TY  - JOUR
A1  - Pena-Angulo, D.
A1  - Nadal-Romero, E.
A1  - Gonzalez-Hidalgo, J. C.
A1  - Albaladejo, J.
A1  - Andreu, V
A1  - Bagarello, V
A1  - Barhi, H.
A1  - Batalla, R. J.
A1  - Bernal, S.
A1  - Bienes, R.
A1  - Campo, J.
A1  - Campo-Bescos, M. A.
A1  - Canatario-Duarte, A.
A1  - Canton, Y.
A1  - Casali, J.
A1  - Castillo, V
A1  - Cerda, Artemi
A1  - Cheggour, A.
A1  - Cid, Patricio
A1  - Cortesi, N.
A1  - Desir, G.
A1  - Diaz-Pereira, E.
A1  - Espigares, T.
A1  - Estrany, Joan
A1  - Fernandez-Raga, M.
A1  - Ferreira, Carla S. S.
A1  - Ferro, Vito
A1  - Gallart, Francesc
A1  - Gimenez, R.
A1  - Gimeno, E.
A1  - Gomez, J. A.
A1  - Gomez-Gutierrez, A.
A1  - Gomez-Macpherson, H.
A1  - Gonzalez-Pelayo, O.
A1  - Hueso-Gonzalez, P.
A1  - Kairis, O.
A1  - Karatzas, G. P.
A1  - Klotz, S.
A1  - Kosmas, C.
A1  - Lana-Renault, Noemi
A1  - Lasanta, T.
A1  - Latron, J.
A1  - Lazaro, R.
A1  - Le Bissonnais, Y.
A1  - Le Bouteiller, C.
A1  - Licciardello, F.
A1  - Lopez-Tarazon, José Andrés
A1  - Lucia, A.
A1  - Marin, C.
A1  - Marques, M. J.
A1  - Martinez-Fernandez, J.
A1  - Martinez-Mena, M.
A1  - Martinez-Murillo, J. F.
A1  - Mateos, L.
A1  - Mathys, N.
A1  - Merino-Martin, L.
A1  - Moreno-de las Heras, M.
A1  - Moustakas, N.
A1  - Nicolau, J. M.
A1  - Novara, A.
A1  - Pampalone, V
A1  - Raclot, D.
A1  - Rodriguez-Blanco, M. L.
A1  - Rodrigo-Comino, Jesús
A1  - Romero-Diaz, A.
A1  - Roose, E.
A1  - Rubio, J. L.
A1  - Ruiz-Sinoga, J. D.
A1  - Schnabel, S.
A1  - Senciales-Gonzalez, J. M.
A1  - Simonneaux, V
A1  - Sole-Benet, A.
A1  - Taguas, E.
A1  - Taboada-Castro, M. M.
A1  - Taboada-Castro, M. T.
A1  - Todisco, Francesca
A1  - Ubeda, X.
A1  - Varouchakis, E. A.
A1  - Vericat, Damia
A1  - Wittenberg, L.
A1  - Zabaleta, A.
A1  - Zorn, M.
T1  - Spatial variability of the relationships of runoff and sediment yield with weather types throughout the Mediterranean basin
JF  - Journal of hydrology
N2  - 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 Analysis (PCA) was used to identify spatial relationships of the different WTs including three hydro-sedimentary variables: rainfall, runoff, and sediment yield (SY, used to refer to both soil erosion measured at plot scale and sediment yield registered at catchment scale). The results indicated 4 spatial classes of rainfall and runoff: (a) northern sites dependent on North (N) and North West (NW) flows; (b) eastern sites dependent on E and NE flows; (c) southern sites dependent on S and SE flows; and, finally, (d) western sites dependent on W and SW flows. Conversely, three spatial classes are identified for SY characterized by: (a) N and NE flows in northern sites (b) E flows in eastern sites, and (c) W and SW flows in western sites. Most of the rainfall, runoff and SY occurred during a small number of daily events, and just a few WTs accounted for large percentages of the total. Our results confirm that characterization by WT improves understanding of the general conditions under which runoff and SY occur, and provides useful information for understanding the spatial variability of runoff, and SY throughout the Mediterranean basin. The approach used here could be useful to aid of the design of regional water management and soil conservation measures.
