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  • 1.
    Thomas, Manu
    et al.
    SMHI, Research Department, Air quality.
    Devasthale, Abhay
    SMHI, Research Department, Atmospheric remote sensing.
    L'Ecuyer, Tristan
    Wang, Shiyu
    SMHI, Research Department, Climate research - Rossby Centre.
    Koenigk, Torben
    SMHI, Research Department, Climate research - Rossby Centre.
    Wyser, Klaus
    SMHI, Research Department, Climate research - Rossby Centre.
    Snowfall distribution and its response to the Arctic Oscillation: an evaluation of HighResMIP models in the Arctic using CPR/CloudSat observations2019In: Geoscientific Model Development, ISSN 1991-959X, E-ISSN 1991-9603, Vol. 12, no 8, p. 3759-3772Article in journal (Refereed)
  • 2. Samson, Roeland
    et al.
    Moretti, Marco
    Amorim, Jorge Humberto
    SMHI, Research Department, Air quality.
    Branquinho, Cristina
    Fares, Silvano
    Morelli, Federico
    Niinemets, Ülo
    Paolett, Elena
    Pinho, Pedro
    Sgrigna, Gregorio
    Stojanovski, Vladimir
    Tiwary, Abhishek
    Sicard, Pierre
    Calfapietra, Carlo
    Towards an integrative approach to evaluate the environmental ecosystem services provided by urban forest2019In: Journal of Forestry Research, ISSN 1007-662X, E-ISSN 1993-0607, p. 1-16Article in journal (Refereed)
  • 3. Teixeira, J. C.
    et al.
    Fallmann, J.
    Carvalho, Ana
    SMHI, Research Department, Air quality.
    Rocha, A.
    Surface to boundary layer coupling in the urban area of Lisbon comparing different urban canopy models in WRF2019In: Urban Climate, ISSN 2212-0955, E-ISSN 2212-0955, Vol. 28, article id UNSP 100454Article in journal (Refereed)
  • 4. Lewinschal, Anna
    et al.
    Ekman, Annica M. L.
    Hansson, Hans-Christen
    Sand, Maria
    Berntsen, Terje K.
    Langner, Joakim
    SMHI, Research Department, Air quality.
    Local and remote temperature response of regional SO2 emissions2019In: Atmospheric Chemistry And Physics, ISSN 1680-7316, E-ISSN 1680-7324, Vol. 19, no 4, p. 2385-2403Article in journal (Refereed)
  • 5. Orru, Hans
    et al.
    Astrom, Christofer
    Andersson, Camilla
    SMHI, Research Department, Air quality.
    Tamm, Tanel
    Ebi, Kristie L.
    Forsberg, Bertil
    Ozone and heat-related mortality in Europe in 2050 significantly affected by changes in climate, population and greenhouse gas emission2019In: Environmental Research Letters, ISSN 1748-9326, E-ISSN 1748-9326, Vol. 14, no 7, article id 074013Article in journal (Refereed)
  • 6. Jenkin, M. E.
    et al.
    Khan, M. A. H.
    Shallcross, D. E.
    Bergström, Robert
    SMHI, Research Department, Air quality.
    Simpson, D.
    Murphy, K. L. C.
    Rickard, A. R.
    The CRI v2.2 reduced degradation scheme for isoprene2019In: Atmospheric Environment, ISSN 1352-2310, E-ISSN 1873-2844, Vol. 212, p. 172-182Article in journal (Refereed)
  • 7. Felix, Erika
    et al.
    Gidhagen, Lars
    SMHI, Research Department, Air quality.
    Alonso, Marcelo F.
    Nahirny, Everaldo P.
    Alves, Bruno L.
    Segersson, David
    SMHI, Research Department, Air quality.
    Amorim, Jorge Humberto
    SMHI, Research Department, Air quality.
    Passive sampling as a feasible tool for mapping and model evaluation of the spatial distribution of nitrogen oxides in the city of Curitiba, Brazil2019In: Air quality, atmosphere and health, ISSN 1873-9318, E-ISSN 1873-9326, Vol. 12, no 7, p. 837-846Article in journal (Refereed)
  • 8.
    Langner, Joakim
    et al.
    SMHI, Research Department, Air quality.
    Alpfjord Wylde, Helene
    SMHI, Professional Services.
    Andersson, Camilla
    SMHI, Research Department, Air quality.
    Mapping of phytotoxic ozone dose for birch, spruce, wheat and potato using the MATCH-Sweden system2019Report (Other academic)
    Abstract [en]

