Zobrazeno 1 - 10
of 43
pro vyhledávání: '"L. D. Oman"'
Autor:
A. H. Souri, B. N. Duncan, S. A. Strode, D. C. Anderson, M. E. Manyin, J. Liu, L. D. Oman, Z. Zhang, B. Weir
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 8677-8701 (2024)
The tropospheric hydroxyl (TOH) radical is a key player in regulating oxidation of various compounds in Earth's atmosphere. Despite its pivotal role, the spatiotemporal distributions of OH are poorly constrained. Past modeling studies suggest that th
Externí odkaz:
https://doaj.org/article/fccfb83b5e044818ac31807dec8bf72a
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 2443-2464 (2024)
Satellite observations and ground-based measurements have indicated a high variability in the aerosol optical depth (AOD) in the Middle East region in recent decades. In the period that extends from 2003 to 2012, observations show a positive AOD tren
Externí odkaz:
https://doaj.org/article/879db11244cf4ab5bc96d76aa797a4fc
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 14751-14782 (2022)
Despite decades of effort, the drivers of global long-term trends in tropospheric ozone are not well understood, impacting estimates of ozone radiative forcing and the global ozone budget. We analyze tropospheric ozone trends since 1980 using ozoneso
Externí odkaz:
https://doaj.org/article/8fd94158532e40b8b4aaaf53aacc5140
Autor:
S. A. Strode, G. Taha, L. D. Oman, R. Damadeo, D. Flittner, M. Schoeberl, C. E. Sioris, R. Stauffer
Publikováno v:
Atmospheric Measurement Techniques, Vol 15, Pp 6145-6161 (2022)
We developed a set of solar zenith angle, latitude- and altitude-dependent scaling factors to account for the diurnal variability in ozone (O3) and nitrogen dioxide (NO2) when comparing Stratospheric Aerosol and Gas Experiment (SAGE) III/ISS observat
Externí odkaz:
https://doaj.org/article/6fd110b7072e4a6cbad660fa774f45c2
Autor:
J. R. Ziemke, G. J. Labow, N. A. Kramarova, R. D. McPeters, P. K. Bhartia, L. D. Oman, S. M. Frith, D. P. Haffner
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 6407-6418 (2021)
A new atmospheric ozone profile climatology has been constructed by combining daytime ozone profiles from the Aura Microwave Limb Sounder (MLS) and Modern-Era Retrospective Analysis for Research Applications version 2 (MERRA-2) Global Modeling Initia
Externí odkaz:
https://doaj.org/article/f5bd43f39b8e4b6ca4e89ec788debc63
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 12069-12090 (2021)
Interactions of meteorology with wildfires in British Columbia, Canada, during August 2017 led to three major pyrocumulonimbus (pyroCb) events that resulted in the injection of large amounts of smoke aerosols and other combustion products at the loca
Externí odkaz:
https://doaj.org/article/9c5c271968484b0e903e710f5834553f
Autor:
Y. Tang, H. Bian, Z. Tao, L. D. Oman, D. Tong, P. Lee, P. C. Campbell, B. Baker, C.-H. Lu, L. Pan, J. Wang, J. McQueen, I. Stajner
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 2527-2550 (2021)
The National Air Quality Forecast Capability (NAQFC) operated in the US National Oceanic and Atmospheric Administration (NOAA) provides the operational forecast guidance for ozone and fine particulate matter with aerodynamic diameters less than 2.5
Externí odkaz:
https://doaj.org/article/18ed5b928e1d421580d45a286eb34e83
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 6417-6433 (2020)
In this study we use ozone and stratospheric ozone tracer simulations from the high-resolution (0.5∘×0.5∘) Goddard Earth Observing System, Version 5 (GEOS-5), in a replay mode to study the impact of stratospheric ozone on tropospheric ozone inte
Externí odkaz:
https://doaj.org/article/da1460c08bb2456b93cd533eea82d707
Autor:
M. Abalos, C. Orbe, D. E. Kinnison, D. Plummer, L. D. Oman, P. Jöckel, O. Morgenstern, R. R. Garcia, G. Zeng, K. A. Stone, M. Dameris
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 6883-6901 (2020)
One of the key questions in the air quality and climate sciences is how tropospheric ozone concentrations will change in the future. This will depend on two factors: changes in stratosphere-to-troposphere transport (STT) and changes in tropospheric c
Externí odkaz:
https://doaj.org/article/d3d04a62077f472f9ba4adddb555e1a1
Publikováno v:
Atmospheric Measurement Techniques, Vol 13, Pp 2733-2749 (2020)
Observational studies of stratospheric ozone often involve data from multiple instruments that measure the ozone at different times of day. There has been an increased awareness of the potential impact of the diurnal cycle when interpreting measureme
Externí odkaz:
https://doaj.org/article/3302ceb4710042b89a92eb1850c2c7c7