Introduction
Atmospheric dust, the suspension of tiny soil-derived particles in the atmosphere, is a global player in the Earth’s system. Dust influences the radiative balance of the planet in two different ways: directly by scattering and absorbing incoming solar radiation (Boucher et al. Reference Boucher, Randall, Artaxo, Bretherton, Feingold, Forster, Rasch, Tignor, Allen, Boschung, Nauels, Xia, Bex and Midgley2013) or indirectly by acting as cloud condensation nuclei and ice nuclei (Li et al. Reference Li, Maring, Savoie, Voss and Prospero1996), which in turn affect the optical properties and the lifetime of clouds, and consequently the precipitation patterns. Dust particles also have effects on atmospheric chemistry (Krueger et al. Reference Krueger, Marks and Graßl2004), acting as a sink for condensable gases and thus facilitating the formation of secondary aerosols, which in turn contribute to particulate matter concentrations. Dust sedimentation and deposition at the surface causes changes in the biogeochemical processes of terrestrial and marine ecosystems through the delivery of primary nutrients (Jickells et al. Reference Jickells, An, Andersen, Baker, Bergametti, Brooks, Cao, Boyd, Duce, Hunter, Kawahata, Kubilay, laRoche, Liss, Mahowald, Prospero, Ridgwell, Tegen and Torres2005). It has been demonstrated that the Amazon rainforest is fertilized significantly by Saharan dust (Yu et al. Reference Yu, Chin, Yuan, Bian, Remer, Prospero, Omar, Winker, Yang, Zhang, Zhang and Zhao2015). The essential nutrient elements are iron and phosphorus oxides carried by dust on their journey through the atmosphere. Parameterizations of oxides atmospheric processing based on knowledge on geographic distribution of typical dust minerals in sources estimate their nutrition level when deposited to terrestrial systems (Shi et al. Reference Shi, Bonneville, Krom, Carslaw, Jickells, Baker and Benning2011; Baker and Jickells Reference Baker and Jickells2006, Nickovic et al. Reference Nickovic, Vukovic, Vujadinovic, Djurdjevic and Pejanovic2012; Nickovic et al. Reference Nickovic, Vukovic and Vujadinovic2013). Airborne particles also interact with the cryosphere at far distances from the warm deserts as well as in high latitudes and mountains, where cold climate dust sources are located. The deposition of mineral dust on glaciers has the potential to lower their surface albedo and speed up their melting (Groot Zwaaftink et al. Reference Groot Zwaaftink, Grythe, Skov and Stohl2016; Dagsson-Waldhauserova et al. Reference Dagsson-Waldhauserova and Meinander2019).
Human exposure to airborne mineral dust represents a severe hazard to human health, causing or aggravating allergies, respiratory and cardiovascular diseases (Giannadaki et al. Reference Giannadaki, Pozzer and Lelieveld2014; Dominguez-Rodriguez et al. Reference Dominguez-Rodriguez, Baez-Ferrer, Rodríguez, Avanzas, Abreu-Gonzalez, Terradellas and Werner2020), eye infections (Goudie Reference Goudie2014), spreading of meningitis in Sahel region (Molesworth et al. Reference Molesworth, Cuevas, Connor, Morse and Thomson2003), valley fever (Sprigg et al. Reference Sprigg, Nickovic, Galgiani, Pejanovic, Petkovic, Vujadinovic, Vukovic, Dacic, DiBiase, Prasad and El-Askary2014), and the Kawasaki disease in Japan and Western USA (Frazer Reference Frazer2012). At the same, Sand and Dust Storms (SDS) can carry anthropogenic pollutants (Mori et al. Reference Mori, Nishikawa, Tanimura and Quan2003; Rodríguez et al. Reference Rodríguez, Alastuey, Alonso-Pérez, Querol, Cuevas, Abreu-Afonso, Viana, Pérez, Pandolfi and de la Rosa2011) as well as micro-organisms and toxic biogenic allergens (Griffin et al. Reference Griffin, Garrison, Herman and Shinn2001; Ho et al. Reference Ho, Rao, Hsu, Chiu, Liu and Chao2005). During the last decade, special attention has been given to the health effects of mineral dust particles from desert dust. However, evidence on the health effects of desert dust remains unclear. Previous reviews, systematic or no, have reported inconsistent results on the health effects of desert dust studies across different worldwide regions and methodologies applied. (De Longueville et al. Reference De Longueville, Ozer, Doumbia and Henry2013; Hashizume et al. Reference Hashizume, Ueda, Nishiwaki, Michikawa and Onozuka2010; Karanasiou et al. Reference Karanasiou, Moreno, Moreno, Viana, de Leeuw and Querol2012; Zhang et al. Reference Zhang, Zhao, Tong, Wu, Dan and Teng2016). The published studies differed in terms of settings, assessment methods for desert dust and sand storm exposure, lagged exposures examined and epidemiological study designs applied. Moreover, preliminary results from a systematic review commissioned by the World Health Organization (WHO) suggests that desert dust can be related, through different mechanisms, to a risk increase of cardiovascular mortality and respiratory morbidity, and especially asthma (Tobías et al. Reference Tobias, Karanasiou, Amato and Querol2019). A potential limitation in the literature is the lack of studies conducted on the long-term health effects of desert dust.
