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    Academic Journals

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• Data assimilation of CrIS NH.sub.3 satellite observations for improving spatiotemporal NH.sub.3 distributions in LOTOS-EUROS.

  Authors:Shelley van der Graaf, Enrico Dammers, Arjo Segers, Richard Kranenburg, Martijn Schaap, Mark W. Shephard, et al.From:Atmospheric Chemistry and Physics (Vol. 22, Issue 2) Peer-Reviewed

  Jan. 20, 2022413 words Article Atmospheric levels of ammonia (NH.sub.3) have substantially increased during the last century, posing a hazard to both human health and environmental quality. The atmospheric budget of NH.sub.3, however, is still highly...

• Position correction in dust storm forecasting using LOTOS-EUROS v2.1: grid-distorted data assimilation v1.0.

  Authors:Jianbing Jin, Arjo Segers, Hai Xiang Lin, Bas Henzing, Xiaohui Wang, Arnold Heemink, et al.From:Geoscientific Model Development (Vol. 14, Issue 9) Peer-Reviewed

  Sept. 10, 2021266 words Brief article When calibrating simulations of dust clouds, both the intensity and the position are important. Intensity errors arise mainly from uncertain emission and sedimentation strengths, while position errors are attributed...

• Comparison of tropospheric NO.sub.2 columns from MAX-DOAS retrievals and regional air quality model simulations

  Authors:Anne-Marlene Blechschmidt, Joaquim Arteta, Adriana Coman, Lyana Curier, Henk Eskes, Gilles Foret, et al.From:Atmospheric Chemistry and Physics (Vol. 20, Issue 5) Peer-Reviewed

  Mar. 6, 2020330 words Brief article Multi-axis differential optical absorption spectroscopy (MAX-DOAS) tropospheric NO.sub.2 column retrievals from four European measurement stations are compared to simulations from five regional air quality models which...

• The Global Methane Budget 2000-2017.

  Authors:Marielle Saunois, Ann R. Stavert, Ben Poulter, Philippe Bousquet, Josep G. Canadell, Robert B. Jackson, et al.From:Earth System Science Data (Vol. 12, Issue 3) Peer-Reviewed

  July 15, 2020693 words Report Understanding and quantifying the global methane (CH.sub.4) budget is important for assessing realistic pathways to mitigate climate change. Atmospheric emissions and concentrations of CH.sub.4 continue to increase,...

• Benefit of ozone observations from Sentinel-5P and future Sentinel-4 missions on tropospheric composition.

  Authors:Samuel Quesada-Ruiz, Jean-Luc Attié, William A. Lahoz, Rachid Abida, Philippe Ricaud, Laaziz El Amraoui, et al.From:Atmospheric Measurement Techniques (Vol. 13, Issue 1) Peer-Reviewed

  Jan. 14, 2020347 words Brief article We present an observing simulated system experiment (OSSE) dedicated to evaluate the potential added value from the Sentinel-4 and the Sentinel-5P observations on tropospheric ozone composition. For this purpose, the...

• Ensemble forecasts of air quality in eastern China - Part 2: Evaluation of the MarcoPolo-Panda prediction system, version 1

  Authors:Anna Katinka Petersen, Guy P. Brasseur, Idir Bouarar, Johannes Flemming, Michael Gauss, Fei Jiang, et al.From:Geoscientific Model Development (Vol. 12, Issue 3) Peer-Reviewed

  Apr. 2, 201976 words Author abstract, Bri... Byline: Anna Katinka Petersen, Guy P. Brasseur, Idir Bouarar, Johannes Flemming, Michael Gauss, Fei Jiang, Rostislav Kouznetsov, Richard Kranenburg, Bas Mijling, Vincent-Henri Peuch, Matthieu Pommier, Arjo Segers,...

• Source backtracking for dust storm emission inversion using an adjoint method: case study of Northeast China.

