Coasts

Data source – NIWA
Latest data The upper plot compares raw data (blue) and forecast tide (red). When the two curves are aligned there is no storm surge, which is the elevation or depression of sea level as a result of meteorological conditions. But if the raw data lie above or below the forecast tide, it means we have positive or negative storm surge. The lower plot compares storm surge (SS) with inverted barometer (IB), which is derived from atmospheric pressure. When the two curves are aligned it means that the storm surge is being driven by local pressure changes.

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These endemic freshwater crustaceans are truly living fossils that originated in Gondwana at least 325 million years ago and have changed little morphologically since that time.

Over the past couple of days Tangaroa has come through rough seas although the conditions have not managed to dampen our spirits on this exciting journey.

We have departed and so our adventure begins!

New Zealand conducted a major biological survey of the Ross Sea, in the Antarctic, as part of the Census of Antarctic Marine Life (CAML) and International Polar Year (IPY).

These guidelines outline a recommended minimum set of methods for a community group interested in following habitat changes in an estuary.

Modern marine geoscience requires accurate and detailed subsurface information for the mapping of geologic structures and sedimentary sequences beneath the continental margin. In order to acquire this information NIWA purchased a Multi Channel Seismic system (MCS) in December 1996, consisting of a 24 channel streamer, seismic source and acquisition hardware. 

NIWA's Becton Dickinson FACSCalibur flow cytometer supports a wide range of research and commercial applications.

Over the past decade, NIWA has published many popular articles that deal with estuaries - this overview is intended to bring together and make whole sense of the information published to date in the various popular articles.