Table 1 Physical properties of Lake Brienz and its catchment (BAFU, 2016, 2018)

Altitude of lake level

564 m a.s.l

Catchment area

1138 km²

Surface area

29.8 km²

Mean altitude of catchment

1951 m a.s.l

Volume

5.15 km³

Average water discharge Aare

(2018)

37.1 m³/s

Maximum length

14.2 km

Maximum width

2.8 km

Average water discharge

Lütschine (2018)

19.0 m³/s

Mean depth

173 m

Maximum depth

256 m

Mean residence time water

2.6 yrs