Abstract. Most studies on validation of satellite trace gas retrievals or atmospheric chemical transport models assume that pointwise measurements, which roughly represent the element space, should compare well with (model) pixels (grid box). This assumption implies field interest must possess a high degree spatial homogeneity within box), may not hold true for species short lifetimes in proxim...

La presente investigación, tiene como objetivo, determinar la variación de columna total ozono sobre las regiones Huancayo, Santiago Chile y Antártica. El estudio se enfocó en mediciones Estación Científica Antártica Machupicchu (ECAMP). Los datos fueron obtenidos por el Ozone Monitoring Instrument (OMI) NASA durante 16 años (2005-2020). Asimismo, obtuvo que Huancayo un promedio mensual 243.1 U...

Fuel combustion is a significant source of numerous air pollutants, which reduce local air quality, and affect global tropospheric chemistry. Satellite observations of nitrogen dioxide, emitted by combustion processes, allow for robust monitoring of atmospheric concentrations at high spatial resolution on continental scales. Here we evaluate changes in tropospheric NO(2) concentrations over Eur...

Data fusion aims at synergistic use of information and knowledge from different sources to aid in the overall understanding of a phenomenon. In the domain of remote sensing, where images are acquired by multiple sources or by the same source in multiple acquisition contexts, the data made available by different sources are complementary to each other, proper fusion of the data can bring better ...

Contemporary scientists have vested interest in trying to understand the climatology of the North Atlantic Basin since this region is considered as the genesis for hurricane formation that eventually get shipped to the tropical Atlantic region and the Caribbean. The effects of atmospheric water cycle and the climate of West Africa and the Atlantic basin are hugely impacted by the radiative forc...

Abstract. In atmospheric chemistry retrievals and data assimilation systems, observation errors associated with satellite radiances are chosen empirically generally treated as uncorrelated. this work, we estimate inter-channel error covariances for the Infrared Atmospheric Sounding Interferometer (IASI) evaluate their impact on ozone transport model MOCAGE (Modèle de Chimie Atmosphérique à Gran...

[1] Aggressive measures were instituted by the Beijing municipal authorities to restrict vehicular traffic in the Chinese capital during the recent Sino-African Summit. We show that reductions in associated emissions of NOx were detected by the Dutch-Finnish Ozone Monitoring Instrument (OMI) aboard the Aura satellite. Interpretation of these data using a 3-dimensional chemical transport model i...

We report on the first spectral measurements of ultraviolet (UV) irradiance and the albedo at a Camp located in the southern Ellsworth Mountains on the broad expanse of Union Glacier (700 m altitude, 79° 46' S; 82° 52'W); about 1,000 km from the South Pole. The measurements were carried out by using a double monochromator-based spectroradiometer during a campaign (in December 2012) meant to wei...

Abstract. Data from 242 ozonesondes launched ARIES, Nainital (29.40∘ N, 79.50∘ E; 1793 m elevation), are used to evaluate the Atmospheric Infrared Sounder (AIRS) version 6 ozone profiles and total column during period 2011–2017 over central Himalayas. The AIRS products analysed in terms of retrieval sensitivity, biases/errors, ability retrieve natural variability columnar ozone, which has not b...