Dust events strongly affect the air quality conditions in Asia, where the background situation is often related to high aerosol concentrations (e.g. Wang et al. Reference Wang, Ying, Hu and Zhang2014; Li X et al. Reference Li, Liu and Yin2018). Desert dust outbreaks over southern Europe frequently contribute to exceedances of daily and annual safety thresholds of particulate matter (PM) set by the European Union directive on ambient air quality (e.g. Barnaba et al. Reference Barnaba, Bolignano, Di Liberto, Morelli, Lucarelli, Nava, Perrino, Canepari, Basart, Costabile, Dionisi, Ciampichetti, Sozzi and Gobbi2017; Querol et al. Reference Querol, Perez, Reche, Ealo, Ripoll, Tur, Pandolfi, Pey, Salvador and Moreno2019; Basart et al. Reference Basart, Pérez, Nickovic, Cuevas and Baldasano2012; Pey et al. Reference Pey, Querol, Alastuey, Forastiere and Stafoggia2013). Dust also impairs air quality and affects fragile cryosphere and environments in high latitude regions (Bullard et al. Reference Bullard, Baddock, Bradwell, Crusius, Darlington, Gaiero, Gassó, Gisladottir, Hodgkins, McCulloch, McKenna-Neuman, Mockford, Stewart and Thorsteinsson2016; Boy et al. Reference Boy, Thomson, Acosta Navarro, Arnalds, Batchvarova, Bäck, Berninger, Bilde, Brasseur, Dagsson-Waldhauserova, Castarède, Dalirian, Leeuw, Dragosics, Duplissy, Duplissy, Ekman, Fang, Gallet, Glasius, Gryning, Grythe, Hansson, Hansson, Isaksson, Iversen, Jonsdottir, Kasurinen, Kirkevåg, Korhola, Krejci, Kristjansson, Lappalainen, Lauri, Leppäranta, Lihavainen, Makkonen, Massling, Meinander, Nilsson, Olafsson, Pettersson, Prisle, Riipinen, Roldin, Ruppel, Salter, Sand, Seland, Seppä, Skov, Soares, Stohl, Ström, Svensson, Swietlicki, Tabakova, Thorsteinsson, Virkkula, Weyhenmeyer, Wu, Zieger and Kulmala2019).
High dust concentrations significantly reduce visibility through increased light extinction and may affect aircraft operations and ground transportation. The high impact of SDS on the aviation industry is related to disturbances in airport operations and routes due to poor visibility associated with strong SDS that cause the closing of airports. Additionally, SDS can cause aircraft engines to deteriorate not only through long-term exposure to even small concentrations, but also by dust melting in the turbines (Clarkson et al. Reference Clarkson, Elizabeth, Majewicz and Mack2016). But we are still far from answering questions such as: ‘How much dust is needed to significantly damage aircraft gas turbine engines?’.
SDS also have many negative impacts on the agricultural sector. The eroded material may cause mechanical injury to crops and natural vegetation by abrasion, and blown sand may bury young plants (Sivakumar and Stefanski Reference Sivakumar and Stefanski2009).
