Updated analyses of temperature and precipitation extreme indices since the beginning of the twentieth century: the HadEX2 dataset

Autor: Donat, M. G., Alexander, L. V., Yang, H., Durre, I., Vose, R., Dunn, R. J. H., Willett, K. M., Aguilar, E., Brunet, M., Caesar, J., Hewitson, B., Jack, C., Klein Tank, A. M. G., Kruger, A. C., Marengo, J., Peterson, T. C., Renom, M., Oria Rojas, C., Rusticucci, Matilde Monica, Salinger, J., Elrayah, A. S., Sekele, S. S., Srivastava, A. K., Trewin, B., Villarroel, C., Vincent, L. A., Zhai, P., Zhang, X., Kitching, S.
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: Repositorio Institucional -SENAMHI
Servicio Nacional de Meteorología e Hidrología del Perú
SENAMHI-Institucional
instacron:SENAMHI
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
DOI: 10.1002/jgrd.50150/abstract
Popis: In this study, we present the collation and analysis of the gridded land-based dataset of indices of temperature and precipitation extremes: HadEX2. Indices were calculated based on station data using a consistent approach recommended by the World Meteorological Organization (WMO) Expert Team on Climate Change Detection and Indices, resulting in the production of 17 temperature and 12 precipitation indices derived from daily maximum and minimum temperature and precipitation observations. High-quality in situ observations from over 7000 temperature and 11,000 precipitation meteorological stations across the globe were obtained to calculate the indices over the period of record available for each station. Monthly and annual indices were then interpolated onto a 3.75° × 2.5° longitude-latitude grid over the period 1901-2010. Linear trends in the gridded fields were computed and tested for statistical significance. Overall there was very good agreement with the previous HadEX dataset during the overlapping data period. Results showed widespread significant changes in temperature extremes consistent with warming, especially for those indices derived from daily minimum temperature over the whole 110 years of record but with stronger trends in more recent decades. Seasonal results showed significant warming in all seasons but more so in the colder months. Precipitation indices also showed widespread and significant trends, but the changes were much more spatially heterogeneous compared with temperature changes. However, results indicated more areas with significant increasing trends in extreme precipitation amounts, intensity, and frequency than areas with decreasing trends. Fil: Donat, M. G.. University of New South Wales; Australia Fil: Alexander, L. V.. University of New South Wales; Australia. Arc Centre Of Excellence For Climate System Science; Australia Fil: Yang, H.. University of New South Wales; Australia Fil: Durre, I.. NOAA National Climatic Data Center; Estados Unidos Fil: Vose, R.. NOAA National Climatic Data Center; Estados Unidos Fil: Dunn, R. J. H.. Hadley Centre; Reino Unido Fil: Willett, K. M.. Hadley Centre; Reino Unido Fil: Aguilar, E.. Universitat Rovira I Virgili; España Fil: Brunet, M.. University of East Anglia; Reino Unido. Universitat Rovira I Virgili; España Fil: Caesar, J.. Hadley Centre; Reino Unido Fil: Hewitson, B.. University of Cape Town; Sudáfrica Fil: Jack, C.. University of Cape Town; Sudáfrica Fil: Klein Tank, A. M. G.. Royal Netherlands Meteorological Institute; Países Bajos Fil: Kruger, A. C.. South African Weather Service; Sudáfrica Fil: Marengo, J.. Centro de Previsao de Tempo e Estudos Climáticos. Instituto Nacional de Pesquisas Espaciais; Brasil Fil: Peterson, T. C.. NOAA National Climatic Data Center; Estados Unidos Fil: Renom, M.. Universidad de la República; Uruguay. Universidad de la Republica; Uruguay Fil: Oria Rojas, C.. Servicio Nacional de Meteorología E Hidrología del Perú; Perú Fil: Rusticucci, Matilde Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina Fil: Salinger, J.. University of Stanford; Estados Unidos Fil: Elrayah, A. S.. Sudan Meteorological Authority; Sudán Fil: Sekele, S. S.. South African Weather Service; Sudáfrica Fil: Srivastava, A. K.. India Meteorological Department; India Fil: Trewin, B.. Bureau Of Meteorology Australia; Australia Fil: Villarroel, C.. Direccion Meteorologica de Chile; Chile Fil: Vincent, L. A.. Environment Canada; Canadá Fil: Zhai, P.. Chinese Academy Of Meteorological Sciences; China Fil: Zhang, X.. Environment Canada; Canadá Fil: Kitching, S.. Arc Centre Of Excellence For Climate System Science; Australia. University of Newcastle; Reino Unido
Databáze: OpenAIRE
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