Izvestiya Atmospheric and Oceanic Physics, Journal Year: 2024, Volume and Issue: 60(S2), P. S185 - S201
Published: Dec. 1, 2024
Language: Английский
Geochimica et Cosmochimica Acta, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 1, 2024
Language: Английский
Citations
1
Earth and Planetary Science Letters, Journal Year: 2023, Volume and Issue: 621, P. 118366 - 118366
Published: Sept. 11, 2023
Language: Английский
Citations
3
Communications Earth & Environment, Journal Year: 2024, Volume and Issue: 5(1)
Published: April 9, 2024
Abstract The isotopic composition has long been used to investigate the factors influencing precipitation, whereas variations of event-based precipitation isotopes caused by moisture transition and synoptic meteorological conditions remain limited. Here we present triple oxygen hydrogen in during West China Autumn Precipitation evaluate influence various sources hydrological process. Isotopes δ 18 O, 17 δD peak with convective at onset stage, then drop their lowest amid stratiform middle rise again towards end. In contrast, Δ′ O levels elevated throughout mid-stage compared end stages. These variations, coupled analysis, reveal a distinct source from Pacific Ocean westerly domain accompanied retreat Asian summer monsoon Northwest China.
Language: Английский
Citations
0
Chemical Geology, Journal Year: 2024, Volume and Issue: 661, P. 122193 - 122193
Published: May 28, 2024
Triple oxygen isotope compositions of authigenic minerals are an emerging tool for the reconstruction fluid temperatures and isotopic composition. In this study, we analyzed euhedral quartz crystals from a halite deposit Upper Permian Zechstein evaporitic basin their triple composition using laser fluorination ratio mass spectrometry. space, additional information, such as ambient water, provides insights into equilibrium conditions during formation that cannot be identified δ18O alone. The shows, single (δ18O) thermometry is not applicable samples environments, where fluids' deviates dynamic equilibrium. By combining Craig Gordon evaporation model with H2O – SiO2 fractionation, reconstruct temperature marine-derived saline brine pore in quartz. We obtain 90 to 130 °C interpreted crystallization microcrystalline burial diagenesis. environments suited geochemical tracer ancient or diagenetic temperatures.
Language: Английский
Citations
0
Journal Ice and Snow, Journal Year: 2024, Volume and Issue: 64(1), P. 5 - 24
Published: July 16, 2024
Modeling the isotopic composition of atmospheric precipitation is an important tool for climatic, paleoclimatic and hydrological studies. This paper presents improved simple model in Central Antarctica. It differs from previous version published by Salamatin et al. (2004) 1) included geochemical cycle oxygen 17 2) possibility solving inverse problem (i.e., finding trajectory parameters that could form observed at end trajectory). The examines detail main tuning model, among which most are temperature humidity moisture source, “circulation parameter”, takes into account advection vapor condensation degree air supersaturation with ice clouds. Based on analysis data (including “excess 17”, 17O-xs) water surface layer atmosphere over ocean snow sampled along meridional profiles East Antarctica, optimal calculating Antarctic Vostok station was performed. In particular, it shown source +17.4°C 72%, respectively, –41.3°C. possibilities using to analyze liquid falling other continents discussed. final part discusses limitations model. noted does not take such processes as evaporation when falls arid conditions, mixing trajectories, influence local sources moisture, well features isotope fractionation during continents.
Language: Английский
Citations
0
Journal of Geophysical Research Atmospheres, Journal Year: 2024, Volume and Issue: 129(17)
Published: Aug. 26, 2024
Abstract Precipitation δ 18 O has offered valuable insights into the evolution of Asian monsoon. Recent researches focusing on precipitation Δ′ 17 enhanced our understanding by offering new perspectives beyond those O, revealing vapor sources and continental recycling. Nevertheless, there remains a lack interannual triple oxygen isotope data, particularly in monsoon region. In this study, we analyzed isotopes hydrogen monthly samples collected from Chongqing Southwest China between 2019 2022 A.D. Seasonal variations δD, d‐excess values were observed, with lower during rainy season higher dry season, highlighting impact changes moisture local meteorological conditions seasonal shifts O. While, mean season. Notably, is negative correlation RH source area, as well positive . Recalculated based oceanic source, are than measured for period, indicating contribution terrigenous to SW China. provide more precise reflection recycling, evapotranspiration processes that drive water cycling compared Integrating modeling works future will facilitate use quantify different precipitation.
Language: Английский
Citations
0
Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 553 - 576
Published: Aug. 29, 2024
Language: Английский
Citations
0
Journal of Water Resources and Ocean Science, Journal Year: 2024, Volume and Issue: 13(4), P. 105 - 115
Published: Oct. 31, 2024
The aim of this study was to gain a better understanding the functioning aquifer system and springs in Pala basin through hydrochemical isotopic analyses. Thirteen samples were analyzed, including two rainwater samples, three spring eight borehole samples. stable composition (<sup>2</sup>H <sup>18</sup>O) shows that it is virtually unaffected by evaporation as falls. Groundwater d-excess values are high, with an average 11.28 ‰, all have higher than local rainfall 7.99 ‰. This result suggests direct infiltration precipitation oceanic slightly continental origin, favourable geological context. there different recharge periods: cold, wet period depletion <sup>18</sup>O current period. Around E2, oldest tritium content 1.8 TU, took place during cold other waters mixing from observed area come Sotouba sandstone aquifers after erosion exposed piezometric water level Kou basin, hence their origin. Most boreholes tap both formations, which makes difficult distinguish these analysis.
Language: Английский
Citations
0
Chemical Geology, Journal Year: 2024, Volume and Issue: 671, P. 122484 - 122484
Published: Nov. 12, 2024
Language: Английский
Citations
0
SCIENTIA SINICA Terrae, Journal Year: 2024, Volume and Issue: 54(12), P. 3832 - 3859
Published: Nov. 13, 2024
Citations
0