In addition, airborne dust is a serious problem for solar energy power plants (Schroedter-Homscheidt Reference Schroedter-Homscheidt, Oumbe, Benedetti and Morcrette2013; Kosmopoulos et al. Reference Kosmopoulos, Kazadzis, El-Askary, Taylor, Gkikas, Proestakis, Kontoes and El-Khayat2018; Hojan et al. Reference Hojan, Rurek, Więcław and Krupa2019). The presence of dust aerosol particles reduces the incoming solar irradiance through the direct radiative effect, and, indirectly, favouring cloud formation. In addition, in the proximity of deserts, solar energy plants suffer from dust deposition (soiling). Dust-induced soiling affects photovoltaic (PV) panels, as well as the efficiency of concentrating solar power (CSP) mirrors and water management. In brief, dust aerosol particles reduce the energy generation potential of solar power plants. The lack of forecasts, or inaccurate forecasts, results in an inefficient operation of the electricity system and can even endanger the security of supply (Kosmopoulos et al. Reference Kosmopoulos, Kazadzis, Taylor, Athanasopoulou, Speyer, Raptis, Marinou, Proestakis, Solomos and Gerasopoulos2017; Neher et al. Reference Neher, Meilinger and Crewell2017). Accurate dust forecasts in this case play an important role on the operation plant’s management.
Although, today, the relevance of mineral dust particles in all these fields is clear and there are several national and international scientific initiatives for studying dust-related problems, tailored products for the user communities are not yet available. Dust observations and models have nowadays reached a level of maturity to be ready for the translation into user-oriented products.
Procedure
The EU-funded European Cooperation in Science and Technology (COST) Action InDust (‘International network to encourage the use of monitoring and forecasting Dust products’, www.cost-indust.eu, CA16202) has the overall objective to establish a network involving research institutions, service providers and potential end-users of information on airborne dust that can assist the diverse socio-economic sectors affected by the presence of high concentrations of atmospheric dust.
Why is studying dust interesting? Why is sharing information on dust important? Why did we initiated the InDust community? The straightforward answer is that we want to bridge the gap between providers (scientists) and users, but there were many links and many possible answers discovered while getting deeper and deeper into this fascinating subject.
Through the actions taken within InDust, we are trying to harmonize data and coordinate the information exchange between the implicated communities -- the benefit of EU-funded research programmes -- to users and society. This interdisciplinary research stimulated innovations that are needed to solve some of the major problems facing society. In line with this main objective, the network is working on the identification and engagement of representatives of dust-affected socio-economic sectors (targeting air quality and health, aviation and solar energy) from different countries in Europe, North Africa and the Middle East. The scientists involved in InDust have been investigating current needs and future directions for airborne dust observations and applications, and also the specific needs of the users not supported by existing dust products, based on feedback obtained from user’s communities.
This collaborative effort is done through a range of networking tools, such as workshops, conferences, training schools, short-term scientific missions (STSMs), and dissemination activities. Activities requiring cooperation amongst members have been accomplished mainly through STSMs. These exchanges specifically contributed to the scientific objectives of InDust, at the same time allowing the Grantees to learn new techniques, gain access to specific data, instruments and/or methods not available in their own institutions/organizations. Several researchers took the opportunity of the STMS (https://cost-indust.eu/grants/grantees) and were able to submit several scientific articles proving fruitful collaborations (e.g. Gama et al. Reference Gama, Ribeiro, Lange, Vogel, Ascenso, Seixas, Elbern, Borrego, Friese and Monteiro2019; Gama et al. Reference Gama, Pio, Monteiro, Russo, Fernandes, Borrego, Baldasano and Tchepel2020; Kosmopoulos et al. Reference Kosmopoulos, Kazadzis, El-Askary, Taylor, Gkikas, Proestakis, Kontoes and El-Khayat2018; Marmureanu et al. Reference Marmureanu, Marin, Andrei, Antonescu, Ene, Boldeanu, Vasilescu, Vitelaru, Cadar and Levei2019).
