- North St. Paul city, Minnesota is a city, town, place equivalent, or township located in Minnesota. North St. Paul city, Minnesota has a land area of 2.9 square miles.
- Halocline (Wikipedia)
A halocline (or salinity chemocline), from the Greek words hals (salt) and klinein (to slope), refers to a layer within a body of water (water column) where there is a sharp change in salinity (salt concentration) with depth.