搜索结果: 1-15 共查到“大气科学 O3”相关记录52条 . 查询时间(0.093 秒)
对流层O3是前体物NOx与VOCs在太阳辐射下发生光化学反应生成的二次污染物，对气候变化、生态系统、人体健康有着重要的影响。珠三角地区作为人口密度高、经济发展迅速的超大城市群，2023年来该地区的MDA8 O3仍处于增长态势，O3超标日数也在逐年增加，在秋季O3区域污染事件频发。局地O3浓度受前体物源排放、气象条件及其主导的区域传输共同影响，厘清O3的源-受体之间的关系，更全面了解排放源和区域传输...
北京城区夏季O3化学生成过程
臭氧 臭氧生成速率 臭氧生成效率 光化学箱模式
2013/11/11
选取2007年7月1日—8月31日中的21个晴空日,利用观测资料和光化学箱模式计算了北京城区测点的O3生成速率G(O3)和O3生成效率OPE.结果表明,21个晴空日中G(O3)日最高小时值分布在(18~82)×10-9h-1之间;在O3污染和非污染日G(O3)最高值的平均水平无显著差异,且与Ox浓度之间不存在一致的对应关系,表明O3化学生成过程不能全面解释地面O3浓度的累积,物理传输过程对测点O3...
利用1992年9月～2005年8月的HALOE资料,对我国低纬高原地区上空平流层中NOx,O3等大气痕量气体的混合比垂直变化进行了研究,并对本区域不同高度上NOx混合比与全球同纬度进行了比较,同时对NOx随时间的演变特征,NOx的变化周期及NOx与O3的相关关系进行了分析.结果表明:①NOx,O3混合比先随高度增加,到极值时又逐渐减小;在极值高度上,各个季节NOx,O3的混合比值都是夏季最高,冬季...
Results from a new linear O3 scheme with embedded heterogeneous chemistry compared with the parent full-chemistry 3-D CTM
a new linear O3 scheme embedded heterogeneous chemistry the parent full-chemistry 3-D CTM
2011/2/25
A detailed full-chemistry 3-D chemistry and transport model (CTM) is used to evaluate the current stratospheric O3 parameterisation in the European Centre for Medium-Range Weather Forecasts (ECMWF) mo...
NOx and O3 above a tropical rainforest: an analysis with a global and box model
a tropical rainforest a global and box model NOx O3
2010/11/30
A cross-platform field campaign, OP3, was conducted in the state of Sabah in Malaysian Borneo between April and July of 2008. Among the suite of observations recorded, the campaign included measuremen...
Response of tropical stratospheric O3, NO2 and NO3 to the equatorial Quasi-Biennial Oscillation and to temperature as seen from GOMOS/ENVISAT
tropical stratospheric O3, NO2 and NO3 the equatorial Quasi-Biennial Oscillation temperature GOMOS/ENVISAT
2010/9/21
Quasi-Biennial Oscillation signals can be found in the evolution of the three constituents up to at least 40 km. We found that NO3 is positively correlated with temperature up to 45 km in the region w...
The Global Ozone Monitoring by Occultation of Stars (GOMOS) instrument onboard the European Space Agency's ENVISAT satellite measures ozone, NO2, NO3, H2O, O2, and aerosols using the stellar occultati...
In situ measurements of molecular iodine in the marine boundary layer: the link to macroalgae and the implications for O3, IO, OIO and NOx
molecular iodine the marine boundary layer macroalgae the implications for O3, IO, OIO and NOx
2010/8/13
Discrete in situ atmospheric measurements of molecular iodine (I2) were carried out at Mace Head and Mweenish Bay on the west coast of Ireland using diffusion denuders in combination with a gas chroma...
Winter- and summertime continental influences on tropospheric O3 and CO observed by TES over the western North Atlantic Ocean
Winter- and summertime continental influences tropospheric O3 and CO TES the western North Atlantic Ocean
2010/8/12
The distributions of tropospheric ozone (O3) and carbon monoxide (CO), and the synoptic factors regulating these distributions over the western North Atlantic Ocean during winter and summer were inves...
Tracer measurements in the tropical tropopause layer during the AMMA/SCOUT-O3 aircraft campaign
Tracer measurements the tropical tropopause layer the AMMA/SCOUT-O3 aircraft campaign
2010/8/12
We present airborne in situ measurements made during the AMMA (African Monsoon Multidisciplinary Analysis)/SCOUT-O3 campaign between 31 July and 17 August 2006 on board the M55 Geophysica aircraft, ba...
Eta-CMAQ air quality forecasts for O3 and related species using three different photochemical mechanisms (CB4, CB05, SAPRC-99): comparisons with measurements during the 2004 ICARTT study
Eta-CMAQ air quality forecasts three different photochemical mechanisms the 2004 ICARTT study
2010/8/12
A critical module of air quality models is the photochemical mechanism. In this study, the impact of the three photochemical mechanisms (CB4, CB05, SAPRC-99) on the Eta-Community Multiscale Air Qualit...
Midlatitude stratosphere – troposphere exchange as diagnosed by MLS O3 and MOPITT CO assimilated fields
Midlatitude stratosphere troposphere exchange MLS O3 MOPITT CO assimilated fields
2010/3/5
This paper presents a comprehensive characterization of a very deep stratospheric intrusion which occurred over the British Isles on 15 August 2007. The signature of this event is diagnosed using ozon...
Source-receptor relationships for airborne measurements of CO2, CO and O3 above Siberia: a cluster-based approach
Source-receptor relationships airborne measurements Siberia
2010/2/21
We analysed results of three intensive aircraft campaigns above Siberia (April and September 2006, August 2007) with a total of ~70 h of continuous CO2, CO and O3 measurements. The flight route consis...
Kinetic double-layer model of aerosol surface chemistry and gas-particle interactions (K2-SURF): Degradation of polycyclic aromatic hydrocarbons exposed to O3, NO2, H2O, OH and NO3
Kinetic double-layer model aerosol surface chemistry gas-particle interactions K2-SURF
2009/12/31
We present a kinetic double-layer surface model (K2-SURF) that describes the degradation of polycyclic aromatic hydrocarbons (PAHs) on aerosol particles exposed to ozone, nitrogen dioxide, water vapor...
NOx production by lightning in Hector: first airborne measurements during SCOUT-O3/ACTIVE
lightning Hector SCOUT-O3/ACTIVE
2009/11/19
During the SCOUT-O3/ACTIVE field phase in November–December 2005, airborne in situ measurements were performed inside and in the vicinity of thunderstorms over northern Australia with several research...