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5 results on '"J. L. Lapierre"'

1. Influence of convection on the upper-tropospheric O3 and NOx budget in southeastern China

Author

X. Zhang, Y. Yin, R. van der A, H. Eskes, J. van Geffen, Y. Li, X. Kuang, J. L. Lapierre, K. Chen, Z. Zhen, J. Hu, C. He, J. Chen, R. Shi, J. Zhang, X. Ye, and H. Chen

Subjects
Physics, QC1-999, Chemistry, QD1-999
Abstract

Thunderstorms can significantly influence the air composition via strong updraft and lightning nitrogen oxides (LNOx). In this study, the ozonesondes and TROPOMI (TROPOspheric Monitoring Instrument) nitrogen dioxide (NO2) observations for two cases are combined with a model to investigate the effects of typical strong convection on vertical redistribution of air pollutants in Nanjing, southeastern China. The ozonesonde observations show higher O3 and water vapor mixing ratios in the upper troposphere (UT) after convection, indicating the strong updraft transporting lower-level air masses into the UT and the possible downward O3-rich air near the top of UT over the convective period. During the whole convection life cycle, the UT O3 production is driven by the chemistry (5–10 times the magnitude of dynamic contribution) and reduced by the LNOx (−40 %). Sensitivity tests demonstrate that neglecting LNOx in standard TROPOMI NO2 products causes overestimated air mass factors over fresh lightning regions and the opposite for outflow and aged lightning areas. Therefore, a new high-resolution retrieval algorithm is applied to estimate the LNOx production efficiency. Our work shows the demand for high-resolution modeling and satellite observations on LNOx emissions of both active and dissipated convection, especially small-scale storms.

Published
2022
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2. Estimates of lightning NOx production based on high-resolution OMI NO2 retrievals over the continental US

Author

X. Zhang, Y. Yin, R. van der A, J. L. Lapierre, Q. Chen, X. Kuang, S. Yan, J. Chen, C. He, and R. Shi

Subjects
Environmental engineering, TA170-171, Earthwork. Foundations, TA715-787
Abstract

Lightning serves as the dominant source of nitrogen oxides (NOx=NO+NO2) in the upper troposphere (UT), with a strong impact on ozone chemistry and the hydroxyl radical production. However, the production efficiency (PE) of lightning nitrogen oxides (LNOx) is still quite uncertain (32–1100 mol NO per flash). Satellite measurements are a powerful tool to estimate LNOx directly compared to conventional platforms. To apply satellite data in both clean and polluted regions, a new algorithm for calculating LNOx has been developed that uses the Berkeley High-Resolution (BEHR) v3.0B NO2 retrieval algorithm and the Weather Research and Forecasting model coupled with chemistry (WRF-Chem). LNOx PE over the continental US is estimated using the NO2 product of the Ozone Monitoring Instrument (OMI) data and the Earth Networks Total Lightning Network (ENTLN) data. Focusing on the summer season during 2014, we find that the lightning NO2 (LNO2) PE is 32±15 mol NO2 per flash and 6±3 mol NO2 per stroke while LNOx PE is 90±50 mol NOx per flash and 17±10 mol NOx per stroke. Results reveal that our method reduces the sensitivity to the background NO2 and includes much of the below-cloud LNO2. As the LNOx parameterization varies in studies, the sensitivity of our calculations to the setting of the amount of lightning NO (LNO) is evaluated. Careful consideration of the ratio of LNO2 to NO2 is also needed, given its large influence on the estimation of LNO2 PE.

