Zobrazeno 1 - 10
of 112
pro vyhledávání: '"M. Mastepanov"'
Publikováno v:
Weather and Climate Dynamics, Vol 4, Pp 747-771 (2023)
The climate in Northeast Greenland is shaped by complex topography and interaction with the cryosphere. Since the regional ecosystem processes are sensitive to atmospheric stability conditions, it is crucial to capture this complexity including adequ
Externí odkaz:
https://doaj.org/article/fea051b58a884a6bab3a6b358842f67e
Autor:
A.-M. Virkkala, S. M. Natali, B. M. Rogers, J. D. Watts, K. Savage, S. J. Connon, M. Mauritz, E. A. G. Schuur, D. Peter, C. Minions, J. Nojeim, R. Commane, C. A. Emmerton, M. Goeckede, M. Helbig, D. Holl, H. Iwata, H. Kobayashi, P. Kolari, E. López-Blanco, M. E. Marushchak, M. Mastepanov, L. Merbold, F.-J. W. Parmentier, M. Peichl, T. Sachs, O. Sonnentag, M. Ueyama, C. Voigt, M. Aurela, J. Boike, G. Celis, N. Chae, T. R. Christensen, M. S. Bret-Harte, S. Dengel, H. Dolman, C. W. Edgar, B. Elberling, E. Euskirchen, A. Grelle, J. Hatakka, E. Humphreys, J. Järveoja, A. Kotani, L. Kutzbach, T. Laurila, A. Lohila, I. Mammarella, Y. Matsuura, G. Meyer, M. B. Nilsson, S. F. Oberbauer, S.-J. Park, R. Petrov, A. S. Prokushkin, C. Schulze, V. L. St. Louis, E.-S. Tuittila, J.-P. Tuovinen, W. Quinton, A. Varlagin, D. Zona, V. I. Zyryanov
Publikováno v:
Earth System Science Data, Vol 14, Pp 179-208 (2022)
Past efforts to synthesize and quantify the magnitude and change in carbon dioxide (CO2) fluxes in terrestrial ecosystems across the rapidly warming Arctic–boreal zone (ABZ) have provided valuable information but were limited in their geographical
Externí odkaz:
https://doaj.org/article/ba77bf2c227240e2b7f0ed7b871f0264
Publikováno v:
Biogeosciences, Vol 18, Pp 6093-6114 (2021)
The carbon balance of high-latitude terrestrial ecosystems plays an essential role in the atmospheric concentration of trace gases, including carbon dioxide (CO2) and methane (CH4). Increasing atmospheric methane levels have contributed to ∼ 20 % o
Externí odkaz:
https://doaj.org/article/af2e18a74fce481cacdfd0b8c5d34713
Publikováno v:
Earth System Science Data, Vol 12, Pp 2365-2380 (2020)
Arctic and boreal peatlands play a major role in the global carbon (C) cycle. They are particularly efficient at sequestering carbon because their high water content limits decomposition rates to levels below their net primary productivity. Their fut
Externí odkaz:
https://doaj.org/article/cab509fba8bb47958e5c731e842c9c4b
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 11, Iss 1, Pp 293-326 (2019)
Abstract Permafrost soils and arctic wetlands methane emissions represent an important challenge for modeling the future climate. Here we present a process‐based model designed to correctly represent the main thermal, hydrological, and biogeochemic
Externí odkaz:
https://doaj.org/article/238367e0dfeb4ad5a9b4806ffe3b0d07
Publikováno v:
Biogeosciences, Vol 14, Pp 3157-3169 (2017)
The large spatial variability in Arctic tundra complicates the representative assessment of CO2 budgets. Accurate measurements of these heterogeneous landscapes are, however, essential to understanding their vulnerability to climate change. We sur
Externí odkaz:
https://doaj.org/article/34b4ac0d330a4c9ba2ccc789d68c944e
Publikováno v:
The Cryosphere, Vol 10, Iss 4, Pp 1395-1413 (2016)
Snow cover is one of the key factors controlling Arctic ecosystem functioning and productivity. In this study we assess the impact of strong variability in snow accumulation during 2 subsequent years (2013–2014) on the land–atmosphere interaction
Externí odkaz:
https://doaj.org/article/92daf98ef3b544f08e04b214b160ba60
Publikováno v:
Biogeosciences, Vol 13, Iss 4, Pp 903-912 (2016)
The closed chamber technique is widely used to measure the exchange of methane (CH4) and carbon dioxide (CO2) from terrestrial ecosystems. There is, however, large uncertainty about which model should be used to calculate the gas flux from the measur
Externí odkaz:
https://doaj.org/article/54333a28e1bd4e00829360d244b99dba
Autor:
M. Mastepanov, C. Sigsgaard, T. Tagesson, L. Ström, M. P. Tamstorf, M. Lund, T. R. Christensen
Publikováno v:
Biogeosciences, Vol 10, Iss 7, Pp 5139-5158 (2013)
The northern latitudes are experiencing disproportionate warming relative to the mid-latitudes, and there is growing concern about feedbacks between this warming and methane production and release from high-latitude soils. Studies of methane emission
Externí odkaz:
https://doaj.org/article/b0d61d72e51643fe9c0daf8ac40e2e72
Autor:
T. Holst, A. Arneth, S. Hayward, A. Ekberg, M. Mastepanov, M. Jackowicz-Korczynski, T. Friborg, P. M. Crill, K. Bäckstrand
Publikováno v:
Atmospheric Chemistry and Physics, Vol 10, Iss 4, Pp 1617-1634 (2010)
In this study, we present summertime concentrations and fluxes of biogenic volatile organic compounds (BVOCs) measured at a sub-arctic wetland in northern Sweden using a disjunct eddy-covariance (DEC) technique based on a proton transfer reaction mas
Externí odkaz:
https://doaj.org/article/3bc6c78d708a42a0b725b61ec1592f4b