    We have added calculations of PODY for birch, spruce, wheat and potato to theMATCH-Sweden system. Several important updates compared to the previousimplementation for generic crops and generic deciduous trees have been made includingimproved calculations of canopy level ozone concentrations, updated calculations ofquasi-laminar and surface resistance and inclusion of soil moisture dependence forspecific vegetation species. 

    A comparison to results from the EMEP model for generic crops and generic deciduoustrees shows a better agreement than previously. Considering also that an error in theEMEP calculations has been identified, affecting primarily the PODY calculations forgeneric deciduous trees, MATCH-Sweden and EMEP model results now appear to bemore consistent.Year to year variability of PODY for birch and spruce are similar to that for genericdeciduous trees while numerical values are different, especially for birch, due to differentparameters in the PODY calculation and longer vegetation periods. Critical levelscorresponding to a 4 % growth reduction are exceeded for both birch and spruce in majorparts of Sweden for all years in the period 2013-2017.Year to year variability of PODY for wheat and potato are larger than for generic cropsdue to the higher threshold for PODY used in the calculations. Critical levelscorresponding to a 5 % reduction in crop yield are reached in four of five years insouthern Sweden for wheat and for two in five years for potato.The updated program package for PODY calculations could be used to calculateconsistent time series of PODY for different types of vegetation for the period 1990-2013based on reanalyzed ozone concentrations. The program package could also be developedto calculate PODY for the whole of Europe for different emission- or climate scenarios.The results presented in this report are also available in digital form at the SMHI homepage for environmental monitoring of air quality(www.smhi.se/klimatdata/miljo/atmosfarskemi).

