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Water move monitor fills know-how hole

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Water move monitor fills know-how hole

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NivuFlowStick_InRiverFlow
NivuFlow Stick devices at the moment are employed by the vast majority of the Company’s 23 hydrometry groups, and routinely used within the coaching of latest recruits.

The instrumentation firm Nivus has developed a brand new hand-held moveable move monitoring know-how in response to a requirement that was initially recognized by the Atmosphere Company (EA).

In 2018, the EA hydrometry crew challenged the instrumentation sector to develop a hand-held moveable move monitoring resolution for small rivers and streams. This prompted a growth programme at Nivus that culminated within the launch of a brand new instrument, the ‘NivuFlow Stick’ which is now used and trusted by regulators, hydrologists, consultants and academia worldwide.

Background
Along with flood threat, the Atmosphere Company’s (EA) tasks additionally embody conservation, ecology, water assets, fisheries, rivers and estuaries. The administration of those tasks is knowledgeable by measurement information, so the Company operates a complete move monitoring programme in England, which incorporates round 1500 buildings, equivalent to flumes and weirs.

The EA additionally operates a fleet of moveable move monitoring units, that are used on smaller flows, on investigations, and to verify the continued accuracy of the Company’s steady screens. “Moveable move meters carry out a significant position, however flexibility is necessary,” explains Olly Baldwyn, a Senior Advisor within the EA’s Nationwide Hydrometry Group. “They want to have the ability to measure shallow move circumstances each at fastened monitoring stations and at different distant places equivalent to abstraction factors… and that is the place we recognized a spot within the obtainable know-how.

“In 2018 we have been utilizing floating ADCP devices and moveable single-point velocity meters in our work, however neither of those options was best for water between 4cm and 30cm in depth. We subsequently included this in our procurement specs, with the extra requirement to have the ability to take multi-point velocity measurements extra effectively.”

Move monitoring on the EA informs flood warning and forecasting operations, in addition to serving to to handle and shield water assets. This consists of the administration of abstraction licences for ingesting water, agriculture and trade, in addition to the safety of water assets for recreation and biodiversity. Move monitoring additionally informs the Company’s work to observe long-term indicators of change in local weather or catchments.

Know-how growth
Explaining the corporate’s response to the chance, Andy Kenworthy from Nivus says: “We already manufactured fastened steady move monitoring units using ultrasonic cross-correlation know-how, so we targeted on the event of a conveyable model, that might ship the EA’s efficiency necessities in a light-weight, battery-powered instrument.

“A prototype was demonstrated in late 2018 and the primary analysis items have been delivered to the EA early the subsequent yr. These devices have been efficiently examined at reference websites, and manufacturing variations of the NivuFlow Stick have been obtainable quickly thereafter,” Kenworthy provides. “NivuFlow Stick devices at the moment are employed by the vast majority of the Company’s 23 hydrometry groups, and routinely used within the coaching of latest recruits. In addition to assembly the EA’s efficiency necessities, I do know the NivuFlow Stick is especially helpful in coaching periods as a result of it will probably join wirelessly with as much as 4 units concurrently – equivalent to mobiles, tablets and laptops.”

Abstract
The EA issued a problem to your complete instrumentation sector, which ensured that each firm had an equal alternative to develop a know-how that might meet the Company’s efficiency necessities. By responding positively to the problem, Nivus has plugged the know-how hole for the good thing about hydrologists worldwide.

Developed in accordance with the necessities of BS EN ISO 748:2021, the NivuFlow Stick is an easy to make use of, hand-held moveable instrument for quick, correct move velocity measurements utilising the ultrasonic cross-correlation measurement precept. In distinction with extra conventional strategies, it concurrently measures water velocities at a number of heights by way of the water column with very excessive decision. An progressive design makes the instrument easy to make use of, and signifies that even novice operators are in a position to derive an correct move velocity curve shortly and simply.

“Within the time that it takes a single-point velocity meter to make a single studying at one top within the water column, the NivuFlow Stick is ready calculate a full water depth velocity profile utilizing as much as 16 measurements, which signifies that monitoring work is quicker, safer and extra correct,” explains Andy Kenworthy.

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