Andelshofer Weiher

Andelshofer Weiher
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Geographical location	Germany Baden-Wuerttemberg Bodenseekreis Überlingen
Tributaries	several trenches and an underground channel from the Auenbach
Drain	underground via the Stadtwerk am See hydropower plant to Lake Constance / Rhine
Places on the shore	Andelshofen
Data
Coordinates	47 ° 47 '12 "  N , 9 ° 10' 40"  E Coordinates: 47 ° 47 '12 "  N , 9 ° 10' 40"  E
Altitude above sea level	508  m above sea level NHN
surface	32.2 ha
volume	1,093,000 m³
Maximum depth	5.3 m
Middle deep	3.4 m
Catchment area	9.31 km²

The Andelshofer Weiher , also called "Neuweiher", is a still water in the area of ​​the Baden-Württemberg city ​​of Überlingen in the Lake Constance district in Germany .

location

The approximately 32 hectares large Andelshof Weiher , about eight kilometers northeast of the town of Ueberlingen center, at an altitude of around 508  meters above sea level. NHN located, is one of the natural area for Linzgau . Today it is used for fishing and hydropower purposes.

Hydrology

The Andelshofer Weiher was created before 1930. Its catchment area extends to about 930 hectares. The size of the lake basin is 32.3  hectares , with an average depth of 3.4 meters and a maximum depth of 5.3 meters, the volume is around 1,093,000 cubic meters.

The inlet of the pond takes place via several ditches and an underground channel from the Owinger Auenbach , the outflow via a hydropower plant into Lake Constance and thus into the Rhine .

ecology

Since 1989 Überlingen and Owingen are (only catchment area) with the Andelshof pond on action program for the rehabilitation of Upper Swabian lakes involved. An important goal of this program is to reduce nutrient inputs in streams, lakes and ponds and thereby improve and maintain the condition of the water bodies.

35 percent of the pond's catchment area is used for forest and 55 percent for agriculture - 60% of which is grassland and 40% arable land.

Plant nutrients and other trophy indicators

year	1997 *	1998 *	2004	2010 **	Trophy level
Total PO 4 - phosphorus (µg / l)	42	50	53	46	eutrophic
Chlorophyll a (µg / l)	10	15th	16	25th	eutrophic
Chlorophyll a peak (µg / l)	28	35	30th	44	eutrophic
total inorganic nitrogen a (mg / l)	0.54	0.49	0.23	0.28
Viewing depth (m)	2.8	2.0	2.0	1.5	eutrophic
* surface water only; ** Lowered by one meter this year due to dam repairs

Web links

• Action program for the rehabilitation of Upper Swabian lakes

Individual evidence

1. ↑ height calculation in www.deine-berge.de