PROBZONES - Generalized 100- and 500-year flood zones for Seaside, Oregon, determined by probabilistic tsunami hazard analysis

PROBZONES is a generalized polygon layer outlining areas in the Seaside-Gearhart, Oregon, area subject to the 100-year and 500-year flood as determined by probabilistic tsunami hazard analysis (PTHA).

PROBZONES 为广义多边形图层，勾勒出俄勒冈州锡赛德-吉尔哈特地区内，由概率海啸危险性分析（probabilistic tsunami hazard analysis, PTHA）确定的、将遭遇100年一遇和500年一遇海啸洪水的区域。