Freshwater
Data for New Zealand Freshwaters.
More Information about ESNZ freshwater science and capabilities can be found here.
Products

Hydrometric station data (daily)
Observational Data collected at hydrometric stations across New Zealand

Freshwater Fish Database
Freshwater fish observations covering sample sites up and down New Zealand.

Freshwater Biology data
Freshwater biology data collected during projects across New Zealand

National depth to groundwater spatial data
National geospatial datasets of depth to groundwater derived from observations

River water quality datasets
River water quality measurements derived from samples

Flood hazard for New Zealand flood plains (by region)
100-year flood hazard for current and future climate for New Zealand floodplains

Flood hazard for New Zealand flood plains (by domain)
100-year flood hazard for current and future climate for New Zealand floodplains

Submerged aquatic lake plants
Tool to assess and report on the ecological condition of New Zealand lakes.

Digital River Network
Digital geospatial database of New Zealand river segments and related catchments

National Groundwater Monitoring Programme
Groundwater source location, groundwater quality indicators, tracer measurements for 110 sites

Flood flow and frequency
Estimates of peak flood flows for over 600,000 river segments

Hydrogeological basement map
New Zealand’s depth to hydrogeological basement map

New Zealand Aquifer Potential Map
The Aquifer Potential map shows a good match with the most recent New Zealand national aquifer boundary

New Zealand Groundwater Recharge Model
Monthly data of 1km x 1km rainfall recharge to groundwater, from Jan-2000 – Dec-2014

National Water Table
Model-derived steady-state mean water table at the New Zealand scale, 250m x 250m resolution

Aquatic invertebrate traits database
500 Aquatic invertebrate taxa are described in this database