Published
2020
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4. Free Communication Abstracts

Author

Bruce F. O'Hara, Yasuichiro Fukuda, H. Adami, T. Calarese, Tina M. Devlin, Tamar Shochat, R. M. Frieboes, Majda Taoudi Benchekroun, Ramalingam Vetrivelan, H. Danker-Hopfe, Robert W. McCarley, Dinesh Pal, Juan C. Toledo, I. Haimov, Fabio Moroni, Ennio A. Vivaldi, Melvi Methippara, D. Balakrishnan, Christopher E. Kline, Giovanna Zoccoli, R. Griffiths, G. Zoccoli Wild, Jasonm Passafiume, S. C. Veasey, M. Rivero, Oren Sachs, Leon Lack, Shawn D. Youngstedt, Priyattam J. Shiromani, Csóka Szilvia, H. Murck, A. M. Walker, Tsuneharo Miki, S. Esteban, Isabella Heuser, Yoshiyuki Ueno, M. B. Calzavara, D. A. Grant, Noor Alam, Deependra Kumar, Sallinen Mikael, Paul J. Mills, Mark Dunleavy, A. Nictren, P. Fenik, Rachida Roky, Lyudmila I. Kiyashchenko, Naoki Ochiai, A. Turner, Barry Taylor, G. Pillar, Michael Gradisar, Dennis McGinty, Jerome M. Siegel, Peter M Parslow, Velayudhan Mohan Kumar, F. Regen, Kis TamÁs, Mitsuaki Yamamoto, J.-S. Kang, Frank Desarnaud, Susan Calleran, Hans Dorn, Yuichi Inoue, H. E. Kuenzel, Ruben Guzman-Marin, Emilia Sforza, Seema Rai, Norihito Katayama, I. Rukhadze, Dung Viet Nguyen, Joel E. Dimsdale, Adrián Ocampo-Garcés, Helen Wright, Tomoyuki Kuwaki, Feng Xu, I. Gvilia, A. Steiger, Muhammad-Tariq Bashir, P. Cassaglia, Eric Murillo-Rodríguez, Yasuo Hishikawa, Richard Harding, David Shitrit, Birendra Nath Mallick, Igor Grant, Satoshi Hozumi, Hironobu Yaegashi, A. L. Vyssotski, E. Klann, T. Portnoy, Havrán Linda, I. Tuin, Lázár Alpár Sándor, Keisuke Yamamoto, Mitsuyuki Nakao, Heidi Louise Richardson, U. Voss, K. Puvanendran, Nir Peled, Amit Biswas, P. Storrs, Yasuhiro Matsumoto, Rajagopalan Srividya, M. Gogichadze, Elena I. Rodionova, U. Ziemann, Michele Ferrara, Luigi De Gennaro, R. Peled, Claudia Bentancor, Maria Concetta Pellicciari, Elke De Valck, O. Tzischinsky, K. R. Kessler, H. Dorn, Barbara Galland, Shamini Jain, R. Szymusiak, Richard R. Bootzin, Radhika Basheer, Ivan N. Pigarev, Akira Nakamura, R. Hsu, Y. Y. Lai, Jefferson da Luz Costa, Frussa-Filho, Noriko Matsuura, R. V. Rial, Lalini Ramanathan, Ken D. O'Halloran, Härmä Mikko, C. di Perri, Tetsuo Shimizu, Prashan T. Kaul, D. F. Kripke, R. Edwin, N. Breznitz, Rama Maganti, A. Gagliano, Fabiana Fratello, Masashi Yanagisawa, Sunil Kumar, G. Auburger, Peretz Lavie, Keng-Tee Chew, Kohtoku Satoh, Isabela B. Antunes, Hiroshi Iwasaki, R. Epstein, I. A. Antonijevic, Ryoji Aritomi, M. C. Batista, Ausaf A. Farooqui, Daiki Ishiura, Evan Tan, Joseph De Koninck, Dmitry Gerashchenko, Kazuo Mishima, Jennene Maria Wild, Mordechai R. Kramer, Gerald A. Marks, M. Xu, Wei Zhang, Melinda Sverteczki, H. P. Lipp, I. Aricò, P. O. Kosenko, Michael Schredl, K. Held, Alain Buguet, L. Lin, R. Naveh, O. Tzchishinsky, Florian Chapotot, G.-X. Zhan, Velayadhan Mohan Kumar, Kc Hsieh, Orla P. Hornung, Francesca Regen, Olivier Mairesse, M. C. Barriga, F. Mckenna, K. Hume, Brahim Benaji, Ekaterina V. Levichkina, Rigó Péter, Naomi Adachi, Ronald Szymusiak, Hruda Nanda Mallick, Mark R. Zielinski, G. Mento, Christian C. Birabil, Marisa Pedemonte, Monica L. Andersen, S. Shiloh, Yumiko Mishima, Etsunori Fujita, Alejandro Bassi, O. I. Lyamin, L. Kong, Juliana C. Perry, Megumi Kaji, P. J. Shiromani, Robert E. Strecker, Russell E. Poland, C. Blanco-Centurion, A. Lee, S. Thirunavukkarasu, H. Steinmetz, Adrian M. Walker, Akihiro Kawauchi, R. Silvestri, P. Herer, Yukihiko Kayama, Takuma Tozawa, J. P. N. Mishra, Kohji Murata, F. Serrano, Thomas L. Patterson, Raymond Cluydts, S. Aparicio, Daniel A. Grant, M. L. Andersen, Donncha Lane, Ambika Prasad K. Mahapatra, Marie Goulden, Rosemary S.C. Horne, Alexander A. Loshkarev, S. Shiromani, Yumi Ogura, Boris Y. Mileykovskiy, D. Pratico, Giuseppe Curcio, D. Mcginty, Michael G. Ziegler, Aidan Bradford, C. Garau, Kirstin Aschbacher, M. C. Nicolau, Carlos Blanco-Centurion, Yasuro Takahashi, T. M. Pokidchenko, Ricardo A. Velluti, J. L. Lapierre, Sergio Tufik, B. Morales, Emmanuel Mignot, T. Basishvili, Heidi Danker-Hopfe, Kamalesh K. Gulia, Seiji Nishino, Yoshimasa Koyama, L. Ling, Bódizs Robert, B. S. Virudhagirinathan, N. Emukhvari, Sonia Ancoli-Israel, Toby Bramwell, Peter Theuns, Cristina Marzano, Ben-Shiang Den, Shigehiko Kaneko, S. Tufik, Uma Rao, Lianqi Liu, Tsutomu Kamei, and L. M. Mukhametov

