October 31, 2020

Meteorology for mariners – Introduction

Last year we had a look at the causes and elements of weather.  This year we will be looking at the various weather systems and the weather the mariner can expect from them.  We will also be covering tropical storms, the danger they pose and the action the mariner can […]
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October 31, 2020

Planetary wind circulation

The planetary wind circulation for the “ideal” earth which would be covered with water is shown in the following sketch:
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October 31, 2020

Oceanic winds

The oceanic winds experienced in the various climate zones are described in the following sub paragraphs: Doldrums. The doldrums is that part of the ocean situated in the equatorial trough of low pressure between the trade winds of the two hemispheres. This weather in this zone is characterised by calms, […]
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October 31, 2020

Atmospheric pressure systems

Last year we spoke about two atmospheric pressure systems, namely the Depression and the Anti-cyclone. This year we continue with systems which are basically derivatives of the first two: High pressure ridges. They are also known as “wedges”. It is an extension of an anti-cyclone and it could extend in […]
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