Articles | Volume 11, issue 4
Atmos. Meas. Tech., 11, 2159–2171, 2018
https://doi.org/10.5194/amt-11-2159-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Atmos. Meas. Tech., 11, 2159–2171, 2018
https://doi.org/10.5194/amt-11-2159-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article 16 Apr 2018
Research article | 16 Apr 2018
The water vapour self-continuum absorption in the infrared atmospheric windows: new laser measurements near 3.3 and 2.0 µm
Loic Lechevallier et al.
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Loic Lechevallier, Roberto Grilli, Erik Kerstel, Daniele Romanini, and Jérôme Chappellaz
Atmos. Meas. Tech., 12, 3101–3109, https://doi.org/10.5194/amt-12-3101-2019, https://doi.org/10.5194/amt-12-3101-2019, 2019
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In this work we describe a highly sensitive optical spectrometer for simultaneous measurement of methane, ethane, and the isotopic composition of methane. The coupling of the spectrometer with a dissolved gas extraction system will provide a suitable tool for understanding the origins of the dissolved hydrocarbons and discriminate between the different sources (e.g., biogenic vs. thermogenic).
Albane Barbero, Camille Blouzon, Joël Savarino, Nicolas Caillon, Aurélien Dommergue, and Roberto Grilli
Atmos. Meas. Tech., 13, 4317–4331, https://doi.org/10.5194/amt-13-4317-2020, https://doi.org/10.5194/amt-13-4317-2020, 2020
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In this paper, we present a compact, affordable and robust instrument for in situ measurements of different trace gases: NOx, IO, CHOCHO and O3 with very low detection limits. The device weighs 15 kg and has a total electrical power consumption of < 300 W. Its very low detection limits and its design make it suitable for field applications to address different questions such as how to better constrain the oxidative capacity of the atmosphere and study the chemistry of highly reactive species.
Roberto Grilli, François Darchambeau, Jérôme Chappellaz, Ange Mugisha, Jack Triest, and Augusta Umutoni
Geosci. Instrum. Method. Data Syst., 9, 141–151, https://doi.org/10.5194/gi-9-141-2020, https://doi.org/10.5194/gi-9-141-2020, 2020
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We report the results from the deployment of a newly developed in situ sensor for dissolved gas measurements. Its adaptation to high gas concentrations and dissolved gas pressures was proven. The campaign leads to a first continuous profile of methane on the first 150 m and allowed us to compare the data with previous measurements. The fast response of the instrument makes this technique a good candidate for regular monitoring of those type of lakes, for anticipating disastrous gas eruptions.
Pär Jansson, Jack Triest, Roberto Grilli, Bénédicte Ferré, Anna Silyakova, Jürgen Mienert, and Jérôme Chappellaz
Ocean Sci., 15, 1055–1069, https://doi.org/10.5194/os-15-1055-2019, https://doi.org/10.5194/os-15-1055-2019, 2019
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Methane seepage from the seafloor west of Svalbard was investigated with a fast-response membrane inlet laser spectrometer. The acquired data were in good agreement with traditional sparse discrete water sampling, subsequent gas chromatography, and with a new 2-D model based on echo-sounder data. However, the acquired high-resolution data revealed unprecedented details of the methane distribution, which highlights the need for high-resolution measurements for future climate studies.
Loic Lechevallier, Roberto Grilli, Erik Kerstel, Daniele Romanini, and Jérôme Chappellaz
Atmos. Meas. Tech., 12, 3101–3109, https://doi.org/10.5194/amt-12-3101-2019, https://doi.org/10.5194/amt-12-3101-2019, 2019
Short summary
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In this work we describe a highly sensitive optical spectrometer for simultaneous measurement of methane, ethane, and the isotopic composition of methane. The coupling of the spectrometer with a dissolved gas extraction system will provide a suitable tool for understanding the origins of the dissolved hydrocarbons and discriminate between the different sources (e.g., biogenic vs. thermogenic).
