Print Email Facebook Twitter Characterisation of the dynamics of past droughts Title Characterisation of the dynamics of past droughts Author Diaz, Vitali (TU Delft Water Resources; IHE Delft Institute for Water Education) Corzo Perez, Gerald A. (IHE Delft Institute for Water Education) Van Lanen, Henny A.J. (Wageningen University & Research) Solomatine, D.P. (TU Delft Water Resources; IHE Delft Institute for Water Education; Russian Academy of Sciences) Varouchakis, Emmanouil A. (Technical University of Crete) Date 2020 Abstract Drought is a complex natural phenomenon. The description of the way in which drought changes (moves) in space may help to acquire knowledge on its drivers and processes to improve its monitoring and prediction. This research presents the application of an approach to characterise the dynamics of drought. Tracks, severity, duration, as well as localisation (onset and end position), and rotation of droughts were calculated. Results of calculated droughts were compared with documented information. Data from the Standardized Precipitation Evaporation Index (SPEI) Global Drought Monitor was used to identify droughts in India as an example for the period 1901–2013. Results show regions where droughts with considerable coverage tend to occur. Paths, i.e. consecutive spatial tracks, of six of the most severe reported droughts were analysed. In all of them, areas overlap considerably over time, which suggest that drought remains in the same region for a period of time. Results of this research are being used to build a model to predict the spatial drought tracks, incl. India (https://www.researchgate.net/project/STAND-Spatio-Temporal-ANalysis-of-Drought). Subject Drought characterisationDrought dynamicsDrought trackingSpatio-temporal drought analysis To reference this document use: http://resolver.tudelft.nl/uuid:4acce8f6-ebd4-454f-ad06-9daac5e35637 DOI https://doi.org/10.1016/j.scitotenv.2019.134588 Embargo date 2020-05-18 ISSN 0048-9697 Source Science of the Total Environment, 718 Bibliographical note Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2020 Vitali Diaz, Gerald A. Corzo Perez, Henny A.J. Van Lanen, D.P. Solomatine, Emmanouil A. Varouchakis Files PDF 1_s2.0_S0048969719345796_main.pdf 5.24 MB Close viewer /islandora/object/uuid:4acce8f6-ebd4-454f-ad06-9daac5e35637/datastream/OBJ/view