DOAS tomography for the localisation and quantification of anthropogenic air pollution

Pundt, I.

doi:10.1007/s00216-005-0205-4

Cited by 7 publications

(4 citation statements)

References 8 publications

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“…After passing through the measurement path, the beam reaches the receiver from where it is sent to the spectrometer. At this point, the beam is subject to analysis, which makes it possible to determine the amount of light loss due to absorption along the measuring path [21,22]. For technical reasons (measurement unit partial malfunction), measurements have been limited to NO 2 only -nitrogen monoxides NO concentration measurement proved to be impossible.…”

Section: Measurement Methodologymentioning

confidence: 99%

THE IMPACT OF CONSTRUCTION WORKS CONDUCTED ON THE ROUTE DTŚ ON A LOCAL AIR QUALITY EVALUATED WITH THE USE OF NO₂ MEASUREMENTS

Mucha

Żeliński

2019

Architecture, Civil Engineering, Environment

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The rout Drogowa Trasa Średnicowa (DTŚ) Katowice-Gliwice (diametrial highway) creates an important way from the communication and economic point of view for the whole, strongly urbanized area of the socalled Katowice conurbation, which is a polycentric urban form. It integrates 52 municipalities of the Śląskie Voivodeship and 2 municipalities from the Małopolskie Voivodeship, covering an area of 1354 km² inhabited by 2,631.2 thousand inhabitants (in 2017) [1]. This conurbation forms the largest agglomerated area in Poland. In the conurbation area there is an important transport hub, located at the intersection of two routes of European importance-A1 and A4 motorways. About 12% of traffic in the Conurbation is the transit traffic running mainly through the system of these highways, the remaining 88% is about local origin [2]. Its high intensity forced the implementation of locally integrated public transport system, which DTS is the most important element. The main tasks of DTŚ include [2]: 1. Providing basic road links between individual functional units of the conurbation, 2. Increasing the speed of communication, and therefore saving time of travel, 3. Ensuring traffic safety for all road users and reducing the number of accidents, 4. Introduction of new quality in the post-industrial landscape, creating its positive image, which strengthens the attractiveness of these areas for investors. 5. Reduction of environmental nuisance.

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Section: Measurement Methodologymentioning

confidence: 99%

THE IMPACT OF CONSTRUCTION WORKS CONDUCTED ON THE ROUTE DTŚ ON A LOCAL AIR QUALITY EVALUATED WITH THE USE OF NO₂ MEASUREMENTS

Mucha

Żeliński

2019

Architecture, Civil Engineering, Environment

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“…Pundt 2006;Pundt et al 2005;Hartl et al 2006). Only very recently have passive instruments been used for tomographic reconstructions (e.g.…”

Section: Introductionmentioning

confidence: 99%

Tomographic reconstruction of gas plumes using scanning DOAS

et al. 2009

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This paper presents a method to reconstruct the gas distribution inside a vertical cross section of a gas plume by combining data from two or more scanning DOAS instruments using a tomographic algorithm. The method can be applied to gas plumes from any single, elevated point source, such as a volcano or industrial chimney. Such two-dimensional concentration distributions may prove to be useful for example in plume chemistry, dispersion and environmental impact studies. Here we show the case with one scanning DOAS instrument located on each side of the plume, which is the easiest and most economic setup as well as the most useful in routine monitoring of e.g. volcanic gas emissions. The paper investigates the conditions under which tomographic reconstructions can be performed and discusses limitations of this setup. The proposed method has been studied theoretically by numerical simulations and has been experimentally tested during two field campaigns, with measurements of SO 2 emissions from a volcano and a power plant. The simulations show that, under good measurement conditions, the algorithm presented performs well, which is further confirmed by the experimental results.

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“…Meanwhile, long-path instruments that were developed to measure the horizontal distribution of 2D emission plumes or trace gases from road traffic are more suitable for tomographic applications [32], as demonstrated by laboratory validation activities. Furthermore, the 2D distribution of emission plumes from a power plant was measured by passive instruments onboard an aircraft and the location and emissions of atmospheric emission plumes were estimated through numerical studies [33]. It is possible to determine polar optical depth coefficients using these techniques [34,35].…”

Section: Introductionmentioning

confidence: 99%

Unusual Enhancement of the Optical Depth on the Continental Shelf Depth Latitudinal Variation in the Stratospheric Polar Vortex

Qian

Yang

et al. 2023

Remote Sensing

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The Antarctic ozone hole has attracted attention concerning global climate change. Breakthroughs regarding ozone observation methods and the formation principles of ozone holes have occurred. This study compared the slant column ozone obtained from SCanning Imaging Absorption SpectroMeter for Atmospheric CHartographY (SCIAMACHY) Level 1 optical spectroscopy data processed by QDOAS software with that reconstructed from SCIAMACHY Level 2 ozone data using geographic information to obtain the optical depth coefficients. The global distribution of optical depth coefficients reveals latitudinal homogeneity, whereas the distribution of coefficients in the polar regions reveals heterogeneity. This heterogeneity has an annual variation pattern, alternating between strong and weak distributions in the Arctic and Antarctic regions. It is most evident in the Palmer Peninsula of Antarctica, where the optical depth coefficients were significantly higher than those of the surrounding regions at the same latitude. This analysis excluded the atmospheric pressure influence and suggested the influence of the continental shelf depth. The protrusion of the continental shelf depth changes the optical depth coefficients owing to the geographical proximity of the Antarctic Palmer Peninsula to South America, which separates the Atlantic and Pacific Oceans in an east–west direction.

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DOAS tomography for the localisation and quantification of anthropogenic air pollution

Cited by 7 publications

References 8 publications

THE IMPACT OF CONSTRUCTION WORKS CONDUCTED ON THE ROUTE DTŚ ON A LOCAL AIR QUALITY EVALUATED WITH THE USE OF NO₂ MEASUREMENTS

THE IMPACT OF CONSTRUCTION WORKS CONDUCTED ON THE ROUTE DTŚ ON A LOCAL AIR QUALITY EVALUATED WITH THE USE OF NO₂ MEASUREMENTS

Tomographic reconstruction of gas plumes using scanning DOAS

Unusual Enhancement of the Optical Depth on the Continental Shelf Depth Latitudinal Variation in the Stratospheric Polar Vortex

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DOAS tomography for the localisation and quantification of anthropogenic air pollution

Cited by 7 publications

References 8 publications

THE IMPACT OF CONSTRUCTION WORKS CONDUCTED ON THE ROUTE DTŚ ON A LOCAL AIR QUALITY EVALUATED WITH THE USE OF NO2 MEASUREMENTS

THE IMPACT OF CONSTRUCTION WORKS CONDUCTED ON THE ROUTE DTŚ ON A LOCAL AIR QUALITY EVALUATED WITH THE USE OF NO2 MEASUREMENTS

Tomographic reconstruction of gas plumes using scanning DOAS

Unusual Enhancement of the Optical Depth on the Continental Shelf Depth Latitudinal Variation in the Stratospheric Polar Vortex

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THE IMPACT OF CONSTRUCTION WORKS CONDUCTED ON THE ROUTE DTŚ ON A LOCAL AIR QUALITY EVALUATED WITH THE USE OF NO₂ MEASUREMENTS

THE IMPACT OF CONSTRUCTION WORKS CONDUCTED ON THE ROUTE DTŚ ON A LOCAL AIR QUALITY EVALUATED WITH THE USE OF NO₂ MEASUREMENTS