دورية أكاديمية
The challenges of hydrological drought definition, quantification and communication: an interdisciplinary perspective
| العنوان: | The challenges of hydrological drought definition, quantification and communication: an interdisciplinary perspective |
|---|---|
| المؤلفون: | K. Stahl, J.-P. Vidal, J. Hannaford, E. Tijdeman, G. Laaha, T. Gauster, L. M. Tallaksen |
| المصدر: | Proceedings of the International Association of Hydrological Sciences, Vol 383, Pp 291-295 (2020) |
| بيانات النشر: | Copernicus Publications, 2020. |
| سنة النشر: | 2020 |
| المجموعة: | LCC:Environmental sciences LCC:Geology |
| مصطلحات موضوعية: | Environmental sciences, GE1-350, Geology, QE1-996.5 |
| الوصف: | Numerous indices exist for the description of hydrological drought. The EURO FRIEND-Water Low flow and Drought Group has repeatedly discussed changing paradigms in the perception and use of existing and emerging new indices for hydrological drought identification and characterization. Group members have also tested the communication of different indices to stakeholders in several national and international transdisciplinary research projects. This contribution presents the experience gained with regard to the purpose and applicability of different classes of drought indices. A recent paradigm shift is the use of anomalies, traditionally from climatology, in hydrology. For instance, anomaly-based indices, such as the Standardized Streamflow Index (SSI) and the variable threshold level method to define streamflow deficiencies, are used increasingly for real-time monitoring. How these indices relate to low flows and their impacts may have become less clear as a result. Assessments of the severity of a particular drought may also differ depending on whether return periods based on traditional low flow or drought frequency analyses or whether SSI time series index values are used. These experiences call for a systematic comparison, classification and evaluation of different low flow and drought indices and their usages. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2199-8981 2199-899X |
| Relation: | https://piahs.copernicus.org/articles/383/291/2020/piahs-383-291-2020.pdf; https://doaj.org/toc/2199-8981; https://doaj.org/toc/2199-899X |
| DOI: | 10.5194/piahs-383-291-2020 |
| URL الوصول: | https://doaj.org/article/ed4cbd1aa81b4fe0970e698240f94f2c |
| رقم الأكسشن: | edsdoj.4cbd1aa81b4fe0970e698240f94f2c |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 21998981 2199899X |
|---|---|
| DOI: | 10.5194/piahs-383-291-2020 |