52 documents found, page 1 of 6

Rising atmospheric CO2 concentrations: the overlooked factor promoting SW Iberi...

A cross the last deglaciation, the atmospheric CO2 concentration (CO2) increased substantially from ∼ 180 to ∼ 280 ppm, yet its impact on vegetation dynamics across this major climatic transition remains insufficiently understood. In particular, Iberian pollen records reveal an intriguing feature that can be related to an often-overlooked role of CO2 in shaping vegetation responses during the last deglaciation....

Environmental changes in the Fleuve Manche paleoriver drainage system (Western ...

Marine microfossils (dinoflagellate cysts and planktonic foraminifera) and geochemical (XRF-Ti/Ca)-based matic records from a core (MD13-3438) located off the Fleuve Manche (FM) paleo-mouth have revealed sustained warm summer sea surface temperatures (SSTs) during sub-millennial climate changes within (similar to 18-14.7 ka) may have played a key role in the FM regime related to the European Ice Sheet (EIS) mel...

Understanding the Atlantic influence on climate and vegetation dynamics in west...

Predicting the environmental impact of climate change in extremely sensitive areas, like western Iberia, requires an understanding of the long-term interactions between climate and vegetation. Here we present a novel hightemporal resolution multiproxy analysis, including plant-wax n-alkane isotope data, pollen analysis, macrocharcoal identification, chironomid and diatom records of sediments from a mountain lak...

The timing of the deglaciation in the Atlantic Iberian mountains: Insights from...

Understanding the environmental response to the last glacial termination in regions located in transitional climate zones such as the Atlantic Iberian mountains is crucial to estimate potential changes in regions affected by current glacial melting. We present an 8.5 m-long, solid last deglaciation and Holocene chronostratigraphic record including detailed sediment analysis from Lake Peix˜ao, a pro-glacial lake...

The timing of the deglaciation in the Atlantic Iberian mountains: Insights from...

Understanding the environmental response to the last glacial termination in regions located in transitional climate zones such as the Atlantic Iberian mountains is crucial to estimatjavascript:void(null);e potential changes in regions affected by current glacial melting. We present an 8.5 m-long, solid last deglaciation and Holocene chronostratigraphic record including detailed sediment analysis from Lake Peixã...

The timing of the deglaciation in the Atlantic Iberian mountains: Insights from...

Understanding the environmental response to the last glacial termination in regions located in transitional climate zones such as the Atlantic Iberian mountains is crucial to estimate potential changes in regions affected by current glacial melting. We present an 8.5 m-long, solid last deglaciation and Holocene chronostratigraphic record including detailed sediment analysis from Lake Peixao, a pro-glacial lake ...

The timing of the deglaciation in the Atlantic Iberian mountains: Insights from...

Understanding the environmental response to the last glacial termination in regions located in transitional climate zones such as the Atlantic Iberian mountains is crucial to estimate potential changes in regions affected by current glacial melting. We present an 8.5 m-long, solid last deglaciation and Holocene chronostratigraphic record including detailed sediment analysis from Lake Peix˜ao, a pro-glacial lake...

Modern relationships between microscopic charcoal in marine sediments and fire ...

Marine microcharcoal records provide invaluable information to understand changes in biomass burning and its drivers over multiple glacial and interglacial cycles and to evaluate fire models under warmer climates than today. However, quantitative reconstructions of burnt area, fire intensity and frequency from these records need calibration studies of the current fire-microcharcoal relationship. Here, we presen...

The Late Pleistocene-Holocene sedimentary evolution of the Sines Contourite Dri...

Combination of insolation and ice-sheet forcing drive enhanced humidity in nort...

Marine Isotope Stage (MIS) 13, similar to 533-478 ka, has received particular attention due to the unexpected enhancement of monsoon systems under a cool climate characterized by lower atmospheric CO2 and larger ice volume than many other interglacials. Key questions remain about its regional expression (intensity, climate variability, length), and underlying forcing factors, in particular at the mid-latitudes....