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Sowers, Todd A; Alley, Richard B; Jubenville, J (2003): GISP2 ice core N2O data. PANGAEA, https://doi.org/10.1594/PANGAEA.205718, Supplement to: Sowers, TA et al. (2003): Ice core records of atmospheric N2O covering the last 106,000 years. Science, 301(5635), 945-948, https://doi.org/10.1126/science.1085293

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Abstract:
Paleoatmospheric records of trace-gas concentrations recovered from ice cores provide important sources of information on many biogeochemical cycles involving carbon, nitrogen, and oxygen. Here, we present a 106,000-year record of atmospheric nitrous oxide (N2O) along with corresponding isotopic records spanning the last 30,000 years, which together suggest minimal changes in the ratio of marine to terrestrial N2O production. During the last glacial termination, both marine and oceanic N2O emissions increased by 40 ± 8%. We speculate that our records do not support those hypotheses that invoke enhanced export production to explain low carbon dioxide values during glacial periods.
Project(s):
Greenland Ice Core Projects (GRIP/GISP/NGRIP)
Coverage:
Latitude: 72.970000 * Longitude: -38.800000
Date/Time Start: 1990-01-01T00:39:00 * Date/Time End: 1990-01-01T00:39:00
Minimum DEPTH, ice/snow: 116.00 m * Maximum DEPTH, ice/snow: 2780.10 m
Event(s):
GISP2 * Latitude: 72.970000 * Longitude: -38.800000 * Date/Time: 1990-01-01T00:39:00 * Elevation: 3208.0 m * Recovery: 3053 m * Campaign: GISP * Basis: Sampling/drilling ice * Method/Device: Drilling/drill rig (DRILL) * Comment: GISP2 is a combination of the shallow B and the deeper D core; about 200 ka
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DEPTH, ice/snowDepth ice/snowmGeocode
2Gas ageGas ageka BPSowers, Todd A+/- 5 to 1000 years
3Nitrous oxideN2Oµg/kgSowers, Todd A+/- 4 ppbv
4Standard deviationStd dev±Sowers, Todd Auncertainty
Size:
333 data points

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