Introduction to Pacific Gyre Company:

PacificGyre designs and manufactures drift buoys and fixed-point buoys to track ocean currents and collect environmental data. These buoys include GPS receivers and satellite telemetry control systems, allowing users to track and monitor the current status of the buoys in real time and implement remote control.

Pacific Gyre Product List:

1. Microstar Small Drifting Buoy

2. SVP Lagrangian Drifting Buoy

3. Carthe disposable biodegradable drifting buoy

4. SLDMB military drift buoy (aircraft deployment)

5. Reef Tracker Drifting Ball (No Sail)

6. Globeacon Global Tracker

7. Globeacon MET Global Mobile Meteorological Station

8. Ice Tracker Floating Ice Tracking Buoy

9. Universal Tracker Global Positioning Float

SVP Lagrangian Drifting Buoy

SVP Introduction:

The SVP drifting buoy is placed at a fixed depth (15m) below the sea surface for ocean current tracking. The SVP structure includes a floating ball on the water surface, connecting cables, and a water sail. The water sail is located at a fixed depth underwater, with a center distance of 15m from the sea surface. The water sail is connected to the floating ball on the water surface through a connecting cable.

The floating ball on the water surface provides the necessary buoyancy to keep the sail in a fixed position underwater, while containing all the electronic components of the entire drifting buoy inside. These electronic components include: remote communication system, battery pack, GPS receiver. GPS calculates the position of drifting buoys and the time to obtain these positions. The remote communication system sends the time and position information back to the Pacific Gyre data server, and users can use this data to calculate the speed and direction of ocean currents.

SVP Lagrangian Drifting Buoy

SVP standard features:

1. The diameter of the floating ball on the water surface is 14 "(35cm)

2. Remote satellite communication

3. GPS positioning

4. A cylindrical porous water sail with a length of 6m, with its center located at a depth of 15m

5. Water sail On/Off sensor

6. Battery voltage sensor

7. Data archiving, mapping, website access

SVP application:

1. Traffic research

2. Meteorological survey and research

3. Diffusion research

4. Research on the Transportation of Insects and Algae

SVP optional:

If additional sensors are chosen to be added to the large SVP, larger surface floats may be required, such as a diameter of 16 "(41cm) and a diameter of 18" (46cm). It depends on the type of sensor.

1. Remote data transmission: Argos, Iridium or Globalstar

2. Surface seawater temperature sensor

3. Placement status sensor

4. Air pressure

5. Wind speed

6. Salinity of seawater

7. Extra water sail surface (non-standard deployment)

SVP Technical Specifications

1、 Overview

Remote communication option: Iridium SBD (9602 Iridium module)

Argos2/3（Kenwood PMT）

Globalstar Simplex (Globalstar STX-3)

Standard status sensors: battery voltage level, GPS quality, water sail On/Off sensor

Standard battery pack: 12V, 56AH, alkaline

Optional status sensor: internal float surface temperature, deployment status

Optional environmental sensors: seawater surface sensor SST, high-precision SST, air pressure, wind speed, temperature and salinity

Delivery lifespan: 1-2 years (standard battery pack), depending on sampling frequency and transmission frequency

2、 Floating ball on the water surface

Diameter: 14 inches (35cm)

Material: ABS plastic

Color: White

Anti biological adhesion spraying: Yes (the lower hemisphere surface is coated with anti biological adhesion paint, optional blue coating)

Sea surface water temperature sensor SST protection: available

SST water temperature sensor inlet depth: 3.5 inches (9cm)

Power switch: magnetic switch

3、 Shuifan

Type: Cylindrical with holes

Depth of water sail center: 15m

Diameter and length of each sail: 24 inches (61cm)/48 inches (122cm)

Number of sail sections: 5 (total length approximately 6m)

Resistance area ratio: greater than 40

Tether: 1/8 inch impregnated steel wire rope (3/16 inch synthetic wire rope optional)

4、 Packaging

Placement: Weight 45lbs (20.4kg)

5、 Environmental sensors

SST: Pacific Gyre temperature sensor, accuracy 0.1 ° C, range:- 5–40°C

High precision SST: Pacific Gyre temperature sensor, accuracy of 0.05 ° C, range:- 5–40°C

Pressure sensor: Honeywell IPT， Accuracy 1mbar, range: 800-1100mbar

Wind speed sensor: Gill Windsonic， Accuracy 2% @ 12m/s, 0-60m/s

Temperature and salinity sensor: SBE MicroCAT。 Temperature: Accuracy 0.002 ° C, Range:- 5–35°C

Conductivity: accuracy 0.0003s/m, range: 0-7S/m