what does the name Kallan mean?

We found the name on another baby name search site, but it did not give a clear meaning or origin. So looked it up and this is what we found...

The girl's name Kallan \k(al)-lan\ is pronounced KAL-en. It is of Scandinavian origin, and its meaning is "flowing water".

3d ultrasound of Kallan at 6 months of pregnancy

Who does she look like?