  • 9. Krecl, Patricia
    et al.
    Cipoli, Yago Alonso
    Targino, Admir Creso
    Toloto, Matheus de Oliveira
    Segersson, David
    SMHI, Research Department, Air quality.
    Parra, Alvaro
    Polezer, Gabriela
    Moreton Godoi, Ricardo Henrique
    Gidhagen, Lars
    SMHI, Research Department, Air quality.
    Modelling urban cyclists' exposure to black carbon particles using high spatiotemporal data: A statistical approach2019In: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 679, p. 115-125Article in journal (Refereed)
  • 10.
    Thomas, Manu
    et al.
    SMHI, Research Department, Air quality.
    Devasthale, Abhay
    SMHI, Research Department, Atmospheric remote sensing.
    Koenigk, Torben
    SMHI, Research Department, Climate research - Rossby Centre.
    Wyser, Klaus
    SMHI, Research Department, Climate research - Rossby Centre.
    Roberts, Malcolm
    Roberts, Christopher
    Lohmann, Katja
    A statistical and process-oriented evaluation of cloud radiative effects in high-resolution global models2019In: Geoscientific Model Development, ISSN 1991-959X, E-ISSN 1991-9603, Vol. 12, no 4, p. 1679-1702Article in journal (Refereed)
  • 11. Yttri, Karl Espen
    et al.
    Simpson, David
    Bergström, Robert
    SMHI, Research Department, Air quality.
    Kiss, Gyula
    Szidat, Sonke
    Ceburnis, Darius
    Eckhardt, Sabine
    Hueglin, Christoph
    Nojgaard, Jacob Kleno
    Perrino, Cinzia
    Pisso, Ignazio
    Prevot, Andre Stephan Henry
    Putaud, Jean-Philippe
    Spindler, Gerald
    Vana, Milan
    Zhang, Yan-Lin
    Aas, Wenche
    The EMEP Intensive Measurement Period campaign, 2008-2009: characterizing carbonaceous aerosol at nine rural sites in Europe2019In: Atmospheric Chemistry And Physics, ISSN 1680-7316, E-ISSN 1680-7324, Vol. 19, no 7, p. 4211-4233Article in journal (Refereed)
  • 12.
    Thomas, Manu
    et al.
    SMHI, Research Department, Air quality.
    Devasthale, Abhay
    SMHI, Research Department, Atmospheric remote sensing.
    Tjernstrom, Michael
    Ekman, Annica M. L.
    The Relation Between Aerosol Vertical Distribution and Temperature Inversions in the Arctic in Winter and Spring2019In: Geophysical Research Letters, ISSN 0094-8276, E-ISSN 1944-8007, Vol. 46, no 5, p. 2836-2845Article in journal (Refereed)
  • 13. McFiggans, Gordon
    et al.
    Mentel, Thomas F.
    Wildt, Juergen
    Pullinen, Iida
    Kang, Sungah
    Kleist, Einhard
    Schmitt, Sebastian
    Springer, Monika
    Tillmann, Ralf
    Wu, Cheng
    Zhao, Defeng
    Hallquist, Mattias
    Faxon, Cameron
    Le Breton, Michael
    Hallquist, Asa M.
    Simpson, David
    Bergström, Robert
    SMHI, Research Department, Air quality.
    Jenkin, Michael E.
    Ehn, Mikael
    Thornton, Joel A.
    Alfarra, M. Rami
    Bannan, Thomas J.
    Percival, Carl J.
    Priestley, Michael
    Topping, David
    Kiendler-Scharr, Astrid
    Secondary organic aerosol reduced by mixture of atmospheric vapours2019In: Nature, ISSN 0028-0836, E-ISSN 1476-4687, Vol. 565, no 7741, p. 587-593Article in journal (Refereed)
  • 14. Theobald, Mark R.
    et al.
    Vivanco, Marta G.
    Aas, Wenche
    Andersson, Camilla
    SMHI, Research Department, Air quality.
    Ciarelli, Giancarlo
    Couvidat, Florian
    Cuvelier, Kees
    Manders, Astrid
    Mircea, Mihaela
    Pay, Maria-Teresa
    Tsyro, Svetlana
    Adani, Mario
    Bergström, Robert
    SMHI, Research Department, Air quality.
    Bessagnet, Bertrand
    Briganti, Gino
    Cappelletti, Andrea
    D'Isidoro, Massimo
    Fagerli, Hilde
    Mar, Kathleen
    Otero, Noelia
    Raffort, Valentin
    Roustan, Yelva
    Schaap, Martijn
    Wind, Peter
    Colette, Augustin
    An evaluation of European nitrogen and sulfur wet deposition and their trends estimated by six chemistry transport models for the period 1990-20102019In: Atmospheric Chemistry And Physics, ISSN 1680-7316, E-ISSN 1680-7324, Vol. 19, no 1, p. 379-405Article in journal (Refereed)
  • 15.
    Amorim, Jorge Humberto
    et al.
    SMHI, Research Department, Air quality.
    Asker, Christian
    SMHI, Research Department, Air quality.
    Belusic, Danijel
    SMHI, Research Department, Climate research - Rossby Centre.
    Carvalho, Ana
    SMHI, Research Department, Air quality.
    Engardt, Magnuz
    SMHI, Research Department, Air quality.
    Gidhagen, Lars
    SMHI, Research Department, Air quality.
    Hundecha, Yeshewatesfa
    SMHI, Research Department, Hydrology.
    Körnich, Heiner
    SMHI, Research Department, Meteorology.
    Lind, Petter
    SMHI, Research Department, Climate research - Rossby Centre.
    Olsson, Esbjörn
    SMHI, Research Department, Meteorology.
    Olsson, Jonas
    SMHI, Research Department, Hydrology.
    Segersson, David
    SMHI, Research Department, Air quality.
    Strombäck, Lena
    SMHI, Research Department, Hydrology.
    Joe, Paul
    Baklanov, Alexander
    Integrated Urban Services for European cities: the Stockholm case2018In: WMO Bulletin, ISSN 0042-9767, Vol. 67, no 2, p. 33-40Article in journal (Refereed)
  • 16.
    Persson, Gunn
    et al.
    SMHI, Professional Services.
    Wikberger, Christina
    Amorim, Jorge Humberto
    SMHI, Research Department, Air quality.
    Klimatanpassa nordiska städer med grön infrastruktur2018Report (Other academic)
    Abstract [sv]