  Authors:Jianbing Jin, Arjo Segers, Hong Liao, Arnold Heemink, Richard Kranenburg, and Hai Xiang LinFrom:Atmospheric Chemistry and Physics (Vol. 20, Issue 23) Peer-Reviewed

  Dec. 8, 2020370 words Case study, Brief ar... Emission inversion using data assimilation fundamentally relies on having the correct assumptions about the emission background error covariance. A perfect covariance accounts for the uncertainty based on prior knowledge...

• Comparison of mean age of air in five reanalyses using the BASCOE transport model

  Authors:Simon Chabrillat, Corinne Vigouroux, Yves Christophe, Andreas Engel, Quentin Errera, Daniele Minganti, et al.From:Atmospheric Chemistry and Physics (Vol. 18, Issue 19) Peer-Reviewed

  Oct. 12, 2018601 words Brief article, Repor...

  We present a consistent intercomparison of the mean age of air (AoA) according to five modern reanalyses: the European Centre for Medium-Range Weather Forecasts Interim Reanalysis (ERA-Interim), the Japanese...

• Analysis of summer O.sub.3 in the Madrid air basin with the LOTOS-EUROS chemical transport model.

  Authors:Miguel Escudero, Arjo Segers, Richard Kranenburg, Xavier Querol, Andrés Alastuey, Rafael Borge, et al.From:Atmospheric Chemistry and Physics (Vol. 19, Issue 22) Peer-Reviewed

  Nov. 26, 2019344 words Report, Brief articl... Tropospheric O.sub.3 remains a major air-quality issue in the Mediterranean region. The combination of large anthropogenic emissions of precursors, transboundary contributions, a warm and dry aestival climate, and...

• Accelerating volcanic ash data assimilation using a mask-state algorithm based on an ensemble Kalman filter: a case study with the LOTOS-EUROS model (version 1.10)

  Authors:Guangliang Fu, Hai Xiang Lin, Arnold Heemink, Sha Lu, Arjo Segers, Nils van Velzen, et al.From:Geoscientific Model Development (Vol. 10, Issue 4) Peer-Reviewed

  Apr. 24, 2017199 words Author abstract, Bri... In this study, we investigate a strategy to accelerate the data assimilation (DA) algorithm. Based on evaluations of the computational time, the analysis step of the assimilation turns out to be the most expensive part....

• Model-based aviation advice on distal volcanic ash clouds by assimilating aircraft in situ measurements

  Authors:Guangliang Fu, Arnold Heemink, Sha Lu, Arjo Segers, Konradin Weber, and Hai-Xiang LinFrom:Atmospheric Chemistry and Physics (Vol. 16, Issue 14) Peer-Reviewed

  July 26, 2016213 words Brief article The forecast accuracy of distal volcanic ash clouds is important for providing valid aviation advice during volcanic ash eruption. However, because the distal part of volcanic ash plume is far from the volcano, the...

• Sudden changes in nitrogen dioxide emissions over Greece due to lockdown after the outbreak of COVID-19.

  Authors:Maria-Elissavet Koukouli, Ioanna Skoulidou, Andreas Karavias, Isaak Parcharidis, Dimitris Balis, Astrid Manders, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 3) Peer-Reviewed

  Feb. 9, 2021402 words Brief article The unprecedented order, in modern peaceful times, for a near-total lockdown of the Greek population as a means of protection against severe acute respiratory syndrome coronavirus 2, commonly known as COVID-19, has...

• Evaluation of the LOTOS-EUROS NO.sub.2 simulations using ground-based measurements and S5P/TROPOMI observations over Greece.

  Authors:Ioanna Skoulidou, Maria-Elissavet Koukouli, Astrid Manders, Arjo Segers, Dimitris Karagkiozidis, Myrto Gratsea, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 7) Peer-Reviewed

  Apr. 6, 2021381 words Brief article The evaluation of chemical transport models, CTMs, is essential for the assessment of their performance regarding the physical and chemical parameterizations used. While regional CTMs have been widely used and evaluated...

