2 general facts about its surface:
1) Can you see someone standing on the opposite shore? NO
How much is missing? ~ 2.3 m (7.5 ft) (h = r-½ root 4r2 - s2)
- They are local variations in the level of the lake ("stationary waves").
- They were named "seiches" by F.-A. Forel, (1841-1912), who was the first to explain their
- They can be caused by strong winds and by a variation in the atmospheric pressure.
- The lake's water level could vary
mechanisms.
- according to some, by 30 cm (11.8 in)...
- according to others, by 20-40 cm (8-16 in)...
- or by 0.6 to 1.5 m (2 to 5 ft) in half an hour...
- even by 2 m (about 7 ft). :
(http://18.1911encyclopedia.org/G/GE/GENEVA_LAKE_OF.htm:
The maximum height of a recorded seiche at Geneva is just over 6 ft. (October 1841))