    Förtätning av städer och pågående klimatförändring ökar behovet av anpassningsåtgärder. Grön infrastruktur och naturbaserade lösningar kan bidra till att skapa mer hälsosamma och långsiktigt hållbara städer. För att öka användningen av grön infrastruktur som en del i klimatanpassningen behöver vi förstå vilka kunskapsluckor och andra hinder som ligger i vägen för att grön infrastruktur ska användas i klimatanpassningsarbetet.

    SMHI har under år 2018 tillsammans med Stockholms stad drivit det av forskningsrådet Formas finansierade projektet ”Grön infrastruktur och klimat i nordiska städer: idag och i framtiden”. Sammanställningen av rapporter och workshops i projektet visar att det finns mycket kunskap och tillgängliga exempel på hur urbana gröna lösningar kan se ut. Det saknas dock svar på de kvantitativa effekterna av olika åtgärder avseende till exempel temperatur, luftkvalitet, påverkan på hälsa och sociala aspekter.

    De åtgärder som i dag görs i nordiska städer baseras huvudsakligen på behovet av att lösa dagvattenfrågor. Det finns få exempel på städer som använder grön infrastruktur och naturbaserade lösningar som klimatanpassningsåtgärder när det gäller värme. Samtidigt är aktörerna medvetna om övriga positiva effekter som tillkommer såsom trivsel, svalka och biologisk mångfald.

    Eftersom grön infrastruktur och naturbaserade lösningar är ganska nya åtgärder i klimatanpassningsarbetet så saknas oftast erfarenheter av långtidseffekter. Skötsel kan vara ett problem, trots bra anvisningar. Aktörerna pekar också på behovet av att engagera de boende kontinuerligt. Det tycks handla om att skapa en djupare förståelse för varför anläggningar ser ut som de gör och hur de ska skötas.

    Vid workshops och webbinarium efterfrågades vilka kunskapsluckor deltagarna såg. Ekonomi och kunskap om effekter lyftes fram tydligt i svaren. Dessutom önskades metoder för anläggning och drift, goda exempel, planeringsverktyg och underlag om temperatur och vatten.

    Ekonomi och kunskapsbrist ansågs som hinder för genomförande, vilket framkom vid workshops och webbinarium. Andra hinder som nämndes var politiska beslut, lagstiftning, avsaknad av riktlinjer, förtätning och konkurrens om mark liksom planerings- och samordningssvårigheter. En tröghet i att ändra traditionellt planerande och utförande pekades också ut som hinder. Många efterfrågar kunskap allmänt. Vår förhoppning är att denna rapport kan bidra till att inspirera och informera om var material finns. 

  • 17.
    Kahnert, Michael
    SMHI, Research Department, Air quality.
    Information constraints in variational data assimilation2018In: Quarterly Journal of the Royal Meteorological Society, ISSN 0035-9009, E-ISSN 1477-870X, Vol. 144, no 716, p. 2230-2244Article in journal (Refereed)
  • 18.
    Andersson, Camilla
    et al.
    SMHI, Research Department, Air quality.
    Alpfjord Wylde, Helene
    SMHI, Professional Services.
    Engardt, Magnuz
    SMHI, Research Department, Air quality.
    Long-term sulfur and nitrogen deposition in Sweden: 1983-2013 reanalysis2018Report (Other academic)
    Abstract [en]

