Snow Pit Data from Greenland Summit, 1989 to 1993 Chemistry and
isotope information from snow pits dug at the Summit area of
Greenland, 1989-1993 includes major ions (Na, K, Mg, Ca, Cl,
NO3, SO4), oxygen isotopes (18O) and H2O2. Four snow pits were
dug and sampled in 1989, three snow pits in 1990, two in 1991,
one in 1992 and one in 1993. All snow pits had a 3 cm sampling
interval except the snow pits in 1990, which had either a 3 cm
or 5 cm sampling interval. Chemistry and isotope information
were obtained from each of the snow pits. The pits and surface
snow samples were collected by the Glacier Research Group (GRG),
using established protocols to prevent contamination. The
samples collected in 1991 were analyzed at the GISP2 drilling
camp. All data except the oxygen isotope data, which is from the
University of Washington, were generated by GRG at the
University of New Hampshire. The following example shows how to
cite the use of this data set in a publication. For more
information, see our Use and Copyrig