Abstract. Air quality networks in cities can be costly and inconsistent typically monitor a few pollutants. Space-based instruments provide global coverage spanning more than decade to determine trends air quality, augmenting surface networks. Here we target the UK (London Birmingham) India (Delhi Kanpur) use observations of nitrogen dioxide (NO2) from Ozone Monitoring Instrument (OMI), ammonia...

The ‘Black Saturday’ fires were a series of devastating forest fires that burned across Victoria, Australia, during February and March of 2009. In this study we have used satellite data made publically available by NASA from the Ozone Monitoring Instrument (OMI) and the Atmospheric InfraRed Sounder (AIRS) to track the smoke plume from the Black Saturday firestorm and explore the chemical aging ...

The objective of this work is to analyze the temporal and spatial variability of the total ozone column (TOC) trends over the Yangtze River Delta, the most populated region in China, during the last 35 years (1978–2013) using remote sensing-derived TOC data. Due to the lack of continuous and well-covered ground-based TOC measurements, little is known about the Yangtze River Delta. TOC data deri...

Two statistical validation methods were used to evaluate the confidence level of Total Column Ozone (TCO) measurements recorded by satellite systems measuring simultaneously, one using normal distribution and another Mann-Whitney test. First, reliability TCO was studied hemispherically. While similar coincidences levels significance > 0.05 found with two tests, an enormous variability in throug...

[1] We used SCIAMACHY (10:00 LT) and OMI (13:30 LT) tropospheric NO2 columns to study diurnal and seasonal patterns in NO2 concentrations over India. Using characteristics of seasonal variability in tropospheric NO2 columns, we present a simple methodology to identify the dominant NOx source category for specific regions in India. Regions where the dominant source category is classified as biom...

Abstract. Nitrogen oxides (NOx, NO + NO2) are potent air pollutants which directly impact on human health and aid the formation of other hazardous such as ozone (O3) particulate matter. In this study, we use satellite tropospheric column nitrogen dioxide (TCNO2) data to evaluate spatiotemporal variability magnitude United Kingdom (UK) bottom-up National Atmospheric Emissions Inventory (NAEI) NO...

We examine the interannual variability in the NO2 column over North America measured by the Ozone Monitoring Instrument (OMI) in 2005–2008. By comparison to a model of soil NOx emissions driven by the North American Regional Reanalysis precipitation and 0–10 cm soil temperature fields, we show the source of this observed interannual variability over much of the central United States in June is ...

Remote sensing of bromine monoxide (BrO) from the Ozone Monitoring Instrument (OMI) and other satellite instruments opens the possibility to extend our understanding of atmospheric halogen chemistry from local-scale studies to global scales. In the Arctic springtime boundary layer, these bromine monoxide radicals and bromine atoms are known to destroy ozone [1] and oxidize mercury [2], leading ...

The present study is the first attempt to examine temporal and spatial characteristics of aerosol properties and classify their modes over Iran. The data used in this study include the records of Aerosol Optical Depth (AOD) and Angstrom Exponent (AE) from MODerate Resolution Imaging Spectroradiometer (MODIS) and Aerosol Index (AI) from the Ozone Monitoring Instrument (OMI), obtained from 2005 t...