pH is a measure of the acidity or bascity of the water. Changes in pH can have consequences for ocean ecosystems and has been generally decreasing across the Earth's oceans due to carbon dioxide uptake from the atmosphere into the sea. This decreasing pH is referred to as Ocean Acidification. You can read more about this on Wikipedia, here.
OceanLab has several pH sensors (click here for equipment overview) that are recorded as auxhilary parameters on some of the CTD instruments. pH sensors are installed on the profiling frame at the Munkholmen site, and on the the inside of the buoy (ca. 1m depth) at the Ingdalen site.
Instrument locations and types
|Munkholmen||Profiling frame (from 0.5m to 80m depths)||SBE 18 pH sensor||SeaCAT Plus V2 profiler pumped conductivity, temperature depth recorder||Coming soon|
|Ingdalen||Inside moonpool (surface ca. 1m depth)||HydroCAT-EP V2 conductivity, temperature pH recorder||HydroCAT-EP V2 conductivity, temperature pH recorder||Environmental Data: Ingdalen|
|SINTEF SeaLab||Mobile profiling frame (for boatwork)||SBE 18 pH sensor||SeaCAT Plus V2 profiler pumped conductivity, temperature depth recorder||n/a|
External links Ocean acidification