Journal
GEOPHYSICAL RESEARCH LETTERS
Volume 33, Issue 12, Pages -Publisher
AMER GEOPHYSICAL UNION
DOI: 10.1029/2006GL026011
Keywords
-
Categories
Ask authors/readers for more resources
We present a new 3-dimensional 1 degrees x 1 degrees gridded data set for the annual mean seawater oxygen isotope ratio (delta O-18) to use in oceanographic and paleoceanographic applications. It is constructed from a large set of observations made over the last 50 years combined with estimates from regional delta O-18 to salinity relationships in areas of sparse data. We use ocean fronts and water mass tracer concentrations to help define distinct water masses over which consistent local relationships are valid. The resulting data set compares well to the GEOSECS data (where available); however, in certain regions, particularly where sea ice is present, significant seasonality may bias the results. As an example application of this data set, we use the resulting surface delta O-18 as a boundary condition for isotope-enabled GISS ModelE to yield a more realistic comparison to the isotopic composition of precipitation data, thus quantifying the 'source effect' of delta O-18 on the isotopic composition of precipitation.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available