TY - JOUR A1 - Hu, Y. A1 - Fu, Q. T1 - Observed poleward expansion of the Hadley circulation since 1979 JO - Atmos. Chem. Phys. J1 - ACP VL - 7 IS - 19 SP - 5229 EP - 5236 Y1 - 2007/10/10 PB - Copernicus Publications SN - 1680-7316 UR - http://www.atmos-chem-phys.net/7/5229/2007/ L1 - http://www.atmos-chem-phys.net/7/5229/2007/acp-7-5229-2007.pdf ER -