Surface Velocity Program Salinity (SVP-S) Drifter
Surface Velocity Program Salinity Drifter
- 35cm sphere surface float
- GPS based tracking
- Iridium Short Burst Data (SBD) telemetry
- Sea Surface Temperature (±0.05K accuracy)
- Sea Surface Salinity
- Holey Sock Drogue centered at 15m depth
- Variable sampling rate down to 5 minutes
- 1 year lifespan
Sea Surface Salinity Sensor
The SVP Salinity (SVPS) drifter (Centurioni et al. 2015; Hormann et al. 2014a) stems from the SVP Drifter design and can also be configured with a barometer. It carries a Sea Bird Electronics SBE37 sensor.
The salinity sensor is located at a depth of 0.5 m and a slightly bigger drogue is used to compensate for the larger drag area of the surface buoy and the salinity sensor mount combined, as needed to keep the drag-area ratio larger than 40.
The lifespan of the SVPS drifter is shorter than for the SVP and SVPB drifters due to the SBE37, and is about one year.