Unidata Overseas Partners

Geo Scientific helps the City of Chilliwack to improve streamflow measurements

Unidata and GeoScientifc help the City of Chilliwack to improve Streamflow Measurements

Unidata partner Geo Scientific, based in Vancouver BC in Canada has been working with the City of Chilliwack to improve the streamflow measurements for the Fraser River to assist with flood management.
Geoscientific have provided several Neon Systems into this area. There are now substantial river flows in that region, mainly associated with snow melt, which is an annual event in the region. The Neon systems allow for up to the minute data collection of this important data.

Flood hazard is often expressed in terms of the likelihood or probability of a given flood event occurring. For example, the 1894 flood on the Fraser River is the largest flood on record, and is estimated to be a “1 in 500 year” event. The expression “1 in 500” does not mean that this size of flood will only happen once every 500 years.  For example, we can’t say that because it happened in 1894, it won’t happen again until close to the year 2400.   Rather, it means that there is a 1 in 500 chance of it occurring in any given year (1/500 = 0.2% chance per year). This explains why we can hear about large flood events, for example “1 in 100 year” flood events, happening two years in a row; the “1 in 100 year” events have a 1/100 (1%) chance of happening in any given year.

The Provincial River Forecast Centre collects and interprets snow, meteorological and streamflow data to provide warnings and forecasts of stream and lake runoff conditions around the province.  Environment Canada also publishes this data on their website. Visit British Columbia River Forecast Centre for current reports.

The City of Chilliwack uses the information provided by the River Forecast Centre when carrying out flood response activities.

Streamline Measurement on the bonny bonny banks of Loch Lomond

Unidata and Streamline Measurement - On the bonny bonny banks of Loch Lomond

Unidata partner in the UK, Streamline Measurement, has recently secured a large project to monitor the flow from the mountains in several streams passing under the road into Loch Lomond. The end customer needs to characterise these streams before commencing a major road upgrade project along the banks of Loch Lomond.

This project uses the new Starflow QSD Ultrasonic Doppler Velocity and depth instrument connected to a Neon Metering Module to transfer the readings back to the Neon Application running on the main Neon 1 system. The readings will be monitored and the collected data shall be used to influence the design of this major road upgrade.
The Minister in Scotland has said that we need to ensure that any future upgrade fits within the area’s outstanding landscape and environment and maintains the renowned beauty of the Loch Lomond and Trossachs National Park. This project is a significant one for our partner based in Manchester in the UK and a very good one for the Starflow QSD product

We also remember the famous Scottish song from our youth, if you don’t know it then you should.

Ye’ll tak’ the high road and I’ll tak the low road
And I’ll be in Scotland afore ye
But me and my true love will never meet again
On the bonny, bonny banks of Loch Lomond

And now we are measuring those banks with Starflow QSD.