Table 9-5: Amount of enzyme needed to resolve transfer velocity discrepancy, and effect of this in the net global air-sea CO2 flux.
 

weekly winds

weekly winds split by Rayleigh distn

   

OH- reaction rate*6

 

OH- reaction rate*6

enzyme distributionÞ

chl only

chloro & physiology

chl only

chloro & physiology

chl only

chloro & physiology

chl only

chloro & physiology

   

low cost

high cost

 

low cost

high cost

 

low cost

high cost

 

low cost

high cost

Global average transfer velocity without enzyme
(x10-2 mol m-2 yr -1m atm-1)

3.217

3.331

3.807

3.946

Net global air-sea CO2 flux without enzyme (Mt C yr-1)

1869

1851

2196

2190

Average enzyme concentration (nM) needed to increase
global average transfer velocity
to 5.3 x10-2 mol m-2 yr -1m atm-1

69.98

66.37

86.28

67.42

63.92

82.59

40.14

37.68

56.64

36.89

34.58

51.54

Net global air-sea CO2 flux due to this amount of enzyme

2370

2705

4340

2351

2671

4209

2582

2775

3828

2554

2732

3676

Net global air-sea CO2 flux:
% increase due to this enzyme

26.8

44.8

132.2

27.0

44.3

127.4

17.6

26.4

74.4

16.6

24.7

67.8

Average enzyme concentration (nM) needed to increase
global average transfer velocity
to 6.2 x10-2 mol m-2 yr -1m atm-1

112.3

107.2

137.4

110.6

105.5

134.6

83.9

80.0

112.5

81.9

78.0

108.6

Net global air-sea CO2 flux due to this amount of enzyme

2668

3183

5650

2661

3165

5533

2927

3278

5117

2913

3253

4985

Net global air-sea CO2 flux:
% increase due to this enzyme

42.8

70.3

202.3

43.7

71.0

198.9

33.3

49.3

133.1

33.0

48.5

127.6