Land-use changes impact the energy balance of the Earth system, and feedbacks in the Earth system can dampen or amplify this perturbation. We analyze here from satellite data the response of clouds and subsequently radiation to a change of land use for the example of deforestation in the Amazon Basin. In this region, the characteristics
of different cloud types over two vegetation types (forest and crop-/grasslands) were calculated for a time period of five
years by using satellite data from the instruments MODIS and CERES. The cloud types are defined according to height, optical thickness, and fraction of cloud cover. For calculating the radiative forcing caused by deforestation, the dependency of spatial and temporal averages for the reflected shortwave and outgoing longwave radiation of the top of
the atmosphere on vegetation types were determined as well. The results show distinct differences in cloud cover and radiative forcing over crop-/grasslands and forests for the two vegetation regimes, implying a potentially significant positive cloud feedback to deforestation.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa.de:bsz:15-qucosa-189778 |
| Date | 26 November 2015 |
| Creators | Schneider, Nadine, Quaas, Johannes, Claussen, Martin, Reick, Christian |
| Contributors | Deutscher Wetterdienst (DWD),, Universität Leipzig, Institut für Meteorologie, Max-Planck-Institut für Meteorologie,, American Institute of Physics, |
| Publisher | Universitätsbibliothek Leipzig |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | English |
| Detected Language | English |
| Type | doc-type:article |
| Format | application/pdf |
| Source | AIP conference proceedings (2013) 1531, S. 428-431 |
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