Once a year, technicians from NIWA’s North Island Field Team don helmets and head lamps to check a network of CO2 sensors in the world-renowned Waitomo Caves. The sensors help make sure that heavy breathing visitors aren’t wrecking the caves’ precious natural structures and microclimate.
Since the early 2000s, NIWA has been part of the international Argo programme. Argo floats takes the pulse of the oceans, collecting and distributing temperature and salinity observations from a global network of more than 3700 underwater robots.
Despite many centuries of maritime exploration, only a fraction of our planet's seafloor has been observed. NIWA Deepsea Scientist Di Tracey tells us what it feels like to probe deep beneath the waves to see what's living on the ocean floor.
Data loggers range from simple standalone recording devices that can be manually downloaded, to Internet-capable remote terminals that can push their data to a server that users can access via an Internet browser.
There are different types of instrument available for measuring water level. Each has its strengths and weaknesses. It's important to select an instrument that's right for your application to ensure you'll get reliable data.
Water Quality instruments may measure one or more parameters including: electrical conductivity (EC), dissolved oxygen (DO), water temperature, turbidity, total dissolved solids (TDS), Redox, specific ions and pH.