A cloud forming over the ocean contains a mass of water vapor with a D to 1H ratio of 1.389 x 10-4. The ratio of D to 1H in the ocean water, which can be considered as representative of SMOW, is 1.492 x 10-4.
a) Determine the fractionation factor (a) between the ocean water and the water vapor contained in the cloud.
b) What is the air temperature over the ocean where this cloud is forming?
c) Express the ratio of D to 1H in the vapor in delta (d) notation (i.e., as dD).
A cloud forming over the ocean contains a mass of water vapor with a D to 1H ratio of 1.389 x 10-4. The ratio of D to 1H in the ocean water, which can be considered as representative of SMOW, is 1.492 x 10-4.
a) Determine the fractionation factor (a) between the ocean water and the water vapor contained in the cloud.
b) What is the air temperature over the ocean where this cloud is forming?
c) Express the ratio of D to 1H in the vapor in delta (d) notation (i.e., as dD).
d) As the cloud moves away from its source, what is the dD value of the remaining vapor after 25% of the vapor has condensed as rain? What is the dD value of the rain at this time?
