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dc.contributor.author
Spinoni, Jonathan
dc.contributor.author
Vogt, Jürgen
dc.contributor.author
Naumann, Gustavo
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dc.contributor.author
Carrao, Hugo
dc.contributor.author
Barbosa, Paulo
dc.date.available
2018-04-20T17:57:50Z
dc.date.issued
2015-06
dc.identifier.citation
Spinoni, Jonathan; Vogt, Jürgen; Naumann, Gustavo; Carrao, Hugo; Barbosa, Paulo; Towards identifying areas at climatological risk of desertification using the Köppen-Geiger classification and FAO aridity index; John Wiley & Sons Ltd; International Journal of Climatology; 35; 6-2015; 2210-2222
dc.identifier.issn
0899-8418
dc.identifier.uri
http://hdl.handle.net/11336/42876
dc.description.abstract
Over the past decades, a continuous rise in global air temperatures resulted in significant changes in the global hydrological cycle. Regionally increased frequencies of extreme weather events and changes in the regional extent of drylands resulted in new areas at risk of desertification, a complex process driven by socio-economic and climate-related factors. Although desertification is not confined to drylands, they are the most vulnerable to land degradation processes. To investigate possible changes in climate patterns over the past 60 years, we couple the information obtained from the Köppen-Geiger (KG) climate classification and the FAO aridity index (AI), providing an overview of the most evident global changes in climate regimes from 1951-1980 to 1981-2010 and focussing on the modifications of the extent of drylands. KG and AI indicators have been computed on a 0.5º x0.5º global grid using precipitation data from the Full Data Reanalysis (v6.0) of the Global Precipitation Climatology Centre, and mean temperature and potential evapotranspiration data from the Climate Research Unit of the University of East Anglia (CRUTSv3.20). Both KG and AI show that the arid areas globally increased between 1951-1980 and 1981-2010, but decreased on average in the Americas. North-Eastern Brazil, Southern Argentina, the Sahel, Zambia and Zimbabwe, the Mediterranean area, North-Eastern China and Sub-Himalayan India have been identified as areas with a significant increase of drylands extent. An analysis of the scientific literature gives evidence that most of the areas identified are effectively undergoing desertification, thus confirming the validity of AI and KG to highlight the areas under risk of desertification. We also discuss the global decrease of cold areas, the progressive change from continental to temperate climate in Central Europe, the shift from tundra to continental climate in Alaska, Canada and North-Eastern Russia and the widening of the tropical belt.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
John Wiley & Sons Ltd
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Desertification
dc.subject.classification
Meteorología y Ciencias Atmosféricas
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Towards identifying areas at climatological risk of desertification using the Köppen-Geiger classification and FAO aridity index
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-04-16T14:56:34Z
dc.journal.volume
35
dc.journal.pagination
2210-2222
dc.journal.pais
Reino Unido
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dc.journal.ciudad
LOndres
dc.description.fil
Fil: Spinoni, Jonathan. Institute for Environment and Sustainability; Italia
dc.description.fil
Fil: Vogt, Jürgen. Institute for Environment and Sustainability; Italia
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Fil: Naumann, Gustavo. Institute for Environment and Sustainability; Italia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Carrao, Hugo. Institute for Environment and Sustainability; Italia
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Fil: Barbosa, Paulo. Institute for Environment and Sustainability; Italia
dc.journal.title
International Journal of Climatology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/joc.4124
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://rmets.onlinelibrary.wiley.com/doi/abs/10.1002/joc.4124
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