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  • Water vapor x
  • Global Drought Information System - Drought Characterization, Occurrence, Driving Mechanisms, and Predictability Worldwide (GDIS Worldwide) x
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Mathew Barlow, Benjamin Zaitchik, Shlomit Paz, Emily Black, Jason Evans, and Andrew Hoell

of the storm track, is not yet clear. While orography plays a primary role in generating precipitation via upslope lifting, it can play that role only if sufficient water vapor is transported into the area. The water vapor transport pathways were investigated explicitly in Evans and Smith (2006) for the Fertile Crescent. They showed that most precipitation events in that area are dominated by water vapor coming from the west over the Mediterranean Sea. However, the largest precipitation events

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Lixia Zhang and Tianjun Zhou

wind starts to prevail along the East Asia coast, and rainfall starts to reduce with the largest precipitation percentage over central China (20°–40°N, 90°–110°E). The monsoon precipitation is impacted by the western Pacific subtropical high through modulating water vapor transport ( Zhou and Yu 2005 ). Following the seasonal withdrawal of the western Pacific subtropical high, drought shows obviously seasonal variation. This climate background provides a useful reference for our following

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Siegfried D. Schubert, Hailan Wang, Randal D. Koster, Max J. Suarez, and Pavel Ya. Groisman

global mean values provided by IPCC CMIP5. The other greenhouse gases [GHGs: CH 4 , N 2 O, chlorofluorocarbon (CFC)-11, CFC-12, and hydrochlorofluorocarbon (HCFC)-22], stratospheric water vapor (H 2 O), and ozone (O 3 ) are relaxed to time-varying zonal averages with a 3-day e -folding time. The zonal averages of the GHGs are taken from simulations of 1950–2010 with the GEOS chemistry–climate model (CCM; Pawson et al. 2008 ), and are calibrated (bias corrected) to the tropospheric concentrations

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