NSW Foundation Spatial Data Framework - Water - NSW Hydro Area

NSW Hydro Area is a polygon feature class defining\r\nhydrographic feature types. This feature class is divided into waterbody area and water course.\r\nWaterbody is a standard body of inland water of which flow is minor. Waterbody may be natural waterbody or man-made waterbody.\r\n\r\nWater course is a way or course through which water may pass.\r\n\r\nHydro area feature class is also classified as perennial, non-perennial or mainly dry.

新南威尔士州水文区域（NSW Hydro Area）是一类用于定义水文地理要素类型的多边形要素类。该要素类分为水体区域与水道两类。
水体是指流速平缓的常规内陆水域，可分为天然水体与人工水体两类。
水道是指可供水体流经的通道或路径。
该水文区域要素类还可划分为常年性、非常年性以及基本干涸三类。