Results 81 to 90 of about 4,709 (174)

Seasonal and spatial variation in the stable isotopic composition (δ18O and δD) of precipitation in south Florida [PDF]

, 2008
Precipitation data collected from five sites in south Florida indicate a strong seasonal and spatial variation in δ18O and δD, despite the relatively limited geographic coverage and low-lying elevation of each of the collection sites.
Price, René M., Swart, Peter K., Willoughby, Hugh E.   +2 more
core   +1 more source

Global Precipitation d‐excess Dataset: A Critical Resource for Geographical Science Research

Geoscience Data Journal, Volume 13, Issue 1, January 2026.
This study builds d‐excess datasets using 98,423 stable isotope records, identifies significant variations in d‐excess across different climate types and time scales, and advances the application of iGCMs in geographical research. ABSTRACT As an indicator associated with dynamic non‐equilibrium fractionation and less affected by equilibrium ...
Baijun Shang, Guofeng Zhu, Tong Li, Hui Gao, Feng Wang, Zhibin Zhou, Tonggang Fu   +6 more
wiley   +1 more source

The potential of gypsum speleothems for paleoclimatology: application to the Iberian Roman Humid Period

Scientific Reports, 2020
Carbonate cave deposits (speleothems) have been used widely for paleoclimate reconstructions; however, few studies have examined the utility of other speleothem-forming minerals for this purpose.
Fernando Gázquez, Thomas K. Bauska, Laia Comas-Bru, Bassam Ghaleb, José-María Calaforra, David A. Hodell   +5 more
doaj   +1 more source

Permafrost hydrology in changing climatic conditions: seasonal variability of stable isotope composition in rivers in discontinuous permafrost [PDF]

, 2015
Role of changing climatic conditions on permafrost degradation and hydrology was investigated in the transition zone between the tundra and forest ecotones at the boundary of continuous and discontinuous permafrost of the lower Yenisei River.
Nyland, Kelsey E., Opel, Thomas, Shiklomanov, Alexander I., Shiklomanov, Nikolay I., Streletskaya, Irina D., Streletskiy, Dmitry A., Tananaev, Nikita I., Tokarev, Igor   +7 more
core   +1 more source

Terrestrial exposure of a fresh Martian meteorite causes rapid changes in hydrogen isotopes and water concentrations [PDF]

, 2018
Determining the hydrogen isotopic compositions and H2O contents of meteorites and their components is important for addressing key cosmochemical questions about the abundance and source(s) of water in planetary bodies.
A Al-Kathiri, A Stephant, AE Saal, AR Sarafian, C Aubaud, C Engrand, CMO’D Alexander, DR Bell, E Hauri, E Pendall, G Boato, HC Aoudjehane, IP Baziotis, JJ Barnes, JL Gooding, JP Greenwood, LA Leshin, LAJ Garvie, LJ Hallis, LJ Hallis, LJ Hallis, LJ Hallis, LL Watson, MR Lee, N Sugiura, NZ Boctor, P Mane, R Tartèse, RD Ash, T Usui, ZD Sharp   +30 more
core   +1 more source

Deep Water Renewal in the Amerasian Basin Derived From Natural and Anthropogenic Tracer Data Sets

Journal of Geophysical Research: Oceans, Volume 131, Issue 1, January 2026.
Abstract The deep waters of the Amerasian Basin in the Arctic Ocean are among the most isolated in the modern Arctic Mediterranean Sea (e.g., Schlosser et al., 1997, https://doi.org/10.1016/s0168‐583x(96)00677‐5). In this study, we use a suite of tracers spanning a range of timescales—including chlorofluorocarbons (CFCs), SF6, radiocarbon (14C), and ...
A. Pasqualini, W. M. Smethie Jr., Robert Newton, P. Schlosser   +3 more
wiley   +1 more source

Contrasting intrainterstadial climatic evolution between high and middle North Atlantic latitudes: A close-up of Greenland Interstadials 8 and 12 [PDF]

, 2016
Three highly resolved pollen and sea surface temperature records from the Iberian margin (36â "42°N) reveal the local evolution of vegetation and climate associated with the rapid climatic variability of marine isotope stage 3.
Cacho Lascorz, Isabel, Duprat, Josette, Landais, A., Rossignol, L., Sanchez Goñi, M.F.   +4 more
core   +1 more source

Short‐Term Effect of Mars‐Like Radiation on Carbon and Oxygen Isotope Compositions of Carbonates

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract The stable isotope composition of carbonates records the environmental formation conditions and can indicate potential biosignatures if formed biologically. Martian meteorite carbonates display unusually high δ13C values, not explained using known terrestrial processes.
Nicolas Randazzo, Sang‐Tae Kim, Fabien Stalport, Maikel C. Rheinstäder, Hervé Cottin, Patrice Coll   +5 more
wiley   +1 more source

Hydroclimatic controls on lake water oxygen isotope in alpine lake on the northern Tibetan Plateau: Insights from isotope mass balance modeling

Journal of Hydrology: Regional Studies
Study region: Bangkog Lake, a representative alpine lake on the northern Tibetan Plateau (TP).Study focus: This study investigates the controls on alpine lake water δ18O variability through monthly monitoring of stable isotopes (δ18O and δD) and ...
Yongjie Lin, Mianping Zheng, Chuanyong Ye   +2 more
doaj   +1 more source

Water stable isotopes in the Yarlungzangbo headwater region and its vicinity of the southwestern Tibetan Plateau

Tellus: Series B, Chemical and Physical Meteorology, 2016
Various types of water samples across the Yarlungzangbo headwater region and its vicinity of the southwestern Tibetan Plateau were collected in summer 2012 for isotopic analysis to augment our specific understanding of regional hydroclimate. In the upper
Wei Ren, Tandong Yao, Shiyou Xie
doaj   +1 more source