Abstract
Several studies demonstrate that North Atlantic Oscillation (NAO) has dominant influence on the variability of climate over Southwest Asia. We deconstruct the NAO into its two components, the Azores High and the Icelandic Low. Regional circulations are influenced by changes not only in the pressure but also the positions of the Azores High and the Icelandic Low. The results presented in this paper exhibit that significantly great portions of interannual variance of winter precipitation over Indo-Pak Region (consists of Northeast Pakistan and Northwest India) can be explained by including the contributions of the Icelandic Low pressure in addition to ENSO and AO. This contribution also explains the physical mechanisms to establish the relationships between the COA and regional climate by examining composite maps of large-scale circulation fields using NCEP/NCAR reanalysis data.
Similar content being viewed by others
References
Ambaum MHP, Hoskins BJ, Stephenson DB (2001) Arctic Oscillation or North Atlantic Oscillation? J Climate 14:3495–3507
Cullen HM, Kaplan A, Arkin PA, Demenocal P (2002) Impact of the North Atlantic Oscillation on Middle Eastern climate and streamflow. Clim Change 55:315–338
Eshel G, Farrell CM, Farrell B (2000) Forecasting Eastern Mediterranean droughts. Mon Wea Rev 128:3618–3630
Hameed S, Piontkovski SA (2004) The dominant influence of the Icelandic Low on the position of the Gulf Stream northwall. Geophys Res Let 31:L09303
Hameed S, Iqbal MJ,Rehaman S, Collins D (2011), “Impact of the Indian Ocean High Pressure System On Winter Precipitation over Western Australia and Southwest Western Australia”, Australian Meteorological and Oceanographic Journal (under review)
Hurrell JW (1995) Decadal trend in the North Atlantic Oscillation: regional temperatures and precipitation. Science 269:676–679
Piontkovski S, Hameed S (2002) Precursors of copepod abundance in the Gulf of Main in atmospheric centers of action and sea surface temperature. Glob Atmosphere Ocean Syst 8:283–291
Riemer R, Doherty OM, Hameed S (2006) On the variability of African dust ransport across the Atlantic. Geophys Res Lett 33:L13814
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. doi:10.1007/200704-005-0217-1
Trewartha GT (1961) The Earth’s problem climates. University of Wisconsin Press, Madison, p 334
Türkes M, Erlet E (2007) Influence of the Arctic Oscillation on the variability of winter mean temperatures in Turkey. Theoretical and Applied Climatology 92:75–85
Wallace JM (2000) North Atlantic Oscillation/annular mode: two paradigms—one phenomenon. Quart J Roy Met Soc 126:791–805
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Iqbal, M.J., Ilyas, K. Influence of Icelandic Low pressure on winter precipitation variability over northern part of Indo-Pak Region. Arab J Geosci 6, 543–548 (2013). https://doi.org/10.1007/s12517-011-0355-y
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12517-011-0355-y