Hydrological drought – processes and estimation methods for streamflow and groundwater

• DOI: 10.5194/egusphere-egu23-13352
• Publication Date: 2023-02-26T03:31:31Z
• Authors: Lena M. Tallaksen; Henny A.J. Van Lanen; Jamie Hannaford; Hege Hisdal; Daniel G. Kingston; Gregor Laaha; Christel Prudhomme; James H. Stagge; Kerstin Stahl; Anne F. Van Loon; Niko Wanders
• Keywords: Water cycle

Drought is a worldwide phenomenon that originates from prolonged deficiency in precipitation, often combined with high evaporation, over an extended region. The resultant meteorological water balance may cause hydrological drought to develop into below normal levels of streamflow, lakes, and groundwater. Contemporary knowledge experiences international team experts are consolidated textbook (Tallaksen et al., 2023), which builds on earlier edition (URL 1), however significant new material added. An updated synthesis was needed because drought-issues has been emerged the last 15 years, particularly when much topic currently dominated by climate climatology approaches. consists three parts; Part I (Drought as natural hazard) discusses phenomenon, its main features, regional diversity controlling processes. II (Estimation methods) presents contemporary approaches estimation, including data characteristics, statistical analysis series, incl. frequency analysis, time series regionalization procedures, well process-based modelling. III (Living drought) addresses aspects related interactions between people. Topics include historical future drought, how human interventions influence impacts Early Warning Systems. Knowledge shared book regions all world although somewhat biased Europe rivers flow most year.This presentation aims introduce textbook, motivation content wide audience. supported worked examples self-guided tours elaborated more extensively Github. Worked online code, details calculation procedure enable readers repeat calculations stepwise manner, either their own or using datasets, we encourage user’s feedbacks testing these. Self-guided demonstrations advanced methodologies involve several steps given presentations. Four datasets included Github; international, two local datasets. dataset illustrates across world, whereas studied combination hydroclimatological catchment information. Hopefully, will contribute increased awareness one our hazards, thereby increase preparedness resilience society drought. ReferencesURL 1: http://europeandroughtcentre.com/resources/hydrological-drought-1st-edition/ Tallaksen, L.M., Van Lanen, H.A.J., Hannaford, J., Hisdal, H., Kingston, D.G., Laaha, G., Prudhomme, C., Stagge, J.H., Stahl, K., Loon, A.F., Wanders, N., Barker, L.J., Blauhut, V., Bloomfield, J.P., Cammalleri, Engeland, Everard, Facer-Childs, Fendeková, M., Fry, Gauster, T., Harrigan, S., Ionita, Marsh, Muchan, Ngongondo, Parry, Rees, Sauquet, E., Vidal, J-P. Vogt, J. (2023). Hydrological Drought. Processes Estimation Methods for Streamflow Groundwater. Elsevier Publisher.