Brochure > ClearSat-1

The ClearSat-1 surface drifter accurately tracks the top 1 meter of the surface mixed layer and provides a platform for oceanographic and meteorological measurements at the sea surface. The drifter is configured according to CODE (California Ocean Dynamic Experiment) design considerations. Sail arms can be quickly pulled out from the hull and folded against it along with the antenna for efficient storage. Data are reported from worldwide to the user by satellite telemetry though the Argos system which also makes accurate locations of the drifter's position1. Standard instrument suite reports sea surface temperature, and battery condition. The microprocessor controller and transmitter are contained completely within the rugged hull of PVC plastic or anodized aluminum. Options include, salinity (conductivity/temperature), and air deployment packaging.

Physical	Hull 8.9 cm. (3.5 in) diameter by 100 cm (39.4 in.) length PVC; total weight 8 kg.(17lbs)
Drogue	1 meter x 1 meter cross section. Center at 80 cm
Power Supply	12 VDC, 43 AH, sufficient for 6 weeks at continuous transmission
Transmit Cycle	Continuous, 8/16 , 12/12, 12/24, 24/48 (hours on/hours off)
Sea Temperature	Linearized thermistor sensor imbedded in 316-ss through-hull fitting at base of surface float;fast time-constant design. Calibration to 0.1oC provided. Temperature range is -5 to 45 +/- 0.05oC.
Sea Surface Salinity	C/T measurement, 0 - 64 +/- 0.025 mmho/cm., -5 - 35 +/- 0.05 C, 12 hourly samples
GPS (optional)	Year, month, day, hh:mm:ss +/- 1 sec, latitude and longitude +/- 0.0001 deg., 4 to 13 positions. Single, multi-band antenna for GPS and Argos
RF Output	1ą .3 watt into 50 ohms
Environmental	-50 to 30°C, storage, -5 to 45°C, operation

Technical Specifications: