搜索结果: 1-15 共查到“大气科学 the environment”相关记录30条 . 查询时间(0.093 秒)
水稻作为全球重要的粮食作物之一，在保障粮食安全和促进农村经济发展中发挥着关键作用。因此，准确及时的水稻制图对相关政策制定至关重要，以应对人为、环境和气候变化带来的挑战。与传统田间调查相比，卫星遥感在水稻制图和监测方面具有大面积覆盖、及时监测和低成本等独特优势，已成为水稻监测制图的主要技术手段。目前，水稻遥感制图方法主要有三种，基于分类器、基于物候和基于指数方法。基于分类器的方法是最常用的，但这些数...
Mercury Emissions from a Coal-Fired Power Plant and Their Impact on the Nearby Environment
Mercury Coal-fired power plant Emission factor Atmospheric emission
2016/3/25
This study investigated Hg emissions from a coal-fired power plant (CFPP) and their impact on the nearby environment.
Atmospheric Hg concentrations were measured at sampling sites near a CFPP located...
Characteristics of Atmospheric Elemental Carbon (Char and Soot) in Ultrafine and Fine Particles in a Roadside Environment, Japan
Black carbon (BC) Ultrafine particles Char-EC Soot-EC Diesel exhausts
2016/3/28
Atmospheric carbonaceous components, particularly char and soot in ultrafine particles (UFPs; Dp < 0.1 m) and fine
particles (FPs; Dp < 2.5 m), were measured four times during one...
Mediterranean hurricanes: large-scale environment and convective and precipitating areas from satellite microwave observations
Mediterranean hurricanes large-scale environment convective precipitating areas satellite microwave observations
2011/1/19
Subsynoptic scale vortices that have been likened to tropical cyclones or polar lows (medicanes) are occasionally observed over the Mediterranean Sea. Generated over the sea, they are usually associat...
Nanoparticles in boreal forest and coastal environment: a comparison of observations and implications of the nucleation mechanism
Nanoparticles boreal forest coastal environment the nucleation mechanism
2010/8/16
The detailed mechanism of secondary new particle formation in the atmosphere is still under debate. It is proposed that particle formation happens via activation of 1–2 nm atmospheric neutral molecula...
Ozone reservoir layers in a coastal environment – a case study in southern Taiwan
Ozone reservoir layers a coastal environment southern Taiwan
2010/8/12
The air layer between the nocturnal boundary layer and the top of the daily mixing layer in an ozone-polluted area is known to serve as an ozone reservoir since the ozone that is produced in the mixin...
NO3 radical measurements in a polluted marine environment: links to ozone formation
NO3 radical measurements a polluted marine environment ozone formation
2010/8/12
Nighttime chemistry in polluted regions is dominated by the nitrate radical (NO3) including its direct reaction with natural and anthropogenic hydrocarbons, its reaction with NO2 to form N2O5, and sub...
Analysis of Relationship between Inorganic Gases and Fine Particles in Cleanroom Environment
Diffusion denuder system (DDS) AMCs (Airborne Molecular Contaminants) Micro-contamination Cleanroom
2016/3/29
The concentrations and characteristics of major components in inorganic gases and fine particles were measured at the
photo and etch cleanroom areas in a Taiwan semiconductor factory. The results sho...
The exchange of SVOCs across the air-sea interface in Singapore's coastal environment
SVOCs air-sea interface Singapore's coastal environment
2010/2/21
Coastal areas are vulnerable to the accumulation of semivolatile organic compounds, such as PAHs, OCPs and PCBs from atmospheric inputs. Dry particulate and wet depositions, and air-water diffusive ex...
An investigation of nucleation events in a coastal urban environment in the Southern Hemisphere
nucleation events coastal urban environment Southern Hemisphere
2009/11/9
Ambient aerosols play an important role in atmospheric processes affecting the human and natural environments. They affect air quality, reduce visibility, and induce climate change by directly scatter...
A Comparative Study of Air Quality Index Based on Factor Analysis and US-EPA Methods for an Urban Environment
Eclipsing effect Maximum operator concept (MOC) Principal component analysis (PCA) Variance, Ranking
2016/3/29
There are many different air quality indexes, which represent the global urban air pollution situation.
Although the index proposed by USEPA gives an overall assessment of air quality, it does not in...
Source Apportionment of Atmospheric Dust Fallout in an Urban-Industrial Environment in India
Source apportionment Dusts fallout Chemical mass balance Urban areas
2016/3/29
The components and quantities of atmospheric dusts fallout has been reported to be the pollution indicator of large urban areas. The
multiplicity and complexity of sources of atmospheric dusts in urb...
Ozone Monitoring Instrument spectral UV irradiance products: comparison with ground based measurements at an urban environment
Ozone Monitoring Instrument spectral UV irradiance products urban environment
2009/3/12
We have compared spectral ultraviolet overpass irradiances from the Ozone Monitoring Instruments (OMI) against ground-based Brewer measurements at Thessaloniki, Greece from September 2004 to December ...
The characterisation of pollution aerosol in a changing photochemical environment
pollution aerosol changing photochemical environment
2009/1/22
Measurements are presented from a sampling location 50 km downwind of Greater London, UK, to investigate the timescales required for the atmospheric transformations of aerosol in urban emissions plume...
Processing of soot in an urban environment: case study from the Mexico City Metropolitan Area
Processing of soot urban environment Mexico City Metropolitan Area
2009/1/14
Chemical composition, size, and mixing state of atmospheric particles are critical in determining their effects on the environment. There is growing evidence that soot aerosols play a particularly imp...