Comment on the Sources: Please acknowledge receipt of these GISP2 data from the GISP2 archive at NSIDC.
Global Seawater Oxygen-18 Database
All data are searchable by location, depth, temperature, salinity, O18
content, deuterium content, year, month, and reference. Selected
fields of interest can be easily downloaded.
Some graphical output is also provided (locations of matching data
points, simple scatter plots of selected fields, and (soon) automatic
linear regressions of selected data).
You can access the database at
http://www.giss.nasa.gov/data/o18data