Some Features of Turner Fluorometry in the Knysna Estuary Brian - - PowerPoint PPT Presentation

some features of turner fluorometry in the knysna estuary
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Some Features of Turner Fluorometry in the Knysna Estuary Brian - - PowerPoint PPT Presentation

Some Features of Turner Fluorometry in the Knysna Estuary Brian Allanson and Inga Chinnery Knysna Basin Project Field laboratory, Rhodes University, Knysna estuary@mweb.co.za Acknowledgements Our thanks are due to: Barloworld


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Some Features of Turner Fluorometry in the Knysna Estuary Brian Allanson and Inga Chinnery

Knysna Basin Project Field laboratory, Rhodes University, Knysna estuary@mweb.co.za

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Acknowledgements

  • Our thanks are due to:

– Barloworld – Rhodes University – Marine remote sensing unit – SANhydro tides Tokai, Cape Town – MRSU 2012 – Joclyn Fearon

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Figure 1. Marine Embayment, Knysna estuary

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Figure 2. Turner submersible fluorometer: left hand downloading data mode; right had submersible mode with battery pack in place.

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Figure 3a Knysna Estuary: Neap tide 14 – 17 Feb.2012

Water temperature °C

19 20 21 22 23 24 25

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Figure 3b Chlorophyll a µg/l

0.5 1 1.5 2 2.5 3 3.5

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Figure 3c Turbidity in NTU units

2 4 6 8 10 12 14 16 18 20

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Figure 4a. Stn 2 Ashmead Channel Spring Tide, 7 – 13 .03. 12 Temperature °C

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Figure 4b.Stn 2 Ashmead Channel Spring tide, 7 – 13.03.12 Chlorophyll a µg/l

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Figure 4c. Stn 2 Ashmead Channel Turbidity as NTU, 7 – 13.03.12

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Figure 5. Sea surface temperature (left) Chlorophyll a (right):15.01.12 Knysna marked by a black dot at 23° S

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Figure 6. SST (left) and Chla (right) 08.03 2012. Knysna lies at 23° South

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References

  • Allanson & Reed 1995;Aminot & Rey

2000;Cloern & Jassby 2110;Grange & Allanson 1995;Litaker et al. 1987;Lucas 1986: MRSU 2012;Muir & Perissinotto 2011; Roegner & Shanks2001;Smith (2008)Kotsedi et al. 2012;Snow& Adams 2005;Trner Designs 2012;Vorwerk et al.2008.