Triple oxygen isotope (∆17O with δ18O) signals of H2O and O2 found in sulfate oxidative weathering origin offer promising constraints on modern ancient weathering, hydrology, atmospheric gas concentrations, bioproductivity. However, interpretations the sulfate-water-O2 system rely assuming fixed oxygen-isotope fractionations between water, which, contrastingly, are shown to vary widely sign amp...

Papers published in Hydrology and Earth System Sciences Discussions are under open-access review for the journal Hydrology and Earth System Sciences Abstract Dripwater hydrology and hydrogeochemistry is particularly useful to constrain the meaning of speleothem palaeoclimate archives, for example using δ 18 O signatures. Here, we calibrate the relationship between δ 18 O in precipitation, perco...

Triple oxygen isotope (∆17O with δ18O) signals of H2O and O2 found in sulfate oxidative weathering origin offer promising constraints on modern ancient weathering, hydrology, atmospheric gas concentrations, bioproductivity. However, interpretations the sulfate-water-O2 system rely assuming fixed oxygen-isotope fractionations between water, which, contrastingly, are shown to vary widely sign amp...

[1] Global measurements of the 500–825 hPa layer mean HDO/H2O ratio from the Tropospheric Emission Spectrometer (TES) are used to expose differences in the dominant hydrologic processes in the Amazon, north Australian, and Asian monsoon regions. The data show high regional isotopic variability and numerous values unexpected from classical Rayleigh theory. Correlation analysis shows that mixing ...

A detailed reconstruction of West African monsoon hydrology over the past 155,000 years suggests a close linkage to northern high-latitude climate oscillations. Ba/Ca ratio and oxygen isotope composition of planktonic foraminifera in a marine sediment core from the Gulf of Guinea, in the eastern equatorial Atlantic (EEA), reveal centennial-scale variations of riverine freshwater input that are ...

and diffusive transport). Developing tractable analytical equations for these processes requires simplifying asNumerical simulations of transport and isotope fractionation prosumptions, which lead to analytical methods that are not vide a method to quantitatively interpret vadose zone pore water stable isotope depth profiles based on soil properties, climatic condieasily adapted to field condit...

The travertine deposit springs are located on the southeast of the Damavand Volcano, 85 km northeast of Tehran Province. The deposits of these springs mainly outcropped with cascade, hill, conical, layered, calcareous Tufa and Fissure-Ridges morphologies. Travertine studies have usually been conducted based on field observations, geochemistry and hydrology. The tectonic activity of the region, ...

Water movement in upland humid watersheds from the soil surface to the stream is often described using the concept of translatory flow1,2, which assumes that water entering the soil as precipitation displaces the water that was present previously, pushing it deeper into the soil and eventually into the stream2. Within this framework, water at any soil depth is well mixed and plants extract the ...