Within InDust, cooperation with institutions from near-neighbouring and international partner countries in Northern Africa and the Middle East has proved to be essential and of mutual benefit. This is because dust concentrations are markedly higher there and the adverse effects more severe near the sources than far downwind. Moreover, the participation of South African, American and, importantly, Asian partners brought the possibility of extending the application of the developed products, protocols and tools well beyond European borders. Including areas such as Asian regions, where dust particles play a significant role in the air quality and meteorological processes, was beneficial for all communities.
Outcome
The primary outcomes of the network are the identification of the needs of the user's communities and new dust-related products and services able to satisfy their needs. As a first result, the network has been working on a dust catalogue that includes an overview of the current available observations (ground-based and satellite) and model products. Moving towards the development of an open collaboration and discussion platform between scientists and users of dust-related products and services, a survey is being shared within different user communities. The results of the survey are helping us to better identify the primary needs of each particular socio-economic sector and, furthermore, the collaborations between the groups involved have been focused on the themes emerging from the survey.
The use of online models to predict airborne dust quantities for radiation calculations and cloud formation in numerical weather prediction models is being increasingly recognized as important to improve the accuracy of short-range weather forecasts (Baklanov et al. Reference Baklanov, Schlünzen, Suppan, Baldasano, Brunner, Aksoyoglu, Carmichael, Douros, Flemming, Forkel, Galmarini, Gauss, Grell, Hirtl, Joffre, Jorba, Kaas, Kaasik, Kallos, Kong, Korsholm, Kurganskiy, Kushta, Lohmann, Mahura, Manders-Groot, Maurizi, Moussiopoulos, Rao, Savage, Seigneur, Sokhi, Solazzo, Solomos, Sørensen, Tsegas, Vignati, Vogel and Zhang2014) and air quality forecasts. Dust prediction faces a number of challenges owing to the complexity of the dust cycle (i.e. emission, transport and deposition, see Benedetti et al., Reference Benedetti, Reid, Baklanov, Basart, Boucher, Brooks, Brooks, Colarco, Cuevas, da Silva, Di Giuseppe, Escribano, Flemming, Huneeus, Jorba, Kazadzis, Kinne, Knippertz, Laj, Marsham, Menut, Mona, Popp, Quinn, Rémy, Sekiyama, Tanaka, Terradellas and Wiedensohler2018). At the centre of the problem is the vast range of scales required to fully account for all of the physical processes related to dust emission, transport and deposition (i.e. time scales ranging from seconds to weeks). Another limiting factor is the paucity of suitable dust observations available for model developments, evaluation and assimilation, particularly over desert dust sources (Mona et al. Reference Mona, Amiridis, Basart, Benedetti, Cuevas, Dagsson-Waldhauserova, Kazadzis, Knippertz, Madonna, Nickovic, Papagiannopoulos, Pappalardo, García-Pando, Popp, Rodríguez, Ryoo, Sealy, Sugimoto, Terradellas, Trippetta, Vandenbussche, Vukovic and Weinzierl2020). Recent years have seen a considerable increase in the number and complexity of dust models used both for research and for operational purposes. Due to the increase in computer power, these models can be run at higher spatial resolutions to allow for investigations of smaller-scale meteorological processes (<5 km), such as the effects of cold outflows from thunderstorms on dust emission (i.e. haboobs, see Vukovic et al. Reference Vukovic, Vujadinovic, Pejanovic, Andric, Kumjian, Djurdjevic, Dacic, Prasad, El-Askary, Paris, Petkovic, Nickovic and Sprigg2014; Heinold et al. Reference Heinold, Knippertz, Marsham, Fiedler, Dixon, Schepanski and Tegen2013; Solomos et al. Reference Solomos, Kalivitis, Mihalopoulos, Amiridis, Kouvarakis, Gkikas, Binietoglou, Tsekeri, Kazadzis, Kottas, Pradhan, Proestakis, Nastos and Marenco2018). Additionally, high-resolution model maps (<1 km) of sources are capable of recognizing dust hotspots, which in many cases have larger aerosol emissions than the other dust-productive areas. At the same time, there have been some new approaches to treating emission processes in the models at high resolution (Kok Reference Kok2011; Klose and Shao Reference Klose and Shao2016) as well as to including soil mineralogy (Nickovic et al. Reference Nickovic, Vukovic, Vujadinovic, Djurdjevic and Pejanovic2012) and more refined size distribution parametrizations (Ryder et al. Reference Ryder, Highwood, Lai, Sodemann and Marsham2013), to better characterize varying conditions in source regions.
