Geoscience Reference
In-Depth Information
Table 1.
(Continued)
Annual rate
R
a
xt
Amplitude of
ftuctuationb
Mean± SD
c
Mean
<200m
Mean
>200m
Mean
whole
area
Mean
<200m
Mean
>200m
Mean
whole
area
Mean
<200m
Mean
>200m
Mean
whole
area
Mean
<200m
Mean
>200m
Mean
whole area
SSN03
0.457
0.342
0.456
0.70
A
0.54
D
0.66
A
12.05
9.56
9.74
2.62±3.09
2.45±2.99
2.55±2.85
N0
3a
υ
0.345
0.324
0.335
0.71
A
0.58
B
0.67
A
8.46
9.85
8.13
2.98±2.31
5.09±2.68
4.01±2.37
NO
d
3200
0.582
0.711
0.68
A
0.55
C
13.57
20.55
5.57±4.05
14.53± 6.17
SSDIN:
SSP
3.61
1.89
2.75
0.55
C
0.54
D
0.63
A
126.55
52.65
84.02
20.5± 30.7
14.9±16.8
17.8±21.2
DIN
av
:
P
av
1.66
0.75
1.21
0.70
A
0.57
B
0.69
A
40.26
23.24
28.65
14.0± 11.3
10.7± 6.3
12.3±8.4
DIN
200
:
Pd
200
1.51
1.04
0.74
A
0.64
A
31.26
27.3
13.8±8.6
14.0±7.8
SSSi:
SSDIN
-0.52
-0.46
-0.44
-0.75
A
-0.39
-0.67
A
12.32
22.68
9.69
4.1±3.3
5.4±5.7
4.3±3.2
Si
av
:
DIN
av
-0.46
-0.15
-0.22
- 0.71
A
- 0.46
-0.70
A
13.05
5.62
5.41
3.4±3.1
2.9±1.6
2.8±1.5
Si
200
:
DIN
d
200
-0.32
-0.10
-0.75
A
-0.65
A
7.29
2.8
2.87±2.02
1.85±0.8
Table 2.
The annual rate, climate trend coefficients (R
xt
) and the amplitude of fluctuations of the
environmental parameters in the nSCS during 1976-2004 (units: °Cy
−
1 for annual change in
temperature, and μmol l
−
1
y
−
1
for DO and nutrients).
Observation year
Location of the observation
Parameter, value
Data source
southern Hong Kong waters
(outside Pearl River estuary)
1980-1985
N0
3
-N, 1-3
Han et al. (1990)
1986
Pearl River estuary
DIN, 19.3
He et al. (2004)
1987
Pearl River estuary
N0
3
-N, 28.0 DIN, 31.7
Wang and Peng (1996)
1990
Pearl River estuary
DIN, 34.6
He etal. (2004)
1995
Pearl River estuary
DIN, 36.4
He etal. (2004)
1996
Pearl River estuary
N0
3
-N, 39.8
Cai (2002b)
1999 (summer)
Pearl River estuary
N0
3
-N, 48.9 DIN, 51.9
Lin et al. (2004)
1999 (summer)
Pearl River estuary
DIN, 53.2
Guan et al. (2003)
2002
Pearl River estuary
DIN, 76.4
He et al. (2004)
