SOLAS Workshop 2003 Harrison Group

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SOLAS Workshop 2003Harrison Group

• SERIES Chlorophyll Data

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Euphotic Zone and Mixed Layer Depth
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SERIES Total Chlorophyll a
10 11 12 13 14 15 16 17 18 19
20 21 22 23 24 25 26 27 28
IN Patch
OUT Patch
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SERIES Size-Fractionated Chlorophyll a (Surface)
Phase I Jul 9 - 18 Phase I and II Jul
19 -29
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SERIES Diatom Abundance (Surface)
Phase I Phase I and II
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Pseudo-nitzschia turgidula
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A Few Take-Home Numbers
Max. Surface Chlorophyll a 5.3 mg/L (Jul
27) Max. Depth-Integrated Chlorophyll a 156.7
mg/m2 (Jul 26) Phase I Jul 9 Jul 19 Phase
II Jul 20 Jul 27 Max. chlorophyll a 2.4
mg/L Max. chlorophyll a 5.3 mg/L
Microplankton 45 Microplankton 79
Nanoplankton 44 Nanoplankton 14
Picoplankton 11 Picoplankton 8
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SOLAS Workshop 2003Harrison Group

• SERIES Nutrient Data

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SERIES Nutrient Profiles
10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28
Nitrate (NO3)
Silicic Acid (SiO3)
Phosphate (PO4)
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SERIES Surface Nutrients
In Patch
Out Patch
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SERIES Surface Dissolved Nutrient Ratios
SiO3N03
NO3PO4
SiO3PO4
Date
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A Few Take-Home Numbers
Nutrient Initial Final D Nitrate 9.58
mM 3.56 mM 6.02 mM Silicic Acid 11.60 mM 0.23
mM 11.37 mM Phosphate 0.97 mM 0.42 mM 0.55
mM D Ratios Phase I Phase II SiN
(1) 0.8 1.1 2.6 4.2 NP (16) 8.6 21.2
8.2 17.2 SiP (16) 10.6 23.0 34.4 66.3