Coordinated work has led to better understanding of the interactions between aerosols and atmospheric processes and is thus contributing to reducing the uncertainties in modelling the chemical composition of the atmosphere and in the quantification of the direct and indirect radiative forcing attributed to natural aerosols (Granados-Munoz et al. Reference Granados-Munoz, Sicard, Papagiannopoulos, Barragan, Bravo-Aranda and Nicolae2019; Gkikas et al. Reference Gkikas, Obiso, Pérez García-Pando, Jorba, Hatzianastassiou, Vendrell, Basart, Solomos, Gassó and Baldasano2018, Nickovic et al. Reference Nickovic, Cvetkovic, Pejanovic, Ilic, Dagsson Waldhauserová, Arnalds, Helgi Brink, Nikolic and Petkovic2018). Within the air quality community, there are ongoing discussions about the methodologies currently available to quantitatively report on contributions of this natural source to ambient particulate matter levels in Europe, in compliance with the EU Air Quality Directive (2008/50/CE). A matter of discussion is also how the dust forecasting models can help in the design of early warning systems (Solomos et al. Reference Solomos, Kalivitis, Mihalopoulos, Amiridis, Kouvarakis, Gkikas, Binietoglou, Tsekeri, Kazadzis, Kottas, Pradhan, Proestakis, Nastos and Marenco2018; Gama et al. Reference Gama, Ribeiro, Lange, Vogel, Ascenso, Seixas, Elbern, Borrego, Friese and Monteiro2019; Gama et al. Reference Gama, Pio, Monteiro, Russo, Fernandes, Borrego, Baldasano and Tchepel2020; Marmureanu et al. Reference Marmureanu, Marin, Andrei, Antonescu, Ene, Boldeanu, Vasilescu, Vitelaru, Cadar and Levei2019; El-Nadry et al. Reference El-Nadry, Li, El-Askary, Awad and Mostafa2019; Wenzhao et al. Reference Wenzhao, Ali, El-Magd, Mourad and El-Askary2019). Mei et al.’s (Reference Mei, Vandenbussche, Rozanov, Proestakis, Amiridis, Callewaert, Vountas and Burrows2020) article bridges the gap between the dust modelling communities and the providers of satellite dust observations, improving data quality and ensuring data standards compliance. Gama et al. (Reference Gama, Ribeiro, Lange, Vogel, Ascenso, Seixas, Elbern, Borrego, Friese and Monteiro2019) did a performance assessment of CHIMERE and EURAD-IM’ dust modules, while Konsta et al. (Reference Konsta, Binietoglou, Gkikas, Solomos, Marinou, Proestakis, Basart, Pérez García-Pando, El-Askary and Amiridis2018) provides an analysis of the CALIPSO limitations and uncertainties on the detection of strong dust activity, contributing to the differences between the simulations (regional dust model BSC-DREAM8b) and observations above the dust sources of Bodelé and Algeria.
InDust research activities have been extended far behind the main desert areas of the world into the high latitudes and Polar Regions. Such regions respond to dust impacts to a greater extent than lower latitude regions, through interactions with the cryosphere and fragile ecosystems, which have effects on climate.
On the other side, tailored tools developed within InDust help users to exploit the positive impacts of dust information.
For aviation, all efforts are in the development of early warning systems for hazard alerting, and potentially reducing the impact of dust on air traffic and management (e.g. Papagiannopoulos et al. Reference Papagiannopoulos, D’Amico, Gialitaki, Ajtai, Alados-Arboledas, Amodeo, Amiridis, Baars, Balis, Binietoglou, Comerón, Dionisi, Falconieri, Fréville, Kampouri, Mattis, Mijić, Molero, Papayannis, Pappalardo, Rodríguez-Gómez, Solomos and Mona2020).
