Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Jari Walden"'
Autor:
Jari Walden, Liisa Pirjola, Tuomas Laurila, Juha Hatakka, Heidi Pettersson, Tuomas Walden, Jukka-Pekka Jalkanen, Harri Nordlund, Toivo Truuts, Miika Meretoja, Kimmo K. Kahma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b30eb916d2d56dc2b5b39b7200714d32
https://doi.org/10.5194/acp-2020-1086-supplement
https://doi.org/10.5194/acp-2020-1086-supplement
Autor:
Jari Walden, Liisa Pirjola, Tuomas Laurila, Juha Hatakka, Heidi Pettersson, Tuomas Walden, Jukka-Pekka Jalkanen, Harri Nordlund, Toivo Truuts, Miika Meretoja, Kimmo K. Kahma
Deposition of gaseous compounds and nanoparticles from ship emissions was studied by micrometeorological methods at Harmaja in the Baltic Sea. The gradient method was used to measure fluxes of SO2, NO, NO2, O3, CO2, and Ntot (number concentration of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0e498cb6f5c5263cbe2f59932b460e7
https://doi.org/10.5194/acp-2020-1086
https://doi.org/10.5194/acp-2020-1086
Autor:
Joële Viallon, Robert Wielgosz, V. Gorshelev, Sungjun Lee, Paul J. Brewer, Jari Walden, Mary Ann H. Smith, Christof Janssen, Joseph T. Hodges, Brian J. Drouin, Antonio Possolo
Publikováno v:
Metrologia
Metrologia, IOP Publishing, 2019, 56 (3), pp.034001. ⟨10.1088/1681-7575/ab0bdd⟩
Metrologia, IOP Publishing, 2019, 56 (3), pp.034001. ⟨10.1088/1681-7575/ab0bdd⟩
International audience; A detailed review and analysis of literature values for the absorption cross-section of ozone at room temperature at the mercury-line wavelength (253.65 nm, air) is reported. Data from fourteen independent sets of measurements
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4df03d02606b58c76a064e2a3db912d1
https://hal.sorbonne-universite.fr/hal-02108262
https://hal.sorbonne-universite.fr/hal-02108262
Autor:
Tarja Koskentalo, Jari Walden, Anu Kousa, Liisa Pirjola, Jukka-Pekka Jalkanen, A. Pajunoja, Topi Rönkkö
Publikováno v:
Atmospheric Measurement Techniques, Vol 7, Iss 1, Pp 149-161 (2014)
Four measurement campaigns were performed in two different environments – inside the harbour areas in the city centre of Helsinki, and along the narrow shipping channel near the city of Turku, Finland – using a mobile laboratory van during winter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::961abc9ec0a63ac0492a261854ea72d3
https://www.atmos-meas-tech.net/7/149/2014/
https://www.atmos-meas-tech.net/7/149/2014/
Autor:
Martina Toceva, Ljupco Grozdanovski, Pia Anttila, Sari Lappi, Aleksandra Nestorovska-Krsteska, Aneta Stefanovska, Nikola Golubov, Pece Ristevski, Jari Walden, Igor Atanasov
Publikováno v:
Air Quality, Atmosphere & Health. 9:129-141
Continuous measurements of SO2, NO, NO2, O3, CO, PM10, PM2.5 and benzene were conducted over a 1-year period at two urban sites in Skopje in the Republic of Macedonia. Extremely high pollutant concentrations were recorded. Most of the limit, target a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b5e0fb0d85cdae696b2474b652eccbc
https://doi.org/10.1007/s11869-015-0326-7
https://doi.org/10.1007/s11869-015-0326-7
Publikováno v:
Metrologia. 55:08022
As part of the ongoing key comparison BIPM.QM-K1, a comparison has been performed between the ozone national standard of Finland maintained by the Finnish Meteorological Institute (FMI) and the common reference standard of the key comparison, maintai
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0783166e6e59db1f71bbece68e046ebd
https://doi.org/10.1088/0026-1394/55/1a/08022
https://doi.org/10.1088/0026-1394/55/1a/08022
Publikováno v:
Environmental Monitoring and Assessment. 100:33-52
Despite extensive efforts to ensure that sampling and installation and maintenance of instruments are as efficient as possible when monitoring air pollution data, there is still an indisputable need for statistical post processing (quality assessment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f58071ff8beff819f5801a30b1b47fd
https://doi.org/10.1007/s10661-005-7059-2
https://doi.org/10.1007/s10661-005-7059-2
Autor:
Ruwim Berkowicz, Raimo Kartastenpää, Ari Karppinen, Päivi Aarnio, Jari Walden, Leena Partanen, Jaakko Kukkonen, Tarja Koskentalo
Publikováno v:
Atmospheric Environment. 37:1101-1112
In 1997, a measuring campaign was conducted in a street canyon (Runeberg Street) in Helsinki. Hourly street level measurements and on-site electronic traffic counts were conducted throughout the whole of 1997; roof level measurements were conducted f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dce536f81858be7db315a09fe134f93c
https://doi.org/10.1016/s1352-2310(02)00957-3
https://doi.org/10.1016/s1352-2310(02)00957-3
Autor:
Jari Walden, V. Stovcik, H. P. Haerri, J. Couette, Klaus Wirtz, T. Waldén, T. Macé, C. Sutour, Céline Pascale, Bernhard Niederhauser
Publikováno v:
Measurement Science and Technology. 28:035801
The evaluation results of the metrological performance of a dilution and a permeation standard for generating SI-traceable calibration gas mixtures of NO, SO2 and NO2 for ambient air measurements are presented. The composition of the in situ produced
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4b26849d44f78b4526905b11874d636
https://doi.org/10.1088/1361-6501/aa543d
https://doi.org/10.1088/1361-6501/aa543d
Autor:
Leonid Konopelko, M V Pavlov, V V Pankratov, Jeong Sik Lim, Frank Guenther, Arul Murugun, Gerald D. Mitchell, Hu Shuguo, I I Wasserman, Takuya Shimosaka, Jari Walden, Y A Kustikov, Friedrich Lagler, A V Kolobova, Nobuyuki Aoki, Jinbok Lee, M. Miller, Dongmin Moon, Paul J. Brewer, Mace Tatiana, Marta Doval Miñarro, Paul Novelli, Brad Hall, S V Zavyalov, Han Qiao, O V Efremova, Jeongsoon Lee, Annette Borowiak
Publikováno v:
Metrologia. 54:08016
Carbon monoxide (CO) is reported to mainly be emitted from industries, transportation, and burnings for various usages. Its atmospheric lifetime varies from weeks to months, depending on the mixing ratio of the highly reactive hydroxyl radical. Even
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4fd7f32288b9bb91aecc2432ea756260
https://doi.org/10.1088/0026-1394/54/1a/08016
https://doi.org/10.1088/0026-1394/54/1a/08016