Liu Z, Ning X, Cai Y (1998) Distribution of size-fractionated chlorophyll a and productivity of phytoplankton in the Beibu Gulf. Acta Oceanol Sin 20:50â57 (in ...
The following supplement accompanies the article
Factors affecting chlorophyll a concentration in the central Beibu Gulf, South China Sea Andrea Bauer, Joanna J. Waniek* Leibniz Institute for Baltic Sea Research Warnemünde, Department of Marine Chemistry, 18119 Rostock, Germany *Email: Marine Ecology Progress Series 474: 67–88 (2013)
Supplement. Meteorological forcing used for the modeled years 2000 to 1010, more in situ data for model validation, and pixels available for the central Beibu Gulf from SeaWiFS.
Fig. S1. Daily meteorological forcing for the years 2000 to 2010: (a) absolute wind velocity, (b) dewpoint temperature, and (c) solar irradiance as downward longwave radiation flux (DLRF). An apparent shift of the timing of the first strong wind event in autumn from year to year is noticeable. In 2000 it appeared at the end of August and shifted towards the beginning of October in 2010, whereas the years 2003 and 2004 differ and show a relatively consistent wind forcing without very strong wind events in late summer and autumn
Fig. S2. Average (a) temperature, (b) chlorophyll, and (c) dissolved inorganic nitrogen (DIN) depth profiles (black lines) with respective standard deviations (black dotted lines) for the period of stratification in the mean modeled year. The grey solid lines are in situ measurements during the FENDOU 5 cruise (September/October 2009), the grey dashed line represents in situ measurements conducted by the State Oceanic Administration (August 2009, August 2010, September 2011), the grey dotted lines indicate data published by Liu et al. (1998; May/June 1994) and the grey dash-dotted line represents values published by Lü et al. (2008; June 1960)
Fig. S3. Comparison of modeled (a) temperature, (b) chlorophyll, and (c) dissolved inorganic nitrogen (DIN) depth profiles (black lines) and measured profiles (at 2 different stations; grey lines) for the same day. Temperature profiles show a good agreement, whereas 1 chlorophyll and both DIN in situ profiles measured for 1 point in time during the FENDOU 5 cruise differ from the modeled daily mean profile. The profiles clearly show the degree of variability in the system induced by tides (included in the model) and horizontal advection (not included)
Table S1. Number of pixels for surface chlorophyll concentration available for the central Beibu Gulf from SEAWiFS
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
January
71
30
8
27
30
21
32
11
0
60
40
February
10
45
100
103
101
11
87
15
0
114
84
March
0
71
12
64
0
1
12
13
0
1
89
April
101
86
121
121
121
78
118
117
68
121
43
May
69
120
94
116
121
121
121
70
98
0
121
June
105
91
121
78
121
90
121
121
0
65
30
July
112
98
115
121
118
117
121
121
0
120
85
August
121
113
121
121
121
121
114
111
92
121
92
September
121
98
97
111
119
115
121
108
93
0
120
October
121
114
121
121
91
111
116
118
112
0
93
November
116
118
97
99
99
120
115
72
99
46
19
December
35
78
48
1
11
10
13
32
20
19
0
LITERATURE CITED Liu Z, Ning X, Cai Y (1998) Distribution of size-fractionated chlorophyll a and productivity of phytoplankton in the Beibu Gulf. Acta Oceanol Sin 20:50−57 (in Chinese) Lü X, Qiao F, Wang G, Xia C, Yuan Y (2008) Upwelling off the west coast of Hainan Island in summer: its detection and mechanisms. Geophys Res Lett 35: L02604, doi:10.1029/2007 GL032440
