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Publications 1983 2019

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2014

Comparison on eddy covariance and floating chamber measurements of CO2 and CH4 fluxes over a boreal lake

Erkkilä, K-M., Gutierrez de los Rios, M. L., Heiskanen, J. J., Miettinen, H. M., Peltola, O. P., Ojala, A. K., Vesala, T. V. & Mammarella, I., Nov 2014, Proceedings of 'the Center of Excellence in Atmospheric Sciences (CoE ATM) - From Molecular and Biological Processes to the Global Climate' Annual Meeting 2014. Aerosolitutkimusseura ry, p. 246-249 4 p. (Report Series in Aerosol Science; vol. 2014, no. 157).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Greenhouse gases and micrometeorology research team: overview of scientific activities

Mammarella, I., Vesala, T., Alekseychik, P., Dengel, S., Erkkilä, K-M., Heiskanen, J., Keronen, P., Kolari, P., Nordbo, A., Peltola, O., Provenzale, M., Räsänen, M., Rannik, U., Aalto, T., Järvi, L., Laurila, T., Ojala, A., Tuittila, E-S., Levula, J., Praplan, A. & 4 othersPihlatie, M., Rinne, J., Pumpanen, J. & Bäck, J., 2014, Proceedings of 'the Center of Excellence in Atmospheric Sciences (CoE ATM) –From Molecular and Biological Processes to the Global Climate’ Annual Meeting 2014. Kulmala, M., Lintunen, A. & Kontkanen, J. (eds.). Helsinki: Finnish Association for Aerosol Research, p. 99-105 7 p. (Report Series in Aerosol Science; vol. 157).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Project for the measurement of greenhouse gas exchanges over lake Vanajavesi with the Eddy Covariance technique

Provenzale, M., Arvola, L. M. J., Mammarella, I., Ojala, A. K., Rantala, P. A. I. & Vesala, T. V., 2014, Proceedings of 'the Center of Excellence in Atmospheric Sciences (CoE ATM) –From Molecular and Biological Processes to the Global Climate’ Annual Meeting 2014. Kulmala, M., Lintunen, A. & Kontkanen, J. (eds.). Helsinki: Finnish Association for Aerosol Research, p. 533-535 3 p. (Report Series in Aerosol Science; vol. 157).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

2013

Emissions of volatile organic compounds from boreal humic lakes

Aaltonen, H., Hakola, H., Ojala, A., Klemedtsson, L., Pumpanen, J., Peltomaa, E. & Bäck, J., 2013, Proceedings of FCoE in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' Annual Meeting 2013. p. 152-154 3 p. (Report Series in Aerosol Science; vol. Nro 142 (2013)).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Evidence of lateral transport of carbon gases of terrestrial origin in boreal aquatic ecosystems

Ojala, A., Pumpanen, J., Rasilo, T., Miettinen, H., Rantakari, M. M., Heiskanen, J., Mammarella, I., Huotari, J., Kankaala, P., Levula, J., Bäck, J., Hari, P. & Vesala, T., 2013, Proceedings of FCoE in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' Annual Meeting 2013. p. 429-432 4 p. (Report Series in Aerosol Science; vol. Nro 142 (2013)).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Long term measurements of carbon dioxide and methane fluxes over a small boreal lake in Southern Finland

Mammarella, I., Erkkilä, K-M., Haapanala, S., Heiskanen, J., Ojala, A. & Vesala, T., 2013, Proceedings of FCoE in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' Annual Meeting 2013. p. 381-385 5 p. (Report Series in Aerosol Science; vol. Nro 142 (2013)).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Rhizosphere processes play an important role in soil organic matter; Decomposition and greenhouse gas fluxes in boreal landscape; Summary of soil research carried out at FCoE during the second FCoE period (2009-2013)

Pumpanen, J., Heinonsalo, J., Pihlatie, M., Aaltonen, H., Berninger, F., Bäck, J., Hari, P., Kieloaho, A-J., Korhonen, J., Köster, K., Linden, A., Kulmala, L., Kulmala, M., Nikinmaa, E., Ojala, A., Rasilo, T. & Vesala, T., 2013, Proceedings of FCoE in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' Annual Meeting 2013. Kulmala, M., Lappalainen, H. K., Brus, M. & Kontkanen, J. (eds.). Helsinki, p. 76-85 10 p. (Report Series in Aerosol Science; no. 142).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

2012

Boreal and Arctic water balance under a climate change: combining multiple source data to detect trends in ecosystem functioning

