Zobrazeno 1 - 10
of 399
pro vyhledávání: '"O, Peltola"'
Publikováno v:
Atmospheric Measurement Techniques, Vol 15, Pp 2417-2432 (2022)
The structure of the urban boundary layer, and particularly the surface layer, displays significant complexity, which can be exacerbated by coastal effects for cities located in such regions. Resolving the complexity of the coastal urban boundary lay
Externí odkaz:
https://doaj.org/article/f3968f3ce8204afbad4a4e7687003892
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 5071-5088 (2021)
The eddy covariance (EC) technique has emerged as the prevailing method to observe the ecosystem–atmosphere exchange of gases, heat and momentum. EC measurements require rigorous data processing to derive the fluxes that can be used to analyse exch
Externí odkaz:
https://doaj.org/article/c58be732701d4cf38f0c23ceafea754e
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 5089-5106 (2021)
Fluxes measured with the eddy covariance (EC) technique are subject to flux losses at high frequencies (low-pass filtering). If not properly corrected for, these result in systematically biased ecosystem–atmosphere gas exchange estimates. This loss
Externí odkaz:
https://doaj.org/article/e612af47bc204cf1ae5fea69c241ce24
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
Publikováno v:
Biogeosciences, Vol 18, Pp 2003-2025 (2021)
Boreal forest soils are globally an important sink for methane (CH4), while these soils are also capable of emitting CH4 under favourable conditions. Soil wetness is a well-known driver of CH4 flux, and the wetness can be estimated with several terra
Externí odkaz:
https://doaj.org/article/78d1f491cf274bb8b634758865de1719
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 2409-2427 (2021)
The suitability of a fibre-optic distributed temperature sensing (DTS) technique for observing atmospheric mixing profiles within and above a forest was quantified, and these profiles were analysed. The spatially continuous observations were made at
Externí odkaz:
https://doaj.org/article/d960853bfd024f3d8d39ebfbb21c2659
Autor:
O. Peltola, T. Vesala, Y. Gao, O. Räty, P. Alekseychik, M. Aurela, B. Chojnicki, A. R. Desai, A. J. Dolman, E. S. Euskirchen, T. Friborg, M. Göckede, M. Helbig, E. Humphreys, R. B. Jackson, G. Jocher, F. Joos, J. Klatt, S. H. Knox, N. Kowalska, L. Kutzbach, S. Lienert, A. Lohila, I. Mammarella, D. F. Nadeau, M. B. Nilsson, W. C. Oechel, M. Peichl, T. Pypker, W. Quinton, J. Rinne, T. Sachs, M. Samson, H. P. Schmid, O. Sonnentag, C. Wille, D. Zona, T. Aalto
Publikováno v:
Earth System Science Data, Vol 11, Pp 1263-1289 (2019)
Natural wetlands constitute the largest and most uncertain source of methane (CH4) to the atmosphere and a large fraction of them are found in the northern latitudes. These emissions are typically estimated using process (“bottom-up”) or inversio
Externí odkaz:
https://doaj.org/article/e9f9e6f46d294268a5568099fe262f7d
Autor:
E. Männistö, A. Korrensalo, P. Alekseychik, I. Mammarella, O. Peltola, T. Vesala, E.-S. Tuittila
Publikováno v:
Biogeosciences, Vol 16, Pp 2409-2421 (2019)
We measured methane ebullition from a patterned boreal bog situated in the Siikaneva wetland complex in southern Finland. Measurements were conducted on water (W) and bare peat surfaces (BP) in three growing seasons (2014–2016) using floating gas t
Externí odkaz:
https://doaj.org/article/e1f509d42c3b426094cc50fa33d4edaf
Publikováno v:
Geoscientific Model Development, Vol 11, Pp 1199-1228 (2018)
Estimating methane (CH4) emissions from natural wetlands is complex, and the estimates contain large uncertainties. The models used for the task are typically heavily parameterized and the parameter values are not well known. In this study, we pe
Externí odkaz:
https://doaj.org/article/937348202dbf433bb0f75686f2e18747