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Evidence of change in Greenland moisture source (2)
GRIP Deuterium Excess reveals rapid and orbital scale changes in moisture origin

Editor: PAGES IPO
Author: V. Masson-Delmotte, J. Jouzel, A. Landais, M. Stievenard, S.J. Johnson, J.W.C. White, M.Werner, A. Sveinbjornsdottir, K. Fuhrer

Product Type: PPT slide

Credits: V. Masson-Delmotte et al., 2005: GRIP Deuterium Excess Reveals Rapid and Orbital-Scale Changes in Greenland Moisture Origin; Science 309: 118 - 121

Short Description: From top to bottom : Log(Ca)[Fuhrer, 1999 #1262], 200-yr reconstructed site-source temperature gradient (black) and obliquity fluctuations (blue); site temperature reconstructed using various methods (spatial slope without seasonality correction, green; our inversion with seasonality correction but without source correction, red; our full isotopic inversion with seasonality correction, black; the use of a constant slope fitting with the LGM borehole estimate, blue); source temperature reconstruction from full inversion. Results are displayed as anomalies from modern conditions (present-day GRIP site temperature is ~-35°C and GRIP source temperature is ~20°C). Bold lines represent smoothed reconstructions as for Figure 1.

Year: 2005

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> PDF - 240 KB
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Topics:
Time scales: Pleistocene (~x00'000 years)
Time scales: Holocene (~10'000 years)
Time scales: Abrupt events
Archives and Topics: Ice cores / Glaciers
Parameters: Temperature
Parameters: Hydrological balance
Parameters: Isotopes
Parameters: Insolation
Parameters: Chemical tracers
Locations: Arctic / Antarctic
Locations: Northern Hemisphere
Others: Interhemispheric phasing


Added: 12.09.05