GRIP Deuterium Excess Reveals Rapid and Orbital-Scale Changes in Greenland Moisture Origin
Top Cited Papers
- 1 July 2005
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 309 (5731) , 118-121
- https://doi.org/10.1126/science.1108575
Abstract
The Northern Hemisphere hydrological cycle is a key factor coupling ice sheets, ocean circulation, and polar amplification of climate change. Here we present a Northern Hemisphere deuterium excess profile covering one climatic cycle, constructed with the use of δ18O and δD Greenland Ice Core Project (GRIP) records. Past changes in Greenland source and site temperatures are quantified with precipitation seasonality taken into account. The imprint of obliquity is evidenced in the site-to-source temperature gradient at orbital scale. At the millennial time scale, GRIP source temperature changes reflect southward shifts of the geographical locations of moisture sources during cold events, and these rapid shifts are associated with large-scale changes in atmospheric circulation.Keywords
This publication has 37 references indexed in Scilit:
- A continuous record of temperature evolution over a sequence of Dansgaard‐Oeschger events during Marine Isotopic Stage 4 (76 to 62 kyr BP)Geophysical Research Letters, 2004
- Global ocean response to orbital forcing in the HolocenePaleoceanography and Paleoclimatology, 2003
- Impact of the North American ice‐sheet orography on the Last Glacial Maximum eddies and snowfallGeophysical Research Letters, 2000
- Borehole versus isotope temperatures on Greenland: Seasonality does matterGeophysical Research Letters, 2000
- Timescales for dust variability in the Greenland Ice Core Project (GRIP) ice core in the last 100,000 yearsJournal of Geophysical Research: Atmospheres, 1999
- Changes in Meridional Temperature and Salinity Gradients in the North Atlantic Ocean (30°–72°N) during the Last Interglacial PeriodPaleoceanography and Paleoclimatology, 1999
- GCM analysis of local influences on ice core δ signalsGeophysical Research Letters, 1997
- Temperature and accumulation at the Greenland Summit: Comparison of high‐resolution isotope profiles and satellite passive microwave brightness temperature trendsJournal of Geophysical Research: Atmospheres, 1995
- Deuterium and oxygen 18 in precipitation: Isotopic model, including mixed cloud processesJournal of Geophysical Research: Atmospheres, 1994
- Long-term variations of the Earth's orbital elementsCelestial Mechanics and Dynamical Astronomy, 1977