搜索结果: 1-15 共查到“大气化学 Studies”相关记录17条 . 查询时间(0.359 秒)
Optical-chemical-microphysical relationships and closure studies for mixed carbonaceous aerosols observed at Jeju Island; 3-laser photoacoustic spectrometer, particle sizing, and filter analysis
Optical-chemical-microphysical relationships mixed carbonaceous aerosols 3-laser photoacoustic spectrometer particle sizing filter analysis
2010/11/29
Transport of aerosols in pollution plumes from the mainland Asian continent was observed in situ at Jeju, South Korea during the Cheju Asian Brown Cloud Plume-Asian Monsoon Experiment (CAPMEX) field c...
Spectroscopic studies of molecular iodine emitted into the gas phase by seaweed
Spectroscopic studies molecular iodine the gas phase
2010/8/16
Time profiles of molecular iodine emissions from seven species of seaweed have been measured at high time resolution (7.5 s) by direct spectroscopic quantification of the gas phase I2 using broadband ...
Forecasted deep stratospheric intrusions over Central Europe: case studies and climatologies
Forecasted deep stratospheric intrusions Central Europe climatologies
2010/2/1
Based on daily predictions of stratospheric air intrusions, obtained from trajectory calculations by ETH Zürich with wind fields from ECMWF forecasts, a high number of measurements with the ozone lida...
On the representativeness of coastal aerosol studies to open ocean studies: Mace Head – a case study
representativeness coastal aerosol Mace Head
2009/12/31
A unique opportunity arose during the MAP project to compare open ocean aerosol measurements with those undertaken at the Mace Head Global Atmosphere Watch Station, a station used for decades for aero...
Nitric acid and particulate matter measurements at Athens, Greece, in connection with corrosion studies
Nitric acid particulate matter measurements Athens Greece
2009/11/19
For a long time, scientists have been concerned about the effects of air pollution on materials and especially on the monuments of the cultural heritage. The EU funded a project, entitled MULTI-ASSESS...
FTIR spectroscopic studies of the simultaneous condensation of HCl and H2O at 190 K – Atmospheric applications
FTIR spectroscopic study simultaneous condensation HCl H2O Atmospheric applications
2009/3/11
Type II polar stratospheric cloud particles are made up of ice that forms by water vapor condensation in the presence of numerous trace gases, including HCl. These gaseous species can co-condense with...
Organic acids as cloud condensation nuclei：Laboratory studies of highly soluble and insoluble species
Organic acids cloud condensation nuclei soluble and insoluble species
2009/3/10
The ability of sub-micron-sized organic acid particles to act as cloud condensation nuclei (CCN) has been examined at room temperature using a newly constructed continuous-flow, thermal-gradient diffu...
Improved sky imaging for studies of enhanced UV irradiance
sky imaging enhanced UV irradiance
2009/3/10
A recent World Meteorological Organisation report discussed the importance of continued study of the effect of clouds on the solar UV radiation reaching the earth's surface. The report mentions that t...
Longpath DOAS tomography on a motorway exhaust gas plume: numerical studies and application to data from the BAB II campaign
Longpath DOAS tomography motorway exhaust gas plume numerical studies BAB II campaign
2009/3/4
This paper presents a procedure for performing and optimizing inversions for DOAS tomography and its application to measurement data. DOAS tomography is a new technique to determine 2- and 3-dimension...
MAX-DOAS measurements of atmospheric trace gases in Ny-Ålesund - Radiative transfer studies and their application
MAX-DOAS atmospheric trace gases Ny-Å lesund - Radiative
2009/2/27
A new approach to derive tropospheric concentrations of some atmospheric trace gases from ground-based UV/vis measurements is described. The instrument, referred to as the MAX-DOAS, is based on the we...
Laboratory studies of the homogeneous nucleation of iodine oxides
Laboratory homogeneous nucleation iodine oxides
2009/2/20
Laboratory experimental results of iodine oxide nucleation are presented. Nucleation was induced following UV photolysis of CF3I or CH2I2 in the presence of excess ozone. Measurements were performed i...
Iterative maximum a posteriori (IMAP)-DOAS for retrieval of strongly absorbing trace gases: Model studies for CH4 and CO2 retrieval from near infrared spectra of SCIAMACHY onboard ENVISAT
(IMAP)-DOAS trace gases CH4 CO2 infrared spectra SCIAMACHY onboard ENVISAT
2009/1/23
In the past, differential optical absorption spectroscopy (DOAS) has mostly been employed for atmospheric trace gas retrieval in the UV/Vis spectral region. New spectrometers such as SCIAMACHY onboard...
Probing ice clouds by broadband mid-infrared extinction spectroscopy: case studies from ice nucleation experiments in the AIDA aerosol and cloud chamber
Probing ice clouds broadband mid-infrared extinction spectroscopy ice nucleation experiments AIDA aerosol cloud chamber
2009/1/16
Series of infrared extinction spectra of ice crystals were recorded in the 6000–800 cm−1 wavenumber regime during expansion cooling experiments in the large aerosol and cloud chamber AIDA of For...
3-D microphysical model studies of Arctic denitrification: comparison with observations
3-D microphysical model Arctic denitrification
2009/1/14
Simulations of Arctic denitrification using a 3-D chemistry-microphysics transport model are compared with observations for the winters 1994/95, 1996/97 and 1999/2000. The model of Denitrification by ...
Mid-latitude ozone changes: studies with a 3-D CTM forced by ERA-40 analyses
Mid-latitude ozone 3-D CTM ERA-40
2008/12/9
We have used an off-line three-dimensional (3-D) chemical transport model (CTM) to study long-term changes in stratospheric O3. The model was run from 1977–2004 and forced by ECMWF ERA-40 and operatio...