Atmospheric analysis

Station height is in metres above mean sea level. Years of data are the number of complete years of data for the 1981 – 2010 period.

Mountainous areas are subject to heavy snowfalls, high winds, and low temperatures. Semi-permanent snow and ice fields exist at about 1000-1100 metres during winter.

Once in freshwater, glass eels develop into darker pigmented juvenile eels known as elvers.

NIWA’s climate scientists can now confirm what you may have suspected. After carefully poring through more than a century’s worth of data, it has been officially determined that winter 2022 was Aotearoa New Zealand’s warmest and wettest on record.

View annual, seasonal and monthly summaries of temperature, rainfall and sunshine data from across New Zealand.

A carbon neutral activity is one that has a carbon footprint of zero.

Tuna or freshwater eels are a very significant, widely-valued, heavily-exploited, culturally iconic mahinga kai resource.

A participatory project empowering communities with self-help tools to improve water, sanitation and hygiene.

What are the potential sources of chemical contamination from agricultural activities?

In comparison with regions exposed to the west, Gisborne experiences a greater number of weather and climatic extremes.

Water clarity or turbidity is the cloudiness or haziness in a fluid caused by individual small particles (suspended solids).

Impacts of hydro-electric activities on water quality and mahinga kai.