• RSK


  • latitudelatitude in decimal degrees north.
  • longitude : longitude in decimal degrees east.


  • RSK

The function derives absolute salinity using the TEOS-10 GSW toolbox ( The result is added to the RSK data structure, and the channel list is updated. The workflow of the function depends on if GPS information is available:

  1. When latitude and longitude data are available (either from optional input or station data in, the function will call SA = gsw_SA_from_SP(salinity,seapressure,lon,lat)
  2. When latitude and longitude data are absent, the function will call SA = gsw_SR_from_SP(salinity) assuming that reference salinity equals absolute salinity approximately.


When geographic information are both available from optional inputs and structure, the optional inputs will override. The inputs latitude/longitude must be either a single value of vector of the same length of