Water & Atmosphere

NIWA’s flagship publication showcases our latest research and examines resource management issues across all sectors.

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Kim Thomas, NIWA’s southernmost technician, checking the solar tracker for the infrared spectrometer on the roof of the Arrival Heights laboratory, Antarctica, in October 2002. The infrared spectrometer – which measures a range of trace gases – is one of the instruments used in NIWA’s Antarctic atmospheric measurement programme. The programme includes tracking the progress of the ozone hole which forms in spring each year. See “NIWA’s southernmost technician and the 2002 ozone hole” for more details.

Soil erosion during heavy rainfall has resulted in the deposition of a thick layer of mud on an intertidal flat in this estuary, smothering much of the shellfish bed shown, and killing the shellfish. This is one example of how human activities in the surrounding catchment can impact on a fragile estuarine ecosystem. NIWA is developing and applying a range of modelling techniques to help understand and predict effects such as this.