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Ivan Ortega
Researcher at National Center for Atmospheric Research
Publications - 62
Citations - 1540
Ivan Ortega is an academic researcher from National Center for Atmospheric Research. The author has contributed to research in topics: Environmental science & Differential optical absorption spectroscopy. The author has an hindex of 18, co-authored 54 publications receiving 1117 citations. Previous affiliations of Ivan Ortega include University of Colorado Boulder & National Autonomous University of Mexico.
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Journal ArticleDOI
Top-down estimation of carbon monoxide emissions from the Mexico Megacity based on FTIR measurements from ground and space
Wolfgang Stremme,Michel Grutter,Claudia Rivera,Alejandro Bezanilla,Agustín R. García,Ivan Ortega,Ivan Ortega,Michael George,Cathy Clerbaux,Pierre-François Coheur,Daniel Hurtmans,James W. Hannigan,M. T. Coffey +12 more
TL;DR: In this article, a top-down emission estimate of the annual CO emission of the Mexico City metropolitan area (MCMA) was derived from solar absorption infrared spectroscopic measurements since October 2007.
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Gas composition of Popocatépetl Volcano between 2007 and 2008: FTIR spectroscopic measurements of an explosive event and during quiescent degassing
TL;DR: Grutter et al. as mentioned in this paper used a portable FTIR spectrometer with a scanning mirror for fast tracking of the sun provided the flexibility, quality, and simplicity needed for field deployment.
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MAX-DOAS measurements of HONO slant column densities during the MAD-CAT campaign: inter-comparison, sensitivity studies on spectral analysis settings, and error budget
Yang Wang,Yang Wang,Steffen Beirle,François Hendrick,Andreas Hilboll,Junli Jin,Aleksandra A. Kyuberis,Johannes Lampel,Johannes Lampel,Ang Li,Yuhan Luo,Lorenzo Lodi,Jianzhong Ma,Monica Navarro,Ivan Ortega,Enno Peters,Oleg L. Polyansky,Oleg L. Polyansky,Julia Remmers,Andreas Richter,Olga Puentedura,Michel Van Roozendael,André Seyler,Jonathan Tennyson,Rainer Volkamer,Pinhua Xie,Nikolai F. Zobov,Thomas Wagner +27 more
TL;DR: In this article, the authors compared the results of the MAD-CAT-2013 comparison campaign for Aerosols and Trace gases (HONO) derived from measurements of seven different instruments.
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Unprecedented Atmospheric Ammonia Concentrations Detected in the High Arctic From the 2017 Canadian Wildfires
Erik Lutsch,Kimberly Strong,Dylan B. A. Jones,Ivan Ortega,James W. Hannigan,Enrico Dammers,Mark W. Shephard,Eleanor Morris,Killian L. Murphy,Mathew J. Evans,Mark Parrington,Simon Whitburn,Martin Van Damme,Lieven Clarisse,Pierre-François Coheur,Cathy Clerbaux,Cathy Clerbaux,Betty Croft,Randall V. Martin,Jeffrey R. Pierce,Jenny A. Fisher +20 more
TL;DR: In this article, simultaneous enhancements of ammonia (NH3), carbon monoxide (CO), hydrogen cyanide (HCN), and ethane (C2H6) were detected from ground-based solar absorption Fourier transform infrared (FTIR) spectroscopic measurements at two high-Arctic sites.
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Ground-based direct-sun DOAS and airborne MAX-DOAS measurements of the collision-induced oxygen complex, O 2 O 2 , absorption with significant pressure and temperature differences
E. Spinei,E. Spinei,E. Spinei,Alexander Cede,Alexander Cede,Jay R. Herman,Jay R. Herman,George H. Mount,Ed Eloranta,Bruce Morley,Sunil Baidar,Barbara Dix,Ivan Ortega,Theodore K. Koenig,Rainer Volkamer +14 more
TL;DR: In this article, the authors presented ground-based direct-sun (DS) and airborne multi-axis (AMAX) measurements of O2O2 absorption optical depths under actual atmospheric conditions in two wavelength regions (335-390 and 435-490 nm).