Welcome To Whitehall Township Whitehall Township is located in the center of the Lehigh Valley. The Township is one hour north of Philadelphia and an hour and half from New York City.
SALINITY OVERVIEW Salinity is the concentration of dissolved salts in water, usually expressed in parts per thousand (ppt). Objects float higher in salt water than fresh water because salt water is denser (heavier per unit of volume).
1. Salinity refers to the proportion of dissolved salts to pure water in the ocean. The average salinity is about 35 parts per thousand. Oceanographers express salinity in parts per thousand because the proportion of dissolved substances in seawater is a very small number. 2.. Salinity refers to the proportion of dissolved salts to pure water in the ocean. The average salinity is about 35 parts per thousand. Oceanographers express salinity in parts per thousand because the proportion of dissolved substances in seawater is a very small number. 2.