Related subject area
Subject: Gases | Technique: Laboratory Measurement | Topic: Validation and Intercomparisons
Implementation of an incoherent broadband cavity-enhanced absorption spectroscopy technique in an atmospheric simulation chamber for in situ NO3 monitoring: characterization and validation for kinetic studies
A portable, robust, stable, and tunable calibration source for gas-phase nitrous acid (HONO)
Characterising water vapour concentration dependence of commercial cavity ring-down spectrometers for continuous onsite atmospheric water vapour isotope measurements in the tropics
Optimisation of a thermal desorption–gas chromatography–mass spectrometry method for the analysis of monoterpenes, sesquiterpenes and diterpenes
SIFT-MS optimization for atmospheric trace gas measurements at varying humidity
N2O isotopocule measurements using laser spectroscopy: analyzer characterization and intercomparison
An intercomparison of CH3O2 measurements by fluorescence assay by gas expansion and cavity ring-down spectroscopy within HIRAC (Highly Instrumented Reactor for Atmospheric Chemistry)
Photoacoustic measurement with infrared band-pass filters significantly overestimates NH3 emissions from cattle houses due to volatile organic compound (VOC) interferences
Isotopic characterization of nitrogen oxides (NOx), nitrous acid (HONO), and nitrate (pNO3−) from laboratory biomass burning during FIREX
A new laser-based and ultra-portable gas sensor for indoor and outdoor formaldehyde (HCHO) monitoring
Negligible influence of livestock contaminants and sampling system on ammonia measurements with cavity ring-down spectroscopy
Preparation of primary standard mixtures for atmospheric oxygen measurements with less than 1 µmol mol−1 uncertainty for oxygen molar fractions
The interference of tetrachloromethane in the measurement of benzene in the air by a gas chromatography–photoionisation detector (GC-PID)
Evaluation of cation exchange membrane performance under exposure to high Hg0 and HgBr2 concentrations
Gravimetrically prepared carbon dioxide standards in support of atmospheric research
The importance of cylinder passivation for preparation and long-term stability of multicomponent monoterpene primary reference materials
Dynamic–gravimetric preparation of metrologically traceable primary calibration standards for halogenated greenhouse gases
Interlaboratory comparison of δ13C and δD measurements of atmospheric CH4 for combined use of data sets from different laboratories
Absolute, pressure-dependent validation of a calibration-free, airborne laser hygrometer transfer standard (SEALDH-II) from 5 to 1200 ppmv using a metrological humidity generator
An intercomparison of HO2 measurements by fluorescence assay by gas expansion and cavity ring-down spectroscopy within HIRAC (Highly Instrumented Reactor for Atmospheric Chemistry)
Abundances of isotopologues and calibration of CO2 greenhouse gas measurements
Intercomparison of two cavity ring-down spectroscopy analyzers for atmospheric 13CO2 ∕ 12CO2 measurement
Development and evaluation of a suite of isotope reference gases for methane in air
MIPAS database: new HNO3 line parameters at 7.6 µm validated with MIPAS satellite measurements
Challenges associated with the sampling and analysis of organosulfur compounds in air using real-time PTR-ToF-MS and offline GC-FID
Twin-cuvette measurement technique for investigation of dry deposition of O3 and PAN to plant leaves under controlled humidity conditions
Gas adsorption and desorption effects on cylinders and their importance for long-term gas records
HOx radical chemistry in oxidation flow reactors with low-pressure mercury lamps systematically examined by modeling
ACTRIS non-methane hydrocarbon intercomparison experiment in Europe to support WMO GAW and EMEP observation networks
A method for stable carbon isotope ratio and concentration measurements of ambient aromatic hydrocarbons
Instrument intercomparison of glyoxal, methyl glyoxal and NO2 under simulated atmospheric conditions
Measuring acetic and formic acid by proton-transfer-reaction mass spectrometry: sensitivity, humidity dependence, and quantifying interferences
Accurate measurements of ozone absorption cross-sections in the Hartley band
Pressure-dependent calibration of the OH and HO2 channels of a FAGE HOx instrument using the Highly Instrumented Reactor for Atmospheric Chemistry (HIRAC)
Quantitative infrared absorption cross sections of isoprene for atmospheric measurements
The AquaVIT-1 intercomparison of atmospheric water vapor measurement techniques
Characterization and mitigation of water vapor effects in the measurement of ozone by chemiluminescence with nitric oxide
Results from the International Halocarbons in Air Comparison Experiment (IHALACE)
A smog chamber comparison of a microfluidic derivatisation measurement of gas-phase glyoxal and methylglyoxal with other analytical techniques
High-precision analysis of SF6 at ambient level
Jena Reference Air Set (JRAS): a multi-point scale anchor for isotope measurements of CO2 in air
A combustion setup to precisely reference δ13C and δ2H isotope ratios of pure CH4 to produce isotope reference gases of δ13C-CH4 in synthetic air
Quantification of biogenic volatile organic compounds with a flame ionization detector using the effective carbon number concept
Measuring variations of δ18O and δ2H in atmospheric water vapour using two commercial laser-based spectrometers: an instrument characterisation study
Simultaneous stable isotope analysis of methane and nitrous oxide on ice core samples
A high volume sampling system for isotope determination of volatile halocarbons and hydrocarbons
Calibration of atmospheric hydrogen measurements
Absolute accuracy and sensitivity analysis of OP-FTIR retrievals of CO2, CH4 and CO over concentrations representative of "clean air" and "polluted plumes"
Axel Fouqueau, Manuela Cirtog, Mathieu Cazaunau, Edouard Pangui, Pascal Zapf, Guillaume Siour, Xavier Landsheere, Guillaume Méjean, Daniele Romanini, and Bénédicte Picquet-Varrault
Atmos. Meas. Tech., 13, 6311–6323, https://doi.org/10.5194/amt-13-6311-2020, https://doi.org/10.5194/amt-13-6311-2020, 2020
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An incoherent broadband cavity-enhanced absorption spectroscopy (IBBCEAS) technique has been developed for the in situ monitoring of NO3 radicals in the CSA simulation chamber at LISA. The optical cavity allows a high sensitivity for NO3 detection up to 6 ppt for an integration time of 10 s. The technique is now fully operational and can be used to determine rate constants for fast reactions involving complex volatile organic compounds (with rate constants up to 10−10 cm3 molecule−1 s−1).
