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Alexis Lamothe, Pete D. Akers, Patrick Ginot, Sarah Albertin et autres
Dataset to interpret the δ15N(NH4+) in a Mont Blanc ice core. The document includes high resolution measurements and decadal averages of the CDD16 ice core. High-resolution measurements are in depth (m) or age (a CE). Decadal averages are mass weighted means. The …
fr, ie, ch (code pays fourni par la source)
Alexis Lamothe, Pete D. Akers, Patrick Ginot, Sarah Albertin et autres
Dataset to interpret the δ15N(NH4+) in a Mont Blanc ice core. The document includes high resolution measurements and decadal averages of the CDD16 ice core. High-resolution measurements are in depth (m) or age (a CE). Decadal averages are mass weighted means. The …
fr, ie, ch (code pays fourni par la source)
Jack M. Saville, Julien Witwicky, Elsa Gautier, Alexis Lamothe et autres
Abstract Traditional isotope ratio mass spectrometers are not optimally designed to analyze nonvolatile molecular solutes such as oxyanions or organics. Necessary sample conversion steps, often demanding micromole-scale samples, break chemical bonds and limit oxyanion analyses to elemental isotope ratios. Recent studies enthusiastically …
fr, cn, de, us, gb (code pays fourni par la source)
Filip Pastierovic, Roberto Grilli, Nicolas Caillon, Joël Savarino
In this work we report a compact, low-cost instrument based on Open Path – Incoherent BroadBand Cavity Enhanced Absorption Spectroscopy (OP-IBBCEAS) at 445 nm for the detection of iodine oxide (IO), nitrogen oxide (NO 2 ) and glyoxal (CHOCHO) in the atmosphere. …
fr, sk (code pays fourni par la source)
Jack Saville, Julien Witwicky, Diyanath Attonde, Jiaran Zheng et autres
In the face of natural and anthropogenic emissions, the habitability of Earth’s atmosphere is maintained thanks to atmospheric oxidants – photochemically produced reactive species which destroy toxic pollutants, remove greenhouse gases and maintain chemical stability. Understanding the chemical dynamics of the atmosphere …
fr, cn (code pays fourni par la source)
Kathleen A. Alden, Jack Saville, Julien Witwicky, Nicolas Caillon et autres
Atmospheric nitrate, comprising particulate NO3- and gas-phase nitric acid (HNO3), is a highly significant product of the oxidation of NOx (= NO + NO2). Its isotopic composition (Δ17O, δ18O and δ15N) provides valuable information on NOx sources and atmospheric oxidation pathways, making …
fr (code pays fourni par la source)
Thierry Pellarin, Nicolas Gratiot, Nicolas Champollion, Charles Amory et autres
Five years ago, in 2020, 250 staff of a research laboratory in Grenoble, France signed a commitment to reduce their laboratory's greenhouse gas (GHG) emissions by 50% from 2019 to 2030, while continuing to carry out research on climate, the water cycle, …
fr, gb (code pays fourni par la source)
Tao Zhou, Sarah Albertin, Zhuang Jiang, Joël Savarino et autres
The oxygen-17 isotope anomaly (Δ 17 O) serves as a powerful tool to elucidate the chemical transformation mechanisms of atmospheric reactive nitrogen species such as NO 2 and HONO. Current studies employ denuder collection methods to convert atmospheric NO 2 and HONO …
cn, fr, us (code pays fourni par la source)
Alexis Lamothe, Pete D. Akers, Sarah Albertin, Patrick Ginot et autres
Abstract Nitrogen stable isotopes ( δ 15 N) of ice core nitrate (NO 3 − ) are often subject to diverse interpretations associated with changes in nitrogen oxide (NO x ) sourcing, atmospheric reactions, and/or post‐depositional processes. Here, an ice core from …
fr, ie, us, ch, jp, cn (code pays fourni par la source)
Jack Saville, Julien Witwicky, Elsa Gautier, Alexis Lamothe et autres
Traditional gas-source, sector-field isotope ratio mass spectrometers are not optimally designed to analyse non-volatile molecular solutes such as oxyanions or organics. Tedious preparation steps – often requiring micromole-scale samples – break chemical bonds, meaning only elemental isotope ratios can be extracted. Recent …
fr, de, us, gb (code pays fourni par la source)
Filip Pastierovic, Roberto Grilli, Nicolas Caillon, Joël Savarino
Abstract. In this work we report a compact, low-cost instrument based on Open Path– Incoherent BroadBand Cavity Enhanced Absorption Spectroscopy (OP-IBBCEAS) at 445 nm for the detection of iodine oxide (IO), nitrogen oxide (NO2) and glyoxal (CHOCHO) in the atmosphere. We provide …
fr, sk (code pays fourni par la source)
Cyril Aumar, Hélène Celle‐Jeanton, Mélanie Quenet, Olivier Voldoire et autres
The continental hydrosystems of wetlands play fundamental socio-economic and environmental roles in all aquatic environments. These ecosystems, when located at the interface between surface and groundwater, such as oxbows, are of crucial importance in regulating water and nutrient flows. They help control …
fr (code pays fourni par la source)
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