Results 31 to 40 of about 15,148 (249)

Climate-Provenance Effect on the Organic Matter Enrichment of the Chang 9 Source Rocks in the Central Ordos Basin, China

Geofluids, 2021
The Upper Triassic Chang 9 organic-rich sediments have been considered as effective hydrocarbon source rocks for the Mesozoic petroleum system in the Ordos Basin.
Ling Ma, Zhihuan Zhang, Weiqiu Meng
doaj   +1 more source

Baradla-Domica Cave

, 2022
The Quaternary epoch is noted for not only many cycles of glacial growth and retreat, but also impactful climate and precipitation variability. The present study brings an insight into the boundaries of Pleistocene and Holocene series from a high ...
Silva, Lucas
core  

Reconstruction of a Two-Dimensional Blocking Index During the Last Four Hundred Years Using Gridded Temperature and Precipitation Data

Atmosphere
We present a two-dimensional reconstruction of blocking frequency indices in the Atlantic-European region spanning the last 400 years. Our approach is based on a simple field reconstruction scheme similar to the principal component regression method. The
Norel Rimbu, Monica Ionita, Tobias Spiegl, Gerrit Lohmann   +3 more
doaj   +1 more source

Paleoclimate-induced stress on polar forested ecosystems prior to the Permian–Triassic mass extinction

Scientific Reports, 2022
The end-Permian extinction (EPE) has been considered to be contemporaneous on land and in the oceans. However, re-examined floristic records and new radiometric ages from Gondwana indicate a nuanced terrestrial ecosystem response to EPE global change ...
Erik L. Gulbranson, Morgan M. Mellum, Valentina Corti, Aidan Dahlseid, Brian A. Atkinson, Patricia E. Ryberg, Gianluca Cornamusini   +6 more
doaj   +1 more source

Paleoclimate-conditioning reveals a North Africa land-atmosphere tipping point [PDF]

, 2021
While paleoclimate records show that the Earth System is characterized by several different tipping points, their representation within Earth System models (ESMs) remains poorly constrained.
Valdes, Paul J., Hopcroft, Peter
core   +1 more source

Drivers of winter Arctic sea ice variability

npj Climate and Atmospheric Science
Winter Arctic sea ice concentration (SIC) variability reflects both anthropogenic warming and internal climate variability, but separating their Arctic signatures remains difficult.
P. Vaideanu, C. Stepanek, D. R. Nichita, M. Dima, M. Ionita, G. Lohmann   +5 more
doaj   +1 more source

H11 meltwater and standard 127 ka Last Interglacial simulations suggest more modest peak temperatures for both Greenland and Antarctica: a multi-model study of water isotopes [PDF]

Climate of the Past
The Last Interglacial (LIG) period, approximately 130 000 to 115 000 years ago, represents one of the warmest intervals of the past 800 000 years. Here, we simulate water isotopes in precipitation over Antarctica and the Arctic during the LIG, using ...
L. C. Sime, R. Sivankutty, I. Malmierca-Vallet, S. Goursaud Oger, S. Goursaud Oger, A. N. LeGrande, E. L. McClymont, A. de Boer, A. Cauquoin, M. Werner   +9 more
doaj   +1 more source

Glacier fluctuations in the northern Patagonian Andes (44°S) imply wind-modulated interhemispheric in-phase climate shifts during Termination 1

Scientific Reports, 2022
The Last Glacial Termination (T1) featured major changes in global circulation systems that led to a shift from glacial to interglacial climate. While polar ice cores attest to an antiphased thermal pattern at millennial timescales, recent well-dated ...
Rodrigo L. Soteres, Esteban A. Sagredo, Michael R. Kaplan, Mateo A. Martini, Patricio I. Moreno, Scott A. Reynhout, Roseanne Schwartz, Joerg M. Schaefer   +7 more
doaj   +1 more source

Milankovitch, the father of paleoclimate modeling [PDF]

, 2021
The history of the long-term variations in the astronomical elements used in paleoclimate research shows that, contrary to what might be thought, Milutin Milankovitch is not the father of the astronomical theory but he is definitely the father of ...
Berger, André, A. Berger
core   +1 more source

Climatic drivers prevail in montane and lowland Odonata latitudinal diversity gradients, but human modification erodes lowland patterns

Ecography, EarlyView.
Latitudinal diversity gradients (LDGs) arise from the interplay of historical, ecological, and evolutionary processes, yet these drivers may differ across landforms. Mountains, with steep elevational and climatic gradients, often sustain distinct diversity dynamics compared with adjacent lowlands, where vertical climatic gradients are weak and human ...
Zhenyuan Liu, Bo‐Ping Han, Haomiao Zhang, Ramiro Martín‐Devasa, Jens‐Christian Svenning, Janne Soininen   +5 more
wiley   +1 more source