Wet Spells and Associated Moisture Sources Anomalies across Danube River Basin

被引:8
作者
Ciric, Danica [1 ]
Nieto, Raquel [1 ]
Ramos, Alexandre M. [2 ]
Drumond, Anita [1 ]
Gimeno, Luis [1 ]
机构
[1] Univ Vigo, Fac Ciencias, EPhysLab Environm Phys Lab, Orense 32004, Spain
[2] Univ Lisbon, Inst Dom Luiz, P-1749016 Lisbon, Portugal
关键词
wet spell; precipitation; moisture sources; atmospheric rivers; anomalies; danube river basin; EXTREME PRECIPITATION EVENTS; GLOBAL WATER CYCLE; LAGRANGIAN ANALYSIS; ATMOSPHERIC BRANCH; HEAVY RAIN; PART I; ORIGIN; CHIRPS; DRIER; FLOOD;
D O I
10.3390/w9080615
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
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.
引用
收藏
页数:17
相关论文
共 47 条
[1]  
[Anonymous], HYDROLOGICAL PROCESS
[2]  
[Anonymous], FLOOD RISK MANAGEMEN
[3]  
[Anonymous], 2013, HYDROL EARTH SYST SC, DOI DOI 10.5194/hess-17-5197-2013
[4]  
[Anonymous], 2012, ADV HURRICANE RES MO
[5]  
[Anonymous], 2013, TRENDS EXTR WEATH EV
[6]  
[Anonymous], HIDROLOGY RIVER DANU
[7]   Tracking the Origin of Moisture over the Danube River Basin Using a Lagrangian Approach [J].
Ciric, Danica ;
Stojanovic, Milica ;
Drumond, Anita ;
Nieto, Raquel ;
Gimeno, Luis .
ATMOSPHERE, 2016, 7 (12)
[8]   The ERA-Interim reanalysis: configuration and performance of the data assimilation system [J].
Dee, D. P. ;
Uppala, S. M. ;
Simmons, A. J. ;
Berrisford, P. ;
Poli, P. ;
Kobayashi, S. ;
Andrae, U. ;
Balmaseda, M. A. ;
Balsamo, G. ;
Bauer, P. ;
Bechtold, P. ;
Beljaars, A. C. M. ;
van de Berg, L. ;
Bidlot, J. ;
Bormann, N. ;
Delsol, C. ;
Dragani, R. ;
Fuentes, M. ;
Geer, A. J. ;
Haimberger, L. ;
Healy, S. B. ;
Hersbach, H. ;
Holm, E. V. ;
Isaksen, L. ;
Kallberg, P. ;
Koehler, M. ;
Matricardi, M. ;
McNally, A. P. ;
Monge-Sanz, B. M. ;
Morcrette, J. -J. ;
Park, B. -K. ;
Peubey, C. ;
de Rosnay, P. ;
Tavolato, C. ;
Thepaut, J. -N. ;
Vitart, F. .
QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, 2011, 137 (656) :553-597
[9]   A Lagrangian analysis of the variation in moisture sources related to drier and wetter conditions in regions around the Mediterranean Basin [J].
Drumond, A. ;
Nieto, R. ;
Hernandez, E. ;
Gimeno, L. .
NATURAL HAZARDS AND EARTH SYSTEM SCIENCES, 2011, 11 (08) :2307-2320
[10]   Sources of moisture for China and their variations during drier and wetter conditions in 2000-2004: a Lagrangian approach [J].
Drumond, Anita ;
Nieto, Raquel ;
Gimeno, Luis .
CLIMATE RESEARCH, 2011, 50 (2-3) :215-225