| 词条 | Aa (Werre) |
| 释义 |
| name = Aa | image = | image_size = | image_alt = | image_caption = | map = Germany River Aa Map.svg | map_size = | map_alt = | map_caption = | source1_location = | mouth_location = Werre | mouth_coordinates = {{coord|52.1236|8.6703|region:DE|display=it}} | progression = {{PWerre}} | subdivision_type1 = Country | subdivision_name1 = Germany | subdivision_type2 = State | subdivision_name2 = North Rhine-Westphalia | subdivision_type3 = | subdivision_name3 = | length = {{convert|26.0|km|abbr=on}} {{GeoQuelle|DE-NW|GSK3C}} | source1_elevation = | mouth_elevation = | discharge1_avg = | basin_size = {{convert|256|km2|abbr=on}} {{GeoQuelle|DE-NW|GSK3C}} | river_system = | tributaries_left = | tributaries_right = | pushpin_map = North Rhine-Westphalia | pushpin_map_size = 300 | pushpin_map_caption= North Rhine-Westphalia | pushpin_map_alt = Relief Map of North Rhine-Westphalia }} Aa (also: Westfälische Aa, "Westphalian Aa") is a river of North Rhine-Westphalia, Germany. It is a left tributary of the Werre, which it joins in Herford. It is formed by the confluence of two small streams in Bielefeld-Milse. In its upper part, it is called Johannisbach. See also
References{{NorthRhineWestphalia-river-stub}} 2 : Rivers of North Rhine-Westphalia|Aa (Werre) basin |
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