標題: UV Absorption Cross Sections of ClOOCl Are Consistent with Ozone Degradation Models
作者: Chen, Hsueh-Ying
Lien, Chien-Yu
Lin, Wei-Yen
Lee, Yuan T.
Lin, Jim J.
應用化學系
Department of Applied Chemistry
公開日期: 8-五月-2009
摘要: Recently, discrepancies in laboratory measurements of chlorine peroxide (ClOOCl) absorption cross sections have cast doubt on the validity of current photochemical models for stratospheric ozone degradation. Whereas previous ClOOCl absorption measurements all suffered from uncertainties due to absorption by impurities, we demonstrate here a method that uses mass-selected detection to circumvent such interference. The cross sections of ClOOCl were determined at two critical wavelengths (351 and 308 nanometers). Our results are sufficient to resolve the controversial issue originating from the ClOOCl laboratory cross sections and suggest that the highest laboratory estimates for atmospheric photolysis rates of ClOOCl, which best explain the field measurements via current chemical models, are reasonable.
URI: http://dx.doi.org/10.1126/science.1171305
http://hdl.handle.net/11536/7238
ISSN: 0036-8075
DOI: 10.1126/science.1171305
期刊: SCIENCE
Volume: 324
Issue: 5928
起始頁: 781
結束頁: 784
顯示於類別:期刊論文


文件中的檔案:

  1. 000265832400045.pdf

若為 zip 檔案,請下載檔案解壓縮後,用瀏覽器開啟資料夾中的 index.html 瀏覽全文。