A5041808840- Geology and Paleoclimatology Research
- Cryospheric studies and observations
- Geological formations and processes
- Landslides and related hazards
- Hydrology and Sediment Transport Processes
- Hydrology and Watershed Management Studies
- Flood Risk Assessment and Management
- Tree-ring climate responses
- Pleistocene-Era Hominins and Archaeology
- Archaeology and ancient environmental studies
- Geological and Geophysical Studies Worldwide
- Maritime and Coastal Archaeology
- Soil erosion and sediment transport
- Archaeological and Geological Studies
- Polar Research and Ecology
- Environmental and Cultural Studies in Latin America and Beyond
- Historical and socio-economic studies of Spain and related regions
- Hydraulic flow and structures
- Aeolian processes and effects
- Image Processing and 3D Reconstruction
- Archaeological and Historical Studies
- Geography Education and Pedagogy
- Environmental Engineering and Cultural Studies
- Innovative Educational Techniques
- earthquake and tectonic studies
Royal Holloway University of London
2015-2024
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
2004-2006
Consejo Superior de Investigaciones Científicas
2004-2006
Universidad Complutense de Madrid
2004
University of Exeter
1999
We present PATICE, a GIS database of Patagonian glacial geomorphology and recalibrated chronological data. PATICE includes 58,823 landforms 1,669 geochronological ages, extends from 38°S to 55°S in southern South America. use these data generate new empirical reconstructions the Ice Sheet (PIS) subsequent ice masses ice-dammed palaeolakes at 35 ka, 30 25 20 15 13 ka (synchronous with Antarctic Cold Reversal), 10 5 0.2 2011 AD. At PIS covered 492.6 x103 km2, had sea level equivalent ~1,496...
Abstract The Anthropocene is proposed as a new interval of geological time in which human influence on Earth and its record dominates over natural processes. A major challenge demarcating the that balance between human‐influenced processes varies spatial temporal scales owing to inherent variability both activities (as associated with culture modes development) drivers (e.g. tectonic activity sea level variation). Against this backdrop, we consider how geomorphology might contribute towards...
Abstract The effects of the topographic data source and resolution on hydraulic modelling floods were analysed. Seven digital terrain models (DTMs) generated from three different altimetric sources: a global positioning system (GPS) survey bathymetry; high‐resolution laser altimetry LiDAR (light detection ranging); vectorial cartography (1:5000). Hydraulic results obtained, using HEC‐RAS one‐dimensional model, for all seven DTMs. importance DTM's accuracy was analysed within contexts: (1)...
ABSTRACT The ‘Anthropocene’, as used to describe the interval of recent Earth history during which humans have had an ‘overwhelming’ effect on system, is now being formally considered a possible new geological Epoch. Such time (possibly equivalent Pleistocene Epoch) requires both theoretical justification well empirical evidence preserved within record. Since record driven by geomorphological processes that produce terrestrial and near‐shore stratigraphy, geomorphology has be integral part...
Abstract Cumulative probability functions (CPFs) for large numbers of radiocarbon age determinations are increasingly being used by scientists as a methodology to discern environmental histories. While the recent compilation regional databases dating control fluvial sediment sequences has been beneficial identifying gaps in knowledge and stimulating new research, there number problems that critically undermine use these CPFs sensitive hydroclimatic proxies. (i) The CPF method is underpinned...
Modelling experiments of drainage events from proglacial lakes the Río Baker catchment (central Patagonia, 46–48 ⁰S) indicate that Atlantic-Pacific reversals may have caused freshwater forcing regional climate. However, much region remains unmapped in detail and available geochronological data is equivocal, leading to multiple published palaeolake evolution models. We evaluate these models through new geomorphological mapping valley; cosmogenic dating moraine boulders demonstrates an...
This paper presents a glacial geomorphological map of landforms produced by the Lago General Carrera–Buenos Aires and Cochrane–Pueyrredón ice lobes former Patagonian Ice Sheet. Over 35,000 were digitized into Geographical Information System from high-resolution (<15 m) satellite imagery, supported field mapping. The illustrates rich suite ice-marginal glacigenic, subglacial, glaciofluvial glaciolacustrine landforms, many which have not been mapped previously (e.g. hummocky terrain, till...
Abstract A long-term flood record from the Buffels River, largest ephemeral river of NW South Africa (9250 km 2 ), was reconstructed based on interpretation palaeoflood, documentary and instrumental rainfall data. Palaeoflood data were obtained at three study reaches, with preserved sedimentary evidence indicating least 25 large floods during last 700 yr. Geochronological control for palaeoflood provided by radiocarbon optically stimulated luminescence (OSL) dating. Annual resolution since...
Due to the predicted impacts of future climate on hydrology, morphological changes river channels are expected. Quantifying magnitudes and rates channel change is important for sustainable management. To date, reviews simulation approaches investigating modelling environmental form process have focused contemporary or palaeo perspectives. Hence, herein we review numerical available reach-scale in-channel hydro- morphodynamic modelled. We found that despite their widespread availability,...
Glaciolacustrine varves offer the potential to construct continuous, annually-resolved chronologies for ice-sheet deglaciation, and improved understanding of glacier retreat dynamics. This paper investigates laminated glaciolacustrine sediments deposited around waning margins Patagonian Ice Sheet, following local Last Glacial Maximum (LGM). Detailed macro- microfacies analyses confirm an annual (varve) structure within these sediments. The correlation layers (varves) across five sites in...
Abstract This paper presents a reconstruction of the catastrophic floods AD 1617 in Catalonia (northeast Spain). Compilation archival data sources shows that heavy rainfall occurred from 2 to 6 November and resultant flooding caused severe damage throughout region, including destruction at least 389 houses, 22 bridges 17 water mills. Discharges 2700–4500 m3 s−1 ≤2000 were estimated dated palaeostage indicators for Ter Segre rivers, respectively, whilst 4680 was calculated Llobregat River...
We present 14 new 10Be cosmogenic nuclide exposure ages quantifying asynchronous readvances during the Antarctic Cold Reversal from glaciers in Baker Valley region of central Patagonia. constrain glacier and ice-dammed palaeolake dynamics using a landsystems approach, concentrating on outlet eastern Northern Patagonian Icefield (NPI) Monte San Lorenzo (MSL). Soler Glacier produced lateral moraines above Lago Bertrand 15.1 ± 0.7 to 14.0 0.6 ka, when it dammed drainage General Carrera/Buenos...
Glacier outburst floods are a major hazard in glacierized catchments. Global analyses have shown reduced frequency of glacier over recent decades but there is limited longer-term data on event magnitude and frequency. Here, we present Holocene palaeoflood record from the Río Baker (Chilean Patagonia), quantifying discharge timing millennial timescales. A catastrophic flood 110,000 m3/s (0.11 Sv) occurred at 9.6 ± 0.8 ka, during final stages Late Glacial Interglacial Transition, followed by...
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 largest river Namaqualand (NW South Africa), region with scarce stream flow records limiting research investigating hydrological response global change. Daily discharge annual flood series (1965–2006) were estimated from distributed rainfall-runoff model (TETIS) using rainfall gauge...