And it's necessary to prove such point of view against some oppugns. The Lakeeffect, the oasis effect and desertification have all given proofs of this opinion.
湖泊效应、绿洲效应和沙漠化效应都证明本地水汽比外来水汽容易在本地形成降水;
2
Li Jianglin, Chen Yuchun, Lü Shihua, et al. 2009. Numerical simulation of winter lakeeffect in valley city of Lanzhou using RAMS Model[J]. Plateau Meteor, 28(5):955-965.