Melodie Lao, Leigh R. Crilley, Leyla Salehpoor, Teles C. Furlani, Ilann Bourgeois, J. Andrew Neuman, Andrew W. Rollins, Patrick R. Veres, Rebecca A. Washenfelder, Caroline C. Womack, Cora J. Young, and Trevor C. VandenBoer
Atmos. Meas. Tech., 13, 5873–5890, https://doi.org/10.5194/amt-13-5873-2020, https://doi.org/10.5194/amt-13-5873-2020, 2020
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Nitrous acid (HONO) is a key intermediate in the generation of oxidants and fate of nitrogen oxides in the atmosphere. High-purity calibration sources that produce stable atmospherically relevant levels under field conditions have not been made to date, reducing measurement accuracy. In this study a simple salt-coated tube humidified with water vapor is demonstrated to produce pure stable low levels of HONO, with modifications allowing the generation of higher amounts.
Shujiro Komiya, Fumiyoshi Kondo, Heiko Moossen, Thomas Seifert, Uwe Schultz, Heike Geilmann, David Walter, and Jost V. Lavric
Atmos. Meas. Tech. Discuss., https://doi.org/10.5194/amt-2020-305, https://doi.org/10.5194/amt-2020-305, 2020
Revised manuscript accepted for AMT
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The Amazon basin influences the atmospheric and hydrological cycles on local to global scales. To better understand how, we plan to perform continuous on-site measurements of the stable isotope composition of atmospheric water vapour. For making accurate on-site observations possible, we have investigated the performance of two commercial analysers and determined the best calibration strategy. Well-calibrated, both analysers will allow us to record natural signals in the Amazon rainforest.
Aku Helin, Hannele Hakola, and Heidi Hellén
Atmos. Meas. Tech., 13, 3543–3560, https://doi.org/10.5194/amt-13-3543-2020, https://doi.org/10.5194/amt-13-3543-2020, 2020
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A thermal desorption–gas chromatography–mass spectrometry method following sorbent tube sampling was developed for the determination of terpenes in gas-phase samples. The main focus was on the analysis of diterpenes, which have been limited in study in gas-phase samples. The analytical figures of merit were fit for purpose (e.g. quantitation limits <10 pptv and reproducibility <10 % for terpenes). Diterpenes could be detected and identified in emissions from spruce and pine samples.
Ann-Sophie Lehnert, Thomas Behrendt, Alexander Ruecker, Georg Pohnert, and Susan E. Trumbore
Atmos. Meas. Tech., 13, 3507–3520, https://doi.org/10.5194/amt-13-3507-2020, https://doi.org/10.5194/amt-13-3507-2020, 2020
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Volatile organic compounds (VOCs) like scents can appear and disappear quickly. For example, when a bug starts on a tree, the tree releases VOCs that warn the trees around him. Thus, one needs instruments measuring their concentration in real time and identify which VOC is measured. In our study, we compared two instruments doing that, PTR-MS and SIFT-MS. Both work similarly, but we found that the PTR-MS can measure lower concentrations, but the SIFT-MS can identify VOCs better.
Stephen J. Harris, Jesper Liisberg, Longlong Xia, Jing Wei, Kerstin Zeyer, Longfei Yu, Matti Barthel, Benjamin Wolf, Bryce F. J. Kelly, Dioni I. Cendón, Thomas Blunier, Johan Six, and Joachim Mohn
Atmos. Meas. Tech., 13, 2797–2831, https://doi.org/10.5194/amt-13-2797-2020, https://doi.org/10.5194/amt-13-2797-2020, 2020
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The latest commercial laser spectrometers have the potential to revolutionize N2O isotope analysis. However, to do so, they must be able to produce trustworthy data. Here, we test the performance of widely used laser spectrometers for ambient air applications and identify instrument-specific dependencies on gas matrix and trace gas concentrations. We then provide a calibration workflow to facilitate the operation of these instruments in order to generate reproducible and accurate data.
