Atmospheric impact of the 1783?1784 Laki Eruption: Part II Climatic effect of sulphate aerosol
نویسندگان
چکیده
HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. Atmospheric impact of the 1783?1784 Laki Eruption: Part II Climatic effect of sulphate aerosol E. J. Highwood, D. S. Stevenson
منابع مشابه
Climatic impact of the 1783--1784 Laki eruption
Introduction Conclusions References Tables Figures Back Close Abstract Introduction Conclusions References Tables Figures Back Close Abstract The long 1783–1784 eruption of Laki, in southern Iceland, was one of the first eruptions to have been linked to an observed climate anomaly, having been held responsible for cold temperatures over much of the Northern Hemisphere in the period 1783–1785. R...
متن کاملAtmospheric impact of the 1783–1784 Laki eruption: Part I Chemistry modelling
Results from the first chemistry-transport model study of the impact of the 1783–1784 Laki fissure eruption (Iceland: 64 N, 17 W) upon atmospheric composition are presented. The eruption released an estimated 61 Tg(S) as SO2 into the troposphere and lower stratosphere. The model has a high resolution tropopause region, and detailed sulphur chemistry. The simulated SO2 plume spreads over much of...
متن کاملAtmospheric Impact of the 1783 - 1784 Laki
3 of basalt, and released an estimated 122 Tg of SO 2. The impact of this release upon the chemical composition of the atmosphere has been simulated with a global 3-D chemical-transport model. The model suggests that the SO 2 generated a sulphate aerosol veil over much of the northern hemisphere during the summer of 1783, in agreement with observations of a widespread`dry fog'. In the model, ov...
متن کاملAtmospheric impact of the 1783 Laki eruption
Atmospheric impact of the 1783–1784 Laki eruption: Part I Chemistry modelling D. S. Stevenson, C. E. Johnson, E. J. Highwood, V. Gauci, W. J. Collins, and R. G. Derwent Institute for Meteorology, University of Edinburgh, Edinburgh, UK Met Office, Bracknell, UK Department of Meteorology, University of Reading, UK Department of Earth Sciences, The Open University, UK Received: 29 November 2002 – ...
متن کاملSulfur isotope evidence of little or no stratospheric impact by the 1783 Laki volcanic eruption
[1] Historic records and research have suggested that the 1783–1784 eruption of the Laki fissure volcano in Iceland impactedNorthernHemisphere climate significantly, probably as a result of the direct injection of volcanic materials into the stratosphere where the volcanic aerosols would linger for years to cause surface cooling across the Northern Hemisphere. However, recent modeling work indi...
متن کامل