Kælikvísl

Kælikvísl is an Icelandic term that translates to "cooling branch" or "cooling fork." It refers to a section of a river or stream where the water temperature is significantly lower than the surrounding water body. This phenomenon is often caused by the influx of cold water from underground springs, glacial meltwater, or a confluence with a colder tributary.

The presence of a kælikvísl can have a notable impact on the local ecosystem. Fish species that prefer colder water, such as certain types of trout and salmon, may congregate in these areas, especially during warmer months. This creates localized pockets of biodiversity. Anglers often seek out kælikvíslar as they can be prime spots for fishing.

Geologically, kælikvíslar can be indicators of subsurface water sources. The consistent low temperature suggests a direct connection to a reservoir of colder water, which could be originating from deep underground aquifers or from the melting of ice caps and glaciers at higher elevations. The visual appearance of a kælikvísl might be subtle, with only a slight difference in water temperature noticeable to the touch, or it could be more pronounced with a visible change in water clarity or even the presence of ice formations in colder seasons.