Lavinia Onel, Alexander Brennan, Michele Gianella, James Hooper, Nicole Ng, Gus Hancock, Lisa Whalley, Paul W. Seakins, Grant A. D. Ritchie, and Dwayne E. Heard
Atmos. Meas. Tech., 13, 2441–2456, https://doi.org/10.5194/amt-13-2441-2020, https://doi.org/10.5194/amt-13-2441-2020, 2020
Dezhao Liu, Li Rong, Jesper Kamp, Xianwang Kong, Anders Peter S. Adamsen, Albarune Chowdhury, and Anders Feilberg
Atmos. Meas. Tech., 13, 259–272, https://doi.org/10.5194/amt-13-259-2020, https://doi.org/10.5194/amt-13-259-2020, 2020
Jiajue Chai, David J. Miller, Eric Scheuer, Jack Dibb, Vanessa Selimovic, Robert Yokelson, Kyle J. Zarzana, Steven S. Brown, Abigail R. Koss, Carsten Warneke, and Meredith Hastings
Atmos. Meas. Tech., 12, 6303–6317, https://doi.org/10.5194/amt-12-6303-2019, https://doi.org/10.5194/amt-12-6303-2019, 2019
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Isotopic analysis offers a potential tool to distinguish between sources and interpret transformation pathways of atmospheric species. We applied recently developed techniques in our lab to characterize the isotopic composition of reactive nitrogen species (NOx, HONO, HNO3, pNO3-) in fresh biomass burning emissions. Intercomparison with other techniques confirms the suitability of our methods, allowing for future applications of our techniques in a variety of environments.
Joshua D. Shutter, Norton T. Allen, Thomas F. Hanisco, Glenn M. Wolfe, Jason M. St. Clair, and Frank N. Keutsch
Atmos. Meas. Tech., 12, 6079–6089, https://doi.org/10.5194/amt-12-6079-2019, https://doi.org/10.5194/amt-12-6079-2019, 2019
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A new mid-infrared and ultra-portable formaldehyde (HCHO) sensor from Aeris Technologies is characterized and evaluated against well-established laser-induced fluorescence (LIF) instrumentation. The Aeris sensor displays linear behavior (R squared > 0.94) and shows good agreement with LIF instruments. While the compact sensor is not currently a replacement for the most sensitive research-grade instrumentation available, its sub-ppbv precision is sufficient for indoor and outdoor HCHO monitoring.
Jesper Nørlem Kamp, Albarune Chowdhury, Anders Peter S. Adamsen, and Anders Feilberg
Atmos. Meas. Tech., 12, 2837–2850, https://doi.org/10.5194/amt-12-2837-2019, https://doi.org/10.5194/amt-12-2837-2019, 2019
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We tested the performance of a cavity ring-down spectroscopy (CRDS) instrument from Picarro for measuring ammonia. Interference tests with 10 volatile organic compounds (VOCs) were conducted to find potential interference of these VOCs. Calibrations show excellent linearity over a large dynamic range of NH3 concentrations. There is negligible interference from humidity and few of the tested VOCs. Overall, the CRDS system performs well with only negligible influence from other compounds.
Nobuyuki Aoki, Shigeyuki Ishidoya, Nobuhiro Matsumoto, Takuro Watanabe, Takuya Shimosaka, and Shohei Murayama
Atmos. Meas. Tech., 12, 2631–2646, https://doi.org/10.5194/amt-12-2631-2019, https://doi.org/10.5194/amt-12-2631-2019, 2019
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Observation of atmospheric O2 requires highly precise standard gas mixtures with uncertainty of less than 1 ppm for the O2 mole fraction or 5 per meg for O2 / N2. The uncertainty had not been achieved due unknown uncertainty factors in mass determination of the filled source gases. We first developed the primary standard mixtures with 1 ppm for the O2 mole fraction or 5 per meg by identifying and reducing the unknown uncertainty factors.
Cristina Romero-Trigueros, María Esther González, Marta Doval Miñarro, and Enrique González Ferradás
Atmos. Meas. Tech., 12, 1685–1695, https://doi.org/10.5194/amt-12-1685-2019, https://doi.org/10.5194/amt-12-1685-2019, 2019
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Determining benzene in ambient air is mandatory in the European Union. The reference measuring technique is by gas chromatography (GC), and a photometric ionisation detector is recommended. This study shows that the simultaneous presence of benzene and tetrachloromethane causes a significant decrease in GC–photoionisation detector (GC-PID) readings. Given the importance of this behaviour, a possible mechanism was proposed. This study highlights the uncertainty of measuring benzene with a GC-PID.
Matthieu B. Miller, Sarrah M. Dunham-Cheatham, Mae Sexauer Gustin, and Grant C. Edwards
Atmos. Meas. Tech., 12, 1207–1217, https://doi.org/10.5194/amt-12-1207-2019, https://doi.org/10.5194/amt-12-1207-2019, 2019
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This study was undertaken to demonstrate that a cation exchange membrane (CEM) material used for sampling reactive mercury (RM) does not possess an inherent tendency to collect gaseous elemental mercury (GEM). Using a custom-built mercury vapor permeation system, we found that the CEM material has a very small GEM uptake of approximately 0.004 %, too small to create a significant artifact. We also found that a representative RM compound was collected by the CEM material with high efficiency.
