Hint 1) Assume 18 > 21

2) volume of surface ocean = 3.857 * 10^16 m^3

3) Table 9.2

2. If the surface ocean (0100 m) should increase in temperature by 3C during the next century, how much will the thermal expansion of seawater contribute to a rise in sea level? (For this question, you will need to look up the equation for the thermal expansion of water as a function of temperature; try the Handbook of Chemistry and Physics). TABLE 9.2 Estimates of Total Marine Primary Productivity and the Proportion That Is New Production % of Area Mean Total global New Global new ocean (10m) production production production" production Province lg Cm yr) (10g Cyr ) (g Cm yr) (10g Cyr") Open ocean 90 326 130 42 18 5.9 Coastal zone 9.9 36 250 9.0 42 1.5 Upwelling area 0.36 420 0.15 85 0.03 Total 362 51 7.4 0.1 "Nere productivity defined as flux af 100 m. Source: From Knauer (1993). Used with permission of Springer-Verlag. 2. If the surface ocean (0100 m) should increase in temperature by 3C during the next century, how much will the thermal expansion of seawater contribute to a rise in sea level? (For this question, you will need to look up the equation for the thermal expansion of water as a function of temperature; try the Handbook of Chemistry and Physics). TABLE 9.2 Estimates of Total Marine Primary Productivity and the Proportion That Is New Production % of Area Mean Total global New Global new ocean (10m) production production production" production Province lg Cm yr) (10g Cyr ) (g Cm yr) (10g Cyr") Open ocean 90 326 130 42 18 5.9 Coastal zone 9.9 36 250 9.0 42 1.5 Upwelling area 0.36 420 0.15 85 0.03 Total 362 51 7.4 0.1 "Nere productivity defined as flux af 100 m. Source: From Knauer (1993). Used with permission of Springer-Verlag