For solar energy, Kosmopoulos et al. (Reference Kosmopoulos, Kazadzis, El-Askary, Taylor, Gkikas, Proestakis, Kontoes and El-Khayat2018) showed that under extreme dust conditions, daily energy losses can reach 60%. Such reductions can cause financial losses that exceed daily revenue values. The estimates of the impact of dust aerosols were based on reductions of surface solar radiation and solar energy in Egypt, based on Earth Observation (EO) related techniques. Soiling due to aerosol particles (mainly dust) challenges CSP plant operators to find the optimized cleaning strategy of the solar field. Low mirror cleanliness and revenues have to be balanced against higher cleaning costs, field efficiencies and water consumption. Kishcha et al. (Reference Kishcha, Volpov, Starobinets, Alpert and Nickovic2020) use a dust regional model to understand the negative effects of dust deposition on the performance of solar panels and on insulator flashover in the Israeli power electric network. Terhag et al. (Reference Terhag, Wolfertstetter, Wilbert, Hirsch and Schaudt2019) discussed the optimization potential of cleaning strategies based on dust aerosol particle induced soiling rate forecasts.
For health, Tobias and Stafoggia (Reference Tobias and Stafoggia2020) reviewed the exposure metric used to investigate the health effects of desert dust. Dust exposure can be defined using a binary metric and comparing the number of health events between days with and without dust events. Alternatively, dust exposure can be defined with a continuous metric quantifying the amount of mineral dust during those days with dust events and quantifying its association with the health outcome. Thus, the apparently simple question ‘does desert dust impact human health?’ requires a careful definition of what is the relevant dust exposure of interest and how such effects can be quantified, to identify and understand which health effects are plausible. The InDust scientists have proposed a general standardized modelling approach for investigating the short-term effects of desert dust on human health, in and near hotspots, which would allow more consistent evidence on the health effects of desert dust in future studies.
Conclusions
A large number of scientists (250) from (45) countries are working together in order to:
enhance the collaboration among scientists, data providers and interdisciplinary end users of aerosol dust;
find new ways to link measurements and modelling of airborne dust and its effects on climate, the environment and other socioeconomic sectors;
work on transferring scientific knowledge about dust observation and modelling from top research institutes to various scientists and dust users from different countries;
collaborate on publishing a number of scientific papers on airborne dust science and effects (ten papers in 2 years)
Remote areas in Europe, such as deserts at high latitudes, gain great support in dust research and monitoring through InDust, while InDust includes them as important and full partners in global dust monitoring and forecasting. This multidisciplinary network, funded by the EU COST action programme, definitely improves scientific progress due to an increase of the research into the impact of dust in different socio-economic sectors which benefits policymakers, public decision-makers and the private sector. It also contributes to the strengthening of European research and innovation capabilities in an international context.
Acknowledgements
The author(s) would like to acknowledge the contribution of the COST (European Cooperation in Science and Technology) Action: InDust (CA16202). COST (European Cooperation in Science and Technology) is a funding agency for research and innovation networks. These Actions help connect research initiatives across Europe and enable scientists to grow their ideas by sharing them with their peers. This boosts their research, careers and innovation. The Romanian National Core Programme Contract No.18N/2019 and AXA Research Fund for funding the aerosol research at the Barcelona Supercomputing Center (BSC) are also gratefully acknowledged. We would like to acknowledge cooperation with the ERA4CS DustClim project and also all participants and researchers who contributed to WMO Sand and Dust.
About the Author
Anca Nemuc has been a senior scientist at the National Institute of Research and Development for Optoelectronics, Romania since 2005. She holds a PhD in Physics from the Faculty of Physics, University of Bucharest, Romania and a Master of Science in Marine Environmental Sciences from the Marine Science Research Center, Stony Brook University, Stony Brook, New York, USA. Dr Nemuc is involved in several European Space Agency and EU projects related to both ground- and satellite-based atmospheric monitoring. She is the Principal Investigator of ESA project SAMIRA –no. 4000117393/16/I-NB SAtellite based Monitoring Initiative for Regional Air quality (2016–2019). She has also been Site Manager of AERONET (Aerosol Robotic Network) since 2007 and of MWRnet – An International Network of Ground-based Microwave Radiometers since 2009. For the past few years Dr Nemuc was the country representative in several COST actions: ES0702, European Ground-Based observations of Essential Variables for Climate and Operational Meteorology (EG-CLIMET); ES1303, Towards operational ground based profiling with ceilometers, Doppler lidars and microwave radiometers for improving weather forecasts (TOPROF); A16109, Chemical On-Line cOmpoSition and Source Apportionment of fine aerosol (COLOSSAL). In 2019, Dr Nemuc was appointed as a Grant Holder Scientific representative for the COST Action 16235. She is also involved in organizing summer schools, supervision of graduate and undergraduate students for research work and thesis writing. Her main scientific interests are in active and passive remote sensing data correlations, microwave radiometry, sun photometry and mass spectrometry systematic measurements and data analysis and processing. She is co-author of over 25 ISI papers related to aerosol, lidar, atmospheric dynamics and composition.
