Exponential feedback effects in a parametric resonance climate model [PDF]
Scientific Reports, 2023 The variations in the distribution of solar radiation due to the ~ 105 years Milankovitch cycle, which is connected to the Earth eccentricity variation, cannot explain the sharp drop in temperature of 6 °C ÷ 10 °C that marks the transition from the ...
Maria Teresa Caccamo, Salvatore Magazù
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A dynamical systems perspective on the Mid-Pleistocene Transition. [PDF]
J R Soc N ZABSTRACT Long‐term cooling of Earth's climate led to repeated glaciations that from the Pliocene (5.3–2.6 Ma) into the Pleistocene (2.6 Ma–11.7 ka) became increasingly cold and asymmetric. Whether this progressive change in global climate was forced by external drivers, or arose entirely from internal feedbacks, is debated.
Golledge NR.
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When volcanoes record Milankovitch cycles
Frontiers in Earth ScienceCyclic fluctuations in the frequency and intensity of volcanic activity are recorded during periods of global climate change. Volcano-sedimentary successions (e.g., in near-coastal environments) may reveal the interplay of glacio-eustatic fluctuations ...
Gianluca Sottili, Danilo M. Palladino
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Orbital eccentricity and internal feedbacks drove the Triassic megamonsoon variability [PDF]
Scientific ReportsThe evolution of the Triassic megamonsoon was closely linked to Earth’s orbital variations. Despite recognizing secular orbital cycles as a fundamental pacemaker of the megamonsoon, the driving mechanisms remain unclear. Here, we use data-model synthesis
Runjian Chu +10 more
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The Effect of Additive and Multiplicative Cyclic Perturbations on Noise-Induced Tipping Dynamics [PDF]
EntropyThe dynamics of systems near tipping points attract considerable attention in the context of climate change, ecological regime shifts, disease spreading, and other complex systems undergoing transitions.
Igor A. Khovanov, Natasha A. Khovanova
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Decadal–centennial-scale solar-linked climate variations and millennial-scale internal oscillations during the Early Cretaceous [PDF]
Scientific Reports, 2022 Understanding climate variability and stability under extremely warm ‘greenhouse’ conditions in the past is essential for future climate predictions. However, information on millennial-scale (and shorter) climate variability during such periods is scarce,
Hitoshi Hasegawa +20 more
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Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement
Geophysical Monograph Series, Page 27-82., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jennifer Kasbohm +2 more
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China Geology, 2021 As cyclical orbital movements of Earth, Milankovitch cycles can be recorded in sedimentary strata. The time they reflect can be used to accurately divide and compare strata.
Shu-yu Wu +3 more
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Low-latitude climate variability in the Heinrich frequency band of the Late Cretaceous greenhouse world [PDF]
Climate of the Past, 2014 Deep marine successions of early Campanian age from DSDP (Deep Sea Drilling Project) site 516F drilled at low paleolatitudes in the South Atlantic reveal distinct sub-Milankovitch variability in addition to precession, obliquity and eccentricity-related ...
N. J. de Winter, C. Zeeden, F. J. Hilgen
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Testing the impact of stratigraphic uncertainty on spectral analyses of sedimentary series [PDF]
Climate of the Past, 2016 Spectral analysis is a key tool for identifying periodic patterns in sedimentary sequences, including astronomically related orbital signals. While most spectral analysis methods require equally spaced samples, this condition is rarely achieved either in
M. Martinez +4 more
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