Search Results - "Kaurola, J"

Impacts of climate change on temperature, precipitation and hydrology in Finland – studies using bias corrected Regional Climate Model data by Olsson, T, Jakkila, J, Veijalainen, N, Backman, L, Kaurola, J, Vehviläinen, B

“…Assessment of climate change impacts on climate and hydrology on catchment scale requires reliable information about the average values and climate…”
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Reconstructing of erythemal ultraviolet radiation levels in Europe for the past 4 decades by den Outer, P. N., Slaper, H., Kaurola, J., Lindfors, A., Kazantzidis, A., Bais, A. F., Feister, U., Junk, J., Janouch, M., Josefsson, W.

“…This paper is based on a comparative study on ultraviolet radiation (UV) measurements and UV reconstruction models for eight sites in Europe. Reconstruction…”
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Quality assurance of the Brewer spectral UV measurements in Finland by Lakkala, K., Arola, A., Heikkilä, A., Kaurola, J., Koskela, T., Kyrö, E., Lindfors, A., Meinander, O., Tanskanen, A., Gröbner, J., Hülsen, G.

“…The quality assurance of the two Brewer spectrophotometers of the Finnish Meteorological Institute is discussed in this paper. The complete data processing…”
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Effects of using certain tree species in forest regeneration on volume growth, timber yield, and carbon stock of boreal forests in Finland under different CMIP5 projections by ALRahahleh, L., Kilpeläinen, A., Ikonen, V.-P., Strandman, H., Asikainen, A., Venäläinen, A., Kaurola, J., Kangas, J., Peltola, H.

“…We studied how the use of certain tree species in forest regeneration affected the volume growth, timber yield, and carbon stock of boreal forests in Finland…”
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UV index climatology over the United States and Canada from ground-based and satellite estimates by Fioletov, V. E., Kimlin, M. G., Krotkov, N., McArthur, L. J. B., Kerr, J. B., Wardle, D. I., Herman, J. R., Meltzer, R., Mathews, T. W., Kaurola, J.

“…Long‐term monthly mean UV index values for Canada and the United States were calculated using information from two sources: from noon erythemal UV estimated…”
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On the usability of the ERA-40 reanalysis in the estimation of past surface UV radiation over Europe by Kaurola, J., Lindfors, A., Lakkala, K., Hansen, G., Josefsson, W., Vuilleumier, L., Feister, U., Slaper, H.

“…Erythemal daily UV doses have been calculated using input data from the ERA‐40 reanalysis for years 1958–2002. The quality of input parameters for UV…”
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Long-term erythemal UV doses at Sodankylä estimated using total ozone, sunshine duration, and snow depth by Lindfors, A. V., Arola, A., Kaurola, J., Taalas, P., Svenøe, T.

“…A method for estimating daily erythemal UV doses using total ozone, sunshine duration, and snow depth has been developed. The method consists of three steps:…”
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Characterizing a UV chamber with mercury lamps for assessment of comparability to natural UV conditions by Heikkilä, A., Kärhä, P., Tanskanen, A., Kaunismaa, M., Koskela, T., Kaurola, J., Ture, T., Syrjälä, S.

“…UV radiation conditions in a UV chamber equipped with four 300-W mercury vapour lamps have been characterized to assess the exposure received by the specimens…”
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Factors affecting short- and long-term changes of spectral UV irradiance at two European stations by Arola, A., Lakkala, K., Bais, A., Kaurola, J., Meleti, C., Taalas, P.

“…There have been relatively few studies that have attempted to separate the effects of the different factors affecting the short‐ and long‐term changes of UV…”
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A chemistry-transport model simulation of middle atmospheric ozone from 1980 to 2019 using coupled chemistry GCM winds and temperatures by Damski, J., Thölix, L., Backman, L., Kaurola, J., Taalas, P., Austin, J., Butchart, N., Kulmala, M.

“…A global 40-year simulation from 1980 to 2019 was performed with the FinROSE chemistry-transport model based on the use of coupled chemistry GCM-data. The main…”
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Comparison of daily UV doses estimated from Nimbus 7/TOMS measurements and ground-based spectroradiometric data by Kalliskota, Sari, Kaurola, Jussi, Taalas, Petteri, Herman, Jay R., Celarier, Edward A., Krotkov, Nikolay A.

