People and Institutions



Scientific coordinator

Elena Roget correu

Web contents manager

Anna Drou correu

People and Institutions

Suzanne Leroy

Personal webpage:

Place of work:

Institute for the Environment, Brunel University

Professional experience:

1993-1995: Associate director of the core project office of PAGES/IGBP (International Geosphere-Biosphere Programme) at the University of Berne, Switzerland, in charge of the information and organisation of contacts between international specialists. Establishment of research and recommend implementation plan for funding agencies. Editor of PAGES Newsletter. Office funded by US NSF and Swiss NSF.

1998: NI Dev R lecturer B in palaeoecology and environment reconstruction.

Management of past climate change research programs.

2000-2007: Chair at the Department of Geography and Earth Sciences and leader of the “Catastrophic and Environmental Change” Research Group.

Lectureship at the centre for palaeoecology, at Queen's University, Belfast, UK.

Research on palaeoclimates from Holocene lakes of the Middle East, as well on Irish lakes.

2007-present: Chair at the Institute for the Environment (strategic research institute), leader of the “Catastrophic and Environmental Change” Research Group and head of post-graduate research students.

Professor of Geography and Earth Sciences at Brunel University.

Topics of interest:

Palynology palaeo-ecology; palaeoclimatology; biogeography; multi-proxy palaeo-environmental reconstruction; natural hazards, from the Pliocene to the Modern times, from western Mediterranean region to central Asia.

Active research projects:

2010-14: Marie Curie IRSES CLIMSEAS “Climate Change and Inland Seas: Phenomena, Feedback and Uncertainties. The Physical Science Basis”, partner 2.

July 2009-July 2010: Max Plank Institute for Meteorology-Hamburg: ‘Caspian Sea level change for the 21st century’. Application 572-BMBF. K. Arpe and S. Leroy. Computer time: 2500 CPU hours.

From January 2010-2012, Ministry of Education and Sciences, Madrid, Spain on “PALEOFLORA IBÉRICA II: El cambio ecológico como contingencia antropológica”. Leroy is participant, J. Carrion is leader.

Representative publications:

Leroy S.A.G., Zolitschka B., Negendank J. and Seret G., 2000. Palynological analyses in the laminated sediment of Lake Holzmaar (Eifel, Germany): duration of Lateglacial and Preboreal biozones. Boreas (March) 29, 1: 52-71.

Leroy S., Kazancı N., Ileri Ö., Kibar M., Emre O., McGee E. and Griffiths H. I 2002. Abrupt environmental changes within a late Holocene lacustrine sequence south of the Marmara Sea (Lake Manyas, N-W Turkey): possible links with seismic events. Special issue of Marine Geology on "Quaternary Tectonic and Paleoclimatic-Paleoceanographic Evolution of the Marmara Sea and Environs: a collection of papers dedicated to the memories of Drs. Ihsan Ketin and Aykut Barka". Edited by A. Aksu. 190/1-2: 531-552.

Giralt, S., Julià, R., Leroy, S. and Gasse, F. 2003. Cyclic water level oscillations of the KaraBogaz Gol - Caspian Sea system. Earth and Planetary Science Letters 212 (1-2): 225-239.

Marret F., Leroy S., Chalié F. and Gasse F. 2004. New organic-walled dinoflagellate cysts from recent sediments of central Asian seas. Review of Palaeobotany and Palynology 129: 1– 20.

Kazancı N., Gulbabazadeh T., Leroy S.A.G. and Ileri O., 2004. Sedimentary and environmental characteristics of the Gilan-Mazenderan plain, northern Iran: influence of long- and short-term Caspian water level fluctuations on geomorphology. Journal of Marine Systems 46, 1-4: 145-168.
(translation in Farsi available)

Kazancı N., Leroy S., Ileri Ö., Emre O., Kibar, M. and Öncel, S., 2004. Late Holocene erosion in NW Anatolia from sediments of Lake Manyas, Lake Ulubat and the southern shelf of the Marmara Sea, Turkey. Catena 57: 277-308.

Kazancı N., Toprak, Ö., Leroy S.A.G., Öncel S., Ileri Ö., Emre Ö., Costa P., Erturaç, K., McGee E., 2006. Boron content of Lake Ulubat sediment: a key to interpret the morphological history of NW Anatolia, Turkey. Applied Geochemistry 21: 134-151

Hooghiemstra H., Lézine A.-M., Leroy S.A.G., Dupont L. and Marret F., 2006. Late Quaternary palynology in marine sediments: a synthesis of the understanding of pollen distribution patterns in the NW African setting. Quaternary International, 148: 29-44.

