搜索结果: 1-13 共查到“大气化学 snow”相关记录13条 . 查询时间(0.031 秒)
Bromide and other ions in the snow, firn air, and atmospheric boundary layer at Summit during GSHOX
Bromide and other ions atmospheric boundary layer Summit GSHOX
2010/10/21
Measurements of gas phase soluble bromide in the boundary layer and in firn air, and Br− in aerosol and snow, were made at Summit, Greenland (72.5° N, 38.4° W, 3200 m a.s.l.) as part of a larger...
Snow-sourced bromine and its implications for polar tropospheric ozone
Snow-sourced bromine polar tropospheric ozone
2010/8/25
In the last two decades, significant depletion of boundary layer ozone (ozone depletion events, ODEs) has been observed in both Arctic and Antarctic spring. ODEs are attributed to catalytic destructio...
Photolysis imprint in the nitrate stable isotope signal in snow and atmosphere of East Antarctica and implications for reactive nitrogen cycling
nitrate stable isotope signal snow atmosphere East Antarctica reactive nitrogen cycling
2009/11/19
The nitrogen (δ15N) and triple oxygen (δ17O and δ18O) isotopic composition of nitrate (NO3−) was measured year-round in the atmosphere and snow pits at Dome C, Antarctica (DC, 75.1° S, 123.3° E)...
Aerosol size-dependent below-cloud scavenging by rain and snow in the ECHAM5-HAM
size-dependent below-cloud scavenging rain snow ECHAM5-HAM
2009/7/23
Wet deposition processes are highly efficient in the removal of aerosols from the atmosphere, and thus strongly influence global aerosol concentrations, and clouds, and their respective radiative forc...
Contrasting atmospheric boundary layer chemistry of methylhydroperoxide（CH3OOH）and hydrogen peroxide（H2O2）above polar snow
atmospheric boundary layer chemistry CH3OOH H2O2 polar snow
2009/6/2
Atmospheric hydroperoxides (ROOH) were measured at Summit, Greenland (72.97° N, 38.77° W) in summer 2003 (SUM03) and spring 2004 (SUM04) and South Pole in December 2003 (SP03). The two dominant hydrop...
Distribution of VOCs between air and snow at the Jungfraujoch high alpine research station, Switzerland, during CLACE 5（winter 2006）
VOCs air snow Jungfraujoch high alpine research station
2009/6/2
Volatile organic compounds (VOCs) were analyzed in air and snow samples at the Jungfraujoch high alpine research station in Switzerland as part of CLACE 5 (CLoud and Aerosol Characterization Experimen...
The origin of sea salt in snow on Arctic sea ice and in coastal regions
sea salt snow Arctic sea ice coastal regions
2009/3/10
Snow, through its trace constituents, can have a major impact on lower tropospheric chemistry, as evidenced by ozone depletion events (ODEs) in oceanic polar areas. These ODEs are caused by the chemis...
Distinction between clouds and ice/snow covered surfaces in the identification of cloud-free observations using SCIAMACHY PMDs
clouds ice/snow covered surfaces cloud-free SCIAMACHY PMDs
2009/2/18
SCIAMACHY on ENVISAT allows measurement of different trace gases including those most abundant in the troposphere (e.g. CO2, NO2, CH4, BrO, SO2). However, clouds in the observed scenes can severely hi...
Iodine and bromine speciation in snow and the effect of orographically induced precipitation
Iodine bromine speciation induced precipitation
2008/12/10
Iodine is an essential trace element for all mammals and may also influence climate through new aerosol formation. Atmospheric bromine cycling is also important due to its well-known ozone depletion c...
Iodine and bromine speciation in snow and the effect of orographically induced precipitation
Iodine bromine speciation orographically induced precipitation
2008/12/10
Iodine is an essential trace element for all mammals and may also influence climate through new aerosol formation. Atmospheric bromine cycling is also important due to its well-known ozone depletion c...
This paper presents a systematic way to examine the origin of variety in falling snow. First, we define shape diversity as the logarithm of the number of possible distinguishable crystal forms for a g...
Chemistry of the Antarctic Boundary Layer and the Interface with Snow: an overview of the CHABLIS campaign
Antarctic Boundary Layer CHABLIS campaign
2008/11/13
CHABLIS (Chemistry of the Antarctic Boundary Layer and the Interface with Snow) was a collaborative UK research project aimed at probing the detailed chemistry of the Antarctic boundary layer and the ...
The potential importance of frost flowers, recycling on snow, and open leads for ozone depletion events
frost flowers open leads ozone depletion events
2008/11/6
We present model studies with the one-dimensional model MISTRA to investigate the potential role of frost flowers, recycling on snow, and open leads in the depletion of tropospheric ozone in the Arcti...
