DOI: 10.1002/2017JD027791
Scopus记录号: 2-s2.0-85044313648
论文题名: First Reprocessing of Southern Hemisphere ADditional OZonesondes Profile Records: 3. Uncertainty in Ozone Profile and Total Column
作者: Witte J.C. ; Thompson A.M. ; Smit H.G.J. ; Vömel H. ; Posny F. ; Stübi R.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期: 6 起始页码: 3243
结束页码: 3268
语种: 英语
英文关键词: ozone
; ozonesonde
; SHADOZ
; tropics
Scopus关键词: discontinuity
; mixing ratio
; ozone
; ozonesonde
; partial pressure
; seasonal variation
; Southern Hemisphere
; temperature
; tropical region
; tropopause
; uncertainty analysis
; Asia
英文摘要: Reprocessed ozonesonde data from eight SHADOZ (Southern Hemisphere ADditional OZonesondes) sites have been used to derive the first analysis of uncertainty estimates for both profile and total column ozone (TCO). The ozone uncertainty is a composite of the uncertainties of the individual terms in the ozone partial pressure (PO3) equation, those being the ozone sensor current, background current, internal pump temperature, pump efficiency factors, conversion efficiency, and flow rate. Overall, PO3 uncertainties (ΔPO3) are within 15% and peak around the tropopause (15 ± 3 km) where ozone is a minimum and ΔPO3 approaches the measured signal. The uncertainty in the background and sensor currents dominates the overall ΔPO3 in the troposphere including the tropopause region, while the uncertainties in the conversion efficiency and flow rate dominate in the stratosphere. Seasonally, ΔPO3 is generally a maximum in the March–May, with the exception of SHADOZ sites in Asia, for which the highest ΔPO3 occurs in September–February. As a first approach, we calculate sonde TCO uncertainty (ΔTCO) by integrating the profile ΔPO3 and adding the ozone residual uncertainty, derived from the McPeters and Labow (2012, doi:10.1029/2011JD017006) 1σ ozone mixing ratios. Overall, ΔTCO are within ±15 Dobson units (DU), representing ~5–6% of the TCO. Total Ozone Mapping Spectrometer and Ozone Monitoring Instrument (TOMS and OMI) satellite overpasses are generally within the sonde ΔTCO. However, there is a discontinuity between TOMS v8.6 (1998 to September 2004) and OMI (October 2004–2016) TCO on the order of 10 DU that accounts for the significant 16 DU overall difference observed between sonde and TOMS. By comparison, the sonde-OMI absolute difference for the eight stations is only ~4 DU. ©2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114251
Appears in Collections: 气候减缓与适应
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作者单位: Science Systems and Applications, Inc., Lanham, MD, United States; NASA Goddard Space Flight Center, Greenbelt, MD, United States; Institute of Chemistry and Dynamics of the Geosphere: Troposphere, Research Centre Jülich, Jülich, Germany; Earth Observing Laboratory, National Center for Atmospheric Research, Boulder, CO, United States; Laboratoire de l'Atmosphère et des Cyclones, UMR8105, Université, Météo-France, CNRSLa Réunion, France; Federal Office of Meteorology and Climatology MeteoSwiss, Payerne, Switzerland
Recommended Citation:
Witte J.C.,Thompson A.M.,Smit H.G.J.,et al. First Reprocessing of Southern Hemisphere ADditional OZonesondes Profile Records: 3. Uncertainty in Ozone Profile and Total Column[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(6)