Hadley Cell A direct, thermally driven overturning cell in the atmosphere consisting of poleward flow in the upper troposphere, subsiding air into the subtropical anticyclones, return flow as part of the trade winds near the surface, and with rising air near the equator in the so - called Intertropical Convergence Zone. (metlink.org)
Voigt A., R. Pincus, B. Stevens, S. Bony, O. Boucher, N. Bellouin, A. Lewinschal, B. Medeiros, Z. Wang and H. Zhang (July 2017): Fast and slow shifts of the zonal - mean intertropical convergence zone in response to an idealized anthropogenic aerosol. (esrl.noaa.gov)
Months really surprise people: DJF = Dec., Jan., Feb. = winter JJA = Jun., July, Aug. = summer MAM = spring SON = fall SRES = Special Report on Emissions Scenarios UNFCCC = United Nations Framework Convention on Climate Change ITCZ = Intertropical Convergence Zone NAO = North Atlantic Oscillation ENSO = El Nino Southern Oscillation PPM / PPMV = Parts per million by volume (illconsidered.blogspot.ru)