Kōrero: Magnetic field

Hydrographic survey map

This map of New Zealand, produced by the British Admiralty, was based on survey work undertaken by HMS Acheron and HMS Pandora from 1848 to 1855. Measurements of magnetic declination were taken in the many harbours around the coast.

Use the zoom to find the magnetic declination at different latitudes (shown as seven circles).

Using this item

Auckland City Libraries - Tāmaki Pātaka Kōrero

Permission of Auckland City Libraries Tāmaki Pātaka Kōrero must be obtained before any re-use of this image.

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Me pēnei te tohu i te whārangi:

Tony Hurst, 'Magnetic field - Magnetic measurements in New Zealand', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/zoomify/9220/hydrographic-survey-map (accessed 16 October 2019)

Story by Tony Hurst, published 12 Jun 2006