Berninger, F., Kasurinen, V., Ojala, A. & Nikinmaa, E., 2012, Report Series in Aerosol Science, Part A: Proceeding of FCoE in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' and NCoE in 'Cryosphere - Atmosphere Interactions in a Changing Climate' . Kulmala, M., Lappalainen, H. K., Boy, M., Brus, M. & Nieminen, T. (eds.). Vol. 134. p. 175-178 4 p. (Report Series in Aerosol Science, Part A; vol. 134).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

DOC flux in a boreal forested catchment

Rasilo, T., Starr, M., Ojala, A. & Pumpanen, J., 2012, Proceedings of the Finnish Doctoral Programme in Atmospheric Composition and Climate Change ACCC Annual Meeting 9.–10.1.2012. Kulmala, M., Lauri, A., Brus, M. & Nieminen, T. (eds.). Helsinki: Finnish Association for Aerosol Research, p. 60 1 p. (Report Series in Aerosol Science; no. 129).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Energy exchange and DOM production in boreal forest in relation to cryosphere processes

Kasurinen, V., Berninger, F. & Ojala, A., 2012, Report Series in Aerosol Science, Part A: Proceedings of FCoE in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' and NCoE in 'Cryosphere - Atmosphere Interactions in a Changing Climate'. Annual Meeting 2012. Markku, K., Lappalainen, H. K., Boy, M. & Brus, M. (eds.). HELSINKI, Vol. 134. p. 338-340 3 p. (Report Series in Aerosol Science, part A).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

From water-air interfaces to carbon-water cycles

Vesala, T., Mammarella, I., Alekseychik, P., Dengel, S., Haapanala, S., Heiskanen, J., Keronen, P. I. R., Kujansuu, J., Pihlatie, M., Raivonen, M., Rinne, J., Tomasic, M., Smolander, S., Hölttä, T., Juurola, E., Kolari, P., Aalto, T., Laurila, T., Ojala, A., Tuittila, E-S. & 3 othersLevula, J., Bäck, J. & Nikinmaa, E., 2012, Proceedings of FCoE in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' and NCoE in 'Cryosphere-Atmosphere Interactions in a Changing Climate' Annual Meetings 2012. p. 121-124 4 p. (Report Series in Aerosol Science; no. 134).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Soil CO2 concentrations and fluxes in a boreal headwater catchment

Rasilo, T., Pumpanen, J. & Ojala, A., 2012, Report Series in Aerosol Science, Part A: Proceedings of FCoE in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' and NCoE in 'Cryosphere-Atmosphere Interactions in a Changing Climate'. Annual Meeting 2012.. Kulmala, M., Lappalainen, H. K., Boy, M. & Brus, M. (eds.). Vol. 134. p. 538-543 6 p. (Report Series in Aerosol Science, Part A).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

2011

DOC concentration and quality in the riparian zone of a forested boreal catchment

Rasilo, T., Ojala, A., Starr, M. & Pumpanen, J., 2011, Proceedings of the Finnish Center of Excellence and Graduate School in 'Physics, Chemistry, Biology and Meteorology ofAtmospheric Composition and Climate Change' Annual Workshop 18.–20.5.2011. Kulmala, M., Bäck, J., Lappalainen, H. K. & Nieminen, T. (eds.). Helsinki: Finnish Assosiation for Aerosol Research, p. 334-338 5 p. (REPORT SERIES IN AEROSOL SCIENCE; no. 126).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Emissions of volatile organic compounds from a boreal humic lake

Bäck, J., Ojala, A., Pumpanen, J., Sjöblom, H., Aaltonen, H., Hakola, H. & Hellen, H., 2011, Proceedings of CRAICC Annual Meeting 2011. p. 43-46 4 p. (Report series in aerosol science; vol. 128).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

On eddy covariance flux measurements over lakes

Vesala, T., Nordbo, A., Haapanala, S., Mammarella, I., Pumpanen, J., Eugster, W., Huotari, J. & Ojala, A., 2011, Proceedings of the Finnish Center of Excellence and Graduate School in 'Physics, Chemistry, Biology and Meteorology ofAtmospheric Composition and Climate Change'. p. 395-398 4 p. (Report series in aerosol science; vol. 126).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

2010

Application of CO2 concentration gradient method for determining soil respiratory fluxes and time delays between photosynthesis and soil respiration

