HydroNodeCategoryValue
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The feature is attributed with a hydroNodeCategory with a data type of hydroNodeCategoryValue. The following table lists the codes which are used to populate this field and gives a description for each code.
Classification value defining the type of hydrographic node
junction
A split in the network to indicate where three or more watercourses meet at the same level, for example, confluences or bifurcations.
outlet
The end terminal of a set of one or more interconnected links that does not have any downstream flow, for example, sinks or the point where a river enters the sea.
source
The start terminal of a set of one or more interconnected links that has downstream flow, for example, springs or collects.
Where the hydroNodeCategory has not been identified, this attribute is set to null and a nilReason of inapplicable is given. This will indicate where an attribute of the watercourse changes which requires a watercourseLink to split, for example, watercourseName. In the Esri shapefile, these are given the attribute value of pseudo.