l        Increase the timeliness and accuracy of the forecasts of marine disasters such as storm tides, typhoons, red tides and abnormal water quality;

l        Provide references for marine management, marine planning, marine functional zone planning and exploitation of the tourism resources;

l        Provide environmental parameters for marine production activities like maritime engineering and oil & gas works;

l        Use for monitoring and management and marine scientific research, etc.;

(2) Technical properties

l        The radio frequency is subject to direct sampling based on full digitization and software radio technologies so as to avoid various kinds of additional interferences caused by the analog processing methods. The system’s detection performance is excellent;

l        The generalized hardware platform can promptly change the working parameters online, thereby meeting the detection needs for the near, medium and far measurement ranges and accuracy and realize the joint detections of marine environment and sea targets;

l        Thanks to the digital frequency conversion technology, the system can work in a set of multiple frequency and has a great capacity of resisting external disturbance; and

l        The single board integrated sixteen-channel digital array receiver integrates such functions as signal integration, receiving and processing, so there is the less signal interconnections and switching and the system reliability is therefore very high.

(3) System indicators

1) Flow field detection

l        Range resolution: 0.625km/1.25km/2.5km/5km.

l        Root mean square error: flow velocity: ≤3cm/s (the intermediate range between two stations) /3-6cm /s (others); flow direction: ≤±10°

2) Wave field detection

l        Detection range/acquisition rate: 75km/90%, 125km/75% or 175km/50% (maximum detection range: 250Km)

l        Measurement range: wave height: 0－10m; wave direction: 0－360°; wave cycle: 0-15s;

l        Root mean square error: wave height ± (0.5m plus 10% of the measured value); wave direction: ≤ ±10°; wave cycle: ≤ ±0.5s.

3) Wind field detection

l        Root mean square error: wind speed ≤ ± (2m/s plus 10% of the measured value); wind direction: ≤ ±15° (when the wind speed of steady-state wind field is greater than 3m/s).

l        Measurement range: wind direction 0－360°; wind speed: 5－75m/s; and

l        Detection range/probability: ＜75km/90%, 100km/75% or 125km/50% (maximum detection range: 150Km).