Fig. 1. Map showing the sampling sites of flood crisis areas in Chiang Mai 2011. Whole picture of Mueang District, Chiang Mai is shown on the upper right. A: Nawarat Bridge (cmf3). B: Charoen Pratet Road (cmf7). C: Chang Klan Road (cmf2). D: Pracha Sampan Intersection (cmf1). E: Chiang Mai Land Village (cmf5). F: Nong Hoi Road (cmf6). G: Chiang Mai-Lampun road (cmf4).