TY - JOUR A1 - Hu, Y. A1 - Fu, Q. T1 - Observed poleward expansion of the Hadley circulation since 1979 JO - Atmos. Chem. Phys. Discuss. J1 - ACPD VL - 7 IS - 4 SP - 9367 EP - 9384 Y1 - 2007/07/02 PB - Copernicus Publications SN - 1680-7367 UR - http://www.atmos-chem-phys-discuss.net/7/9367/2007/ L1 - http://www.atmos-chem-phys-discuss.net/7/9367/2007/acpd-7-9367-2007.pdf ER -