Zobrazeno 1 - 10
of 907
pro vyhledávání: '"J Rinne"'
Publikováno v:
Geoscientific Model Development, Vol 17, Pp 2299-2324 (2024)
The processes responsible for methane (CH4) emissions from boreal wetlands are complex; hence, their model representation is complicated by a large number of parameters and parameter uncertainties. The arctic-enabled dynamic global vegetation model L
Externí odkaz:
https://doaj.org/article/4960fce475e24acf8ff31f1a0cd4341b
Autor:
A.-M. Virkkala, P. Niittynen, J. Kemppinen, M. E. Marushchak, C. Voigt, G. Hensgens, J. Kerttula, K. Happonen, V. Tyystjärvi, C. Biasi, J. Hultman, J. Rinne, M. Luoto
Publikováno v:
Biogeosciences, Vol 21, Pp 335-355 (2024)
Arctic terrestrial greenhouse gas (GHG) fluxes of carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) play an important role in the global GHG budget. However, these GHG fluxes are rarely studied simultaneously, and our understanding of the
Externí odkaz:
https://doaj.org/article/1e0a51ba557a4d169539405bdd95a36a
Autor:
M. Räsänen, R. Vesala, P. Rönnholm, L. Arppe, P. Manninen, M. Jylhä, J. Rikkinen, P. Pellikka, J. Rinne
Publikováno v:
Biogeosciences, Vol 20, Pp 4029-4042 (2023)
Termites play an essential role in decomposing dead plant material in tropical ecosystems and are thus major sources of gaseous C emissions in many environments. In African savannas, fungus-growing termites are among the ecologically most influential
Externí odkaz:
https://doaj.org/article/2c2e3fc6d038436aa79003776156f671
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 7839-7858 (2023)
The ecosystem–atmosphere flux of biogenic volatile organic compounds (BVOCs) has important impacts on tropospheric oxidative capacity and the formation of secondary organic aerosols, influencing air quality and climate. Here we present within-canop
Externí odkaz:
https://doaj.org/article/465edd1cfcf94193be411fa309268755
Autor:
M. Räsänen, M. Aurela, V. Vakkari, J. P. Beukes, J.-P. Tuovinen, P. G. Van Zyl, M. Josipovic, S. J. Siebert, T. Laurila, M. Kulmala, L. Laakso, J. Rinne, R. Oren, G. Katul
Publikováno v:
Hydrology and Earth System Sciences, Vol 26, Pp 5773-5791 (2022)
The role of precipitation (P) variability with respect to evapotranspiration (ET) and its two components, transpiration (T) and evaporation (E), from savannas continues to draw significant research interest given its relevance to a number of ecohydro
Externí odkaz:
https://doaj.org/article/33bdf81467514ca6beb7bf84599a2bc7
Autor:
M. Menoud, C. van der Veen, D. Lowry, J. M. Fernandez, S. Bakkaloglu, J. L. France, R. E. Fisher, H. Maazallahi, M. Stanisavljević, J. Nęcki, K. Vinkovic, P. Łakomiec, J. Rinne, P. Korbeń, M. Schmidt, S. Defratyka, C. Yver-Kwok, T. Andersen, H. Chen, T. Röckmann
Publikováno v:
Earth System Science Data, Vol 14, Pp 4365-4386 (2022)
Recent climate change mitigation strategies rely on the reduction of methane (CH4) emissions. Carbon and hydrogen isotope ratio (δ13CCH4 and δ2HCH4) measurements can be used to distinguish sources and thus to understand the CH4 budget better. The C
Externí odkaz:
https://doaj.org/article/9ae50a7b6c2f4f2d93dd6d0fcd376441
Autor:
J. Rinne, P. Łakomiec, P. Vestin, J. D. White, P. Weslien, J. Kelly, N. Kljun, L. Ström, L. Klemedtsson
Publikováno v:
Biogeosciences, Vol 19, Pp 4331-4349 (2022)
The reasons for spatial and temporal variation in methane emission from mire ecosystems are not fully understood. Stable isotope signatures of the emitted methane can offer clues to the causes of these variations. We measured the methane emission (FC
Externí odkaz:
https://doaj.org/article/17c160f291a14a21975d94b39a038ec4
Autor:
P. Łakomiec, J. Holst, T. Friborg, P. Crill, N. Rakos, N. Kljun, P.-O. Olsson, L. Eklundh, A. Persson, J. Rinne
Publikováno v:
Biogeosciences, Vol 18, Pp 5811-5830 (2021)
The Arctic is exposed to even faster temperature changes than most other areas on Earth. Constantly increasing temperature will lead to thawing permafrost and changes in the methane (CH4) emissions from wetlands. One of the places exposed to those ch
Externí odkaz:
https://doaj.org/article/4fb301e805d44647b9a07e7990f85d7f
Autor:
R. Seco, T. Holst, M. S. Matzen, A. Westergaard-Nielsen, T. Li, T. Simin, J. Jansen, P. Crill, T. Friborg, J. Rinne, R. Rinnan
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 13399-13416 (2020)
Ecosystems exchange climate-relevant trace gases with the atmosphere, including volatile organic compounds (VOCs) that are a small but highly reactive part of the carbon cycle. VOCs have important ecological functions and implications for atmospheric
Externí odkaz:
https://doaj.org/article/3fbae6e752274a5ea7a5aab2290cb772
Publikováno v:
Biogeosciences, Vol 17, Pp 2149-2167 (2020)
Field measurement data on greenhouse gas (GHG) emissions are still scarce for many land-use types in Africa, causing a high level of uncertainty in GHG budgets. To address this gap, we present in situ measurements of carbon dioxide (CO2), nitrous oxi
Externí odkaz:
https://doaj.org/article/f2ba5e2b82ee42c3b2b0b20639006a69