These are some commonly asked questions about the Seaview Reatime system.
If you have any further questions please
Seaview Realtime software provides spatial wave, current and wind information that would require the deployment of multiple in situ instruments such as wave buoys or adcps.
Seaview metocean data can complement in situ sensor information e.g. by providing the surface spatial picture with adcps (for example) providing information through the water column.
Generally, wave buoys do not measure surface current or wind, whereas Seaview Realtime provides this information simultaneously with the wave measurements.
HF radar with Seaview Software possibly has a higher set-up cost but the maintenance costs are significantly lower over the long term.
You can monitor and download the data on our data viewer via the internet.
Files with directional spectra (these cannot be downloaded directly from the data viewer) and/or specific parameters can be delivered automatically to you via FTP.
The software cannot strictly be used for forecasting. However, the long term historical data can be utilised for prediction purposes.
The data can also be assimiliated into predictive models to improve forecasts.
Fixed offshore rigs do not affect the data.
Offshore wind farms do make it difficult to measure waves close to the turbine locations when they are in operation. Current measurement does not appear to be affected.
It really depends on the particular project but as a guide the software usually costs a tenth of the cost of the radar.
Our software measures the full ocean wave directional spectrum and derives parameters such as signficant waveheight, peak period and direction using standard oceanographic methods.
The standard WERA wave measurement is an empirical-fitting method providing an estimate of the frequency spectrum (from which waveheight and period can be obtained) and mean direction at each frequency.
In our experience wave spectra are often complicated with local wind seas with different fetch and development times combined with different swell components. The ocean wave directional spectrum is the only measurement that can resolve these features.
Although compact antennas are much easier to install and provide good current measurements, wave data is limited and only available close to the radar sites. Seaview Realtime provides customers with mapping of surface wave, wind and current and for this reason works with phased array radars.
See our radar technology section for further details.
The more channels you have the better. The software itself does not need to know the size of your array but it works best with 12 channels and above. We advise a minimum of 16 to minimise antenna sidelobe influences which can reduce the accuracy of wave measurements.
In theory, there shouldn't be a problem although you will probably need help at your second location for reinstallation. Roving software licenses are available for this situation.