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

作者：Markus G. Donat, Lisa V. Alexander, Hanbo Yang, Imke Durre, Russell S. Vose, Robert Dunn, Kate M. Willett, Enric Aguilar, Manola Brunet, John Caesar, Bruce Charles Hewitson, Christopher David Jack, Albert Klein Tank, Andries C. Kruger, José Antonio Marengo, T. C. Peterson, Miguel A. Renom, Clara Oria Rojas, Matilde Rusticucci, Michael James Salinger, A. S. Elrayah, S. S. Sekele, Ashok Kumar Srivastava, Blair C. Trewin, Claudia Villarroel, Lucie A. Vincent, Panmao Zhai, Xuebin Zhang, S. Kitching · 发表于：Journal of Geophysical Research Atmospheres · 年份：2013 · DOI：10.1002/jgrd.50150 · 被引用次数：1385 · 研究领域：Climate variability and models、Meteorological Phenomena and Simulations、Hydrology and Drought Analysis

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 compa...