Pumpanen, J., Kulmala, L., Hari, P., Vargas, R., Ojala, A., Vesala, T. & Nikinmaa, E., 2010, Proceedings of the Finnish Center of Excellence and Graduate School in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' Annual Workshop 17.-19.5.2010. 6 p. (Report Series in Aerosol Science A; vol. 109).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

DOC concentration in various compartments of a forested boreal catchment and responses to rain events

Rasilo, T., Ojala, A. & Pumpanen, J., 2010, Proceedings of the Finnish Center of Excellence and Graduate School in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change' Annual Workshop 17.-19.5.2010. Helsinki: Finnish Association for Aerosol Research, 5 p. (Report series in aerol science; no. 109).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Micrometeorology and energy balance of a small boreal lake

Nordbo, A., Launiainen, S., Mammarella, I., Leppäranta, M., Huotari, J., Ojala, A. & Vesala, T., 2010, Proceedings of the Finnish Center of Excellence and Graduate School in 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change. (Report Series in Aerosol Science A; no. 109).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

2009

Carbon flow through an old-growth forest catchment into a lake in southern boreal zone in Finland

Rasilo, T., Huotari, J., Ojala, A. & Pumpanen, J., 2009, Proceedings of the Finnish Center of Excellence and Graduate School in "Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change Annual workshop 27.-29.4.2009 Markku Kulmala, Jaana Bäck, Tuomo Nieminen and Antti Lauri, editors. Finnish Association for Aerosol Research, p. 361-365 5 p. (Report series in aerosol science; no. 102).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

2008

CO2 concentration in a boreal lake and its riparian zone soil matrix - transfer of terrestrial carbon into aquatic ecosystems

Rasilo, T., Pumpanen, J. & Ojala, A., 2008, Proceedings of the Finnish Graduate School 'Physics, Chemistry, Biology and Meteorology of Atmospheric Composition and Climate Change': workshop 22.-23.4.2008. Kulmala, M. & Lauri, A. (eds.). Helsinki, p. 65 (Report Series in Aerosol Science; no. 97).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Micrometeorological studies of biosphere-atmosphere exchange

Vesala, T., Launiainen, S., Aalto, P., Aaltonen, H., Grönholm, T., Haapanala, S., Hannuniemi, H., Hölttä, T., Järvi, L., Keronen, P., Kieloaho, A-J., Kulmala, M., Mammarella, I., Pihlatie, M., Rannik, U., Rinne, J., Sevanto, S., Sogachev, A., Suni, T., Taipale, R. & 17 othersAalto, T., Aurela, M., Laurila, T., Viisanen, Y., Markkanen, T. S., Huotari, J., Ojala, A., Ilvesniemi, H., Altimir, N., Kolari, P., Kulmala, L., Mäkelä, A., Nikinmaa, E., Perämäki, M., Riutta, T., Tuittila, E-S. & Hari, P., 2008, Proceedings of the Finnish Center of Excellence "Research Unit on Physics, Chemistry and Biology of Atmospheric Composition and Climate Change" activities in 2002-2007 / editors: Markku Kulmala, Jaana Bäck, and Martta Salonen. Finnish Association for Aerosol Research, p. 5-14 10 p. (Report series in aerosol science; no. 94).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

2006

Long-term measurements of CO2 exchange over a boreal lake

Ojala, A., Huotari, J., Peltomaa, E. & Vesala, T., 2006, Proceedings of BACCI, NECC and FCoE activities 2005: Book B. Kulmala, M., Lindroth, A. & Ruuskanen, T. M. (eds.). Helsinki: Finnish Association for Aerosol Research, p. 438-441 4 p. (Report Series in Aerosol Science; no. 81B).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

2005

Application of the micrometeorological EC technique to CO2 flux measurements from a lake

Huotari, J., Kankaala, P., Keronen, P., Ojala, A., Peltomaa, E., Rannik, U. & Vesala, T., 2005, Proceedings of the International Association of Theoretical and Applied Limnology. Vol. 29:2. p. 590-593 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Footprint analysis for eddy covariance measurements on a small boreal lake

Smolander, S., Sogachev, A., Huotari, J., Ojala, A. & Vesala, T., 2005, Reseach Unit on Physics, Chemistry and Biology of Atmospheric Composition and Climate Change: III Progress Report and Proceedings of Seminar in Pallas 29.3.-1.4.2005. Kulmala, M. & Ruuskanen, T. (eds.). Helsinki: Finnish Association for Aerosol Research, p. 275-278 4 p. (Report Series in Aerosol Science; no. 73).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Seasonal and ontogenetic changes in food utilization of Mysis relicta