Bradley D. Hall, Andrew M. Crotwell, Benjamin R. Miller, Michael Schibig, and James W. Elkins
Atmos. Meas. Tech., 12, 517–524, https://doi.org/10.5194/amt-12-517-2019, https://doi.org/10.5194/amt-12-517-2019, 2019
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We have used a one-step method for gravimetric preparation of CO2-in-air standards in aluminum cylinders. We consider both adsorption to stainless steel surfaces used in the transfer of highly pure CO2 and adsorption of CO2 to cylinder walls. This work compliments ongoing efforts to support atmospheric monitoring of CO2.
Nicholas D. C. Allen, David R. Worton, Paul J. Brewer, Celine Pascale, and Bernhard Niederhauser
Atmos. Meas. Tech., 11, 6429–6438, https://doi.org/10.5194/amt-11-6429-2018, https://doi.org/10.5194/amt-11-6429-2018, 2018
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This paper investigates the stability of trace level static terpene primary reference materials (PRMs) and how the choice of passivation affects this process. For the first time, sampling canisters that can be used in the field are tested and demonstrated to be suitable for terpene mixtures. The PRMs were compared against a novel dynamic generator system based on dilution of pure limonene vapour emitted from a permeation tube. The effect of cylinder pressure and decanting are also investigated.
Myriam Guillevic, Martin K. Vollmer, Simon A. Wyss, Daiana Leuenberger, Andreas Ackermann, Céline Pascale, Bernhard Niederhauser, and Stefan Reimann
Atmos. Meas. Tech., 11, 3351–3372, https://doi.org/10.5194/amt-11-3351-2018, https://doi.org/10.5194/amt-11-3351-2018, 2018
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We present new primary calibration scales for five halogenated greenhouse gases. The preparation method, newly applied to halocarbons, is dynamic and gravimetric
and allows the generation of reference gas mixtures at near-ambient levels (pmol mol−1). Each prepared molar fraction is traceable to the
realisation of SI units (International System of Units) and is assigned an uncertainty estimate following international guidelines.
Taku Umezawa, Carl A. M. Brenninkmeijer, Thomas Röckmann, Carina van der Veen, Stanley C. Tyler, Ryo Fujita, Shinji Morimoto, Shuji Aoki, Todd Sowers, Jochen Schmitt, Michael Bock, Jonas Beck, Hubertus Fischer, Sylvia E. Michel, Bruce H. Vaughn, John B. Miller, James W. C. White, Gordon Brailsford, Hinrich Schaefer, Peter Sperlich, Willi A. Brand, Michael Rothe, Thomas Blunier, David Lowry, Rebecca E. Fisher, Euan G. Nisbet, Andrew L. Rice, Peter Bergamaschi, Cordelia Veidt, and Ingeborg Levin
Atmos. Meas. Tech., 11, 1207–1231, https://doi.org/10.5194/amt-11-1207-2018, https://doi.org/10.5194/amt-11-1207-2018, 2018
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Isotope measurements are useful for separating different methane sources. However, the lack of widely accepted standards and calibration methods for stable carbon and hydrogen isotopic ratios of methane in air has caused significant measurement offsets among laboratories. We conducted worldwide interlaboratory comparisons, surveyed the literature and assessed them systematically. This study may be of help in future attempts to harmonize data sets of isotopic composition of atmospheric methane.
Bernhard Buchholz and Volker Ebert
Atmos. Meas. Tech., 11, 459–471, https://doi.org/10.5194/amt-11-459-2018, https://doi.org/10.5194/amt-11-459-2018, 2018
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This paper describes the absolute validation of the novel, calibration-free SEALDH-II hygrometer at a traceable humidity generator. During 23 days of permanent operation, 15 H2O mole fractions levels (5–1200 ppmv) at 6 gas pressures (65–950 hPa) were validated. With this validation, SEALDH-II is the first metrologically validated humidity transfer standard which links several scientific airborne and laboratory measurement campaigns to the international metrological water vapor scale.
Lavinia Onel, Alexander Brennan, Michele Gianella, Grace Ronnie, Ana Lawry Aguila, Gus Hancock, Lisa Whalley, Paul W. Seakins, Grant A. D. Ritchie, and Dwayne E. Heard
Atmos. Meas. Tech., 10, 4877–4894, https://doi.org/10.5194/amt-10-4877-2017, https://doi.org/10.5194/amt-10-4877-2017, 2017
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Hydroperoxy (HO2) radicals are key intermediates participating in a rapid chemical cycling at the centre of the tropospheric oxidation. Fluorescence assay by gas expansion (FAGE) technique is the most commonly used for the HO2 measurements in the atmosphere. However, FAGE is an indirect technique, requiring calibration. This work finds a good agreement between the indirect FAGE method and the direct cavity ring-down spectroscopy method and hence validates FAGE and the FAGE calibration method.
