On 1 July 2025, NIWA merged with GNS Science to become Earth Sciences New Zealand.

Te Toro Āhuarangi o Anamata - Future Climate Explorer

An interactive tool that supports adaptation planning through the exploration of our environment in future climate scenarios.

Te Toro Āhuarangi o Anamata is a web browser application for displaying the latest climate change projections (CMIP6) on an interactive map.

This tool will let you access and visualise the latest climate change projections for your areas of interest and to explore what the climate may look like under different greenhouse gas emission scenarios. This tool may also be used to assist in discussions with whānau regarding the effects of climate change on various freshwater taonga species, customary resources, and practices, as well as to aid in climate adaptation planning.

The app can be accessed at the following link: https://shiny.niwa.co.nz/climate-change/

For the optimal experience, use the app on tablets, laptops and desktop computers (it is not mobile enabled).

The app enables users to zoom into specific areas of interest while overlaying different variables and climate scenarios for different time periods.

It helps you to visualise how climate variables may change over different timescales and greenhouse gas emission scenarios.

Unique to this app, users are also able to overlay their waterways and the distribution of different freshwater fish species of interest (as voluntarily recorded in the New Zealand Freshwater Fish Database).

The web browser application has been designed so that you can view two identical map windows side-by-side for easier comparisons.

Combinations you can explore using Te Toro Āhuarangi o Anamata:

Climate variableClimate scenarioTime periods (showing changes since a 1995-2015 baselineSeasonFreshwater data
Rainfall
Air temperature
Very hot days (>30°C)
Historic
Low emissions
Mid emissions
High emissions
2021-2040
2041-2060
2080-2099
Annual
Summer
Autumn
Winter
Spring  

(except for ‘Very Hot Days’ which only covers annual and summer)
Shortfin tuna
Longfin tuna
Inanga
Giant kōkopu
Shortjaw kōkopu
Banded kōkopu
Kōaro
Kākahi
Kōura
Pōrohe Kanakana/Piharau

If you want to know more about any of the combinations you can explore and what they represent, look out for the blue Help and About buttons located at the top right of the app screen.

The app was developed by NIWA researchers and has been tested by Toitū Ngā Taonga Waimāori Whānau Whitebait Livelihoods, Te Mouriora Te Tai Ao focus study teams and NIWA’s Te Kūwaha team.

The name of the app, ‘Te Toro Āhuarangi o Anamata’, was provided by NIWA Pou Ārahi, Jay Hepi, to encapsulate the concept of exploring and understanding the current climate while preparing for future changes. It combines elements of exploration ("Te Toro"), climate ("Āhuarangi"), and the future ("Anamata"), reflecting the app's purpose in guiding users through climate-related knowledge and preparedness.

This research project is part of Toitū Ngā Taonga Waimāori  - Cultural keystone species, Māori livelihoods and climate change, is a research programme funded by MBIE (C01X2206).

Te Toro Āhuarangi o Anamata contact: Rachel Smith.