Abstract
The role of El Niño/Southern Oscillation (ENSO) and the mechanism through which ENSO influences the precipitation variability over northwest India and the adjoining (NWIA) region is well documented. In this study, the relative role of North Atlantic Oscillation (NAO)/Arctic Oscillation (AO) and ENSO in modulating the Asian jet stream in the Northern Hemisphere winter and their relative impact on the precipitation variability over the region have been estimated through analysis of observed data. It is seen that interannual variations of NWIA precipitation are largely influenced by ENSO. An empirical orthogonal function (EOF) analysis has been carried out to understand dominant modes of interannual variability of zonal wind at 200 hPa of the Northern Hemisphere. The EOF-1 pattern in the tropical region is similar to that of an ENSO pattern, and the principal component (PC) time series corresponds to the ENSO time series. The EOF-2 spatial pattern resembles that of NAO/AO with correlation of PC time series with AO and NAO being 0.74 and 0.62, respectively. The precipitation anomaly time series over the region of interest has marginally higher correlation with the PC-2 time series as compared to that of PC-1. Regression analysis of precipitation and circulation parameters indicates a larger contribution of the second mode to variability of winds and precipitation over the NWIA. Moisture transport from the Arabian Sea during the active phase of NAO/AO and the presence of a cyclonic anomaly lead to higher precipitation over the NWIA region.
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References
Agnihotri CL, Singh MS (1982) Satellite study of western disturbances. Mausam 33:249–254
Barlow M, Cullen H, Lyon B (2002) Drought in Central and Southwest Asia: La Nina, the Warm Pool, and Indian Ocean precipitation. J Climate 15:697–700
Branstator G (2002) Circumglobal teleconnections, the jet stream waveguide, and the North Atlantic oscillation. J Climate 15:1893–1910
Dimri AP, Mohanty UC (2009) Simulation of mesoscale features associated with intense western disturbances over western Himalayas. Meteorol Appl 16:289–308. doi:10.1002/met.117
Hurrell J. (2005) North Atlantic oscillation. Encyclopedia of World Climatology, Encyclopedia of Earth Sciences Series, Part 14, 536–539, doi: 10.1007/1-4020-3266-8_150
Hurrell JW, Y Kushnir, G Ottersen and M Visbeck (2003) The North Atlantic oscillation: climate significance and environmental impact. Geophys. Monogr. Ser., 134, 279 pp., AGU, Washington, D.C
Kalnay E et al (1996) The NCEP/NCAR 40-year reanalysis project. Bull Am Meteorol Soc 77:437–471
Kripalani RH, Kumar P (2004) Northeast monsoon variability over south Peninsular India vis-a-vis the Indian Ocean dipole mode. Int J Climatol 24:1267–1282
Reynolds RW, Rayner NA, Smith TM, Stokes DC, Wang W (2002) An improved in situ and satellite SST analysis for climate. J Climate 15:1609–1625
Ropelewski CF, Halpert MS (1987) Global and regional scale precipitation patterns associated with the El Niño/Southern Oscillation (ENSO). Mon Weather Rev 115:1606–1626. doi:10.1175/1520-0493
Saji NH, Goswami BN, Vinayachandran PN, Yamagata T (1999) A dipole mode in the tropical Indian Ocean. Nature 401:360–363
Sakai K, Kawamura R (2009) Remote response of the East Asian winter monsoon to tropical forcing related to El Nino-Southern Oscillation. J Geophys Res 114, D06105. doi:10.1029/2008JD010824
Syed FS, Giorgi F, Pal JS, King MP (2006) Effect of remote forcings on the winter precipitation of central southwest Asia. Part 1: observations. Theor Appl Climatol 86:147–160. doi:10.1007/s00704-005-0217-1
Thompson DWJ, Wallace JM (1998) The Arctic oscillation signature in the wintertime geopotential height and temperature fields. Geophys Res Lett 25:1297–1300
Thompson DWJ, Wallace JM (2000) Annular modes in the extratropical circulation. Part I: Month-to-month variability. J Climate 13:1000–1016
Watanabe M (2004) Asian jet waveguide and a downstream extension of the North Atlantic Oscillation. J Climate 17:4674–4691. doi:10.1175/JCLI-3228.1
Webster PJ, Yang S (1992) Monsoon and ENSO: selectively interactive systems. Q J R Meteorol Soc 118:877–926
Xie P, Arkin P (1997) Global precipitation: a 17-year monthly analysis based on gauge observations, satellite estimates, and numerical model outputs. Bull Am Meteorol Soc 78:2539–2558
Yadav RK, Rupa Kumar K, Rajeevan M (2009a) Increasing influence of ENSO and decreasing influence of AO/NAO in the recent decades over northwest India winter precipitation. J Geophys Res 114, D12112. doi:10.1029/2008JD011318
Yadav RK, Rupa Kumar K, Rajeevan M (2009b) Out-of-phase relationships between convection over north-west India and warm-pool region during winter season. Int J Climatol 29:1330–1338
Yadav RK, Yoo JH, Kucharski F, Abid MA (2010a) Why is ENSO influencing northwest India winter precipitation in recent decades? J Climate 23:1979–1992. doi:10.1175/2009JCLI3202.1
Yadav RK, Rupa Kumar K, Rajeevan M (2010b) Climate change scenarios for northwest India winter season. Quat Int 213:12–19. doi:10.1016/j.quaint.2008.09.012
Yang S, Lau K-M, Sankar-Rao M (1996) Precursory signals associated with the interannual variability of the Asian summer monsoon. J Climate 9:949–964
Yang S, Lau K-M, Kim K-M (2002) Variations of the East Asian jet stream and Asian–Pacific–American climate anomalies. J Clim 15:306–325
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Kar, S.C., Rana, S. Interannual variability of winter precipitation over northwest India and adjoining region: impact of global forcings. Theor Appl Climatol 116, 609–623 (2014). https://doi.org/10.1007/s00704-013-0968-z
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DOI: https://doi.org/10.1007/s00704-013-0968-z