Dispersion and ground deposition of radioactive material according to airflow patterns for enhancing the preparedness to N/R emergencies

Hernández-Ceballos, M.A.; Sangiorgi, Marco; García-Puerta, B.; Montero, Marquez; Trueba, C.

doi:10.1016/j.jenvrad.2020.106178

Cited by 12 publications

(4 citation statements)

References 28 publications

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“…Determining air parcel trajectories is essential in terms of knowing which locations are affected by hazardous substances that have been accidentally released, such as radionuclides [ 41 ]. Air parcel trajectory models may be a necessary tool to determine the atmospheric corridors that control air flow.…”

Section: Macroscalementioning

confidence: 99%

Key Points in Air Pollution Meteorology

Pérez

García

Sánchez

et al. 2020

IJERPH

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Although emissions have a direct impact on air pollution, meteorological processes may influence inmission concentration, with the only way to control air pollution being through the rates emitted. This paper presents the close relationship between air pollution and meteorology following the scales of atmospheric motion. In macroscale, this review focuses on the synoptic pattern, since certain weather types are related to pollution episodes, with the determination of these weather types being the key point of these studies. The contrasting contribution of cold fronts is also presented, whilst mathematical models are seen to increase the analysis possibilities of pollution transport. In mesoscale, land–sea and mountain–valley breezes may reinforce certain pollution episodes, and recirculation processes are sometimes favoured by orographic features. The urban heat island is also considered, since the formation of mesovortices determines the entry of pollutants into the city. At the microscale, the influence of the boundary layer height and its evolution are evaluated; in particular, the contribution of the low-level jet to pollutant transport and dispersion. Local meteorological variables have a major influence on calculations with the Gaussian plume model, whilst some eddies are features exclusive to urban environments. Finally, the impact of air pollution on meteorology is briefly commented on.

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Section: Macroscalementioning

confidence: 99%

Key Points in Air Pollution Meteorology

Pérez

García

Sánchez

et al. 2020

IJERPH

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“…The ANPP is located at the far end of the Arrocampo basin in the Tajo river valley, which widens to the east and narrows to the west, flanked by mountains up to 1000 m above sea level to the north and south. This configuration, together with the high influence of western flows (Hernández-Ceballos et al, 2020), favours the channelling and eastward movement of the dispersed plume through the valley. Within this general behaviour, there is great variability in the areas most affected, in terms of shape and size, depending on the season.…”

Section: Affected Areasmentioning

confidence: 93%

“…Following the methodology applied in (Hernández-Ceballos et al, 2020), hourly time series of Total Gamma Dose Rate (hereafter TGDR) were extracted for each simulation at each monitoring station (Fig. 4a).…”

Section: Parameters For Evaluating Eurdep Networkmentioning

confidence: 99%

Analysing the Performance of Radiological Monitoring Network During Nuclear Accidents

Sangiorgi¹,

Ceballos²,

Bolı́var

2023

Preprint

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“…SO2, ash, dust, smoke, radionuclide) is a challenge for modellers, especially when a mix of particle occurs (Koch et al, 2006;Evangeliou and Eckhardt, 2020). The 80 use of satellite (Prata, 2009, Prata et al, 2010Theys et al, 2013Theys et al, , 2019Clarisse et al, 2013Clarisse et al, , 2020Christian et al, 2020;Khaykin et al, 2020) and ground-based networks (Ansmann et al, 2011;Pappalardo et al, 2013;D'amico et al 2015;Osborne et al, 2019;Ansmann et al, 2020;Hernández-Ceballos et al, 2020) is an essential piece in the dispersion modelling process. It makes it possible as it can provide information about the source of emission, discriminate the type of particles, and provide geolocation of the hazardous cloud, a crucial input for transport models.…”

Section: Introductionmentioning

confidence: 99%

EUNADICS early warning system dedicated to support aviation in case of crisis from natural airborne hazard and radionuclide cloud

Brenot

Theys

Clarisse

et al. 2021

Preprint

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Abstract. The purpose of the EUNADICS prototype Early Warning System (EWS) is to proceed the combined use of harmonise data products from satellite, ground-based and in situ instruments to produce alerts of airborne hazard (volcanic, dust, smoke and radionuclide clouds), satisfying the requirement of ATM stakeholders (www.eunadics.eu). The alert products developed by EUNADICS EWS (i.e. NRT observations, email notifications and NetCDF Alert data Products, called NCAP) have shown shows the significant interest in using selective detection of natural airborne hazards from polar orbiting satellite. The combination of several sensors inside a single global system demonstrates the advantage of using a triggered approach to obtain selective detection from observations, which cannot initially discriminate the different aerosol types. Satellite products from hyperspectral UV and IR sensors (e.g. TROPOMI, IASI) and broadband geostationary imager (SEVIRI), and retrievals from ground-based networks (e.g. EARLINET, E-PROFILE and the regional network from volcanic observatories), are combined by our system to create tailored alert products (e.g. selective ash detection, SO2 column and plume height, dust cloud and smoke from wildfires). A total of 23 different alert products are implemented, using 1 geostationary and 12 polar orbiting satellite platforms, 3 external existing service, 2 EU and 2 regional ground-based networks. This allows the identification and the traceability of extreme events. EUNADICS EWS has also shown the interest to proceed a future relay of radiological data (gamma dose rate and radionuclides concentrations in ground-level air) in case of nuclear accident, highlighting the capability of operating early warnings with the use of homogenised dataset. For the four types of airborne hazard, EUNADICS EWS has demonstrated its capability to provide NRT alert data products to trigger data assimilation and dispersion modelling providing forecasts, and inverse modelling for source term estimate. All our alert data products (NCAP files) are not publicly disseminated. Access to our alert products is currently restricted to key users (i.e. Volcanic Ash Advisory Centres, National Meteorological Services, World Meteorological Organization, governments, volcanic observatories and research collaborators), as these are considered pre-decisional products. On the other hand, thanks to the SACS/EUNADICS web interface (https://sacs.aeronomie.be), the main part of the satellite observations used by EUNADICS EWS, are shown in NRT, with public email notification of volcanic emission and delivery of tailored images and NCAP files. All the ATM stakeholders (e.g. VAACs, NMSs, WMOs, Airlines and Pilots) can access and benefit of these alert products through this free channel.

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Dispersion and ground deposition of radioactive material according to airflow patterns for enhancing the preparedness to N/R emergencies

Cited by 12 publications

References 28 publications

Key Points in Air Pollution Meteorology

Key Points in Air Pollution Meteorology

Analysing the Performance of Radiological Monitoring Network During Nuclear Accidents

EUNADICS early warning system dedicated to support aviation in case of crisis from natural airborne hazard and radionuclide cloud

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