Journal of Atmospheric Science, 38, 1535–1540. https://doi.org/10.1175/1520-0469(1981)038%3c1535:TRBMTV%3e2.0.CO;2.
Acknowledgements
The authors wish to convey their sincere gratitude to NCEP/NCAR for making the FNL data, which have been extensively used in this research work, available online. We also extend our gratitude to the India Met Department for making the gridded rainfall data, which have been used in this research paper. Our sincere gratitude goes to COLA for making the GRADS software, which has been used to derive all the figures in the digital format for this research analysis, available online. We are also grateful to two unknown reviewers of the manuscript, whose invaluable suggestions helped to improve the quality of the article.
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This research work is a part of the PhD work of N. Vinod Sankar and has not been funded by any agency.
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Sankar, N.V., Babu, C.A. Study on Environmental and Thermodynamic Factors that influence Precipitation associated with Western Disturbances over North India during Winter. Pure Appl. Geophys. 178, 4073–4096 (2021). https://doi.org/10.1007/s00024-021-02821-z
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DOI: https://doi.org/10.1007/s00024-021-02821-z