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High-resolution palaeoclimate reconstructions are essential to identify possible influences of climate variability on landscape evolution and landscape-related cultural changes (e.g., shifting settlement patterns and long-distance trade relations). Northwestern Europe is an ideal research area for comparison between climate variability and cultural transitions given its geomorphological diversity and the significant cultural changes that took place in this region during the last two millennia (e.g., the decline of the Roman Empire and the transition to medieval kingdoms). We compiled climate reconstructions for sites in Northwestern Europe from the literature and its underlying data. The compilation of the different temperature reconstructions shows similar trends in most of the records. Colder conditions since AD 300 for a period of approximately 400 years and warmer conditions after AD 700 become apparent. The compilation of the different precipitation reconstructions also show similar trends. Dry periods are indicated by all records around AD 400 and 600, although precipitation records do not show the same spatial continuity as the temperature proxies. This study shows that clear climate changes occurred over Northwestern Europe in the period between AD 300 and 700, which are partly reflected by changes in seasonality.
Climate of the Past
A regional climate palaeosimulation for Europe in the period 1500–1990 – Part 1: Model validation2013 •
Climate of the Past
A regional climate palaeosimulation for Europe in the period 1500–1990 – Part 1: Model validation2013 •
Egu General Assembly Conference Abstracts
The Medieval Climate (A)nomaly over Europe2013 •
We present a new gridded (5°x5°) European summer (JJA) temperature reconstruction back to 750 C.E. and compare it to an ensemble of millennium length forced transient climate model (general circulation models, GCMs) runs, focusing on warmer periods during the last 1500 years. The reconstruction is based on ten long, high quality tree ring records and one composite documentary record, all of them annually resolved. The spatial coverage spans the area 41°N-68°N and 1°E-25°E. Instrumental data used are the seasonal summer (JJA) means from grid cells of the CRUTEM4v dataset in the area 35°N-70°N and 10°W-40°W. Since the climate archives are on land only, we limited the analysis to land mass grid cells, omitting small islands and Iceland. The climate field reconstruction was then performed using Bayesian inference on a localized stochastic description of the underlying processes (Tingley and Huybers 2010a,b; Werner et al. 2012). Using chains with different initial conditions as well as subsets of the data, we arrive at estimates for the posterior distributions. These were then used in a predictive experiment, keeping the model parameters fixed and only updating the temperatures. Here, the full proxy data were used while ommitting the intrumental data. This results in a multivariate distribution of temperature reconstructions from 750 - 2003 CE. The mean of this distribution can be considered an optimal estimate of the gridded annual summer temperature anomalies, the width delivers impartial reconstruction uncertainties. The derived reconstruction is compared with independent long instrumental and proxy data on decadal-to-centennial time scales, showing in general very good agreement on the magnitude and timing of cooler and warmer years. The simulations are grouped in two categories depending on the magnitude of change in solar forcing used to drive the model. We then compare the new gridded reconstruction with the GCM results, focusing on two key periods over the last one and a half millennia: the Little Ice Age (LIA) and the Medieval Climate Anomaly (MCA). While the reconstructions and the ensembles of simulations show higher medieval temperatures and cooler temperatures during the LIA, the spatial distribution of anomalies and the range of values differ. The warm episodes from 7th to 12th century compare well to the warm summer temeratures in the late 20th century and early 21st century, both in spatial extent and magnitude. However, the warm summer of 2003 still remains to be the warmest year in the considered time span, both at the grid cell scale but also when considering the European averages. Tingley M.P. and Huybers P. JClim 10, 2759-2781, 2782-2800 (2010a,b) Werner J.P. et al. JClim accepted (2012)
2010 •
2010 •
Blogpost providing an abstract of an upcoming Junior Research Group at GWZO Leipzig, financed by a Volkswagen Freigeist Fellowship from March 2017 for 5 years
Lecture Notes in Earth Sciences
Variations in the spring-summer climate of central europe from the high middle ages to 1850Quaternary Science Reviews
A compilation of Western European terrestrial records 60–8 ka BP: towards an understanding of latitudinal climatic gradients2014 •
Journal of Interdisciplinary History
McCormick, Cook, Harper, Huybers, Alexander F. More, Mayewski, et al., "Climate Change during and after the Roman Empire: Reconstructing the Past from Scientific and Historical Evidence."Leadership styles and their impact on empowering teams
رسالة نهائية للطباعة2018 •
2019 •
2024 •
2018 •
Creative Industries Journal
‘The song factories have closed!’: songwriting camps as spaces of collaborative creativity in the post-industrial age2024 •
Interface: a journal for and about social movements
Labour movements in the global South: a prominent role in struggles against neoliberal globalisation2012 •
Journal of Plant Physiology
Targeted knockdown of ribulose-1, 5-bisphosphate carboxylase-oxygenase in rice mesophyll cells2021 •
Ceramica ştampilată de la Porolissum. Die gestempelten Keramik von Porolissum. POROLISSUM. UN COMPLEX ARHEOLOGIC DACO-ROMAN LA MARGINEA DE NORD A IMPERIULUI ROMAN, VOL. V
Ceramica ştampilată de la Porolissum. Die gestempelten Keramik von Porolissum,2008 •
Agriculturae Conspectus …
Challenges of Small Ruminants Production in Selected Urban Communities of Abeokuta, Ogun State, Nigeria2011 •
Baltic Journal of Law & Politics
Assessing Determinants and Impact of Possible Russian Influence in the Western Balkan Countries2023 •
HAL (Le Centre pour la Communication Scientifique Directe)
Incertitude de l’entrepreneuriat culturel et financement par la foule2017 •
Hungarian educational research journal
Drama in STEAM education: Possible approaches and connections to drama-based activities in STEAM education2024 •
GOT - Journal of Geography and Spatial Planning
Solidariedade Frente À Desigualdade Em Tempos De Pandemia: Um Olhar a Partir De Curitiba (Brasil)