143 Result(s)
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Article
Sequence stratigraphic analysis of superimposed coal measure gas-bearing system in Daning-Jixian block, eastern margin of Ordos Basin, China
The identification of superimposed gas-bearing systems in coal measures is the basis for expediting the optimization of coal measure gas co-production. Through the analysis of drill cores and log data of Upper...
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Temporal and Spatial Changes and Driving Forces of Carbon Stocks and Net Ecosystem Productivity: A Case Study of Zoige County, Sichuan Province, China
This study analysed the spatiotemporal changes in carbon stocks and Net Ecosystem Productivity (NEP) in Zoige County, Upper Yellow River, from 2000 to 2020 in response to China’s ecological civilization ideolo...
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Paleoclimatic application of spectral parameters to the eolian red clay of the Jianzha Basin, northeastern margin of the Tibetan Plateau
Reflectance spectroscopy is rapid, inexpensive, and non-destructive and can provide important information about the mineralogy of rocks and sediments. We measured the reflectance spectroscopy of Miocene red cl...
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The relationship between interannual dry/wet changes and nomadic wars in the Hexi Corridor region of China during the period 241–1912 A.D.
The link between climate and war has long been a topic of great scientific and social interest. In this study, we investigate the influence of climate on warfare in China’s Hexi Corridor region since 241 A.D. ...
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Open AccessUnexpected HCHO transnational transport: influence on the temporal and spatial distribution of HCHO in Tibet from 2013 to 2021 based on satellite
Formaldehyde (HCHO) is a serious hazardous air pollutant and crucial precursor of PM2.5 and ozone compound pollution. There has been a dearth of HCHO research in Tibet where pressing need to protect the unique ec...
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Article
Open AccessThe formation of the granite complex in the Wuhe Mari area of Bayankala Mountain on the northeastern margin of the Tibetan Plateau: constraints from lithogeochemistry and U–Pb zircon dating
The granite complex in the Wuhe Mari area lies in the tectonic magma belt of the North Bayankala Mountains on the northeastern edge of the Qinghai-Tibet Plateau. It is located in the middle of the first member...
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Article
Numerical simulation of flow field deposition and erosion characteristics around bridge-road transition section
Wind-sand flow generates erosion and deposition around obstacles such as bridges and roadbeds, resulting in sand damage and endangering railway systems in sandy regions. Previous studies have mainly focused on...
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Article
Cretaceous integrative stratigraphy, biotas, and paleogeographical evolution of the Qinghai-Tibetan Plateau and its surrounding areas
The Cretaceous Period is a vital time interval in deciphering the evolutionary history of the Neo-Tethys Ocean and the convergence of different plates and blocks across the Qinghai-Tibetan Plateau. A detailed ...
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Article
Counteracting effects on ENSO induced by ocean chlorophyll interannual variability and tropical instability wave-scale perturbations in the tropical Pacific
Large perturbations in chlorophyll (Chl) are observed to coexist at interannual and tropical instability wave (TIW) scales in the tropical Pacific; at present, their combined effects on El Niño-Southern Oscill...
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Article
Dynamic Effect of Landslides Triggered by Earthquake: A Case Study in Moxi Town of Luding County, China
The dynamic effect is a very important issue widely debated by scholars when studying the genetic and disaster-causing mechanisms of earthquake-triggered landslides. First, the dynamic effect mechanism and phe...
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Article
Ultra-short-term wind speed prediction based on empirical wavelet transform and combined model
Due to the variability, proneness to outside influences, and constantly fluctuating nature of ultra-short-term wind speed sequences, wind speed forecasts in wind farms are not precise. A method to predict ultr...
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Article
Open AccessEstimating hourly surface shortwave radiation over northeast of the Tibetan Plateau by assimilating Himawari-8 cloud optical thickness
To reduce the uncertainty estimation of clouds and improve the forecast of surface shortwave radiation (SSR) over the Tibetan Plateau, a new cloud assimilation system is proposed which is the first attempt to ...
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Article
Phanerozoic oceanic and climatic perturbations in the context of Tethyan evolution
Climatic and environmental conditions play a pivotal role in the evolution of the biosphere, serving as the primary natural factors influencing biological evolution and the development of human civilization. T...
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Orogenic Gold Deposits: Mineralization Mechanism and Research Perspectives
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Article
Complementarity of lacustrine pollen and sedimentary DNA in representing vegetation on the central-eastern Tibetan Plateau
Plant environmental DNA extracted from lacustrine sediments (sedimentary DNA, sedDNA) has been increasingly used to investigate past vegetation changes and human impacts at a high taxonomic resolution. However...
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Article
Pollution assessment and source apportionment of heavy metal(loid)s in soil of Huangshui River basin, Qinghai Province, China
This study analyzed the contents of Cd, Co, Cr, Cu, Ni, Pb, Zn, Hg and As in 39 surface soil samples in the lower reaches of Huangshui River basin. The results showed that the proportions of Cd, Co and Cr exce...
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Article
Open AccessMillennial atmospheric CO2 changes linked to ocean ventilation modes over past 150,000 years
Ice core measurements show diverse atmospheric CO2 variations—increasing, decreasing or remaining stable—during millennial-scale North Atlantic cold periods called stadials. The reasons for these contrasting tren...
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Article
Quality assessment of the ionospheric density profiles based on long-term COSMIC 1 and 2 radio occultation observations
The ionosphere is a part of the Earth’s atmosphere with complex temporal and spatial distribution and variation. Radio occultation can obtain the vertical distribution of ionosphere, effectively making up for ...
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Open AccessSubstantial increase in future fluvial flood risk projected in China’s major urban agglomerations
Urban land will face high fluvial flood risk against the background of climate change and urban expansion. The effect of urban spatial expansion, instead of densification of assets within existing urban cells,...
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Article
Ontology-Based BERT Model for Automated Information Extraction from Geological Hazard Reports
Geological knowledge can provide support for knowledge discovery, knowledge inference and mineralization predictions of geological big data. Entity identification and relationship extraction from geological da...