Pieter P. Tans, Andrew M. Crotwell, and Kirk W. Thoning
Atmos. Meas. Tech., 10, 2669–2685, https://doi.org/10.5194/amt-10-2669-2017, https://doi.org/10.5194/amt-10-2669-2017, 2017
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We describe a new CO2 calibration system for the Central Calibration Laboratory of the World Meteorological Organization Global Atmosphere Watch program. The system uses two laser spectroscopic instruments to measure the three major CO2 isotopologues individually. We account for isotopic differences between standards in the calibration hierarchy when assigning CO2 mole fraction, eliminating bias due to variations in the isotopic composition.
Jiaping Pang, Xuefa Wen, Xiaomin Sun, and Kuan Huang
Atmos. Meas. Tech., 9, 3879–3891, https://doi.org/10.5194/amt-9-3879-2016, https://doi.org/10.5194/amt-9-3879-2016, 2016
Peter Sperlich, Nelly A. M. Uitslag, Jürgen M. Richter, Michael Rothe, Heike Geilmann, Carina van der Veen, Thomas Röckmann, Thomas Blunier, and Willi A. Brand
Atmos. Meas. Tech., 9, 3717–3737, https://doi.org/10.5194/amt-9-3717-2016, https://doi.org/10.5194/amt-9-3717-2016, 2016
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Isotope measurements in atmospheric CH4 are performed since more than 3 decades. However, standard gases to harmonize global measurements are not available to this day. We designed two methods to calibrate a suite of 8 CH4 gases with a wide range in isotopic composition to the VPDB and VSMOW scales with high precision and accuracy. Synthetic air mixtures with ~2 ppm of calibrated CH4 can be provided to the community by the ISOLAB of the Max Planck Institute for Biogeochemistry in Jena, Germany.
Agnès Perrin, Jean-Marie Flaud, Marco Ridolfi, Jean Vander Auwera, and Massimo Carlotti
Atmos. Meas. Tech., 9, 2067–2076, https://doi.org/10.5194/amt-9-2067-2016, https://doi.org/10.5194/amt-9-2067-2016, 2016
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Improved line positions and intensities have been generated for the 7.6 µm spectral region of nitric acid, relying on a recent laboratory reinvestigation and comparisons of HNO3 volume mixing ratios retrieved from Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) radiances in the 11 and 7.6 µm regions. The much improved consistency of line intensities in both regions will make it possible to use them simultaneously to retrieve atmospheric HNO3.
Véronique Perraud, Simone Meinardi, Donald R. Blake, and Barbara J. Finlayson-Pitts
Atmos. Meas. Tech., 9, 1325–1340, https://doi.org/10.5194/amt-9-1325-2016, https://doi.org/10.5194/amt-9-1325-2016, 2016
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Gas phase organosulfur compounds in air serve as precursors of particles which impact human health, visibility, and climate. We compare here two different approaches to measuring these compounds, one an online mass spectrometry technique and the other canister sampling followed by offline analysis by gas chromatography. We show that each approach has its own advantages and limitations in measuring these compounds in complex mixtures, including some artifacts due to reactions on surfaces.
Shang Sun, Alexander Moravek, Lisa von der Heyden, Andreas Held, Matthias Sörgel, and Jürgen Kesselmeier
Atmos. Meas. Tech., 9, 599–617, https://doi.org/10.5194/amt-9-599-2016, https://doi.org/10.5194/amt-9-599-2016, 2016
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We present a dynamic twin-cuvette system for quantifying the trace gas exchange fluxes between plants and the atmosphere under controlled temperature, light, and humidity conditions. We found out that at a relative humidity of 40 %, the deposition velocity ratio of O3 and PAN was determined to be 0.45. At that humidity, the O3-deposition to the plant leaves was found to be only controlled by leaf stomata. For PAN, an additional resistance inhibited the uptake of PAN by the leaves.
M. C. Leuenberger, M. F. Schibig, and P. Nyfeler
Atmos. Meas. Tech., 8, 5289–5299, https://doi.org/10.5194/amt-8-5289-2015, https://doi.org/10.5194/amt-8-5289-2015, 2015
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Adsorption/desorption effects of trace gases in gas cylinders were investigated. Our measurements indicate a rather strong effect on steel cylinders for CO2 that becomes easily visible through enhanced concentrations for low (<20 bars) gas pressure. Much smaller effects are observed for CO and CH4. Significantly smaller effects are measured for all gas species investigated on aluminium cylinders. Careful selection of gas cylinders for high-precision calibration purposes is recommended.
