Annual sea surface temperature difference from normal, 2004

The ocean waters surrounding New Zealand vary in temperature from north to south. They interact with heat and moisture in the atmosphere and affect our weather. Long-term changes and short-term variability in sea-surface temperatures can affect marine processes, habitats, and species. Some species may find it hard to survive in changing environmental conditions.

This layer shows annual sea-surface temperature difference from normal for 2004 as part of the data series for years 1993 to 2013. "Normal" is defined as the average sea-surface temperature for 1993–2013.

NIWA’s sea-surface temperature archive is derived from the Advanced Very High Resolution Radiometer (AVHRR) satellite data it receives from the National Oceanic and Atmospheric Administration. The archive provides high spatial (approximately 1km) and high temporal (approximately 6-hourly in cloud-free locations) resolution estimates of sea-surface temperatures over the New Zealand region, dating from January 1993. Uddstrom and Oien (1999) and Uddstrom (2003) describe the methods used to derive and validate the data.

This dataset relates to the "Annual average sea-surface temperature" measure on the Environmental Indicators, Te taiao Aotearoa website.

Geometry: grid

Unit: percent

Further information can be found in:

Uddstrom, MJ (2003). Lessons from high-resolution satellite SSTs. Bulletin of the American Meteorological Society, 84(7), 896–897.

Uddstrom, MJ, & Oien, NA (1999). On the use of high resolution satellite data to describe the spatial and temporal variability of sea surface temperatures in the New Zealand region. Journal of Geophysical Research (Oceans) 104, chapter 9, 20729–20751.

Data and Resources

Additional Info

Field Value
Theme
Author Ministry for the Environment
Maintainer Ministry for the Environment
Maintainer Email Ministry for the Environment
Source https://data.mfe.govt.nz/layer/53032-annual-sea-surface-temperature-difference-from-normal-2004/
Source Created 2016-02-11T05:16:12.174391Z
Source Modified 2016-02-22T01:56:08.742084Z
Language English
Spatial {"type": "MultiPolygon", "coordinates": [[[[155.07776854957592, -52.82644820983797], [155.07776854957592, -28.866448209837966], [180.0, -28.866448209837966], [180.0, -52.82644820983797], [155.07776854957592, -52.82644820983797]]], [[[-180.0, -28.866448209837966], [-168.24223145042407, -28.866448209837966], [-168.24223145042407, -52.82644820983797], [-180.0, -52.82644820983797], [-180.0, -28.866448209837966]]]]}
Source Identifier https://data.mfe.govt.nz/layer/53032-annual-sea-surface-temperature-difference-from-normal-2004/
Dataset metadata created 2 February 2020, last updated 3 March 2025