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Wet Spells and Associated Moisture Sources Anomalies across Danube River Basin
- Source :
- Water, Vol 9, Iss 8, p 615 (2017), Water; Volume 9; Issue 8; Pages: 615
- Publication Year :
- 2017
- Publisher :
- MDPI AG, 2017.
-
Abstract
- The Danube River Basin is the second longest catchment basin in Europe and exhibits intense climatological diversity. In recent decades, the frequency and intensity of daily precipitation extremes have suffered from an increment in many parts of the world, including Central and Eastern Europe. Wet spells are defined by the number of consecutive rainy days with different thresholds. The identification of wet spells and their trends in the rainfall time is very important for many sectors, such as agriculture, ecology, hydrology and water resources. Wet spells can lead to extreme events and cause floods and other disasters. In this study, we will attempt to characterise global precipitation in the context of wet spells and associated precipitation depth of wet spells in the Danube River Basin area using daily precipitation data, as well as analysing different approaches to identifying wet spells. The ten most intense wet spells were detected, and the most intense, which occurred on 23 September 1996, was studied in depth in terms of precipitation and associated anomalies, the synoptic situation and the anomalous transport of moisture using a Lagrangian approach. The existence of a marked west-east dipole in the field of sea level pressure between the Atlantic Ocean and the eastern Mediterranean leads to the anomalous moisture transport from the Northern Atlantic Ocean to the Mediterranean Sea, where a higher available amount of moisture existed, and subsequently penetrated within the low positioned over the Danube River Basin. In addition, an Atmospheric River was also responsible for the wet conditions in the Danube River Basin. The combination of all these factors was responsible for the extreme precipitation linked with the wet spell.
- Subjects :
- lcsh:Hydraulic engineering
010504 meteorology & atmospheric sciences
0208 environmental biotechnology
Geography, Planning and Development
Drainage basin
atmospheric rivers
Context (language use)
02 engineering and technology
Aquatic Science
Structural basin
precipitation
01 natural sciences
Biochemistry
Mediterranean sea
Hydrology (agriculture)
lcsh:Water supply for domestic and industrial purposes
lcsh:TC1-978
wet spell
Precipitation
0105 earth and related environmental sciences
Water Science and Technology
moisture sources
anomalies
danube river basin
Hydrology
geography
lcsh:TD201-500
geography.geographical_feature_category
15. Life on land
Atmospheric river
6. Clean water
020801 environmental engineering
Water resources
13. Climate action
Environmental science
Subjects
Details
- Language :
- English
- ISSN :
- 20734441
- Volume :
- 9
- Issue :
- 8
- Database :
- OpenAIRE
- Journal :
- Water
- Accession number :
- edsair.doi.dedup.....01a6b667d6a00ca8bbacc7c895b253b4