Zobrazeno 1 - 10
of 130
pro vyhledávání: '"J, Hatakka"'
Autor:
M. Honkanen, M. Aurela, J. Hatakka, L. Haraguchi, S. Kielosto, T. Mäkelä, J. Seppälä, S.-M. Siiriä, K. Stenbäck, J.-P. Tuovinen, P. Ylöstalo, L. Laakso
Publikováno v:
Biogeosciences, Vol 21, Pp 4341-4359 (2024)
Oceans alleviate the accumulation of atmospheric CO2 by absorbing approximately a quarter of all anthropogenic emissions. In the deep oceans, carbon uptake is dominated by aquatic phase chemistry, whereas in biologically active coastal seas the marin
Externí odkaz:
https://doaj.org/article/fb201814c0fa4a2cb068fbe8368bda79
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:
J. Walden, L. Pirjola, T. Laurila, J. Hatakka, H. Pettersson, T. Walden, J.-P. Jalkanen, H. Nordlund, T. Truuts, M. Meretoja, K. K. Kahma
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 18175-18194 (2021)
Fluxes of gaseous compounds and nanoparticles were studied using micrometeorological methods at Harmaja in the Baltic Sea. The measurement site was situated beside the ship route to and from the city of Helsinki. The gradient (GR) method was used to
Externí odkaz:
https://doaj.org/article/55aec5252b3348b78529da4a56c83ab3
Autor:
M. Honkanen, J. D. Müller, J. Seppälä, G. Rehder, S. Kielosto, P. Ylöstalo, T. Mäkelä, J. Hatakka, L. Laakso
Publikováno v:
Ocean Science, Vol 17, Pp 1657-1675 (2021)
The direction and magnitude of carbon dioxide fluxes between the atmosphere and the sea are regulated by the gradient in the partial pressure of carbon dioxide (pCO2) across the air–sea interface. Typically, observations of pCO2 at the sea surface
Externí odkaz:
https://doaj.org/article/4862e8d835544ff0a108191efe990eff
Autor:
C. Yver-Kwok, C. Philippon, P. Bergamaschi, T. Biermann, F. Calzolari, H. Chen, S. Conil, P. Cristofanelli, M. Delmotte, J. Hatakka, M. Heliasz, O. Hermansen, K. Komínková, D. Kubistin, N. Kumps, O. Laurent, T. Laurila, I. Lehner, J. Levula, M. Lindauer, M. Lopez, I. Mammarella, G. Manca, P. Marklund, J.-M. Metzger, M. Mölder, S. M. Platt, M. Ramonet, L. Rivier, B. Scheeren, M. K. Sha, P. Smith, M. Steinbacher, G. Vítková, S. Wyss
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 89-116 (2021)
The Integrated Carbon Observation System (ICOS) is a pan-European research infrastructure which provides harmonized and high-precision scientific data on the carbon cycle and the greenhouse gas budget. All stations have to undergo a rigorous assessme
Externí odkaz:
https://doaj.org/article/edd0f0a098ec4c62a6e75d95aab29efa
Autor:
J.-P. Tuovinen, M. Aurela, J. Hatakka, A. Räsänen, T. Virtanen, J. Mikola, V. Ivakhov, V. Kondratyev, T. Laurila
Publikováno v:
Biogeosciences, Vol 16, Pp 255-274 (2019)
The non-uniform spatial integration, an inherent feature of the eddy covariance (EC) method, creates a challenge for flux data interpretation in a heterogeneous environment, where the contribution of different land cover types varies with flow condit
Externí odkaz:
https://doaj.org/article/aaa3406700f5473f820c912c33c53f48
Publikováno v:
Atmospheric Measurement Techniques, Vol 11, Pp 5335-5350 (2018)
In this study, we introduce new observations of sea–air fluxes of carbon dioxide using the eddy covariance method. The measurements took place at the Utö Atmospheric and Marine Research Station on the island of Utö in the Baltic Sea in July–
Externí odkaz:
https://doaj.org/article/7f073e4eb4334698b2a9639eaf3acde3
Autor:
T. Thonat, M. Saunois, P. Bousquet, I. Pison, Z. Tan, Q. Zhuang, P. M. Crill, B. F. Thornton, D. Bastviken, E. J. Dlugokencky, N. Zimov, T. Laurila, J. Hatakka, O. Hermansen, D. E. J. Worthy
Publikováno v:
Atmospheric Chemistry and Physics, Vol 17, Pp 8371-8394 (2017)
Understanding the recent evolution of methane emissions in the Arctic is necessary to interpret the global methane cycle. Emissions are affected by significant uncertainties and are sensitive to climate change, leading to potential feedbacks. A po
Externí odkaz:
https://doaj.org/article/d8e908963a1e4a578f694492a0056abc
Autor:
D. Schmithüsen, S. Chambers, B. Fischer, S. Gilge, J. Hatakka, V. Kazan, R. Neubert, J. Paatero, M. Ramonet, C. Schlosser, S. Schmid, A. Vermeulen, I. Levin
Publikováno v:
Atmospheric Measurement Techniques, Vol 10, Iss 4, Pp 1299-1312 (2017)
Although atmospheric 222radon (222Rn) activity concentration measurements are currently performed worldwide, they are being made by many different laboratories and with fundamentally different measurement principles, so compatibility issues can limit
Externí odkaz:
https://doaj.org/article/637b38d1660c4cdca86d4e322d80eeab
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