搜索结果: 1-15 共查到“大气科学 quantitative”相关记录16条 . 查询时间(0.125 秒)
A simple technique of measurement of seeing in daytime and nighttime, based upon drift-scan observations,is presented, along with observational examples. This experience can be repeated easily in clas...
Quantitative Techniques for Measuring Cleanroom Wipers with Respect to Airborne Molecular Contamination
Cleanroom Wiper Airborne molecular contamination Particle Ion Nonvolatile residue
2016/3/28
Cleanroom wipers are generally of three classifications, namely, synthetic, natural fibers and blends of fibers. Ultra-fine
split type fiber is mostly selected as the wiper material since cleanrooms ...
Quantitative assessment of upstream source influences on total gaseous mercury observations in Ontario, Canada
upstream source total gaseous mercury Ontario, Canada
2011/2/25
Hourly total gaseous mercury (TGM) concentrations at three monitoring sites (receptors) in Ontario were predicted for four selected periods at different seasons in 2002 using the Stochastic Time-Inver...
Characterisation of individual aerosol particles collected during a haze episode in Incheon, Korea using the quantitative ED-EPMA technique
individual aerosol particles a haze episode Incheon Korea the quantitative ED-EPMA technique
2011/2/25
A quantitative energy-dispersive electron probe X-ray microanalysis (ED-EPMA), called low-Z particle EPMA, was used to analyse individual aerosol particles collected in Incheon, Korea on 13–18 October...
Source apportionment of PM2.5 in Cork Harbour, Ireland using a combination of single particle mass spectrometry and quantitative semi-continuous measurements
Cork Harbour single particle mass spectrometry quantitative semi-continuous measurements
2010/10/21
An aerosol time-of-flight mass spectrometer (ATOFMS) was deployed for the measurement of the size resolved chemical composition of single particles at a site in Cork Harbour, Ireland for three weeks i...
Quantitative estimates of the volatility of ambient organic aerosol
ambient organic aerosol a tandem thermodenuder-aerosol mass spectrometer system Mexico City
2010/8/13
Measurements of the sensitivity of organic aerosol (OA, and its components) mass to changes in temperature were recently reported by Huffman et al.~(2009) using a tandem thermodenuder-aerosol mass spe...
Quantitative assessment of Southern Hemisphere ozone in chemistry-climate model simulations
Quantitative assessment Southern Hemisphere ozone chemistry-climate model
2010/2/21
Stratospheric ozone recovery in the Southern Hemisphere is expected to drive pronounced trends in atmospheric temperature and circulation from the stratosphere to the troposphere in the 21st century; ...
Comment on "Quantitative performance metrics for stratospheric-resolving chemistry-climate models" by Waugh and Eyring (2008)
Quantitative performance metrics stratospheric-resolving chemistry-climate models Waugh Eyring
2009/12/3
This comment focuses on the statistical limitations of a model grading, as applied by D. Waugh and V. Eyring (2008) (WE08). The grade g is calculated for a specific diagnostic, which basically relates...
Application of the LEPS technique for Quantitative Precipitation Forecasting (QPF) in Southern Italy:a preliminary study
LEPS technique Quantitative Precipitation Forecasting Southern Italy preliminary study
2009/11/9
This paper reports preliminary results for a Limited area model Ensemble Prediction System (LEPS), based on RAMS (Regional Atmospheric Modelling System), for eight case studies of moderate-intense pre...
Quantitative assessment of organosulfates in size-segregated rural fine aerosol
Quantitative assessment organosulfates size-segregated rural fine aerosol
2009/3/12
Organosulfates have recently come into the focus of organic aerosol research as potentially important components of water-soluble secondary organic aerosol (SOA) which now dominate tropospheric fine a...
A quantitative test of infrared optical constants for supercooled sulphuric and nitric acid droplet aerosols
infrared optical constants sulphuric and nitric acid droplet aerosols
2009/3/11
In situ Fourier transform infrared (FTIR) extinction spectra of supercooled H2SO4/H2O and HNO3/H2O solution droplets were recorded in the large coolable aerosol chamber AIDA (Aerosol Interactions and ...
A quantitative analysis of grid-related systematic errors in oxidising capacity and ozone production rates in chemistry transport models
grid-related systematic errors oxidising capacity ozone production rates chemistry transport models
2009/3/5
Limited resolution in chemistry transport models (CTMs) is necessarily associated with systematic errors in the calculated chemistry, due to the artificial mixing of species on the scale of the model ...
The quantitative infrared and NIR spectrum of CH2I2 vapor: vibrational assignments and potential for atmospheric monitoring
quantitative infrared and NIR spectrum CH2I2 vapor potential for atmospheric monitoring
2009/1/12
Diiodomethane (CH2I2) has recently become a molecule of significant atmospheric interest as it can contribute to coastal IO formation. As part of the PNNL database of gas-phase infrared spectra, the q...
The effect of systematic measurement errors on atmospheric CO2 inversions: a quantitative assessment
systematic measurement errors atmospheric CO2 inversions quantitative assessment
2008/12/30
Surface-atmosphere exchange fluxes of CO2, estimated by an interannual atmospheric transport inversion from atmospheric mixing ratio measurements, are affected by several sources of errors, one of whi...
Technical Note: Quantitative long-term measurements of VOC concentrations by PTR-MS – measurement, calibration, and volume mixing ratio calculation methods
VOC PTR-MS volume mixing ratio
2008/11/26
Proton transfer reaction mass spectrometry (PTR-MS) is a technique for online measurements of atmospheric concentrations, or volume mixing ratios, of volatile organic compounds (VOCs). This paper giv...