منابع 1. عساکره، ح.، 1382، نوسانات اقیانوس اطلس شمالی، نشریه علمی پژوهشی سپهر، دوره دوازدهم، شماره چهل و هشتم، ص 20. 2. علیجانی، ب.، 1393، آب و هواشناسی سینوپتیک، انتشارات سمت. 3. فلاح قالهری، غ،ع.، 1393، اصول و مبانی هواشناسی، انتشارات دانشگاه حکیم سبزواری، ص 497. 4. لشکری، ح؛ 1393.، آب و هواشناسی دینامیک، انتشارات دانشگاه شهید بهشتی، 213-214. 5. مفیدی، ع؛ ذرین، آ.، 1391، بررسی ماهیت، ساختار و وردایی زمانی گردش بزرگ مقیاس جو تابستانه بر روی جنوب غرب آسیا، نشریه پژوهش های اقلیم شناسی، سال سوم، شماره یازدهم، پاییز، ص 16. 6. Agard, A., 2009. Analysis of the General Circulation of the Atmosphere through Low- and Mid-Latitude Phenomena. 7. Birner, T., S. M. Davis, and D. J. Seidel., 2014. The changing width of Earth’s tropical belt. Phys. Today, 67, 38–44, doi:10.1063/PT.3.2620. 8. Cook, K.H., 2004. Hadley Circulation Dynamics: Seasonality and the Role of Continents. In “The Hadley Circulation: Past, Present, and Future”. Series: Advances in Global Change Research, Vol.21. Diaz, Henry F.; Bradley, Raymond S. (Eds.), 511 p., SBN: 1-4020-2943-8. 9. Davis, N. A., 2017. The Dynamics of Hadley Circulation Variability and Change, Colorado State University, Libraries. 10. Feng, S., and Q. Fu., 2013. Expansion of global drylands under a warmer climate. Atmos. Chem. Phys., 13, 10081–10094, doi: 10.5194/acp-13-10081-2013. 11. Ferrel, W., 1856. An essay on the winds and currents of the oceans, Nashville Journal of Medicine and Surgery. 12. Frierson, D. M. W., J. Lu, and G. Chen., 2007. Width of the Hadley cell in simple and comprehensive general circulation models. Geophys. Res. Lett., 34, L18804, doi: 10.1029/2007GL031115. 13. Gaffen, D. J., B. D. Santer, J.S. Boyle, J. R. Christy, N.E. Graham, and R. J. Ross.,2002. Multidecadal changes in the vertical temperature structure of the tropical troposphere.Science, 287, 1242-1245. 14. Hadley, G., 1735. Concerning the cause of the general trade winds. Phil. Trans. Roy. Soc., 29, 58–62. 15. Held, I. M., and B. J. Soden., 2006. Robust Responses of the Hydrological Cycle to Global Warming. J. Climate, 19, 5685–5699, doi:10.1175/JCLI3990.1 16. Hurrell, J., 1996. Influence of variations in extratropical wintertime teleconnections on Northern Hemisphere temperature. Geophy. Res. Lett., 23, 665-668. 17. IPCC. 1996. Climate Change 1995: The Science of Climate Change. J.T. Houghton et al. (eds.), Cambridge University Press, 572 pp. 18. IPCC. 2001. Climate Change 2001. The Science Basis. J.T. Houghton et al. (eds.), Cambridge University Press, 881 pp. 19. Johanson, C. M., and Q. Fu., 2009. Hadley cell widening: Model simulations versus observations. J. Climate, 22, 2713–2725, doi:10.1175/2008JCLI2620.1. 20. Karnauskas, K. B., and C. C. Ummenhofer., 2014. On the dynamics of the Hadley circulation and subtropical drying. Clim. Dyn., 2259–2269, doi: 10.1007/s00382-014-2129-1. 21. Lu, J., G. A. Vecchi, and T. Reichler., 2007. Expansion of the Hadley cell under global warming, Geophys. Res. Lett., 34, L06805, doi: 10.1029/2006GL028443. 22. Lu, J., G. A. Vecchi, and T. Reichler., 2007. Expansion of the Hadley cell under global warming, Geophys. Res. Lett., 34, L06805, doi: 10.1029/2006GL028443. 23. Nguyen, H., C. Lucas, A. Evans, B. Timbal, and L. Hanson., 2015. Expansion of the Southern Hemisphere Hadley Cell in Response to Greenhouse Gas Forcing. J. Climate, 28, 8067–8077, doi:0.1175/JCLI-D-15-0139.1. 24. Ort, A. H., and J. J. Yienger., 1996. Observed interannual variability in the Hadley circulation and its connection to ENSO. J. Climate, 9, 2751–2767. 25. Parker, D. E., 2002. Temperatures High and Low, Science, 287, 1216. 26. Scheff, J., and D. M. W. Frierson., 2012. Robust future precipitation declines in CMIP5 largely reflect the poleward expansion of model subtropical dry zones. Geophys. Res. Lett., 39, L18704, doi: 10.1029/2012GL052910. 27. Stull, R., 2017. Practical Meteorology: An Algebra-based Survey of Atmospheric Science.pp377.