Zobrazeno 1 - 10
of 174
pro vyhledávání: '"T A, Christensen"'
Publikováno v:
Biogeosciences, Vol 19, Pp 861-875 (2022)
Predicted intensified climate warming will likely alter the ecosystem net carbon (C) uptake of the Qinghai–Tibetan Plateau (QTP). Variations in C sink–source responses to climate warming have been linked to water availability; however, the mechan
Externí odkaz:
https://doaj.org/article/8265e1e7dab4477085d51703457faef2
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
Autor:
E. López-Blanco, J.-F. Exbrayat, M. Lund, T. R. Christensen, M. P. Tamstorf, D. Slevin, G. Hugelius, A. A. Bloom, M. Williams
Publikováno v:
Earth System Dynamics, Vol 10, Pp 233-255 (2019)
There is a significant knowledge gap in the current state of the terrestrial carbon (C) budget. Recent studies have highlighted a poor understanding particularly of C pool transit times and of whether productivity or biomass dominate these biases. Th
Externí odkaz:
https://doaj.org/article/fadef2f28c7a4ef49166a47425f3f63a
Autor:
Mikkel Tang, Stefan A. Schäffer, Asbjørn A. Jørgensen, Martin R. Henriksen, Bjarke T. R. Christensen, Jörg H. Müller, Jan W. Thomsen
Publikováno v:
Physical Review Research, Vol 3, Iss 3, p 033258 (2021)
Lasing in the bad cavity regime has promising applications in precision metrology due to the reduced sensitivity to cavity noise originating from cavity length fluctuations. Here we investigate the spectral properties and phase behavior of pulsed las
Externí odkaz:
https://doaj.org/article/7e48fddb178d45acbaf1e796c4a51298
Autor:
E. López-Blanco, M. Lund, M. Williams, M. P. Tamstorf, A. Westergaard-Nielsen, J.-F. Exbrayat, B. U. Hansen, T. R. Christensen
Publikováno v:
Biogeosciences, Vol 14, Pp 4467-4483 (2017)
An improvement in our process-based understanding of carbon (C) exchange in the Arctic and its climate sensitivity is critically needed for understanding the response of tundra ecosystems to a changing climate. In this context, we analysed the net e
Externí odkaz:
https://doaj.org/article/75988d6b076340deb35af03c89e6af4c
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
Autor:
V. Yu. Starostina, T. H. Christensen
Publikováno v:
XXI Century. Technosphere Safety. 7:142-150
One of the important tasks of the environmental policy of the Russian Federation is to implement an integrated regional waste management system through the active involvement of production and consumption waste in the economic turnover, the use of en
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