Sara Basart is a researcher in the Barcelona Supercomputing Center (BSC). She is the scientist in charge of the WMO Sand and Dust Storm Warning Advisory and Assessment System (SDS-WAS) Regional Center for Northern Africa, Middle East and Europe, and the Barcelona Dust Forecast Center (BDFC). Her experience includes the participation in various national, EU and international projects related with modelling and measuring atmospheric aerosols and their impacts and interactions in the atmospheric composition. She also participates in international projects such as the International Cooperative on Aerosol Prediction (ICAP) initiative, H2020 and Copernicus. She is Lead Project Investigator of the EU ERA4CS project DustClim. Recently, she was elected as Chair of the COST Action InDust. Furthermore, she has participated in capacity building and the transfer of knowledge activities associated with private contracts, European Commission and United Nations programmes.
Francesca Barnaba is Researcher at the Institute of Atmospheric Sciences and Climate (ISAC) of the Italian National Research Council (CNR) since 2009. She holds a Master's degree in Physics from the Physics Department of ‘La Sapienza’ University in Rome (Italy) and a PhD in Remote Sensing from the Engineering Department of the same university. Her main research interests are the characterization of aerosol properties through ground and space-based, active and passive remote sensing techniques, and the coupling of multi-platform, multi-sensor aerosol observations with numerical models to investigate aerosol processes from the local to the regional scale and related impacts on climate and air quality. She has participated in more than 25 national and international projects on these topics. She has authored over 60 peer-reviewed papers. She acts as a reviewer for national and international institutions (Italian Ministry of Education and Research, EC), as well as for several international journals. She is currently Associate Editor of Remote Sensing (MDPI). Since 2018 she has been coordinator of the ISAC-CNR ‘Atmospheric composition, climate forcing and air quality’ branch. Within the ‘InDust’ COST Action, she is MC representative for Italy and member of the Core Group.
Stelios Kazadzis is a senior scientist at the PMOD World Radiation Centre in Davos, Switzerland. His main expertise is measurement and modeling of solar radiation and aerosols. He is responsible for the World Optical Depth Research and Calibration Centre supported from WMO. His previous experience includes the participation in various EU and national projects related with spectral solar measurements, aerosols and their effects. He worked as senior researcher at Aristotle University of Thessaloniki, Greece, Finnish Meteorological Institute, Finland and the National Observatory Of Athens, Greece and as visiting scientist at JRC, Ispra Italy.
Pavla Dagsson-Waldhauserova is a dust scientist with a focus on High Latitude Dust (HLD) in Iceland and Antarctica. Her main interest is in dust aerosol measurements in polar regions, long-range transport of HLD and atmosphere-cryosphere interactions with a focus on dust deposition on snow and glaciers. Pavla is the coordinator of the IceDust Association (Aerosol and Dust Association, 14 countries, 35 organizations, https://icedustblog.wordpress.com/). She has conducted her research and teaching at the University of Iceland, Czech University of Life Sciences Prague and University of Iceland.
Alexandra Monteiro is Principal Researcher (CEECIND/03964/2017) at the University of Aveiro/CESAM/DAO. She holds a PhD in Science Applied to Environment, Universidade de Aveiro, Portugal and a Master's in Atmospheric pollution, Universidade de Aveiro, Portugal. She has authored more than 60 SCI papers, 12 book chapters, and more than 30 conference proceedings and other papers. She has participated in several EU and national funded projects, both as coordinator and as participant. Her research interests include air quality, atmospheric emissions, air quality modeling, climate change, and air quality integrated assessment.
