Snowpack photochemical production of HONO: a major source of OH in the Arctic boundary layer in springtime

被引:206
作者
Zhou, XL
Beine, HJ
Honrath, RE
Fuentes, JD
Simpson, W
Shepson, PB
Bottenheim, JW
机构
[1] New York State Dept Hlth, Wadsworth Ctr Labs & Res, Albany, NY 12201 USA
[2] Michigan Technol Univ, Dept Civil & Environm Engn, Houghton, MI USA
[3] Meteorol Serv Canada, Downsview, ON, Canada
[4] Univ Virginia, Dept Environm Sci, Charlottesville, VA USA
[5] Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA
[6] Purdue Univ, Dept Earth, W Lafayette, IN 47907 USA
[7] Purdue Univ, Dept Atmospher Sci, W Lafayette, IN 47907 USA
[8] Univ Alaska Fairbanks, Dept Chem, Fairbanks, AK USA
[9] SUNY Albany, New York State Dept Hlth, Sch Publ Hlth, Albany, NY 12201 USA
关键词
D O I
10.1029/2001GL013531
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Both snow manipulation experiments and ambient measurements during the Polar Sunrise Experiment 2000 at Alert (Alert2000) indicate intensive photochemical production of nitrous acid (HONO) in the snowpack. This process constitutes a major HONO source for the overlying atmospheric boundary layer in the Arctic during the springtime, and sustained concentrations of HONO high enough that upon photolysis they became the dominant hydroxyl radical (OH) source. This implies a much greater role for OH radicals in Arctic polar sunrise chemistry than previously believed. Although the observations were made in the high Arctic, this finding has a significant implication for the boundary layer atmospheric chemistry in Antarctica during sunlit seasons and in the mid to high latitudes of the Northern Hemisphere during the winter and spring seasons when approximately 50% of the land mass may be covered by snow.
引用
收藏
页码:4087 / 4090
页数:4
相关论文
共 18 条
[1]  
Atkinson R., 1996, ATMOS ENVIRON, V30, P3903
[2]   OZONE DESTRUCTION AND PHOTOCHEMICAL-REACTIONS AT POLAR SUNRISE IN THE LOWER ARCTIC ATMOSPHERE [J].
BARRIE, LA ;
BOTTENHEIM, JW ;
SCHNELL, RC ;
CRUTZEN, PJ ;
RASMUSSEN, RA .
NATURE, 1988, 334 (6178) :138-141
[3]  
BEINE HJ, 2001, UNPUB ATMOS ENV
[4]  
EISELE FL, 1999, EOS T AGU, V80, pF158
[5]   The role of Br2 and BrCl in surface ozone destruction at polar sunrise [J].
Foster, KL ;
Plastridge, RA ;
Bottenheim, JW ;
Shepson, PB ;
Finlayson-Pitts, BJ ;
Spicer, CW .
SCIENCE, 2001, 291 (5503) :471-474
[6]   Ambient biogenic hydrocarbons and isoprene emissions from a mixed deciduous forest [J].
Fuentes, JD ;
Wang, D ;
Neumann, HH ;
Gillespie, TJ ;
DenHartog, G ;
Dann, TF .
JOURNAL OF ATMOSPHERIC CHEMISTRY, 1996, 25 (01) :67-95
[7]   Photochemical production of gas phase NOx from ice crystal NO-3 [J].
Honrath, RE ;
Guo, S ;
Peterson, MC ;
Dziobak, MP ;
Dibb, JE ;
Arsenault, MA .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2000, 105 (D19) :24183-24190
[8]   Evidence of NOx production within or upon ice particles in the Greenland snowpack [J].
Honrath, RE ;
Peterson, MC ;
Guo, S ;
Dibb, JE ;
Shepson, PB ;
Campbell, B .
GEOPHYSICAL RESEARCH LETTERS, 1999, 26 (06) :695-698
[9]  
HUANG G, 2001, UNPUB ATMOS ENV