M. Rico

Instituto Pirenaico de Ecología

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Gerardo Benito

Museo Nacional de Ciencias Naturales

Yolanda Sánchez Moya

Universidad Complutense de Madrid

Alfonso Sopeña

Instituto de Geociencias

Varyl R. Thorndycraft

Royal Holloway University of London

Blas L. Valero‐Garcés

Instituto Pirenaico de Ecología

Ana Moreno

Instituto Pirenaico de Ecología

María José Machado

Hospital General Universitario Gregorio Marañón

M. Pilar Mata

Instituto Geológico y Minero de España

Mario Morellón

Universidad Complutense de Madrid

Penélope González‐Sampériz

Instituto Pirenaico de Ecología

Cooperative Institutions

Consejo Superior de Investigaciones Científicas

Universidad de Zaragoza

Instituto Pirenaico de Ecología

National Research Council

Universidad Complutense de Madrid

Universitat de Barcelona

Instituto Geológico y Minero de España

Estación Experimental de Aula Dei

Museo Nacional de Ciencias Naturales

Instituto de Geociencias

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Palaeoflood response to climate and landuse changes in a Mediterranean river (Castellón, NE Spain)

EGUGA (2014)

Gerardo Benito María José Machado M. Rico Yolanda Sánchez Moya Alfonso Sopeña

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EL REGISTRO SEDIMENTARIO DEL LAGO DE SANABRIA DESDE LA ÚLTIMA DEGLACIACIÓN

M. Rico Blas L. Valero‐Garcés J. C. Vega Ana Moreno Penélope González‐Sampériz

The sedimentary evolution of Sanabria Lake (Zamora province, NW Spain) is reconstructed based on 4 kullenberg cores and 3 short cores. The longest core (9 m long) in the deepest (51 m) eastern subbasin reached the laminated and banded clastic proglacial lacustrine sediments deposited when the watershed was still glaciated. Basal 14C AMS dating (ca. 26 ka BP) indicates that the terminal morraine complex deposited prior to the global LGM. A high resolution study including magnetic susceptibility and XRF core-scanner geochemistry show millennial andcentury scale cycles in Lateglacial and Holocene organic-rich sediments. Calibration studies including 20 year long series of limnological data, short sediment cores, meteorological and land-use changes data are in progress

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Rainfall-runoff modelling and palaeoflood hydrology applied to reconstruct centennial scale records of flooding and aquifer recharge in ungauged ephemeral rivers

Hydrology and earth system sciences (2011)

Gerardo Benito Blanca A. Botero Varyl R. Thorndycraft M. Rico Yolanda Sánchez Moya

Abstract. In this study we propose a multi-source data approach for quantifying long-term flooding and aquifer recharge in ungauged ephemeral rivers. The methodology is applied to the Buffels River, at 9000 km2 the largest ephemeral river in Namaqualand (NW South Africa), a region with scarce stream flow records limiting research investigating hydrological response to global change. Daily discharge and annual flood series (1965–2006) were estimated from a distributed rainfall-runoff hydrological model (TETIS) using rainfall gauge records located within the catchment. The model was calibrated and validated with data collected during a two year monitoring programme (2005–2006) at two stream flow stations, one each in the upper and lower reaches of the catchment. In addition to the modelled flow records, non-systematic flood data were reconstructed using both sedimentary and documentary evidence. The palaeoflood record identified at least 25 large floods during the last 700 yr; with the largest floods reaching a minimum discharge of 255 m3 s−1 (450 yr return period) in the upper basin, and 510 m3 s−1 (100 yr return period) in the lower catchment. Since AD 1925, the flood hydrology of the Buffels River has been characterised by a decrease in the magnitude and frequency of extreme floods, with palaeoflood discharges (period 1500–1921) five times greater than the largest modelled floods during the period 1965–2006. Large floods generated the highest hydrograph volumes, however their contribution to aquifer recharge is limited as this depends on other factors such as flood duration and storage capacity of the unsaturated zone prior to the flood. Floods having average return intervals of 5–10 yr (120–140 m3 s−1) and flowing for 12 days are able to fully saturate the Spektakel aquifer in the lower Buffels River basin. Alluvial aquifer storage capacity limiting potential recharge by the largest floods is a common problem in arid environments, with the largest infiltration volumes favoured by increasing depth to groundwater levels.

Ephemeral key

Return period

Hydrological modelling

Flash flood

10.5194/hess-15-1185-2011

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Citations (34)

Palaeoflood and floodplain records from Spain: Evidence for long-term climate variability and environmental changes

Geomorphology (2008)

Gerardo Benito Varyl R. Thorndycraft M. Rico Yolanda Sánchez Moya Alfonso Sopeña

Aggradation

Deposition

10.1016/j.geomorph.2008.05.020

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Citations (188)

Discerning climatic and environmental change signals on palaeoflood records

Gerardo Benito Varyl R. Thorndycraft María José Machado M. Rico Yolanda Sánchez Moya

Environmental change

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Palaeoflood hydrology in Europe: towards a better understanding of extreme floods

EGS - AGU - EUG Joint Assembly (2003)

Gerardo Benito Varyl R. Thorndycraft M. Rico N. A. Sheffer Yehouda Enzel

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Caesium-137 dating applied to slackwater flood deposits of the Llobregat River, NE Spain

CATENA (2004)

Varyl R. Thorndycraft Gerardo Benito Desmond E. Walling Alfonso Sopeña Yolanda Sánchez Moya

Chronology

10.1016/j.catena.2004.09.002

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Citations (15)

Last deglaciation in northwestern Spain: New chronological and geomorphologic evidence from the Sanabria region

Geomorphology (2011)

Laura Rodríguez‐Rodríguez Montserrat Jiménez‐Sánchez María José Domínguez‐Cuesta M. Rico Blas L. Valero‐Garcés

Deglaciation

Bedrock

Glacial lake

Tidewater glacier cycle

10.1016/j.geomorph.2011.07.025

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Citations (48)

Combined palaeoflood and rainfall–runoff assessment of mountain floods (Spanish Pyrenees)

Journal of Hydrology (2001)

M. Rico Gerardo Benito Antonio Barnolas

Hydrometeorology

Hydrological modelling

Flood forecasting

10.1016/s0022-1694(01)00339-0

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Citations (46)

EL REGISTRO DE ALTA RESOLUCIÓN DE LA VARIABILIDAD CLIMÁTICA Y AMBIENTAL DEL LAGO DE ENOL (PICOS DE EUROPA) DESDE LA ÚLTIMA DEGLACIACIÓN

Ana Moreno Blas L. Valero‐Garcés Penélope González‐Sampériz Mario Morellón M. Rico

The identification and description of abrupt climate changes since last deglaciation in the northern Iberian Peninsula and the understanding of the potential forcing mechanisms requires the study of long, well-dated sequences that allow high-resolution reconstruction of past climate changes. We present here the first results from Lago de Enol sedimentary sequence in the Picos de Europa range covering the last 35,000 years. Sedimentological evidences, together with physical properties and XRF core scanner data, point to glacier re-advances during the LGM and the YD periods. Additionally, we confirm the early deglaciation timing for this region compared to other areas in northern Europe.

Deglaciation

Glacier mass balance

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Citations (3)