KW  - Synoptic weather types
KW  - Erosion
KW  - Sediment yield
KW  - Runoff
KW  - Mediterranean basin
Y1  - 2019
U6  - https://doi.org/10.1016/j.jhydrol.2019.01.059
SN  - 0022-1694
SN  - 1879-2707
VL  - 571
SP  - 390
EP  - 405
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Francke, Till
A1  - Werb, Sandra
A1  - Sommerer, Erik
A1  - Lopez-Tarazon, José Andrés
T1  - Analysis of runoff, sediment dynamics and sediment yield of subcatchments in the highly erodible Isabena catchment, Central Pyrenees
JF  - Journal of soils and sediments : protection, risk assessment and remediation
N2  - The Isabena catchment (445 km(2)), Spain, features highly diverse spatial heterogeneity in land use, lithology and rainfall. Consequently, the relative contribution in terms of water and sediment yield varies immensely between its subcatchments, and also temporally. This study presents the synthesis of similar to 2.5 years of monitoring rainfall, discharge and suspended sediment concentration (SSC) in the five main subcatchments of the Isabena and its outlet.
 Continuous discharge at the subcatchment outlets, nine tipping bucket rainfall and automatic SSC samplers (complemented by manual samples), were collected from June 2011 until November 2013. The water stage records were converted to discharge using a rating curve derived with Bayesian regression. For reconstructing sediment yields, the data from the intermittent SSC sampling needed to be interpolated. We employed non-parametric multivariate regression (Quantile Regression Forests, QRF) using the discharge and rainfall data plus different aggregation levels of these as ancillary predictors. The subsequent Monte Carlo simulations allowed the determination of monthly sediment yields and their uncertainty.
 The Isabena catchment shows high erosion dynamics with great variability in space and time, with stark contrasts even between adjacent subcatchments. The natural conditions make water and sediment monitoring and instrumentation very challenging; the measurement of discharge is particularly prone to considerable uncertainties. The QRF method employed for reconstructing sedigraphs and monthly yields proved well suited for the task.
KW  - Mediterranean-mountainous
KW  - Non-parametric regression
KW  - Sediment yield
KW  - Water yield
KW  - Badlands
Y1  - 2014
U6  - https://doi.org/10.1007/s11368-014-0990-5
SN  - 1439-0108
SN  - 1614-7480
VL  - 14
IS  - 12
SP  - 1909
EP  - 1920
PB  - Springer
CY  - Heidelberg
ER  - 
TY  - JOUR
A1  - Korup, Oliver
T1  - Earth's portfolio of extreme sediment transport events
JF  - Earth science reviews : the international geological journal bridging the gap between research articles and textbooks
N2  - Quantitative estimates of sediment flux and the global cycling of sediments from hillslopes to rivers, estuaries, deltas, continental shelves, and deep-sea basins have a long research tradition. In this context, extremely large and commensurately rare sediment transport events have so far eluded a systematic analysis. To start filling this knowledge gap I review some of the highest reported sediment yields in mountain rivers impacted by volcanic eruptions, earthquake- and storm-triggered landslide episodes, and catastrophic dam breaks. Extreme specific yields, defined here as those exceeding the 95th percentile of compiled data, are similar to 10(4) t km(-2) yr(-1) if averaged over 1 yr. These extreme yields vary by eight orders of magnitude, but systematically decay with reference intervals from minutes to millennia such that yields vary by three orders of magnitude for a given reference interval. Sediment delivery from natural dam breaks and pyroclastic eruptions dominate these yields for a given reference interval. Even if averaged over 10(2)-10(3) yr, the contribution of individual disturbances may remain elevated above corresponding catchment denudation rates. I further estimate rates of sediment (re-)mobilisation by individual giant terrestrial and submarine mass movements. Less than 50 postglacial submarine mass movements have involved an equivalent of similar to 10% of the contemporary annual global flux of fluvial sediment to Earth's oceans, while mobilisation rates by individual events rival the decadal-scale sediment discharge from tectonically active orogens such as Taiwan or New Zealand. Sediment flushing associated with catastrophic natural dam breaks is non-stationary and shows a distinct kink at the last glacial-interglacial transition, owing to the drainage of very large late Pleistocene ice-marginal lakes. Besides emphasising the contribution of high-magnitude and low-frequency events to the global sediment cascade, these findings stress the importance of sediment storage for fuelling rather than buffering high sediment transport rates.
KW  - Sediment yield
KW  - Erosion
KW  - Extreme event
Y1  - 2012
U6  - https://doi.org/10.1016/j.earscirev.2012.02.006
SN  - 0012-8252
VL  - 112
IS  - 3-4
SP  - 115
EP  - 125
PB  - Elsevier
CY  - Amsterdam
ER  -