    A unique long-term (1983-2013) dataset of sulfur and nitrogen deposition has been compiled for Sweden as well as the Baltic Sea and surrounding countries, based on quality controlled measurements and modelled fields, fused though advanced methods capturing spatial and temporal variations. The data set can be used for describing trends in deposition to various relevant surface types.Our reanalysis compares well to observations, but we have identified differences in dry deposition to coniferous forest. This calls for more in-depth studies of the dry deposition and improvements to the respective methods.We recommend more advanced methods of describing spatial variation than averaging or spatial interpolation of observed deposition.We estimate a significant decrease from the 1980s until today for both sulfur and nitrogen deposition (by ca. 80% and 30% respectively).Critical loads for coniferous and deciduous forests, mountain vegetation and wetlands have been surpassed mainly in the southwest Sweden, but also in southeast Sweden and the southern parts of Scandes Mountains. The situation is improving, but exceedances do still occur also in larger regions.

  • 19. Dias, Daniela
    et al.
    Amorim, Jorge Humberto
    SMHI, Research Department, Air quality.
    Sa, Elisa
    Borrego, Carlos
    Fontes, Tania
    Fernandes, Paulo
    Pereira, Sergio Ramos
    Bandeira, Jorge
    Coelho, Margarida C.
    Tchepel, Oxana
    Assessing the importance of transportation activity data for urban emission inventories2018In: Transportation Research Part D: Transport and Environment, ISSN 1361-9209, E-ISSN 1879-2340, Vol. 62, p. 27-35Article in journal (Refereed)
  • 20.
    Leung, Wing
    et al.
    SMHI, Professional Services.
    Windmark, Fredrik
    SMHI, Professional Services.
    Brodl, Ludvik
    SMHI, Professional Services.
    Langner, Joakim
    SMHI, Research Department, Air quality.
    A basis to estimate marginal cost for air traffic in Sweden.: Modelling of ozone, primary and secondary particles and deposition of sulfur and nitrogen.2018Report (Other academic)
    Abstract [en]

    In this study we have investigated the effects of emissions from aviation on air quality in both Swedish and European domains. The results will be used as a basis to estimate the marginal cost for air traffic in Sweden. The vertical, geographical and temporal distribution of aviation emissions over Sweden has been estimated using a newly developed methodology. The aviation emissions have been categorized by their emission altitude (LTO, low cruise and high cruise) and flight nationality (international, national and overflight). This aviation emission information was then used as input data to the regional atmospheric chemistry model MATCH to simulate the effects of aviation emissions on ecosystem, health and climate metrics. A total of 17 model simulations over three years have been performed. There is one simulation in which all emitted species from the surface and aviation emissions are included and eight simulations in which all aviation emissions from each combination of emission altitude and flight nationality are included. There are eight simulations in which NOx aviation emissions from each combination of emission altitude and flight nationality are included. Using these simulations, contributions from aviation emissions to deposition, concentrations and a range of different air pollution metrics has been calculated. The results are calculated in both the Europe and Swedish domains for all the simulations. 

    The following results are included in this report: . Deposition of oxidised and reduced nitrogen . Deposition of excess sulfur . AOT40 and SOMO35 and their exposures . Concentration and exposure of primary and secondary particles . Concentration of nitrate and sulfate particles . Concentration of surface and above surface ozone 

    In summary, contributions from aviation emissions in Sweden to the different concentrations, deposition and metrics for environmental effects are generally small, on the order of a few per mille or less. However the impacts can be traced in the simulations well beyond the Swedish borders. LTO emissions give the largest contribution to deposition of oxidised and reduced nitrogen, deposition of excess sulfur and concentrations of primary and secondary particles. In particular near the major airports like Stockholm-Arlanda and Gothenburg-Landvetter. High cruise emissions give insignificant contributions to deposition and concentrations at surface level. LTO emissions give a negative contribution to surface ozone concentration locally at the main Swedish airports but give an overall increased contribution in the regions around. Aviation emissions at low cruise and high cruise levels have the largest effect on ozone concentrations at higher levels. 

1234567 1 - 20 of 340
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