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Original scientific paper
https://doi.org/10.15233/gfz.2017.34.8

An intermediate complexity AGCM simulations of climate response to a doubling of atmospheric carbon dioxide

Irena Nimac   ORCID icon orcid.org/0000-0002-5088-3767 ; Meteorological and Hydrological Service of Croatia, Zagreb, Croatia
Ivana Herceg-Bulić ; Department of Geophysics, Faculty of Science, University of Zagreb, Zagreb, Croatia

Fulltext: english, pdf (4 MB) pages 175-197 downloads: 218* cite
APA 6th Edition
Nimac, I. & Herceg-Bulić, I. (2017). An intermediate complexity AGCM simulations of climate response to a doubling of atmospheric carbon dioxide. Geofizika, 34 (1), 175-197. https://doi.org/10.15233/gfz.2017.34.8
MLA 8th Edition
Nimac, Irena and Ivana Herceg-Bulić. "An intermediate complexity AGCM simulations of climate response to a doubling of atmospheric carbon dioxide." Geofizika, vol. 34, no. 1, 2017, pp. 175-197. https://doi.org/10.15233/gfz.2017.34.8. Accessed 19 Oct. 2019.
Chicago 17th Edition
Nimac, Irena and Ivana Herceg-Bulić. "An intermediate complexity AGCM simulations of climate response to a doubling of atmospheric carbon dioxide." Geofizika 34, no. 1 (2017): 175-197. https://doi.org/10.15233/gfz.2017.34.8
Harvard
Nimac, I., and Herceg-Bulić, I. (2017). 'An intermediate complexity AGCM simulations of climate response to a doubling of atmospheric carbon dioxide', Geofizika, 34(1), pp. 175-197. https://doi.org/10.15233/gfz.2017.34.8
Vancouver
Nimac I, Herceg-Bulić I. An intermediate complexity AGCM simulations of climate response to a doubling of atmospheric carbon dioxide. Geofizika [Internet]. 2017 [cited 2019 October 19];34(1):175-197. https://doi.org/10.15233/gfz.2017.34.8
IEEE
I. Nimac and I. Herceg-Bulić, "An intermediate complexity AGCM simulations of climate response to a doubling of atmospheric carbon dioxide", Geofizika, vol.34, no. 1, pp. 175-197, 2017. [Online]. https://doi.org/10.15233/gfz.2017.34.8

Abstracts
Atmospheric response to doubled carbon dioxide concentration is estimated by analyzing 35-member ensemble mean made by an atmospheric general circulation model of intermediate complexity. Simulated changes in the mean fields are evaluated for winter (January-February-March) and summer (July-August-September) seasons. Results show that doubled CO2 concentration causes warming of around 2 °C at all levels in the model. At the surface, the largest temperature change is found over the polar areas; while at the higher levels considerable warming is found mostly over the continental parts. Atmospheric warming at the 300 hPa level is accompanied by cooling over the polar areas. At the levels above 300 hPa, temperature drops globally. Changes in jet stream occur at Northern Hemisphere with larger winter amplitudes. During the respective winter, stratiform precipitation significantly increases at the higher latitudes of both hemispheres and decreases mostly over the oceans. Over the Northern Hemisphere, convective precipitation is significantly increased during the summer. Over the southern part of tropical Pacific, stratiform and convective precipitation is decreased during the both seasons. Results also demonstrate that indirect impact of increased CO2 concentration (i.e. effects associated with changes in the lower boundary conditions) generally has a stronger contribution to the tropospheric warming than direct CO2 impact (i.e. the impact associated with absorption and emission of longwave radiation).

Keywords
climate change; doubled carbon dioxide concentration; intermediate complexity model; direct CO2 effect; indirect CO2 effect

Hrčak ID: 186337

URI
https://hrcak.srce.hr/186337

[croatian]

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