Z. Peng, D. A. Day, H. Stark, R. Li, J. Lee-Taylor, B. B. Palm, W. H. Brune, and J. L. Jimenez
Atmos. Meas. Tech., 8, 4863–4890, https://doi.org/10.5194/amt-8-4863-2015, https://doi.org/10.5194/amt-8-4863-2015, 2015
C. C. Hoerger, A. Claude, C. Plass-Duelmer, S. Reimann, E. Eckart, R. Steinbrecher, J. Aalto, J. Arduini, N. Bonnaire, J. N. Cape, A. Colomb, R. Connolly, J. Diskova, P. Dumitrean, C. Ehlers, V. Gros, H. Hakola, M. Hill, J. R. Hopkins, J. Jäger, R. Junek, M. K. Kajos, D. Klemp, M. Leuchner, A. C. Lewis, N. Locoge, M. Maione, D. Martin, K. Michl, E. Nemitz, S. O'Doherty, P. Pérez Ballesta, T. M. Ruuskanen, S. Sauvage, N. Schmidbauer, T. G. Spain, E. Straube, M. Vana, M. K. Vollmer, R. Wegener, and A. Wenger
Atmos. Meas. Tech., 8, 2715–2736, https://doi.org/10.5194/amt-8-2715-2015, https://doi.org/10.5194/amt-8-2715-2015, 2015
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The performance of 20 European laboratories involved in long-term non-methane hydrocarbon (NMHC) measurements was assessed with respect to ACTRIS and GAW data quality objectives. The participants were asked to measure both a 30-component NMHC mixture in nitrogen and whole air. The NMHCs were analysed either by GC-FID or GC-MS. Most systems performed well for the NMHC in nitrogen, whereas in air more scatter was observed. Reasons for this are explained in the paper.
A. Kornilova, S. Moukhtar, M. Saccon, L. Huang, W. Zhang, and J. Rudolph
Atmos. Meas. Tech., 8, 2301–2313, https://doi.org/10.5194/amt-8-2301-2015, https://doi.org/10.5194/amt-8-2301-2015, 2015
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A technique for compound specific analysis of stable carbon isotope ratios and concentration of ambient volatile organic compounds (VOC) is presented. It is based on selective VOC sampling onto adsorbent filled cartridges. Examples of measurements conducted demonstrate that the ability to make accurate measurements in air with low VOC mixing ratios is important to avoid bias from an overrepresentation of samples that are strongly impacted by recent emissions.
R. Thalman, M. T. Baeza-Romero, S. M. Ball, E. Borrás, M. J. S. Daniels, I. C. A. Goodall, S. B. Henry, T. Karl, F. N. Keutsch, S. Kim, J. Mak, P. S. Monks, A. Muñoz, J. Orlando, S. Peppe, A. R. Rickard, M. Ródenas, P. Sánchez, R. Seco, L. Su, G. Tyndall, M. Vázquez, T. Vera, E. Waxman, and R. Volkamer
Atmos. Meas. Tech., 8, 1835–1862, https://doi.org/10.5194/amt-8-1835-2015, https://doi.org/10.5194/amt-8-1835-2015, 2015
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Short summary
Measurements of α-dicarbonyl compounds, like glyoxal (CHOCHO) and methyl glyoxal (CH3C(O)CHO), are informative about the rate of hydrocarbon oxidation, oxidative capacity, and secondary organic aerosol (SOA) formation in the atmosphere. We have compared nine instruments and seven techniques to measure α-dicarbonyl, using simulation chamber facilities in the US and Europe. We assess our understanding of calibration, precision, accuracy and detection limits, as well as possible sampling biases.
M. Baasandorj, D. B. Millet, L. Hu, D. Mitroo, and B. J. Williams
Atmos. Meas. Tech., 8, 1303–1321, https://doi.org/10.5194/amt-8-1303-2015, https://doi.org/10.5194/amt-8-1303-2015, 2015
J. Viallon, S. Lee, P. Moussay, K. Tworek, M. Petersen, and R. I. Wielgosz
Atmos. Meas. Tech., 8, 1245–1257, https://doi.org/10.5194/amt-8-1245-2015, https://doi.org/10.5194/amt-8-1245-2015, 2015
F. A. F. Winiberg, S. C. Smith, I. Bejan, C. A. Brumby, T. Ingham, T. L. Malkin, S. C. Orr, D. E. Heard, and P. W. Seakins
Atmos. Meas. Tech., 8, 523–540, https://doi.org/10.5194/amt-8-523-2015, https://doi.org/10.5194/amt-8-523-2015, 2015
C. S. Brauer, T. A. Blake, A. B. Guenther, S. W. Sharpe, R. L. Sams, and T. J. Johnson
