| Title | Aerosol radiative forcing and climate sensitivity deduced from the Last Glacial Maximum to Holocene transition |
| Author | Chylek, P.; Lohmann, U. |
| Author Affil | Chylek, P., Los Alamos National Laboratory, Space and Remote Sensing, Los Alamos, NM. Other: ETH Zurich, Switzerland |
| Source | Geophysical Research Letters, 35(4), Citation L04804. Publisher: American Geophysical Union, Washington, DC, United States. ISSN: 0094-8276 |
| Publication Date | 2008 |
| Notes | In English. Based on Publisher- supplied data GeoRef Acc. No: 288053. CRREL Acc. No: 63000691 |
| Index Terms | aerosols; dust; hydrocarbons; optical properties; Pleistocene; Quaternary deposits; sediments; temperature; Antarctica--Vostok Station; aliphatic hydrocarbons; alkanes; Antarctica; atmosphere; carbon dioxide; Cenozoic; clastic sediments; climate effects; concentration; Holocene; ice cores; last glacial maximum; methane; organic compounds; paleotemperature; Quaternary; sensitivity analysis; transport; Vostok Station |
| Abstract | We use the temperature, carbon dioxide, methane, and dust concentration record from the Vostok ice core to deduce the aerosol radiative forcing during the Last Glacial Maximum (LGM) to Holocene transition and the climate sensitivity. A novel feature of our analysis is the use of a cooling period between about 42 KYBP (thousand years before present) and LGM to provide a constraint on the aerosol radiative forcing. The ECHAM5 model simulation suggests that the aerosol optical depth during the LGM may have been almost twice the current value (increase from 0.17 to 0.32). (mod. journ. abst.) |
| URL | http://hdl.handle.net/10.1029/2007GL032759 |
| Publication Type | journal article |
| Record ID | 85011 |