Coasts

Submerged plants have a number of advantages that favour their use as indicators of lake ecological condition.

Tsunami is a Japanese word meaning great wave in harbour.

Useful information and resources on New Zealand's marine flora and invertebrate fauna.

One of the major consequences of climate change is rising global sea levels.

This system combines daily sea-level data from NIWA, regional councils, port companies, Antarctica NZ, Bureau of Meteorology and territorial authorities.

Charts of coastal bathymetry, sediment, and other information are available for purchase.

If you're collecting sea shells at the beach this summer and wondering what they are, NIWA is here to help.

Dog Island levels

Estuaries are at the bottom of the freshwater drainage network and, effectively, are a part of it.

NIWA scientists have written a guide for managing mangroves, prompted by a desire for people to learn more about mangrove ecosystems, and what happens when they are removed.