Ikonen, S., Hakala, I. & Ojala, A., 2005, Proceedings of the International Association of Theoretical and Applied Limnology (SIL). Jones, J. (ed.). p. 764-767 4 p. ( INTERNATIONAL ASSOCIATION OF THEORETICAL AND APPLIED LIMNOLOGY - PROCEEDINGS; vol. 29, no. Part: 2 ).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2004

Mass balance of natural and anthropogenic carbon dioxide flows

Turunen, H., Kobylin, P., Salminen, J., Raudaskoski, R., Suntola, T., Ojala, A., Liukkonen, S., Huttunen, S. & Keiski, R., 2004, Proceeding of the Meeting 'Forests under changing climate, enhanced UV and air pollution': IUFRO 7 Division Forest health Project 7.04.00. Impact of air pollution on forest ecosystems. p. 170-186

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

2003

Multiphase thermodynamics for CO2 in natural systems

Kobylin, P., Salminen, J., Ojala, A. & Liukkonen, S., 2003, Proceedings of the Sixth Finnish Conference of Environmental Sciences. p. 145-146

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Seasonal CO2 fluxes from a boreal lake: preliminary results with eddy covariance technique and on biological activities

Huotari, J., Ojala, A., Rannik, U., Keronen, P. I. R. & Vesala, T., 2003, Proceedings of the Sixth Finnish Conference of Environmental Sciences. p. 113-116

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Spatial and temporal variation in plant-mediated methane emissions from the littoral zone of boreal lakes

Kankaala, P., Bergström, I., Käki, T. & Ojala, A., 2003, Proceedings of the Sixth Finnish Conference of Environmental Sciences. p. 25-27

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

2002

Eddy covariance measurements of CO2 fluxes from a boreal lake in relation to biological activities

Ojala, A., Huotari, J., Rannik, U., Keronen, P. I. R. & Vesala, T., 2002, Symposium on Atmospheric Aerosols and Trace GAs Exchange Research. Finnish Association for Aerosol Research, p. 48-52 (Report Series in Aerosol Science; no. 58).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

2001

Responses of perch Perca fluviatilis populations to catchment forest clearcutting and soil scarification in small lakes in eastern Finland

Rask, M., Nyberg, K., Karppinen, C., Markkanen, S-L., Ojala, A., Lehtovaara, A. & Kenttämies, K., 2001, Proceedings of the International Association of Theoretical and Applied Limnology (SIL).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2000

Methane emissions from a boreal meso-eutrophic lake: an assessment of seasonal and diel variation among emergent vegetation

Ojala, A. & Käki, T., 2000, Proceedings of the International Association of Theoretical and Applied Limnology (SIL). Vol. 27.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

1999

Methane emissions from a vegetated littoral zone of the meso-eutrophic Lake Vesijärvi (southern Finland)

Käki, T., Kankaala, P. & Ojala, A., 1999, Proceedings of the Fourth Finnish Conference of Environmental Sciences: Water and Environmental Engineering. . p. 171-173

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

1997

Changes in water chemistry and macrophyte and algal communities in experimental ponds simulating climate warming in the boreal area

Kankaala, P., Ojala, A., Tulonen, T., Juha, H. & Arvola, L., 1997, Proceedings of the International Association of Theoretical and Applied Limnology (SIL). Vol. 26.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

1995

Effects of catchment forestry on the limnology of small lakes - observations in Kuhmo 1991-1994

Nyberg, K., Rask, M., Markkanen, S-L. & Ojala, A., 1995, Proceedings of the Second Finnish Conference of Environmental Sciences: Microbiological Publications 43/1995. University of Helsinki, p. 297-300

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Temperature and carbon dioxide manipulations for climate change studies in a freshwater ecosystem

Kankaala, P., Ojala, A., Tulonen, T., Haapamäki, J. & Arvola, L., 1995, Ecosystem manipulation experiments: scientific approaches, experimental design and relevant results. Proceedings of the Third International Symposium on Ecosystem Manipulation.: Ecosystem Research Report No 20. p. 293-297

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

1993

Impacts of climatic change on a mesohumic Finnish lake

Kankaala, P., Ojala, A., Tulonen, T. & Arvola, L., 1993, First Finnish Conference of Environmental Sciences : Environmental Reserch in Finland today. Proceedings.. University of Kuopio, p. 67-69

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific