Author, as appears in the article.: Donat M., Alexander L., Yang H., Durre I., Vose R., Dunn R., Willett K., Aguilar E., Brunet M., Caesar J., Hewitson B., Jack C., Klein Tank A., Kruger A., Marengo J., Peterson T., Renom M., Oria Rojas C., Rusticucci M., Salinger J., Elrayah A., Sekele S., Srivastava A., Trewin B., Villarroel C., Vincent L., Zhai P., Zhang X., Kitching S.

Department: Geografia

URV's Author/s: Aguilar Anfrons, Enrique Modesto / Brunet India, Manuela Catalina

Keywords: Temperature Precipitation Observations Global gridded dataset Climate extremes

Abstract: 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. © 2013. American Geophysical Union. All Rights Reserved.

Research group: Centre en Canvi Climàtic (C3)

Thematic Areas: Space and planetary science Química Meteorology & atmospheric sciences Medicina ii Geophysics Geociências Engenharias iv Engenharias iii Engenharias ii Engenharias i Earth and planetary sciences (miscellaneous) Ciências ambientais Ciências agrárias i Biodiversidade Atmospheric science

licence for use: https://creativecommons.org/licenses/by/3.0/es/

ISSN: 2169897X

Author's mail: manola.brunet@urv.cat enric.aguilar@urv.cat

Author identifier: 0000-0002-9386-710X 0000-0002-8384-377X

Record's date: 2023-02-22

Papper version: info:eu-repo/semantics/publishedVersion

Link to the original source: https://agupubs.onlinelibrary.wiley.com/doi/10.1002/jgrd.50150

Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/

Papper original source: Journal Of Geophysical Research-Atmospheres. 118 (5): 2098-2118

APA: Donat M., Alexander L., Yang H., Durre I., Vose R., Dunn R., Willett K., Aguilar E., Brunet M., Caesar J., Hewitson B., Jack C., Klein Tank A., Kruger (2013). Updated analyses of temperature and precipitation extreme indices since the beginning of the twentieth century: The HadEX2 dataset. Journal Of Geophysical Research-Atmospheres, 118(5), 2098-2118. DOI: 10.1002/jgrd.50150

Article's DOI: 10.1002/jgrd.50150

Entity: Universitat Rovira i Virgili

Journal publication year: 2013

Publication Type: Journal Publications