“…During recent years, methods have been developed for estimating UV irradiance reaching the Earth's surface using satellite‐measured backscattered UV radiances…”
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A new approach to estimating the albedo for snow-covered surfaces in the satellite UV method by Arola, A., Kaurola, J., Koskinen, L., Tanskanen, A., Tikkanen, T., Taalas, P., Herman, J. R., Krotkov, N., Fioletov, V.

“…This paper describes a new method for estimating snow albedo for satellite retrieval of surface UV irradiance and daily UV doses over snow‐covered terrains…”
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Environmental specimen bank samples of Pleurozium schreberi and Hylocomium splendens as indicators of the radiation environment at the surface by Huttunen, S., Taipale, T., Lappalainen, N.M., Kubin, E., Lakkala, K., Kaurola, J.

“…Pleurozium schreberi (Brid.) Mitt. and Hylocomium splendens (Hedw.) Schimp. samples from the Finnish Environmental Specimen Bank were used to study the…”
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The regional climate model REMO (v2015) coupled with the 1-D freshwater lake model FLake (v1): Fenno-Scandinavian climate and lakes by Pietikäinen, Joni-Pekka, Markkanen, Tiina, Sieck, Kevin, Jacob, Daniela, Korhonen, Johanna, Räisänen, Petri, Gao, Yao, Ahola, Jaakko, Korhonen, Hannele, Laaksonen, Ari, Kaurola, Jussi

“…The regional climate model REMO was coupled with the FLake lake model to include an interactive treatment of lakes. Using this new version, the…”
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The impact of greenhouse gases and halogenated species on future solar UV radiation doses by Taalas, Petteri, Kaurola, Jussi, Kylling, Arve, Shindell, Drew, Sausen, Robert, Dameris, Martin, Grewe, Volker, Herman, Jay, Damski, Juhani, Steil, Benedikt

“…The future development of stratospheric ozone layer depends on the concentration of chlorine and bromine containing species. The stratosphere is also expected…”
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European UV DataBase (EUVDB) as a repository and quality analyser for solar spectral UV irradiance monitored in Sodankylä by Heikkilä, Anu, Kaurola, Jussi, Lakkala, Kaisa, Karhu, Juha Matti, Kyrö, Esko, Koskela, Tapani, Engelsen, Ola, Slaper, Harry, Seckmeyer, Gunther

“…Databases gathering atmospheric data have great potential not only as data storages but also in serving as platforms for coherent quality assurance (QA). We…”
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In search of traceability: two decades of calibrated Brewer UV measurements in Sodankylä and Jokioinen by Heikkilä, Anu, Sakari Mäkelä, Jakke, Lakkala, Kaisa, Meinander, Outi, Kaurola, Jussi, Koskela, Tapani, Karhu, Juha Matti, Karppinen, Tomi, Kyrö, Esko, de Leeuw, Gerrit

“…The two Brewer spectrophotometers of the Finnish Meteorological Institute at Jokioinen and Sodankylä have been operated according to the highest levels of the…”
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Data flow of spectral UV measurements at Sodankylä and Jokioinen by Mäkelä, Jakke Sakari, Lakkala, Kaisa, Koskela, Tapani, Karppinen, Tomi, Karhu, Juha Matti, Savastiouk, Vladimir, Suokanerva, Hanne, Kaurola, Jussi, Arola, Antti, Lindfors, Anders Vilhelm, Meinander, Outi, de Leeuw, Gerrit, Heikkilä, Anu

“…The data flow involved in a long-term continuous solar spectral UV irradiance monitoring program is investigated and structured to provide an overall view on…”
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Long-term variations of UV-B doses at three stations in northern Europe by Kaurola, Jussi, Taalas, Petteri, Koskela, Tapani, Borkowski, Janusz, Josefsson, Weine

“…Recent analysis of the total ozone observations indicate a negative trend of about 4%/decade in the Northern Hemisphere midlatitudes during the last two…”
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Test Equipment: Characterizing a UV chamber with mercury lamps for assessment of comparability to natural UV conditions by Heikkila, A, Karha, P, Tanskanen, A, Kaunismaa, M, Koskela, T, Kaurola, J, Ture, T, Syrjala, S

“…UV radiation conditions in a UV chamber equipped with four 300-W mercury vapour lamps have been characterized to assess the exposure received by the specimens…”
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