Artículo

Alexander, L.V.; Zhang, X.; Peterson, T.C.; Caesar, J.; Gleason, B.; Klein Tank, A.M.G.; Haylock, M.; Collins, D.; Trewin, B.; Rahimzadeh, F.; Tagipour, A.; Rupa Kumar, K.; Revadekar, J.; Griffiths, G.; Vincent, L.; Stephenson, D.B.; Burn, J.; Aguilar, E. (...) Vazquez-Aguirre, J.L. "Global observed changes in daily climate extremes of temperature and precipitation" (2006) Journal of Geophysical Research Atmospheres. 111(5)
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Abstract:

A suite of climate change indices derived from daily temperature and precipitation data, with a primary focus on extreme events, were computed and analyzed. By setting an exact formula for each index and using specially designed software, analyses done in different countries have been combined seamlessly. This has enabled the presentation of the most up-to-date and comprehensive global picture of trends in extreme temperature and precipitation indices using results from a number of workshops held in data-sparse regions and high-quality station data supplied by numerous scientists world wide. Seasonal and annual indices for the period 1951-2003 were gridded. Trends in the gridded fields were computed and tested for statistical significance. Results showed widespread significant changes in temperature extremes associated with warming, especially for those indices derived from daily minimum temperature. Over 70% of the global land area sampled showed a significant decrease in the annual occurrence of cold nights and a significant increase in the annual occurrence of warm nights. Some regions experienced a more than doubling of these indices. This implies a positive shift in the distribution of daily minimum temperature throughout the globe. Daily maximum temperature indices showed similar changes but with smaller magnitudes. Precipitation changes showed a widespread and significant increase, but the changes are much less spatially coherent compared with temperature change. Probability distributions of indices derived from approximately 200 temperature and 600 precipitation stations, with near-complete data for 1901-2003 and covering a very large region of the Northern Hemisphere midlatitudes (and parts of Australia for precipitation) were analyzed for the periods 1901-1950, 1951-1978 and 1979-2003. Results indicate a significant warming throughout the 20th century. Differences in temperature indices distributions are particularly pronounced between the most recent two periods and for those indices related to minimum temperature. An analysis of those indices for which seasonal time series are available shows that these changes occur for all seasons although they are generally least pronounced for September to November. Precipitation indices show a tendency toward wetter conditions throughout the 20th century.

Registro:

Documento: Artículo
Título:Global observed changes in daily climate extremes of temperature and precipitation
Autor:Alexander, L.V.; Zhang, X.; Peterson, T.C.; Caesar, J.; Gleason, B.; Klein Tank, A.M.G.; Haylock, M.; Collins, D.; Trewin, B.; Rahimzadeh, F.; Tagipour, A.; Rupa Kumar, K.; Revadekar, J.; Griffiths, G.; Vincent, L.; Stephenson, D.B.; Burn, J.; Aguilar, E.; Brunet, M.; Taylor, M.; New, M.; Zhai, P.; Rusticucci, M.; Vazquez-Aguirre, J.L.
Filiación:Hadley Centre, Met Office, Exeter EX1 3PB, United Kingdom
Bureau of Meteorology Reseach Centre, Melbourne, Vic. 3001, Australia
School of Geography and Environmental Science, Monash University, Clayton, Vic. 3800, Australia
Climate Research Branch, Meteorological Service of Canada, Downsview, Ont. M3H 5T4, Canada
National Climatic Data Center/NOAA, Asheville, NC 28801-5001, United States
Royal Netherlands Meteorological Institute, NL-3730 AE De Bilt, Netherlands
Climatic Research Unit, University of East Anglia, Norwich NR4 7TJ, United Kingdom
Atmospheric Science and Meteorological Research Center, Iran Meteorological Organization, P.O. Box 13185-461, Tehran, Iran
Indian Institute of Tropical Meteorology, Pune 411 008, India
National Institute of Water and Atmospheric Research, Private Bag 99940, Auckland, New Zealand
Department of Meteorology, University of Reading, Reading RG6 6AH, United Kingdom
Climate Change Research Group, Universitat Rovira i Virgili, E-43005 Tarragona, Spain
Physics Department, University of the West Indies, Mona, Kingston 7, Jamaica
Climate Research Group, Oxford University Centre for the Environment, University of Oxford, Oxford OX1 3QY, United Kingdom
China Meteorological Administration, Beijing 100081, China
Departamento de Ciencias de la Atmósfera y los Océanos, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Beunos Aires, Argentina
Departamento de Meteorologia General, Centro de Ciencias de la Atmosfera, Universidad Nacional Autónoma de México, Coyoacán 04510, Mexico
Palabras clave:Atmospheric temperature; Climatology; Precipitation (meteorology); Probability distributions; Statistical methods; Time series analysis; air temperature; climate change; global change; global warming; precipitation (climatology)
Año:2006
Volumen:111
Número:5
DOI: http://dx.doi.org/10.1029/2005JD006290
Título revista:Journal of Geophysical Research Atmospheres
Título revista abreviado:J. Geophys. Res. D Atmos.
ISSN:01480227
PDF:https://bibliotecadigital.exactas.uba.ar/download/paper/paper_01480227_v111_n5_p_Alexander.pdf
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01480227_v111_n5_p_Alexander

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Citas:

---------- APA ----------
Alexander, L.V., Zhang, X., Peterson, T.C., Caesar, J., Gleason, B., Klein Tank, A.M.G., Haylock, M.,..., Vazquez-Aguirre, J.L. (2006) . Global observed changes in daily climate extremes of temperature and precipitation. Journal of Geophysical Research Atmospheres, 111(5).
http://dx.doi.org/10.1029/2005JD006290
---------- CHICAGO ----------
Alexander, L.V., Zhang, X., Peterson, T.C., Caesar, J., Gleason, B., Klein Tank, A.M.G., et al. "Global observed changes in daily climate extremes of temperature and precipitation" . Journal of Geophysical Research Atmospheres 111, no. 5 (2006).
http://dx.doi.org/10.1029/2005JD006290
---------- MLA ----------
Alexander, L.V., Zhang, X., Peterson, T.C., Caesar, J., Gleason, B., Klein Tank, A.M.G., et al. "Global observed changes in daily climate extremes of temperature and precipitation" . Journal of Geophysical Research Atmospheres, vol. 111, no. 5, 2006.
http://dx.doi.org/10.1029/2005JD006290
---------- VANCOUVER ----------
Alexander, L.V., Zhang, X., Peterson, T.C., Caesar, J., Gleason, B., Klein Tank, A.M.G., et al. Global observed changes in daily climate extremes of temperature and precipitation. J. Geophys. Res. D Atmos. 2006;111(5).
http://dx.doi.org/10.1029/2005JD006290