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Climate of the Past
Scopus
ISSN 1814-9324 · Copernicus Publications · 2.196 artikel di indeks
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Carbon export and burial pathways driven by a low-latitude arc-continent collision
Chemical weathering of silicate rocks of low-latitude arc–continent collisions has been hypothesized as a driver of global cooling since the Neogene. In mid- to low-latitude regions, monsoon and tropical cyclone precipitation also drive intense physical erosion that contribute to terrestrial carbon…
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Past Ocean surface density from planktonic foraminifera calcite δ18O
Density of seawater is a critical property that controls ocean dynamics. Previous works suggest the use of the δ18O calcite of foraminifera as a potential proxy for paleodensity. However, potential quantitative reconstructions were limited to the tropical and subtropical surface ocean and without…
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10 000 years of snow avalanche activity in western Norway: a multiproxy lake sediment record from Lake Vatnasetvatnet, Hardanger
Long-term reconstructions provide critical insights into the interplay between large-scale climatic systems and snow avalanche frequency over millennial timescales. This study presents a ∼ 10 000-year-long snow avalanche record reconstructed from a continuous sediment sequence in a lake in western…
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A continuous 6000 a age depth relationship for the remainder of the Weißseespitze summit glacier based on 39Ar and 14C dating
Associated with ongoing global warming, prolonged periods of negative mass balance affect even Alpine glaciers in high summit regions, which are also prime candidates for paleoclimate-related ice core studies. This greatly complicates the already challenging task of establishing an age-depth…
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A global analysis of pollen-based reconstructions of land climate changes during Dansgaard–Oeschger events
Dansgaard–Oeschger (D–O) warming events are comparable in magnitude and rate to the anticipated 21st century warming. As such, they provide a good target for evaluation of the ability of state-of-the-art climate models to simulate rapid climate changes. Despite the wealth of qualitative information…
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Historical Droughts in British Colonial Belize (1771–1981)
Belize, located on the Caribbean coast of the Yucatan peninsula, is increasingly vulnerable to hydroclimatic hazards such as droughts, which have caused widespread agricultural losses, water shortages, and economic disruption in recent years. Despite these risks, long-term climate reconstructions…
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Drivers of the δ18O changes in Indian Summer Monsoon precipitation between the Last Glacial Maximum and pre-industrial period
In this study, we investigate the changes in water isotope ratios in the Indian summer monsoon precipitation (δ18Oprecip) during the Last Glacial Maximum (LGM, ∼ 21 ka Before Present) compared to the pre-industrial (PI) period, and the mechanisms driving these changes, using a general circulation…
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The oxygen valve on hydrogen escape since the great oxidation event
The Great Oxidation Event (GOE) was a 200 Myr transition circa 2.4 billion years ago that converted the Earth's anoxic atmosphere to one where molecular oxygen (O2) was abundant (volume mixing ratio >10-4). This significant rise in O2 is thought to have substantially throttled hydrogen (H) escape…
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Wine must yields as indicators of May to July climate in Central Europe, 1416–1988
The paper explores to which extent narrative documentary records on wine production in Central Europe can be used as a proxy for summer temperatures. Here, we compiled 11 regional series spanning from the early 15th century to 1988. We detrended the data to adjust for long-term biases such as…
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Contrasting early- and late-Holocene vegetation and wildfire regimes in a high-value drinking water supply area, Canada
Paleoenvironmental reconstructions of past ecosystems and fire regimes can strengthen interpretations of modelled future fire environments. In this study, sediment cores from four lakes in a high-value municipal water supply area are used to compare climate, vegetation, and fire along a regional…
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Geochronological reconstruction of the glacial evolution in the Ésera valley (Central Pyrenees) during the Late Pleistocene and Holocene
Since the MIS (Marine Isotope Stage) 4, glaciers in the Pyrenees were subject to intricate dynamics, encompassing some advances and retreats not always aligned with the fluctuations observed in other European glaciers. The Ésera valley, located in the Central Pyrenees (northern Spain), provides a…
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Storminess in North West Europe and volcanic activity during the Holocene
Evidence from observational records and model simulations suggest that volcanic eruptions can strengthen mid- to high-latitude atmospheric circulation and enhance westerly wind strength, with recent proxy data-model assimilations supporting this. However, assessments of Holocene variability in…
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Holocene fire regimes across the Altai-Sayan Mountains and adjacent plains: interaction with climate and vegetation types
The Altai-Sayan Mountains and adjacent plains (including the west Siberian Plain, Kazakhstan Hills and Junggar Basin) have experienced accelerated warming in recent decades, raising growing concerns about escalating wildfire risks. However, two key gaps hinder understanding: paleofire dynamics in…
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Role of paleogeography on large-scale circulation during the early Eocene
The configuration of continents and oceans has a major influence on Earth's climate by shaping large-scale atmospheric circulation patterns. In this study, we investigate the effect of early Eocene paleogeography, specifically from the Ypresian stage, on extratropical eddies. In our analysis we…
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Evaluation of nine gridded daily weather reconstructions for the European heatwave summer of 1807
Recent research of early instrumental measurements combined with numerical-statistical techniques has contributed to global atmospheric reanalysis as well as regional products that cover pre-1850 weather. The advent of machine learning (ML) raises the question of how well we can reconstruct weather…
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Seven centuries of rainfall reconstructed from Scots Pine ring width in sub-Arctic Sweden
As the sub-Arctic and Arctic regions undergoes rapid changes, understanding its hydroclimate history is more critical than ever. A limited availability of moisture-sensitive proxy data severely constrains our insights, underscoring the urgent need for more hydroclimate reconstructions in the…
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Decoding the North Atlantic Ocean circulation breakthrough in the Aptian–Albian transition
The Cretaceous experienced marked climatic variability driven by large igneous province volcanism, monsoonal dynamics and changes in ocean circulation, which strongly influenced the expression of oceanic anoxic events and Cretaceous Oceanic Red Beds (CORBs). Here we integrate cyclostratigraphic…
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Hydroclimatic variability and weather type characteristics in the Levant during the last interglacial
Proxy-based reconstructions of the Last Interglacial peak indicate changes in precipitation characteristics in the Levant. These reconstructions suggest that precipitation occurred in brief and intense events, particularly in the region's southern parts. Some studies have offered conflicting…
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The elusive 8.2 ka event in speleothems from southern France
The Holocene is generally considered a climatically stable period, yet a prominent perturbation occurred around 8.2 ka BP. Evidence of its impacts has been identified in many palaeoclimate archives across Europe. However, outside the Atlantic seaboard, no clear high-resolution signal for this event…
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How temperature seasonality drives interglacial permafrost dynamics: implications for paleo reconstructions and future thaw trajectories
Various proxy records have suggested widespread permafrost degradation in northern high latitudes during interglacial warm climates, including the mid Holocene (MH, 6000 years before present) and the last interglacial (LIG, 127 ka BP), and linked this to substantially warmer high-latitude climates…
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