Subjects
Health psychology, medicine.medical_specialty, Neuropsychology and Physiological Psychology, Psychotherapist, Neurology, Physiology, Physiology (medical), medicine, Human physiology, Psychology
Published
2005
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5. Spaceborne Observations of Lightning NO 2 in the Arctic.

Author

Zhang X, van der A R, Ding J, Eskes H, van Geffen J, Yin Y, Anema J, Vagasky C, L Lapierre J, and Kuang X

Subjects
Nitrogen Dioxide analysis, Arctic Regions, Nitrogen Oxides, Environmental Monitoring methods, Air Pollutants analysis, Lightning, Ozone analysis
Abstract

The Arctic region is experiencing notable warming as well as more lightning. Lightning is the dominant source of upper tropospheric nitrogen oxides (NO x ), which are precursors for ozone and hydroxyl radicals. In this study, we combine the nitrogen dioxide (NO 2 ) observations from the TROPOspheric Monitoring Instrument (TROPOMI) with Vaisala Global Lightning Dataset 360 to evaluate lightning NO 2 (LNO 2 ) production in the Arctic. By analyzing consecutive TROPOMI NO 2 observations, we determine the lifetime and production efficiency of LNO 2 during the summers of 2019-2021. Our results show that the LNO 2 production efficiency over the ocean is ∼6 times higher than over continental regions. Additionally, we find that a higher LNO 2 production efficiency is often correlated with lower lightning rates. The summertime lightning NO x emission in the Arctic (north of 70° N) is estimated to be 219 ± 116 Mg of N, which is equal to 5% of anthropogenic NO x emissions. However, for the span of a few hours, the Arctic LNO 2 density can even be comparable to anthropogenic NO 2 emissions in the region. These new findings suggest that LNO 2 can play an important role in the upper-troposphere/lower-stratosphere atmospheric chemical processes in the Arctic, particularly during the summer.

Published
2023
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