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Home: TRD: Resource utilisation: AGRI-OUTLOOK: WIND ROSES FOR December 2010

This section deals with wind roses which are compilations of wind information collected from various ARC-ISCW weather stations (WS) situated on various farms within the province.   The information gathered come from the following WS, they being at Voorstekop (near Heidelberg), Zandvliet (near Ashton), Langgewens (near Malmesbury), Oudtshoorn and Outeniqua (near George).

The approach is to compare this month’s wind rose with last year’s and the long term mean, accordingly three wind roses are presented for each WS.

During December 2010 winds with a southerly to south easterly component dominated as can be expected in the middle of summer. There was a stronger southerly to easterly component during December 2010 than during December 2009 and the long-term average for December.  This is an indication of more frequent and stronger ridging of the Atlantic Ocean Anticyclone to the south of the country that favoured above-average rainfall over most of the interior as well as along the eastern coastal areas of the Western Cape.       

Voorstekop

December mean 2010

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December 2009
Voorstekop: December  2007
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Long term mean
Voorstekop: Long term winds
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Zandvliet

December mean 2010
Zandvliet: December  Mean 2010
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December 2009
Zandvliet: December  2007
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Long Term mean
Zandvliet: Long term mean
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Langgewens

December mean 2010
Langgewens: December  mean 2010
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December 2009
Langgewens: December  2010
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Long term wind rose
Langgewens: December  2007
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Oudtshoorn

December mean 2010
Oudtshoorn: December 2010
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December 2009
Oudtshoorn: December  mean 2007
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Long term wind rose
Oudtshoorn:Long term mean
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Outeniqua

December mean 2010
Outeniqua: December 2010
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December 2009
Outeniqua: December  mean 2007
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Long term wind rose
Outeniqua:Long term mean
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