 Leroy S.A.G., Marret F., Giralt S. and Bulatov S. A., 2006. Natural and anthropogenic rapid changes in the Kara-Bogaz Gol over the last two centuries by palynological analyses. Quaternary International, 150: 52-70.

Leroy S.A.G. and Simms M., 2006. Iron Age to Medieval entomogamous vegetation and Rhinolophus hipposideros roost in south-eastern Wales (UK). Special issue on “Advances in the interpretation of pollen and spores in coprolites” ed.: Owen K. Davis. Palaeogeography, Palaeoclimatology, Palaeoecology 237: 4-18.

Leroy S.A.G., 2006. From natural hazard to environmental catastrophe, past and present. Quaternary International. 158-1: 4-12.

Leroy S.A.G., 2007. Progress in palynology of the Gelasian-Calabrian Stages in Europe: ten messages. Revue de Micropaléontologie (Elsevier) 50: 293-308.

Arpe K. and Leroy S.A.G., 2007. The Caspian Sea Level forced by the atmospheric circulation, as observed and modelled. Quaternary International 173-174: 144-152

Leroy S.A.G. and Arpe K., 2007. Glacial refugia for summer-green trees in Europe and S-W Asia as proposed by ECHAM3 time-slice atmospheric model simulations. Journal of Biogeography 34, 2115-2128.

Westgarth-Smith A.R., Leroy S.A.G., Collins P.E.F. and Harrington R., 2007. Temporal variations in English populations of a forest insect pest, the green spruce aphid (Elatobium abietinum), associated with the North Atlantic Oscillation and global warming. Quaternary International, 173-174: 153-160. With a Nature highlight, week of 10 Dec. 2007

 Leroy S.A.G., Marret F., Gibert E., Chalié F., Reyss J-L. and Arpe K., 2007. River inflow and salinity changes in the Caspian Sea during the last 5500 years. Quaternary Science Reviews 26: 3359-3383.

Vincens A., Lézine A-M, Buchet G, Lewden D, Le Thomas A., and Contributors, 2007. African pollen database inventory of tree and shrub pollen types. Review of Palaeobotany and Palynology 145, 135–141.

Proske U., Hanebuth T., Meggers H. and Leroy S., 2008 Tidal flat sedimentation during the last millennium in the northern area of the Tidra Island, Banc d’Arguin, Mauritania. J African Earth Sciences 50: 37-48

Leroy S. A. G., 2008. Vegetation cycles in a disturbed sequence around the Cobb-Mountain subchron in Catalonia. JoPl 40, 3: 851-868.

Jiang W., Leroy S.A.G., Ogle N., Chu G., Luo W., and Liu J., 2008. Natural and anthropogenic forest fires recorded in the Holocene pollen record from a Jinchuan peat bog, northeastern China. Palaeogeography, Palaeoclimatology, Palaeoecology 261/1-2: 47-57.

Djamali M., de Beaulieu J.-L., Shah-Hosseini M., Andrieu-Ponel V., Ponel P., Amini A., Akhani H., Leroy S., Stevens L., Lahijani H., Brewer S., 2008. A Late Pleistocene long pollen record from Lake Urmia, NW Iran. Quaternary Research 69: 413-420. IF 2.2.

Mertens, K. …, Leroy, S. A. G. and co-authors, 2009. Process length variation in cysts of a dinoflagellate, Lingulodinium machaerophorum, in surface sediments: investigating its potential as salinity proxy. Marine Micropal 70, 54-69.

Arpe K. and Leroy S. A. G., 2009. Impacts from SSTs, ENSO, stratospheric QBO and global warming on Hurricanes over the North Atlantic. Quaternary International 195: 4-14.

Cordova C., Harrison S., Mudie P., Riehl S., Leroy S.A.G., Ortiz N., 2009. Pollen, macrofossils and charcoal records for palaeovegetation reconstruction in the Mediterranean-Black Sea corridor since the last Glacial Maximum. Quaternary International 197, 1-2: 12-16.

Djamali, M., de Beaulieu, J.-L., Campagne, P., Akhani H., Andrieu-Ponel, V., Ponel, P., Leroy, S., 2009. Modern pollen rain-vegetation relationships along a forest-steppe transect in the Golestan National Park, N-E Iran. RPP 153, 3-4, 272-281.

