Instrument Systems Update 22, June 2018

19 June 2018

In this issue: NIWA works with Christchurch City Council to remap the city’s post-quake water flows and limit the impact of future floods; nitrate is the most widespread contaminant present in NZ groundwater—is it time for continuous nitrate monitoring and is it possible?; we unveil NIWA’s new laser water- level sensor—the answer to precise, remote, real-time groundwater measurements.

Meeting the flood challenge in post-quake Christchurch

The 2011 earthquakes ruptured much of Christchurch’s infrastructure—including its network of drains and open waterways. NIWA is working with the city council to remap storm-water flows across the city and provide the data needed to limit future flooding for residents.

Time for a closer look at nitrates?

Nitrate (oxidised nitrogen) is the most widespread contaminant present in New Zealand groundwater - a concern for human health, the environment, and a potential barrier for primary sector exports. We investigate whether we need to monitor nitrate concentration continuously and look at progress in practical nitrate monitoring.

Shining new light on ground water measurements

NIWA’s LWL6001-S, is putting groundwater levels under the spotlight. The new laser sensor accurately measures groundwater surface levels to sub-millimetre precision. This sensor is ideal for anyone who needs the continuous, reliable data needed to effectively manage groundwater resources.

NIWA

Instrument Systems Update 22, June 2018

Meeting the flood challenge in post-quake Christchurch

Time for a closer look at nitrates?

Shining new light on ground water measurements

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