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Isao Murata
Researcher at Tohoku University
Publications - 51
Citations - 863
Isao Murata is an academic researcher from Tohoku University. The author has contributed to research in topics: Polar vortex & Atmosphere. The author has an hindex of 15, co-authored 48 publications receiving 746 citations. Previous affiliations of Isao Murata include Nagoya University & University of Tokyo.
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Journal ArticleDOI
Recent Northern Hemisphere stratospheric HCl increase due to atmospheric circulation changes
Emmanuel Mahieu,Martyn P. Chipperfield,Justus Notholt,Thomas Reddmann,Jill Anderson,Peter F. Bernath,Peter F. Bernath,Peter F. Bernath,Thomas Blumenstock,M. T. Coffey,Sandip Dhomse,Wuhu Feng,Bruno Franco,Lucien Froidevaux,David W. T. Griffith,James W. Hannigan,Frank Hase,Ryan Hossaini,Nicholas B. Jones,Isamu Morino,Isao Murata,Hideaki Nakajima,Mathias Palm,Clare Paton-Walsh,James M. Russell,Matthias Schneider,Christian Servais,Dan Smale,K. A. Walker,K. A. Walker +29 more
TL;DR: Ground-based and satellite data are presented that show a recent and significant increase in hydrogen chloride (HCl), the main stratospheric chlorine reservoir, starting around 2007 in the lower stratosphere of the Northern Hemisphere, in contrast with the ongoing monotonic decrease of near-surface source gases.
Journal ArticleDOI
Spectroscopic measurements of tropospheric CO, C2H6, C2H2, and HCN in northern Japan
Yongjing Zhao,Yongjing Zhao,Kimberly Strong,Yutaka Kondo,Masahiko Koike,Yutaka Matsumi,H. Irie,Curtis P. Rinsland,Nicholas B. Jones,K. Suzuki,Hideaki Nakajima,Hideaki Nakane,Isao Murata +12 more
TL;DR: In this article, the vertical profile retrieval algorithm (SFIT2) was used to retrieve column amounts and mixing ratios of CO, C2H6, C 2H2, and HCN from ground-based infrared solar spectra.
Posted ContentDOI
Ten years of atmospheric methane from ground-based NDACC FTIR observations
Whitney Bader,Benoît Bovy,Stephanie Conway,Kimberly Strong,Dan Smale,Alexander J. Turner,Thomas Blumenstock,Chris D. Boone,Ancelin Coulon,Omaira García,David W. T. Griffith,Frank Hase,Petra Hausmann,Nicholas B. Jones,Paul B. Krummel,Isao Murata,Isamu Morino,Hideaki Nakajima,Simon O'Doherty,Clare Paton-Walsh,John Robinson,Rodrigue Sandrin,Matthias Schneider,Christian Servais,Ralf Sussmann,Emmanuel Mahieu +25 more
TL;DR: In this article, the authors used the GEOS-Chem chemical transport model tagged simulation that accounts for the contribution of each emission source and one sink in the total methane, simulated over the 2005-2012 time period and based on emissions inventories and transport.
Journal ArticleDOI
Observed and simulated time evolution of HCl, ClONO§2 and HF total column abundances.
R. Kohlhepp,Roland Ruhnke,Martyn P. Chipperfield,M. De Mazière,Justus Notholt,Sabine Barthlott,R. L. Batchelor,R. L. Batchelor,Ronald D. Blatherwick,T. Blumenstock,M. T. Coffey,Philippe Demoulin,H. Fast,Wuhu Feng,Aaron Goldman,David W. T. Griffith,K Hamann,James W. Hannigan,Frank Hase,Nicholas B. Jones,A. Kagawa,A. Kagawa,I. Kaiser,Yasuko Kasai,Ole Kirner,W. Kouker,Rodica Lindenmaier,Emmanuel Mahieu,Richard L. Mittermeier,B. M. Monge-Sanz,Isamu Morino,Isao Murata,Hideaki Nakajima,Mathias Palm,Clare Paton-Walsh,Uwe Raffalski,Th. Reddmann,Markus Rettinger,Curtis P. Rinsland,Eugene Rozanov,Matthias Schneider,C. Senten,Christian Servais,B-M Sinnhuber,B-M Sinnhuber,Dan Smale,Kim Strong,Ralf Sussmann,Jeffrey R. Taylor,Jeffrey R. Taylor,G. Vanhaelewyn,Thorsten Warneke,Cynthia H. Whaley,M Wiehle,Stephen W. Wood +54 more
TL;DR: In this paper, the authors provide a near-global overview on ground-based measurements of the two major stratospheric chlorine reservoir species, HCl and ClONO2, with a focus on the time range 2000-2009.
Journal ArticleDOI
TROPOMI-Sentinel-5 Precursor formaldehyde validation using an extensive network of ground-based Fourier-transform infrared stations
Corinne Vigouroux,Bavo Langerock,Carlos Augusto Bauer Aquino,Thomas Blumenstock,Zhibin Cheng,Martine De Mazière,Isabelle De Smedt,Michel Grutter,James W. Hannigan,Nicholas B. Jones,Rigel Kivi,Diego Loyola,Erik Lutsch,Emmanuel Mahieu,Maria Makarova,Jean Marc Metzger,Isamu Morino,Isao Murata,Tomoo Nagahama,Justus Notholt,Ivan Ortega,Mathias Palm,Gaia Pinardi,Amelie N. Röhling,Dan Smale,Wolfgang Stremme,Kim Strong,Ralf Sussmann,Yao Té,Michel Van Roozendael,Pucai Wang,Holger Winkler +31 more
TL;DR: In this paper, the authors assess the quality of the latest HCHO TROPOMI products versions 1.5-7, using ground-based solar-absorption FTIR (Fourier-transform infrared) measurements of HCHO from 25 stations around the world, including high-, mid-, and low-latitude sites.