Atmos. Meas. Tech., 7, 3839–3847, https://doi.org/10.5194/amt-7-3839-2014, https://doi.org/10.5194/amt-7-3839-2014, 2014
D. W. Fahey, R.-S. Gao, O. Möhler, H. Saathoff, C. Schiller, V. Ebert, M. Krämer, T. Peter, N. Amarouche, L. M. Avallone, R. Bauer, Z. Bozóki, L. E. Christensen, S. M. Davis, G. Durry, C. Dyroff, R. L. Herman, S. Hunsmann, S. M. Khaykin, P. Mackrodt, J. Meyer, J. B. Smith, N. Spelten, R. F. Troy, H. Vömel, S. Wagner, and F. G. Wienhold
Atmos. Meas. Tech., 7, 3177–3213, https://doi.org/10.5194/amt-7-3177-2014, https://doi.org/10.5194/amt-7-3177-2014, 2014
P. Boylan, D. Helmig, and J.-H. Park
Atmos. Meas. Tech., 7, 1231–1244, https://doi.org/10.5194/amt-7-1231-2014, https://doi.org/10.5194/amt-7-1231-2014, 2014
B. D. Hall, A. Engel, J. Mühle, J. W. Elkins, F. Artuso, E. Atlas, M. Aydin, D. Blake, E.-G. Brunke, S. Chiavarini, P. J. Fraser, J. Happell, P. B. Krummel, I. Levin, M. Loewenstein, M. Maione, S. A. Montzka, S. O'Doherty, S. Reimann, G. Rhoderick, E. S. Saltzman, H. E. Scheel, L. P. Steele, M. K. Vollmer, R. F. Weiss, D. Worthy, and Y. Yokouchi
Atmos. Meas. Tech., 7, 469–490, https://doi.org/10.5194/amt-7-469-2014, https://doi.org/10.5194/amt-7-469-2014, 2014
X. Pang, A. C. Lewis, A. R. Rickard, M. T. Baeza-Romero, T. J. Adams, S. M. Ball, M. J. S. Daniels, I. C. A. Goodall, P. S. Monks, S. Peppe, M. Ródenas García, P. Sánchez, and A. Muñoz
Atmos. Meas. Tech., 7, 373–389, https://doi.org/10.5194/amt-7-373-2014, https://doi.org/10.5194/amt-7-373-2014, 2014
J. S. Lim, D. M. Moon, J. S. Kim, W.-T. Yun, and J. Lee
Atmos. Meas. Tech., 6, 2293–2299, https://doi.org/10.5194/amt-6-2293-2013, https://doi.org/10.5194/amt-6-2293-2013, 2013
M. Wendeberg, J. M. Richter, M. Rothe, and W. A. Brand
Atmos. Meas. Tech., 6, 817–822, https://doi.org/10.5194/amt-6-817-2013, https://doi.org/10.5194/amt-6-817-2013, 2013
P. Sperlich, M. Guillevic, C. Buizert, T. M. Jenk, C. J. Sapart, H. Schaefer, T. J. Popp, and T. Blunier
Atmos. Meas. Tech., 5, 2227–2236, https://doi.org/10.5194/amt-5-2227-2012, https://doi.org/10.5194/amt-5-2227-2012, 2012
C. L. Faiola, M. H. Erickson, V. L. Fricaud, B. T. Jobson, and T. M. VanReken
Atmos. Meas. Tech., 5, 1911–1923, https://doi.org/10.5194/amt-5-1911-2012, https://doi.org/10.5194/amt-5-1911-2012, 2012
F. Aemisegger, P. Sturm, P. Graf, H. Sodemann, S. Pfahl, A. Knohl, and H. Wernli
Atmos. Meas. Tech., 5, 1491–1511, https://doi.org/10.5194/amt-5-1491-2012, https://doi.org/10.5194/amt-5-1491-2012, 2012
C. J. Sapart, C. van der Veen, I. Vigano, M. Brass,, R. S. W. van de Wal, M. Bock, H. Fischer, T. Sowers, C. Buizert, P. Sperlich, T. Blunier, M. Behrens, J. Schmitt, B. Seth, and T. Röckmann
Atmos. Meas. Tech., 4, 2607–2618, https://doi.org/10.5194/amt-4-2607-2011, https://doi.org/10.5194/amt-4-2607-2011, 2011
E. Bahlmann, I. Weinberg, R. Seifert, C. Tubbesing, and W. Michaelis
Atmos. Meas. Tech., 4, 2073–2086, https://doi.org/10.5194/amt-4-2073-2011, https://doi.org/10.5194/amt-4-2073-2011, 2011
A. Jordan and B. Steinberg
Atmos. Meas. Tech., 4, 509–521, https://doi.org/10.5194/amt-4-509-2011, https://doi.org/10.5194/amt-4-509-2011, 2011
T. E. L. Smith, M. J. Wooster, M. Tattaris, and D. W. T. Griffith
Atmos. Meas. Tech., 4, 97–116, https://doi.org/10.5194/amt-4-97-2011, https://doi.org/10.5194/amt-4-97-2011, 2011
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Short summary
The amplitude, the temperature dependence, and the physical origin of the water vapour absorption continuum are a long standing issue in molecular spectroscopy with a direct impact in atmospheric and planetary sciences. Using highly sensitive laser spectrometers, the water self continuum has been determined with unprecedented sensitivity in infrared atmospheric transparency windows.
The amplitude, the temperature dependence, and the physical origin of the water vapour...