• Ozone forecasts of the stratospheric polar vortex-splitting event in September 2002

  Authors:Henk Eskes, Arjo Segers, and Peter van VelthovenFrom:Journal of the Atmospheric Sciences (Vol. 62, Issue 3) Peer-Reviewed

  Mar. 2005226 words Author abstract

   Abstract Only

• Impact of spaceborne carbon monoxide observations from the S-5P platform on tropospheric composition analyses and forecasts

  Authors:Rachid Abida, Laaziz El Amraoui, Philippe Ricaud, William Lahoz, Henk Eskes, Arjo Segers, et al.From:Atmospheric Chemistry and Physics (Vol. 17, Issue 2) Peer-Reviewed

  Jan. 24, 2017252 words Author abstract, Bri... We use the technique of Observing System Simulation Experiments (OSSEs) to quantify the impact of spaceborne carbon monoxide (CO) total column observations from the Sentinel-5 Precursor (S-5P) platform on tropospheric...

• Ensemble forecasts of air quality in eastern China - Part 1: Model description and implementation of the MarcoPolo-Panda prediction system, version 1

  Authors:Guy P. Brasseur, Ying Xie, Anna Katinka Petersen, Idir Bouarar, Johannes Flemming, Michael Gauss, et al.From:Geoscientific Model Development (Vol. 12, Issue 1) Peer-Reviewed

  Jan. 3, 2019213 words Author abstract, Bri...

  An operational multi-model forecasting system for air quality including nine different chemical transport models has been developed and provides daily forecasts of ozone, nitrogen oxides, and particulate matter for...

• Modeling atmospheric ammonia using agricultural emissions with improved spatial variability and temporal dynamics.

  Authors:Xinrui Ge, Martijn Schaap, Richard Kranenburg, Arjo Segers, Gert Jan Reinds, Hans Kros, et al.From:Atmospheric Chemistry and Physics (Vol. 20, Issue 24) Peer-Reviewed

  Dec. 23, 2020450 words Article Ammonia emissions into the atmosphere have increased substantially in Europe since 1960, primarily due to the intensification of agriculture, as illustrated by enhanced livestock and the use of fertilizers. These...

• Three-dimensional methane distribution simulated with FLEXPART 8-CTM-1.1 constrained with observation data

  Authors:Christine D. Groot Zwaaftink, Stephan Henne, Rona L. Thompson, Edward J. Dlugokencky, Toshinobu Machida, Jean-Daniel Paris, et al.From:Geoscientific Model Development (Vol. 11, Issue 11) Peer-Reviewed

  Nov. 8, 2018527 words Author abstract, Bri...

  A Lagrangian particle dispersion model, the FLEXible PARTicle dispersion chemical transport model (FLEXPART CTM), is used to simulate global three-dimensional fields of trace gas abundance. These fields are...

• Multi-model ensemble simulations of olive pollen distribution in Europe in 2014: current status and outlook

  Authors:Mikhail Sofiev, Olga Ritenberga, Roberto Albertini, Joaquim Arteta, Jordina Belmonte, Carmi Geller Bernstein, et al.From:Atmospheric Chemistry and Physics (Vol. 17, Issue 20) Peer-Reviewed

  Oct. 17, 2017385 words Author abstract, Bri... The paper presents the first modelling experiment of the European-scale olive pollen dispersion, analyses the quality of the predictions, and outlines the research needs. A 6-model strong ensemble of...

• Machine learning for observation bias correction with application to dust storm data assimilation

  Authors:Jianbing Jin, Hai Xiang Lin, Arjo Segers, Yu Xie, and Arnold HeeminkFrom:Atmospheric Chemistry and Physics (Vol. 19, Issue 15) Peer-Reviewed

  Aug. 9, 2019384 words Author abstract, Bri...

  Data assimilation algorithms rely on a basic assumption of an unbiased observation error. However, the presence of inconsistent measurements with nontrivial biases or inseparable baselines is unavoidable in practice....