Schwab, M. J., Werner, P., Dulski, P., McGee, E., Nowaczyk, N., Bertrand, S., Leroy, S. A. G., 2009. Palaeolimnology of Lake Sapanca and identification of historic earthquake signals, Northern Anatolian Fault Zone (Turkey). J. Clague and O. Korup SI Quat Sc Rev 28: 991-1005.

Leroy S A G, Boyraz S and Gürbüz A., 2009. High-resolution palynological analysis in Lake Sapanca as a tool to detect earthquakes on the North Anatolian Fault. Quat Sc Rev 28: 2616-2632.

Kazancı N., Leroy S.A.G., Öncel S., Ileri Ö., Toprak, Ö., Costa P., Sayılı S., Turgut C., Kibar M, 2010. Wind control on the accumulation of heavy metals in sediment of Lake Ulubat, Anatolia, Turkey. J Paleolimnol. 43: 89-110.

Leroy S.A.G., 2010. Pollen analysis of core DS7-1 (Dead Sea) showing intertwined effects of climatic change and human activities in the Late Holocene. JAS 37, 306-316.

Gürbüz A. and Leroy S.A.G., 2010. Science versus myth: Was there a connection between the Marmara Sea and Lake Sapanca? J Quat Sc. 25, 2, 103-114.

Leroy S.A.G., Marco S., Bookman R. and Miller Ch. S., 2010. Impact of earthquakes on agriculture during the Roman-Byzantine period in the Dead Sea laminated sediment. Quat Res 73, 191-200.

Neumann F H, Kagan E J, Leroy SAG and Baruch U., online. Vegetation history and climatic fluctuations on a transect along the Dead Sea west shore and impact on past societies over the last 3500 years. Journal of Arid Environments, online 28 May 2009. doi:10.1016/j.jaridenv.2009.04.015.

González-Sampériz P., Leroy S.A.G., Fernández S., García-Antón M., Gil-García M. J., Uzquiano P., Valero-Garcés B., Figueiral I., accepted pending revisions. Steppes, savannahs, forests and phytodiversity reservoirs during the Pleistocene in the Iberian Peninsula. RPP.

Moir A., Leroy S.A.G, Brown D, Collins P., accepted with minor changes. Dendrochronological evidence for a lower water table on peatland around 3200-3000 BC from sub-fossil pine in northern Scotland. The Holocene.

Leroy S.A.G., Schwab M.J., Costa P.J.M., in press. Seismic influence on the last 1500-year infill history of Lake Sapanca (N-W Turkey, North Anatolian Fault). Tectonophysics online 19 Feb. 2010.

Leroy S.A.G., Albay M., in press. Palynomorphs of brackish and marine species in cores from the freshwater Lake Sapanca, NW Turkey: further evidence of palaeo-contacts with the Black Sea? RPP online 2 March 2010

Leroy S.A.G., Arpe, K. and Mikolajewicz U., in press. Vegetation context and climatic limits of the Early Pleistocene hominin dispersal in Europe. QSR online16 March. 10.

Pierret, MC., Chabaux, F., Leroy, SAG. and Causse, C., 2012. A record of Late Quaternary continental weathering in the sediment of the Caspian Sea: Evidence from U-Th, Sr isotopes, trace element and palynological data, Quaternary Science Reviews 51 40- 55

Tudryn A., Chalié F., Lavrushin Yu.A., Antipov M.P., Spiridonova E.A., V. Lavrushin, Tucholka P., and Leroy S. A. G., online 12 Oct. 2012. Late Quaternary Caspian Sea environment: Late Khazarian and Early Khvalynian transgressions from the lower reaches of the Volga river. Quat Inter. 12 pages

Arpe, K., Leroy, S.A.G., Lahijani, H., and Khan, V., 2012: Impact of the European Russia drought in 2010 on the Caspian Sea level, Hydrology and Earth System Science, 16, 19-27, doi:10.5194/hess-16-19-2012.


 I am planning to publish my pollen-dinocyst data on 2 long cores from the south Caspian Sea basin covering the last 13,000 years, soon. But the chronology is sticking.

The laboratory of Brunel is equipped with grain size analyzer, Pb counters, pollen, diatom and macrofossil extraction and counting facilities, various geochemistry instruments, facilities for making thin sections, various Bartington magnetic susceptibility probes.