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Brian Chase

Brian CHASE - Director of Research CNRS
15
Documents
Affiliations actuelles
Identifiants chercheurs

Présentation

My Research primarily focuses on the study of past environmental change in the arid to sub-humid environments of southern Africa. While this region is highly sensitive to cycles of regional and global environmental change, and has the potential to be a valuable indicator of past climatic variability, only a very few palaeoenvironmental archives have been recovered from the area, and its environmental history remains poorly understood. As a result, models that have been developed to elucidate the dynamics of regional ecosystems, and the environmental context for human and cultural evolution are often contentious, lacking sufficient evidence to make robust interpretations. This paucity of palaeoenvironmental information is largely a function of the region’s climate that often precludes the preservation of organic proxy data sources. My research concentrates on overcoming these obstacles by identifying and analyzing proxy archives that have either not experienced or are resistant to the effects of the region’s pronounced seasonality. I am presently exploring several primary research themes: 1. The development of fossilised rock hyrax middens as new palaeoenvironmental archive. 2. Studies of sediment cores from coastal wetlands in South Africa. 3. The development of *pdf*-based botanical-climatological transfer functions to derive quantitative estimates of palaeoclimatic parameters from palaeobotanical datasets. 4. Statistical methods for time -series and spatial analyses that improve the reliability and interpretations of individual records, and the combination and comparison of records. 5. Methods for data-model comparison that maximise the potential to infer the dynamical processes responsible for the environmental processes observed in the fossil record. 6. The assessment of the impact of past climate change on the development of the Cape Floristic Region. 7. The assessment of the impact of past environmental change on the development of early modern humans. [Google Scholar Metrics](https://scholar.google.fr/citations?user=CnGmVGcAAAAJ&hl=en "Google Scholar Citations")

Publications

86709
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Temperature change in subtropical southeastern Africa during the past 790,000 yr

Manuel Chevalier , Brian M. Chase , Lynne J Quick , Lydie Dupont , Thomas Johnson
Geology, 2021, ⟨10.1130/G47841.1⟩
Article dans une revue hal-02933338v1
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Pollen-based climate reconstruction techniques for late Quaternary studies

Manuel Chevalier , Basil A.S. Davis , Oliver Heiri , Heikki Seppä , Brian M. Chase
Earth-Science Reviews, 2020, 210, pp.1-33. ⟨10.1016/j.earscirev.2020.103384⟩
Article dans une revue hal-02984067v1
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High-resolution record of Holocene climate change dynamics from southern Africa's temperate-tropical boundary, Baviaanskloof, South Africa

Brian Chase , Arnoud Boom , Andrew Carr , Lynne J Quick , Paula Reimer
Palaeogeography, Palaeoclimatology, Palaeoecology, 2020, 539, pp.109518. ⟨10.1016/j.palaeo.2019.109518⟩
Article dans une revue hal-02408419v1
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Extreme hydroclimate response gradients within the western Cape Floristic region of South Africa since the Last Glacial Maximum

Brian Chase , Arnoud Boom , Andrew Carr , Manuel Chevalier , Lynne J Quick
Quaternary Science Reviews, 2019, 219, pp.297-307. ⟨10.1016/j.quascirev.2019.07.006⟩
Article dans une revue hal-02264496v1

Hydrogen isotope fractionation of leaf wax n -alkanes in southern African soils

Nicole Herrmann , Arnoud Boom , Andrew S. Carr , Brian Chase , Adam G. West
Organic Geochemistry, 2017, 109, pp.1 - 13. ⟨10.1016/j.orggeochem.2017.03.008⟩
Article dans une revue hal-01817652v1

Qualitative assessment of PMIP3 rainfall simulations across the eastern African monsoon domains during the mid-Holocene and the Last Glacial Maximum

Manuel Chevalier , Simon Brewer , Brian Chase
Quaternary Science Reviews, 2017, 156, pp.107-120. ⟨10.1016/j.quascirev.2016.11.028⟩
Article dans une revue hal-01817650v1

Stable isotope analyses of rock hyrax faecal pellets, hyraceum and associated vegetation in southern Africa: Implications for dietary ecology and palaeoenvironmental reconstructions

Andrew S. Carr , Brian M. Chase , Arnoud Boom , Javier Medina-Sanchez
Journal of Arid Environments, 2016, 134, pp.33 - 48. ⟨10.1016/j.jaridenv.2016.06.013⟩
Article dans une revue hal-01817642v1

Determining the drivers of long-term aridity variability: a southern African case study

Manuel Chevalier , Brian Chase
Journal of Quaternary Science, 2016, 31 (2), pp.143-151. ⟨10.1002/jqs.2850⟩
Article dans une revue hal-01817630v1

The spatial extent and dynamics of the Antarctic Cold Reversal

Joel B. Pedro , Helen C. Bostock , Cecilia M. Bitz , Feng He , Marcus J. Vandergoes
Nature Geoscience, 2016, 9 (1), pp.51 - 55. ⟨10.1038/NGEO2580⟩
Article dans une revue hal-01817623v1

50,000 years of vegetation and climate change in the southern Namib Desert, Pella, South Africa

Sophak Lim , Brian Chase , Manuel Chevalier , Paula J. Reimer
Palaeogeography, Palaeoclimatology, Palaeoecology, 2016, 451, pp.197-209. ⟨10.1016/j.palaeo.2016.03.001⟩
Article dans une revue hal-01817628v1

Influence of tropical easterlies in southern Africa's winter rainfall zone during the Holocene

Brian M. Chase , Sophak Lim , Manuel Chevalier , Arnoud Boom , Andrew S. Carr
Quaternary Science Reviews, 2015, 107, pp.138 - 148. ⟨10.1016/j.quascirev.2014.10.011⟩
Article dans une revue hal-01817617v1

Evolving southwest African response to abrupt deglacial North Atlantic climate change events

Brian Chase , Arnoud Boom , Andrew S. Carré , Matthieu Carr , Manuel Chevalier
Quaternary Science Reviews, 2015, 121, pp.132 - 136. ⟨10.1016/j.quascirev.2015.05.023⟩
Article dans une revue hal-01817611v1

Southeast African records reveal a coherent shift from high- to low-latitude forcing mechanisms along the east African margin across last glacial–interglacial transition

Manuel Chevalier , Brian Chase
Quaternary Science Reviews, 2015, 125, pp.117 - 130. ⟨10.1016/j.quascirev.2015.07.009⟩
Article dans une revue hal-01817619v1

Quantification of climate change for the last 20,000years from Wonderkrater, South Africa: Implications for the long-term dynamics of the Intertropical Convergence Zone

Loïc Truc , Manuel Chevalier , Charly Favier , Rachid Cheddadi , Michael E. Meadows
Palaeogeography, Palaeoclimatology, Palaeoecology, 2013, 386, pp.575 - 587. ⟨10.1016/j.palaeo.2013.06.024⟩
Article dans une revue hal-01817560v1

Holocene climate change in southernmost South Africa: rock hyrax middens record shifts in the southern westerlies

Brian Chase , Arnoud Boom , Andrew S. Carr , Michael E. Meadows , Paula J. Reimer
Quaternary Science Reviews, 2013, 82, pp.199 - 205. ⟨10.1016/j.quascirev.2013.10.018⟩
Article dans une revue hal-01817586v1