Earth surface evaporative process: A case study from the Great Lakes region of the United States based on deuterium excess in precipitation

Details Earth surface evaporative process: A case study from the Great Lakes region of the United States based on deuterium excess in precipitation Earth surface evaporative process: A case study from the Great Lakes region of the United States based on deuterium excess in precipitation

Oct 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995gecoa..59.4279m&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 59, Issue 20, pp.4279-4283

Physics

14

Scientific paper

The "deuterium excess" parameter in rain, defined as d = D - 8 18 O, is a powerful geophysical tool which can be used to estimate secondary processes that influence atmospheric vapor content in the evaporation-condensation cycle in nature. The d -excess has been calculated, based on the systematic analysis of the stable oxygen and hydrogen isotope ratios, in precipitation samples from Kalamazoo, southwest Michigan. The results show that moisture derived from the evaporation of Lake Michigan contributes between 9-16% during the summer months to the atmospheric vapor load in the region. Admittedly, this estimate is an upper value since in our model we have assumed that transpiration from leaf surfaces is minimal compared to the evaporation from Lake Michigan. It is therefore obvious that large freshwater systems need to be regarded as a potentially significant source of atmospheric vapor load. Isotopic investigations such as this will enable to attain quantitative estimates of this important aspect, a knowledge of which, will enhance the usefulness of or perhaps even be essential in calculations based on many atmospheric circulation models.

Affiliated with

Also associated with

No associations

Rating

Earth surface evaporative process: A case study from the Great Lakes region of the United States based on deuterium excess in precipitation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Earth surface evaporative process: A case study from the Great Lakes region of the United States based on deuterium excess in precipitation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Earth surface evaporative process: A case study from the Great Lakes region of the United States based on deuterium excess in precipitation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1353605