A5074313858- Geology and Paleoclimatology Research
- Geomagnetism and Paleomagnetism Studies
- Climate variability and models
- Paleontology and Stratigraphy of Fossils
- Geological and Geophysical Studies
- Geological and Geochemical Analysis
- Hydrocarbon exploration and reservoir analysis
- Tree-ring climate responses
- Solar and Space Plasma Dynamics
- Geological formations and processes
- Geochemistry and Elemental Analysis
- Solar Radiation and Photovoltaics
- Atmospheric chemistry and aerosols
- Plant Water Relations and Carbon Dynamics
- Oceanographic and Atmospheric Processes
- Geochemistry and Geologic Mapping
- Pleistocene-Era Hominins and Archaeology
- Geophysics and Gravity Measurements
- Aeolian processes and effects
- Pacific and Southeast Asian Studies
- Atmospheric and Environmental Gas Dynamics
- Astronomy and Astrophysical Research
- Ionosphere and magnetosphere dynamics
- Stellar, planetary, and galactic studies
Peking University
2022-2025
Chinese Academy of Sciences
2006-2025
Institute of Geology and Geophysics
2024-2025
China University of Geosciences (Beijing)
2017-2023
Cytoskeleton (United States)
2018
National Astronomical Observatories
2006
The Phanerozoic Eon has witnessed considerable changes in the climate system as well abundant animals and plant life. Therefore, evolution of this is worthy extensive research. Only by studying past can we understand driving mechanisms for future make reliable projections. Apart from observational paleoclimate proxy datasets, simulations provide an alternative approach to investigate conditions Earth, especially long time span deep past. Here perform 55 snapshot 540 million years, with a...
The dust cycle in three typical time periods of the past 250 Myr, namely 240 Ma, 130 Ma and 80 is studied using climate model CESM1.2.2 combined with vegetation BIOME4 compared that present day. atmospheric loading obtained for these 35.9, 9.7 3.2 Tg, respectively. In comparison, present-day ∼24 Tg. It found area subtropical land major controlling factor variation loading; plant evolution play a relatively minor role experiments where continental ice sheets are not considered reliability...
Coals and evaporites are commonly used as qualitative indicators of wet dry environments in deep-time climate studies, respectively. Here, we combine geological records with simulations to establish quantitative relationships coals temperature precipitation over the Phanerozoic. We show that coal were associated a median 25°C 1300 mm yr-1 before 250 Ma. Afterwards, appeared temperatures between 0°C 21°C 900 yr-1. Evaporite 27°C 800 The most remarkable result is net evaporite remained...
Abstract In the geological past, terrestrial aridity had critical influences on evolution of life and ecosystems. Here, we combine climate simulations records to investigate since Pangea. Throughout this epoch, tectonics led breakup reassembly landmasses, alongside climatic oscillations between hothouse icehouse conditions. Our findings reveal a dynamic landscape dryland coverage, encompassing approximately 56% global land during Pangea, diminishing about 32% in Cretaceous, subsequently...
The bauxite is a critical paleoclimatic proxy, and it also the main material for refining aluminum. Therefore, of great scientific, economic strategic significance to study mineralization bauxites. formation bauxites largely affected by intense chemical weathering, closely related temperature, precipitation vegetation cover. In studies, are used qualitatively indicate warm, humid vegetated environmental conditions, but how in deep time were quantitatively temperature has not been...
Abstract Earth's hydrological cycle has undergone significant change during geological periods. While it is known that the global‐mean surface temperature (GMST) first‐order controlling factor, there are other factors less studied. We performed paleoclimate simulations to examine evolution of precipitation (GMP) from 540 million years ago today. The GMP primarily varies with GMST, however, in low‐latitude land fraction also important. An increase can directly reduce by reducing latent heat...
Shifts in the position of intertropical convergence zone (ITCZ) have great importance for weather, climate, and society. The ITCZ shifts been extensively studied current future warmer climate; however, little is known its migration past on geological time scales. Using an ensemble climate simulations over 540 million years, we show that migrations are controlled primarily by continental configuration through two competing pathways: hemispheric radiation asymmetry cross-equatorial ocean heat...
Length of day (LOD) varies throughout Earth history, dictated in the long term by retreat Moon and growth Earth's core. Reconstruction LOD deep time has greatly benefited from analyses orbital cycle geological records. The Precambrian database, however, is very limited. Here we present a cyclostratigraphic study on c. 1.1 Ga laminated argillaceous limestones Nanfen Formation North China craton. Milankovitch cycles are successfully recognized consistent cyclical variations high-resolution...
Abstract Auroras observed at middle and low geographic latitudes are related to external inputs varying geomagnetic fields. This work aims exclude corotating interaction region (CIR) storms identify strong coronal mass ejection (CME) according historical auroral records when the field varies substantially. An existing catalog of aurora in Chinese history reported by Zeng & Jin from 193 B.C. 1911 A.D. is used. Archaeomagnetic models adopted estimate variation dipole field. According...
The global meridional overturning circulation (GMOC) is important for redistributing heat and, thus, determining climate, but what determines its strength over Earth's history remains unclear. On the basis of two sets climate simulations Paleozoic characterized by a stable GMOC direction, our research reveals that primarily depends on continental configuration while variations have minor impact. In mid- to high latitudes, volume continents largely dictates speed westerly winds, which in turn...
Abstract Full-vector magnetograms and Dopplergrams of selected areas the solar photosphere are used to compute vertical component right-hand side vector induction equation. We attempt find a criterion for action convective mechanism amplification structuring magnetic fields using distributions this quantity magnetic-field component.
<p>In this study, we investigate the meridional temperature gradients during past 250 million years. We compare differences between proxy data of oxygen isotopes and lithologic indicators globally coupled atmosphere-ocean climate system model simulation results. Two models are employed, CESM1.2.2 HadleyCM3. There several significant results Scotese’s reconstruction data: 1) tropical surface temperatures usually higher in simulations than both (Scotese 2016;...
<p>Coals and evaporates are the most commonly used paleoclimate indicators, regarded as representatives of humid arid climate conditions in geological record, respectively. However, quantitative systematic significance coals Earth history still unknown. Here, we perform a series of simulations to simulate global Phanerozoic, using an system model CESM 1.2.2 reconstructed paleotopographies (Scotese, 2018). Combining with...