8 documents found, page 1 of 1
Design, Calibration, and Performance Evaluation of a High-Fidelity spraying Rai...
Rončević, V.; Živanović, N.; Radulović, R.; Ristić, R.; Sadeghi, S.H.; Fernández-Raga, M.; Prats, SérgioRainfall simulators are essential tools in soil research, providing a controlled and repeatable approach to studying rainfall-induced erosion. However, the development of highfidelity rainfall simulators remains a challenge. This study aimed to design, construct, and calibrate a spraying-type rainfall simulator and validate assessment criteria optimized for soil erosion research. The simulator’s design is based...
Relationship of weather types on the seasonal and spatial variability of rainfa...
Peña-Angulo, D.; Nadal-Romero, Estela; González-Hidalgo, J. Carlos; Albaladejo, J.; Andreu, V.; Barhi, H.; Bernal, S.; Biddoccu, M.; Bienes, R.Rainfall is the key factor to understand soil erosion processes, mechanisms, and rates. Most research was conducted to determine rainfall characteristics and their relationship with soil erosion (erosivity) but there is little information about how atmospheric patterns control soil losses, and this is important to enable sustainable environmental planning and risk prevention. We investigated the temporal and sp...
Spatial variability of the relationships of runoff and sediment yield with weat...
Peña-Angulo, D.; Nadal-Romero, Estela; González-Hidalgo, J. Carlos; Albaladejo, J.; Andreu, V.; Bagarello, V.; Barhi, H.; Batalla, R.J.; Bernal, S.Soil degradation by water is a serious environmental problem worldwide, with specific climatic factors being the major causes. We investigated the relationships between synoptic atmospheric patterns (i.e. weather types, WTs) and runoff, erosion and sediment yield throughout the Mediterranean basin by analyzing a large database of natural rainfall events at 68 research sites in 9 countries. Principal Component A...
Spatial variability of the relationships of runoff and sediment yield with weat...
Peña-Angulo, D.; Nadal-Romero, E.; González-Hidalgo, J.C.; Albaladejo, J.; Andreu, V.; Bagarello, V.; Barhi, H.; Batalla, R.J.; Bernal, S.; Bienes, R.Soil degradation by water is a serious environmental problem worldwide, with specific climatic factors being the major causes. We investigated the relationships between synoptic atmospheric patterns (i.e. weather types, WTs) and runoff, erosion and sediment yield throughout the Mediterranean basin by analyzing a large database of natural rainfall events at 68 research sites in 9 countries. Principal Component A...
Error in the sampling area of an optical disdrometer: consequences in computing...
Fraile, R.; Castro, A.; Fernández-Raga, M.; Palencia, C.; Calvo, A. I.The aim of this study is to improve the estimation of the characteristic uncertainties of optic disdrometers in an attempt to calculate the efficient sampling area according to the size of the drop and to study how this influences the computation of other parameters, taking into account that the real sampling area is always smaller than the nominal area. For large raindrops (a little over 6 mm), the effective s...
Air masses and weather types: a useful tool for characterizing precipitation ch...
Calvo, A. I.; Pont, V.; Olmo, F. J.; Castro, A.; Alados-Arboledas, L.; Vicente, A. M.; Fernández-Raga, M.; Fraile, R.This study is an analysis of 344 days with rainfall recorded during five years in a remote regional background EMEP (Cooperative Programme for the Monitoring and Evaluation of the Long Range Transmission of Air Pollutants in Europe) station in Spain. The chemical composition of the rainwater associated with air masses (nine categories) and weather types (26 categories) was characterized. The chemical compositio...
May the NAO index be used to forecast rain in Spain?
Castro, A.; Vidal, M. I.; Calvo, A. I.; Fernández-Raga, M.; Fraile, R.This paper studies the influence of the North Atlantic Oscillation (NAO) on monthly, seasonal and annual precipitation regimes in continental Spain. The data used for this study include the monthly rain series of 325 meteorological stations distributed homogeneously over the study zone, and the monthly NAO indices from 1961 to 1998. A total of 5525 rain series were employed for the analysis. Simple and multiple...
Connection between NAO, weather types and precipitation in León, Spain (1948-2008)
Fernández-González, S.; del Río, S.; Castro, A.; Penas, A.; Fernández-Raga, M.; Calvo, A. I.; Fraile, R.The variability of winter precipitation in the west of the Iberian Peninsula is strongly affected by the North Atlantic Oscillation (NAO). This study focuses on identifying the relationship that exists between precipitation registered in the city of Léon (in northwestern Spain), the NAO index and the associated weather type during the same period. In order to achieve this objective, the prevailing weather type ...