Copernicus GmbH
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Quantifying local-scale dust emission from the Arabian Red Sea coastal plainAbstract. Dust plumes emitted from the narrow Arabian Red Sea coastal plain are often observed on satellite images and felt in local population centers. Despite its relatively small area, the coastal plain could be a significant dust source; however, its effect is not well quantified as it is not well approximated in global or even regional models. In addition, because of close proximity t... ... hiện toàn bộ
Copernicus GmbH - Tập 17 Số 2 - Trang 993-1015
Long-term MAX-DOAS measurements of NO<sub>2</sub>, HCHO, and aerosols and evaluation of corresponding satellite data products over Mohali in the Indo-Gangetic PlainAbstract. We present comprehensive long-term ground-based multi-axis differential optical absorption spectroscopy (MAX-DOAS)
measurements of aerosols, nitrogen dioxide (NO2), and formaldehyde
(HCHO) from Mohali (30.667∘ N, 76.739∘ E; ∼310 m above
mean sea level), located in the densely populated Indo-Gangetic Plain (IGP)
of India. We investigate the temporal variation in tropospheric colum... ... hiện toàn bộ
Copernicus GmbH - Tập 20 Số 22 - Trang 14183-14235
Assessment of fire emission inventories during the South American Biomass Burning Analysis (SAMBBA) experimentAbstract. Fires associated with land use and land cover changes release large amounts of aerosols and trace gases into the atmosphere. Although several inventories of biomass burning emissions cover Brazil, there are still considerable uncertainties and differences among them. While most fire emission inventories utilize the parameters of burned area, vegetation fuel load, emission factors... ... hiện toàn bộ
Copernicus GmbH - Tập 16 Số 11 - Trang 6961-6975
Source apportionment of fine organic aerosol in Mexico City during the MILAGRO experiment 2006Abstract. Organic carbon (OC) comprises a large fraction of fine particulate matter (PM2.5) in Mexico City. Daily and select 12-h PM2.5 samples were collected in urban and peripheral sites in Mexico City from 17–30 March 2006. Samples were analyzed for OC and elemental carbon (EC) using thermal-optical filter-based methods. Real-time water-soluble organic carbon (WSOC) was collected at the... ... hiện toàn bộ
Copernicus GmbH - Tập 8 Số 5 - Trang 1249-1259
The distribution and trends of fog and haze in the North China Plain over the past 30 yearsAbstract. Frequent low visibility, haze and fog events were found in the North China Plain (NCP). Data throughout the NCP during the past 30 years were examined to determine the horizontal distribution and decadal trends of low visibility, haze and fog events. The impact of meteorological factors such as wind and relative humidity (RH) on those events was investigated. Results reveal disti... ... hiện toàn bộ
Copernicus GmbH - Tập 14 Số 21 - Trang 11949-11958
Investigations of temporal and spatial distribution of precursors SO<sub>2</sub> and NO<sub>2</sub> vertical columns in the North China Plain using mobile DOASAbstract. Recently, Chinese cities have suffered severe events of haze air pollution, particularly in the North China Plain (NCP). Investigating the temporal and spatial distribution of pollutants, emissions, and pollution transport is necessary to better understand the effect of various sources on air quality. We report on mobile differential optical absorption spectroscopy (mobile DOAS) ... ... hiện toàn bộ
Copernicus GmbH - Tập 18 Số 3 - Trang 1535-1554
Evaluation of tropospheric SO<sub>2</sub> retrieved from MAX-DOAS measurements in Xianghe, ChinaAbstract. Ground-based multi-axis differential optical absorption spectroscopy (MAX-DOAS) measurements of sulfur dioxide (SO2) have been performed at the Xianghe station (39.8° N, 117.0° E) located at ~ 50 km southeast of Beijing from March 2010 to February 2013. Tropospheric SO2 vertical profiles and corresponding vertical column densities (VCDs), retrieved by applying the optimal estimat... ... hiện toàn bộ
Copernicus GmbH - Tập 14 Số 20 - Trang 11149-11164
Projections of air pollutant emissions and its impacts on regional air quality in China in 2020Abstract. Anthropogenic emissions of air pollutants in China influence not only local and regional environments but also the global atmospheric environment; therefore, it is important to understand how China's air pollutant emissions will change and how they will affect regional air quality in the future. Emission scenarios in 2020 were projected using forecasts of energy consumption and e... ... hiện toàn bộ
Copernicus GmbH - Tập 11 Số 7 - Trang 3119-3136
Four years of ground-based MAX-DOAS observations of HONO and NO<sub>2</sub> in the Beijing areaAbstract. Ground-based Multi-Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) measurements of nitrous acid (HONO) and its precursor NO2 (nitrogen dioxide) as well as aerosols have been performed daily in Beijing city centre (39.98° N, 116.38° E) from July 2008 to April 2009 and at the suburban site of Xianghe (39.75° N, 116.96° E) located ~60 km east of Beijing from March 2010 ... ... hiện toàn bộ
Copernicus GmbH - Tập 14 Số 2 - Trang 765-781
Ship-based MAX-DOAS measurements of tropospheric NO<sub>2</sub>, SO<sub>2</sub>, and HCHO distribution along the Yangtze RiverAbstract. In this paper, we present ship-based Multi-Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) measurements of tropospheric trace gases' distribution along the Yangtze River during winter 2015. The measurements were performed along the Yangtze River between Shanghai and Wuhan, covering major industrial areas in eastern China. Tropospheric vertical column densities (VCDs)... ... hiện toàn bộ
Copernicus GmbH - Tập 18 Số 8 - Trang 5931-5951
Tổng số: 477
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