The Marine Environment Classification (MEC), a GIS-based environmental classification of the marine environment of the New Zealand region, is an ecosystem-based spatial framework designed for marine management purposes.
This service previously provided weekly maps of chlorophyll a concentration, temperature and salinity for the Marlborough Sounds. This service is no longer being operated.
NIWA has a range of online tools and information relating to tides, including a tide forecaster, yearly tide envelopes and storm tide "red alert" days.
