Zobrazeno 1 - 10
of 322
pro vyhledávání: '"M. Ueyama"'
Publikováno v:
AGU Advances, Vol 5, Iss 5, Pp n/a-n/a (2024)
Abstract Boreal wildfires modify surface climates affecting plant physiology, permafrost thaw, and carbon fluxes. Post‐fire temperatures vary over decades because of successional vegetation changes. Yet, the underlying biophysical drivers remain un
Externí odkaz:
https://doaj.org/article/e4cfaa03fd1046209bd09b72e39b3254
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
Autor:
K. B. Delwiche, S. H. Knox, A. Malhotra, E. Fluet-Chouinard, G. McNicol, S. Feron, Z. Ouyang, D. Papale, C. Trotta, E. Canfora, Y.-W. Cheah, D. Christianson, Ma. C. R. Alberto, P. Alekseychik, M. Aurela, D. Baldocchi, S. Bansal, D. P. Billesbach, G. Bohrer, R. Bracho, N. Buchmann, D. I. Campbell, G. Celis, J. Chen, W. Chen, H. Chu, H. J. Dalmagro, S. Dengel, A. R. Desai, M. Detto, H. Dolman, E. Eichelmann, E. Euskirchen, D. Famulari, K. Fuchs, M. Goeckede, S. Gogo, M. J. Gondwe, J. P. Goodrich, P. Gottschalk, S. L. Graham, M. Heimann, M. Helbig, C. Helfter, K. S. Hemes, T. Hirano, D. Hollinger, L. Hörtnagl, H. Iwata, A. Jacotot, G. Jurasinski, M. Kang, K. Kasak, J. King, J. Klatt, F. Koebsch, K. W. Krauss, D. Y. F. Lai, A. Lohila, I. Mammarella, L. Belelli Marchesini, G. Manca, J. H. Matthes, T. Maximov, L. Merbold, B. Mitra, T. H. Morin, E. Nemitz, M. B. Nilsson, S. Niu, W. C. Oechel, P. Y. Oikawa, K. Ono, M. Peichl, O. Peltola, M. L. Reba, A. D. Richardson, W. Riley, B. R. K. Runkle, Y. Ryu, T. Sachs, A. Sakabe, C. R. Sanchez, E. A. Schuur, K. V. R. Schäfer, O. Sonnentag, J. P. Sparks, E. Stuart-Haëntjens, C. Sturtevant, R. C. Sullivan, D. J. Szutu, J. E. Thom, M. S. Torn, E.-S. Tuittila, J. Turner, M. Ueyama, A. C. Valach, R. Vargas, A. Varlagin, A. Vazquez-Lule, J. G. Verfaillie, T. Vesala, G. L. Vourlitis, E. J. Ward, C. Wille, G. Wohlfahrt, G. X. Wong, Z. Zhang, D. Zona, L. Windham-Myers, B. Poulter, R. B. Jackson
Publikováno v:
Earth System Science Data, Vol 13, Pp 3607-3689 (2021)
Methane (CH4) emissions from natural landscapes constitute roughly half of global CH4 contributions to the atmosphere, yet large uncertainties remain in the absolute magnitude and the seasonality of emission quantities and drivers. Eddy covariance (E
Externí odkaz:
https://doaj.org/article/1a0b0d8493814f1ab3b2b9bac057e320
Autor:
Y. Yi, J. S. Kimball, J. D. Watts, S. M. Natali, D. Zona, J. Liu, M. Ueyama, H. Kobayashi, W. Oechel, C. E. Miller
Publikováno v:
Biogeosciences, Vol 17, Pp 5861-5882 (2020)
The contribution of soil heterotrophic respiration to the boreal–Arctic carbon (CO2) cycle and its potential feedback to climate change remains poorly quantified. We developed a remote-sensing-driven permafrost carbon model at intermediate scale (
Externí odkaz:
https://doaj.org/article/48cb6c4b1ca242afb3c12b536d6c86dc
Publikováno v:
Atmospheric Chemistry and Physics, Vol 16, Pp 14727-14740 (2016)
To evaluate CO2 emissions in urban areas and their temporal and spatial variability, continuous measurements of CO2 fluxes were conducted using the eddy covariance method at three locations in Sakai, Osaka, Japan. Based on the flux footprint at th
Externí odkaz:
https://doaj.org/article/bfd2f58bbdb74a20af49ad73fdac2871
Autor:
D. Zona, D. A. Lipson, J. H. Richards, G. K. Phoenix, A. K. Liljedahl, M. Ueyama, C. S. Sturtevant, W. C. Oechel
Publikováno v:
Biogeosciences, Vol 11, Iss 20, Pp 5877-5888 (2014)
The importance and consequences of extreme events on the global carbon budget are inadequately understood. This includes the differential impact of extreme events on various ecosystem components, lag effects, recovery times, and compensatory processe
Externí odkaz:
https://doaj.org/article/6c563750dae04c23a6a9f28759d33909
Autor:
K. Ichii, T. Suzuki, T. Kato, A. Ito, T. Hajima, M. Ueyama, T. Sasai, R. Hirata, N. Saigusa, Y. Ohtani, K. Takagi
Publikováno v:
Biogeosciences, Vol 7, Iss 7, Pp 2061-2080 (2010)
Terrestrial biosphere models show large differences when simulating carbon and water cycles, and reducing these differences is a priority for developing more accurate estimates of the condition of terrestrial ecosystems and future climate change. To
Externí odkaz:
https://doaj.org/article/95d0d44635804d52b9ba9751f47a09c0
Autor:
M. Ueyama, K. Ichii, R. Hirata, K. Takagi, J. Asanuma, T. Machimura, Y. Nakai, T. Ohta, N. Saigusa, Y. Takahashi, T. Hirano
Publikováno v:
Biogeosciences, Vol 7, Iss 3, Pp 959-977 (2010)
Larch forests are widely distributed across many cool-temperate and boreal regions, and they are expected to play an important role in global carbon and water cycles. Model parameterizations for larch forests still contain large uncertainties owing t
Externí odkaz:
https://doaj.org/article/2d71274c9d164c3baa0640d68edee999
Autor:
M. Helbig, T. Živković, P. Alekseychik, M. Aurela, T. S. El-Madany, E. S. Euskirchen, L. B. Flanagan, T. J. Griffis, P. J. Hanson, J. Hattakka, C. Helfter, T. Hirano, E. R. Humphreys, G. Kiely, R. K. Kolka, T. Laurila, P. G. Leahy, A. Lohila, I. Mammarella, M. B. Nilsson, A. Panov, F. J. W. Parmentier, M. Peichl, J. Rinne, D. T. Roman, O. Sonnentag, E.-S Tuittila, M. Ueyama, T. Vesala, P. Vestin, S. Weldon, P. Weslien, S. Zaehle
Publikováno v:
Nature Climate Change. 12:743-749
Peatlands have acted as net CO2 sinks over millennia, exerting a global climate cooling effect. Rapid warming at northern latitudes, where peatlands are abundant, can disturb their CO2 sink function. Here we show that sensitivity of peatland net CO2
Publikováno v:
04.02 - Clinical and epidemiological respiratory sleep medicine.