Year: 2005
Type: article
Abstract: A workshop on enhancing climate change indices in South America was held in Maceió, Brazil, in August 2004. Scientists from eight southern countries brought daily climatological data from their region for a meticulous assessment of data quality and homogeneity, and for the preparation of climate change indices that can be used for analyses of changes in climate extremes. This study presents an examination of the trends over 1960–2000 in the indices of daily temperature extremes. The results indicate no consistent changes in the indices based on daily maximum temperature while significant trends were found in the indices based on daily minimum temperature. Significant increasing trends in the percentage of warm nights and decreasing trends in the percentage of cold nights were observed at many stations. It seems that this warming is mostly due to more warm nights and fewer cold nights during the summer (December–February) and fall (March–May). The stations with significant trends appear to be located closer to the west and east coasts of South America.
Source: Journal of Climate
DOI: 10.1175/jcli3589.1
Authors: L. A. Vincent, T. C. Peterson, V. R. Barros, M. B. Marino, M. Rusticucci, G. Carrasco, E. Ramirez, L. M. Alves, T. Ambrizzi, M. A. Berlato, A. M. Grimm, J. A. Marengo, L. Molion, D. F. Moncunill, E. Rebello, Y. M. T. Anunciação, J. Quintana, J. L. Santos, J. Baez, G. Coronel, J. Garcia, I. Trebejo, M. Bidegain, M. R. Haylock, D. Karoly
Institutions: Environment and Climate Change Canada, National Oceanic and Atmospheric Administration, NOAA National Centers for Environmental Information, Universidad de Buenos Aires, National Meteorological Service, Servicio Nacional de Hidrología y Meteorología, Universidad Mayor de San Andrés, Instituto Nacional de Pesquisas Espaciais, Universidade de São Paulo, Universidade Federal do Rio Grande do Sul, Universidade Federal do Paraná, Universidade Federal de Alagoas, Fundação Cearense de Meteorologia e Recursos Hídricos, Escuela Superior Politecnica del Litoral, Universidad Nacional de Asunción, Universidad Nacional Agraria La Molina, Servicio Nacional de Meteorología e Hidrología del Perú, Universidad de la República de Uruguay, University of East Anglia, University of Oklahoma
Language: English
Subfield: Global and Planetary Change
Field: Environmental Science
Domain: Physical Sciences
SDG: Climate action
Open Access status: bronze
OpenAlex ID: W2019844743