DOI: 10.1016/j.atmosres.2018.10.015
Scopus记录号: 2-s2.0-85055503619
论文题名: Ozone and carbon monoxide at the Ushuaia GAW-WMO global station
作者: Adame J.A. ; Cupeiro M. ; Yela M. ; Cuevas E. ; Carbajal G.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2019
卷: 217 起始页码: 1
结束页码: 9
语种: 英语
英文关键词: AIRS instrument
; Carbon monoxide
; Surface ozone
; Ushuaia GAW-WMO global station
Scopus关键词: Carbon monoxide
; Infrared devices
; Infrared instruments
; Ozone
; Surface measurement
; Air mass trajectories
; Atmospheric infrared sounders
; European centre for medium-range weather forecasts
; Meteorological modeling
; Meteorological studies
; Photochemical activity
; Surface ozone
; Ushuaia GAW-WMO global station
; Weather forecasting
; airflow
; AIRS
; atmospheric transport
; carbon monoxide
; ozone
; photochemistry
; spatial distribution
; Antarctic Peninsula
; Antarctica
; Argentina
; Pacific Ocean
; Pacific Ocean (South)
; Southern Ocean
; Tierra del Fuego [(PRV) Argentina]
; Ushuaia
; Weddell Sea
; West Antarctica
英文摘要: Five years (2010–2014) of hourly surface measurements of ozone (O3) and carbon monoxide (CO) at the GAW-WMO station in Ushuaia (Argentina) were analysed and characterised. A meteorological study of the region was carried out using in situ observations and meteorological fields from the ECMWF (European Centre for Medium-Range Weather Forecast) global meteorological model. Atmospheric transport was investigated with the air mass trajectories computed with HYSPLIT (Hybrid Single Particle Lagrangian Integrated Trajectory) model using ERA-Interim meteorological fields. Airflows primarily arise from the W-SW (South Pacific Ocean) which are associated with an almost permanent low pressure system. Collected winds from the South (Antarctic Peninsula and Weddell Sea), polar easterlies, occur less frequently. The hourly averages of O3 and CO were 20 ± 7 ppb and 71 ± 45 ppb, respectively, typical values in remote environments. A clear seasonal pattern was obtained for O3, with a monthly peak in winter of 25 ppb and minimum in summer of 12 ppb. Similar behaviour was found for CO, with 93 and 48 ppb maximum and minimum values, respectively. Both species show a weak daily cycle with an amplitude of 2–4 ppb for O3 and 13–20 ppb for CO. Peaks in O3 and CO in the cold season could be associated with low photochemical activity, fewer destructive processes and transport of these species from the South Pacific. O3 vertical behaviour was analysed using 139 O3 soundings at Ushuaia in the period studied. The seasonal patterns and levels of the O3 profiles from the surface up to 5 km are similar to measurements on surface and thus it can be assumed that the O3 measured on the surface could be representative of the low-mid troposphere. To investigate the spatial distribution of O3 and CO in this region and the spatial representativeness of the Ushuaia measurements, daily observations from the AIRS (Atmospheric Infrared Sounder) instrument on board the AQUA satellite were used. The results obtained show that the O3 levels in Ushuaia could be representative of a wide region in the Pacific South and that the CO levels are representative of a continental region around the observatory. © 2018 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122377
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Atmospheric Research and Instrumentation Branch, National Institute for Aerospace Technology (INTA), Torrejón de Ardoz, Madrid, Spain; Ushuaia GAW Station, National Meteorological Service (SMN), Ushuaia, Argentina; Izaña Atmospheric Research Center, State Meteorological Agency of Spain (AEMET), Santa Cruz de Tenerife, Spain; National Meteorological Service (SMN), Atmospheric Watch and Geophysical (GIDyC – VAYGEO), Buenos Aires, Argentina; Pontificia Universidad Católica Argentina, PEPACG, Facultad de Ingeniería y Ciencias Agrarias, Buenos Aires, Argentina
Recommended Citation:
Adame J.A.,Cupeiro M.,Yela M.,et al. Ozone and carbon monoxide at the Ushuaia GAW-WMO global station[J]. Atmospheric Research,2019-01-01,217