TRANSFER OF ATMOSPHERIC CONSTITUENTS INTO AN ALPINE SNOW FIELD

被引:30
作者
BALTENSPERGER, U
SCHWIKOWSKI, M
GAGGELER, HW
JOST, DT
BEER, J
SIEGENTHALER, U
WAGENBACH, D
HOFMANN, HJ
SYNAL, HA
机构
[1] SWISS FED INST TECHNOL,EAWAG,INST AQUAT SCI & WATER POLLUT,CH-8006 ZURICH,SWITZERLAND
[2] SWISS FED INST TECHNOL,INST MEDIUM ENERGY PHYS IMP,CH-8093 ZURICH,SWITZERLAND
[3] UNIV BERN,INST PHYS,CH-3012 BERN,SWITZERLAND
[4] UNIV HEIDELBERG,INST UMWELTPHYS,W-6900 HEIDELBERG,GERMANY
来源
ATMOSPHERIC ENVIRONMENT PART A-GENERAL TOPICS | 1993年 / 27卷 / 12期
关键词
ALPINE; BACKGROUND AEROSOL; DEPOSITION; SCAVENGING; SNOW; WEISSFLUHJOCH; BE-10; CL-36; PB-210; DELTA-O-18;
D O I
10.1016/0960-1686(93)90293-8
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Simultaneous aerosol and snow sampling was performed during a field campaign at the Alpine site Weissfluhjoch Davos, Switzerland (2540 m a.s.l.) from 1 January through 30 March 1988. In addition, a snow pit was sampled on 30 March 1988. Very good agreement between the new snow and pit snow samples was found for the measured major ions as well as for the stable isotopes deltaO-18 and deltaD. Thus, snow pit samples obtained at this site during the winter months yield representative deposition patterns with a conserved stratigraphy. Generally, concentrations in snow were very low, with 3.5, 8.5, 5.2 and 2.4 mueq l-1 for Cl-, NO3-, SO42- and NH4+, respectively. The Cl-36 and Be-10 concentrations as well as the Be-10/Cl-36 ratios were comparable to the ones measured at Arctic sites. With the exception of NO3-, no linear relation was obtained between atmospheric and snow concentrations, showing that the concept of scavenging ratios must be used with caution when looking at single snowfall events. The following precipitation-weighted mean scavenging ratios were found: 300 for NH4+, 350 for SO42-, 940 for total NO3- (NO3- + HNO3), 175 for Pb-210, and 750 for Be-10.
引用
收藏
页码:1881 / 1890
页数:10
相关论文
共 52 条
[51]   PERSPECTIVES ON AEROSOL DEPOSITION TO NATURAL SURFACES INTERACTIONS BETWEEN AEROSOL RESIDENCE TIMES, REMOVAL PROCESSES, THE BIOSPHERE AND GLOBAL ENVIRONMENTAL-CHANGE [J].
WIMAN, BLB ;
UNSWORTH, MH ;
LINDBERG, SE ;
BERGKVIST, B ;
JAENICKE, R ;
HANSSON, HC .
JOURNAL OF AEROSOL SCIENCE, 1990, 21 (03) :313-338
[52]   AEROSOL AND HYDROMETEOR CONCENTRATIONS AND THEIR CHEMICAL-COMPOSITION DURING WINTER PRECIPITATION ALONG A MOUNTAIN SLOPE .2. ENHANCEMENT OF BELOW-CLOUD SCAVENGING IN A STABLY STRATIFIED ATMOSPHERE [J].
ZINDER, B ;
SCHUMANN, T ;
WALDVOGEL, A .
ATMOSPHERIC ENVIRONMENT, 1988, 22 (12) :2741-2750