DOI: 10.1016/j.atmosenv.2014.12.015
Scopus记录号: 2-s2.0-84916885964
论文题名: Ship-based MAX-DOAS measurements of tropospheric NO2 and SO2 in the South China and Sulu Sea
作者: Schreier S ; F ; , Peters E ; , Richter A ; , Lampel J ; , Wittrock F ; , Burrows J ; P
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 102 起始页码: 331
结束页码: 343
语种: 英语
英文关键词: Geometric approximation
; Profile retrieval
; Ship-based MAX-DOAS measurements
; Shipping emissions
; Tropospheric NO2
; Tropospheric SO2
Scopus关键词: Absorption spectroscopy
; Boundary layers
; Geometry
; Light absorption
; Liquids
; Radio communication
; Ships
; Sulfur dioxide
; Troposphere
; Geometric approximations
; MAX-DOAS
; Profile retrieval
; Shipping emissions
; Tropospheric NO
; Tropospheric SO<sub>2</sub>
; Nitrogen oxides
; nitrogen dioxide
; sulfur dioxide
; algorithm
; atmospheric chemistry
; boundary layer
; estimation method
; marine ecosystem
; satellite imagery
; troposphere
; vertical distribution
; absorption spectroscopy
; Article
; atmospheric radioactivity
; atmospheric transport
; boundary layer
; China
; controlled study
; geometry
; liquid
; marine environment
; multi axis differential optical absorption spectroscopy
; radiation attenuation
; radiation measurement
; Raman spectrometry
; remote sensing
; seashore
; ship
; troposphere
; China
; Pacific Ocean
; Sulu Sea
; Bremia
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: In November 2011, ship-based Multi-Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) measurements were performed within the SHIVA campaign on board RV Sonne in the South China and Sulu Sea. Spectral measurements for a total of eleven days could be used to retrieve tropospheric slant column densities (SCDs) of nitrogen dioxide (NO2) and sulfur dioxide (SO2) in the marine environment. The NO2 fit was performed following recommendations developed during the CINDI campaign and adapted for the ship-based measurements. We found that the inclusion of a cross section for liquid water and an empirical correction spectrum accounting for the effects of liquid water and vibrational Raman scattering (VRS) slightly improved the NO2 fit quality, especially at lower elevation angles and for lower NO2 levels. The conversion of SCDs into tropospheric NO2 vertical columns (TVC NO2) has been achieved using both a simple geometric approach and the Bremian advanced MAX-DOAS Retrieval Algorithm (BREAM), which is based on the optimal estimation method and accounts for atmospheric radiative transfer. We found good agreement between the geometric approach using the 15° measurements and BREAM, revealing that measurements at 15° elevation angle can be used for retrieving TVC NO2 in tropical marine environments when SZA is smaller than 75°. As expected, the values of TVC NO2 were generally low (<0.5×1015moleccm-2) when no sources of NOx were in proximity to the RV Sonne. However, we found increased values of TVC NO2 (>2×1015moleccm-2) in the morning when the RV Sonne was heading along the coast of Borneo. This is in good agreement with satellite measurements. The results of the profile retrieval show that the boundary layer values of NO2 are <30pptv in the open and clean tropical marine environment. Interestingly, we also found elevated tropospheric SO2 amounts for measurements taken in a busy shipping lane, consistent with the time series of tropospheric NO2. © 2014 The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82026
Appears in Collections: 气候变化事实与影响
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作者单位: Institute of Environmental Physics, University of Bremen, Germany; Institute for Environmental Physics, University of Heidelberg, Germany
Recommended Citation:
Schreier S,F,, Peters E,et al. Ship-based MAX-DOAS measurements of tropospheric NO2 and SO2 in the South China and Sulu Sea[J]. Atmospheric Environment,2015-01-01,102