搜索结果: 46-60 共查到“理学 NOx”相关记录107条 . 查询时间(0.14 秒)
Evolution of NOx emissions in Europe with focus on road transport control measures
NOx emissions Europe road transport control measures
2009/3/13
European emission trends of nitrogen oxides since 1880 and up to present are presented here and are linked to the evolution of road transport emissions. Road transport has been the dominating source o...
Sensitivity of satellite observations for freshly produced lightning NOx
Sensitivity satellite observations lightning NOx
2009/3/13
In this study, we analyse the sensitivity of nadir viewing satellite observations in the visible range to freshly produced lightning NOx. This is a particular challenge due to the complex and highly v...
Investigation of NOx emissions and NOx-related chemistry in East Asia using CMAQ-predicted and GOME-derived NO2 columns
NOx emissions NOx-related chemistry East Asia NO2 columns
2009/3/13
In this study, NO2 columns from the US EPA Models-3/CMAQ model simulations carried out using the 2001 ACE-ASIA (Asia Pacific Regional Aerosol Characterization Experiment) emission inventory over East ...
Effect of water addition and nitrogen fertilization on the fluxes of CH4, CO2, NOx, and N2O following five years of elevated CO2 in the Colorado Shortgrass Steppe
nitrogen fertilization CH4 CO2 NOx N2O Colorado Shortgrass Steppe
2009/3/11
An open-top-chamber (OTC) CO2 enrichment (~720 mmol mol-1) study was conducted in the Colorado shortgrass steppe from April 1997 through October 2001. Aboveground plant biomass increased under elevate...
Evaluated kinetic and photochemical data for atmospheric chemistry: Volume I - gas phase reactions of Ox, HOx, NOx and SOx species
Evaluated kinetic atmospheric chemistry gas phase reactions
2009/3/5
This article, the first in the series, presents kinetic and photochemical data evaluated by the IUPAC Subcommittee on GasKinetic Data Evaluation for Atmospheric Chemistry. It covers the gas phase and ...
Technical Note: A diagnostic for ozone contributions of various NOx emissions in multi-decadal chemistry-climate model simulations
ozone contributions various NOx emissions multi-decadal chemistry-climate model
2009/2/26
Nitrogen oxide (NOx=NO+NO2) emissions from various sources contribute to the ozone budget. The identification of these contributions is important, e.g. for the assessment of emissions from traffic. Th...
Effects of various meteorological conditions and spatial emissionresolutions on the ozone concentration and ROG/NOx limitationin the Milan area (I)
various meteorological condition spatial emissionresolution ROG/NOx Milan area (I)
2009/2/23
The three-dimensional photochemical model UAM-V is used to investigate the effects of various meteorological conditions and of the coarseness of emission inventories on the ozone concentration and ROG...
Technical note: A stratospheric climatology for O3, H2O, CH4, NOx, HCl and HF derived from HALOE measurements
stratospheric climatology O3 HF HALOE measurements
2009/2/18
The Halogen Occultation Experiment (HALOE) on board the Upper Atmosphere Research Satellite (UARS) has observed mixing ratios of important trace species in the stratosphere for more than a decade sinc...
Assessment of the reduction methods used to develop chemical schemes: building of a new chemical scheme for VOC oxidation suited to three-dimensional multiscale HOx-NOx-VOC chemistry simulations
chemical schemes VOC oxidation three-dimensional multiscale HOx-NOx-VOC chemistry simulations
2009/2/17
The objective of this work was to develop and assess an automatic procedure to generate reduced chemical schemes for the atmospheric photooxidation of volatile organic carbon (VOC) compounds. The proc...
Estimates of lightning NOx production from GOME satellite observations
lightning NOx production GOME satellite
2009/2/17
Tropospheric NO2 column retrievals from the Global Ozone Monitoring Experiment (GOME) satellite spectrometer are used to quantify the source strength and 3-D distribution of lightning produced nitroge...
The effects of lightning-produced NOx and its vertical distribution on atmospheric chemistry: sensitivity simulations with MATCH-MPIC
lightning-produced NOx vertical distribution atmospheric chemistry MATCH-MPIC
2009/2/12
The impact of different assumptions concerning the source magnitude as well as the vertical placement of lightning-produced nitrogen oxides is studied using the global chemistry transport model MATCH-...
Inversion of CO and NOx emissions using the adjoint of the IMAGES model
CO NOx emissions adjoint IMAGES model
2009/2/9
We use ground-based observations of CO mixing ratios and vertical column abundances together with tropospheric NO2 columns from the GOME satellite instrument as constraints for improving the global an...
采用程序升温氨脱附、程序升温还原和X射线光电子能谱分析手段表征了加入WO3前后CeO2-ZrO2颗粒催化剂的表面性能变化. 结果表明,WO3一方面增加了催化剂的酸性,另一方面略微提高了催化剂的氧化还原性能. 在氨选择性催化还原氮氧化物反应中,当NH3/NO=1, 空速为90000h-1的条件下, CeO2-ZrO2催化剂上氮氧化物转化率低于65%, 而10%WO3/CeO2-ZrO2催化剂催化活性...
Regional lightning NOx sources during the TROCCINOX experiment
NOx sources TROCCINOX experiment
2009/1/22
A lightning NOx (LiNOx) source has been implemented in the deep convection scheme of the Meso-NH mesoscale model following a mass-flux formalism coherent with the transport and scavenging of gases ins...
Vertical profiles of O3 and NOx chemistry in the polluted nocturnal boundary layer in Phoenix, AZ: I. Field observations by long-path DOAS
Vertical profiles O3 NOx chemistry polluted nocturnal boundary layer Phoenix ong-path DOAS
2009/1/12
Nocturnal chemistry in the atmospheric boundary layer plays a key role in determining the initial chemical conditions for photochemistry during the following morning as well as influencing the budgets...