Creative Commons Attribution 3.0 New Zealand
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This dataset was first added to MfE Data Service on 14 Oct 2016.
The ocean storm index estimates the number of days in a year when wind speeds exceed gale and storm force on the Beaufort Scale. In a gale, sea conditions are rough and waves can be over six metres high. In a storm, waves can be over 10 metres high. To put this into context, on land a near gale would make walking difficult, and a storm would cause some damage to roofs, chimneys, and trees. Climate change could lead to changes in the frequency and intensity of storms. More frequent and intense storms will likely be a stressor for habitats and species.
The ocean storm index estimates the number of days that wind speeds exceed gale and storm force on the Beaufort Scale. The Beaufort Scale is a widely used international classification that rates sea conditions from 0 (calm) to 12 (hurricane). We report on estimated wind speeds broken down to:
- gales – measure 8 on the scale, have rough sea conditions with wind speeds of approximately 62–74 km per hour and wave heights of 5.5 metres
- storms – measure 10 on the scale, have wind speeds of approximately 89–102 km per hour and wave heights of 9–11.5 metres (McDonald & Parsons, 2016).
This data relates to the average number of days wind speed exceeded gale force (Beaufort Scale 8) from 1979–2015.
Creative Commons Attribution 3.0 New Zealand
You may use this work for commercial purposes.
You must attribute the creator in your own works.
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1. | Data quality information for Average number of days wind speed exceeded gale force | 288 KB |
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Information | |
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Category | Environmental Reporting > Marine > Ocean acidity and climate change |
Tags | BOUNDARIES, ECOLOGY-Habitat, FAUNA-Vertebrates, MARINE, MARINE-Biology, New Zealand, Our Marine Environment 2016 |
Regions | Oceania |
Metadata | ISO 19115/19139, Dublin Core |
Technical Details | |
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Layer ID | 53461 |
Data type | Grid |
Resolution | About 47632.000m |
Services | Raster Query API, Catalog Service (CS-W), data.govt.nz Atom Feed |
History | |
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Added | 14 Oct 2016 |
Revisions | 6 - Browse all revisions |
Current revision | Imported on Oct. 14, 2016 from 2 GeoTIFF sources in WGS 84. |
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