Water/Wastewater - UK Focus
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Water Level
Example of real-time data made available on the internet (
http://data.ecn.ac.uk/ukleon/results.asp).
issues. Furthermore, many users will not need or wish to deal with the very high resolution data, so the database also automatically produces hourly and daily averages for all variables.
UKLEON Project Partners & Funders
Hydrolab multiparamater water quality instrument courtesy of OTT Hy- drometry Ltd. The rotating cleaning brush is visible to the right
UKLEON is funded as part of the Natural Environment Research Council’s Sensor Network Programme. It is led from the NERC Centre for Ecology & Hydrology (CEH) in collaboration with the Universities of Glasgow, Lancaster, Loughborough and University College London and also with Natural Resources Wales. A substantial additional input of time and expertise has been contributed by staff from the UK Astronomy Technology Centre (UKATC) with expertise in handling large volumes of data. Two UK companies are also heavily involved in providing off-the shelf and bespoke equipment for the project: OTT Hydrometry Ltd and Lakeland Instrumentation Ltd. OTT Hydrometry are contributing further by funding a PhD as part of the project.
Early Data and Results
A web-site has been set-up where anyone can view the data in real- time or for past periods. A particular site or variable of interest can be selected and variables (water temperature or solar radiation for example) can be compared across the network of sites.
A simple interface allowing the different partners in the project to download and work on the data is nearly completed, allowing the three scientific demonstration projects to be progressed further:
• Real-time forecasting of algal blooms • The effect of meteorology on the fate of carbon within lakes • The level of regional coherence in sub-seasonal timescales.
Each AWQMS records around 30 different variables every 4 minutes, producing about 43.4 million data points annually from across the entire network. This creates a technological challenge in how to handle, quality control, and make use of this mass of data. Our approach has been to produce a bespoke piece of data loading software (UKLOADER) that automatically collects the information sent from each buoy by telemetry, and loads it into an Oracle database held at CEH Lancaster. The database implements a simple form of quality control by applying ‘flags’ to the data when, for example, data exceeds a reasonable range, where there is a known problem such as low battery voltage, or where sondes have been serviced and maintained at that particular time. No data are discarded, so a user can decide how best to deal with potential data
Bassenthwaite Lake, Cumbria (photo: IJ Winfield). Collaboration
UKLEON is contributing to the NERC Consortium Grant GloboLakes (
http://www.globolakes.ac.uk), that is investigating the state of lakes and their response to climatic and other environmental drivers of change at a global scale using satellite data; the COST action NETLAKE that is building a network of AWQMS around Europe (
https://www.dkit.ie/netlake); and a project led from the USA, GLEON (Global Lake Ecological Observatory Network), that is building a global network of lake AWQMS (
http://www.gleon.org).
Wherever you are.
Environmental monitoring
LIVE DATA! Direct to your computer.
Water Quality Precipitation
• Easy to install • Low cost to run • Low power • New or retro-fit
• GPRS/GSM or radio telemetry
Following the acquisition of Adcon Telemetry, OTT can now provide simple low cost telemetry units for remote monitors to enable real-time data.
We can also deliver complete turnkey monitoring, logging and communications systems.
www.envirotech-online.com IET September / October 2013 OTT Hydrometry Ltd
Unit 2 , Magnet Business Park, High Hazels Road,
Barlborough, Chesterfield S43 4UZ
tel: 01246 573 480
Sales@ott-hydrometry.co.uk
email:
598ad@reply-direct.com
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