書籍等出版物 Greenhouse gases and energy fluxes at permafrost zone, Arctic Hydrology, Permafrost and Ecosystem Springer 2020(Oct. 01) Author:Ueyama, M., Iwata, H., Kobayashi, H., Euskirchen, E., Merbold, L., Ohta, T., Machimura, T., Zona, D., Oechel, W. C., and Schuur, E. A. G.
論文 Gap-filling eddy covariance methane fluxes: Comparison of machine learning model predictions and uncertainties at FLUXNET-CH4 wetlands Agricultural and Forest Meteorology,in press 2021(Jul.) Author:Irvin, J., Zhou, S., McNicol, G., Lu, F., Liu, V., Fluet-Chouinard, E., Ouyang, Z., Knox, S. H., Lucas-Moffat, A., Trotta, C., Papale, D., Vitale, D., Mammarella, I., Alekseychik, P., Aurela, M., Avati, A., Baldocchi, D., Bansal, S., Bohrer, G., Campbell, D. I., Chen, J., Chu, H., Dalmagro, H. J., Delwiche, K. B., Desai, A. R., Euskirchen, E., Feron, S., Goeckede, M., Heimann, M., Helbig, M., Helfter, C., Hemes, K. S., Hirano, T., Iwata, H., Jurasinski, G., Kalhori, A., and co-authros
Spring onsets of a young forest in interior Alaska determined based on time-lapse camera and eddy covariance measurements Journal of Agricultural Meteorology,in press 2021(May) Author:Kawashima, S., Ueyama, M., Okamura, M., Harazono, Y., Iwata, H., and Kobayashi, H.
FLUXNET-CH4: A global, multi-ecosystem dataset and analysis of methane seasonality from freshwater wetlands Earth System Science Data,in press 2021(May) Author:Delwiche, K. B., Knox, S. H., Malhotra, A., Fluet-Chouinard, E., McNicol, G., Feron, S., Ouyang, Z., Papale, D., Trotta, C., Canfora, E., Cheah, Y.-W., Christianson, D., Alberto, M. C. R., Alekseychik, P., Aurela, M., Baldocchi, D., Bansal, S., Billesbach, D. P., Bohrer, G., Bracho, R., Buchmann, H., Campbell, D. I., Celis, G., Chen, J., Chen, W., Chu, H., Dalmagro, H. J., Dengel, S., Desai, A. R., Detto, M., Dolman, H., Eichelmann, E., Euskirchen, E., Famulari, D., Fuchs, K., and co-authors
Identifying dominant environmental predictors of freshwater wetland methane fluxes across diurnal to seasonal time scales Global Change Biology,in press 2021(May) Author:Knox, S. H., Bansal, S., McNicol, G., Schafer, K., Sturtevant, C., Ueyama, M., Valach, A. C., Baldocchi, D., Delwiche, K., Desai, A. R., Euskirchen, E., Liu, J., Lohila, A., Malhotra, A., Melling, L., Riley, W., Runkle, B. R. K., Turner, J., Vargas, R., Zhu, Q., Alto, T., Fluet-Chouinard, E., Goeckede, M., Melton, J. R., Sonnentag, O., Vesala, T., Ward, E., Zhang, Z., Feron, S., Ouyang, Z., Alekseychik, P., Aurela, M., Bohrer, G., Campbell, D. I., Chen, J., Chu, H., and co-authors
Statistical upscaling of ecosystem CO2 fluxes across the terrestrial tundra and boreal domain: regional patterns and uncertainties Global Change Biology,in press 2021(Apr.) Author:Virkkala, A.-M., Aalto, J., Rogers, B. M., Tagesson, T., Treat, C. C., Natali, S. M., Watts, J. D., Potter, S., Lehtonen, A., Mauritz, M., Schuur, E. A. G., Kochendorfer, J., Zona, D., Oechel, W., Kobayashi, H., Humphreys, E., Goeckede, M., Iwata, H., Lafleur, P., Euskirchen, E. S., Bokhorst, S., Marushchak, M., Martikainen, P. J., Elberling, B., Voigt, C., Biasi, C., Sonnentag, O., Parmentier, F.-J. W., Ueyama, M., Celis, G., St.Loius, V. L., Emmerton, C. A., Peichl, M., Chi, J., and co-authors
Substantial hysteresis in emergent temperature sensitivity of global wetland CH4 emissions Nature Communications,12:2266 2021(Apr.) Author:Chang, K.-Y. , Riley, W., Knox, S., Jackson, R., McNicol, G., Poulter, B., Aurela, M., Baldocchi, D., Bansal, S., Bohrer, G., Campbell, D., Cescatti, A., Chu, H., Delwiche, K., Desai, A., Euskirchen, E., Friborg, T., Gockede, M., Helbig, M., Hemes, K., Hirano, T., Iwata, H., Kang, M., Keenan, T., Krauss, K., Lohila, A., Mammarella, I., Mitra, B., Miyata, A., Nilsson, M. B., Noormets, A., Oechel, W., Papale, D., Peichl, M., Reba, M., Rinne, J., Runkle, B., Ryu, Y., Sachs, T., and co-authors
Lessons learned from more than a decade of greenhouse gas flux measurements at boreal forests in eastern Siberia and interior Alaska Polar Science,27:100607 2021(Mar.) Author:Hiyama, T., Ueyama, M., Kotani, A., Iwata, H., Nakai, T., Okamura, M., Ohta, T., Harazono, Y., Petrov, R. E., and Maximov, T. C.
Representativeness of eddy-covariance flux footprints for areas surrounding AmeriFlux sites Agricultural and Forest Meteorology,301-302:108350 2021(Feb. 14) Author:Chu, H., Luo, X., Ouyang, Z., Chan, W. S., Dengel, S., Biraud, S. C., Torn, M. S., Metzger, S., Kumar, J., Arain, M. A., Arkebauer, T. J., Baldocchi, D., Bernacchi, C., Billesbach, D. and co-authors
Shallow soils are warmer under trees and tall shrubs across Arctic and Boreal ecosystems Environmental Research Letters,16:015001 2020(Dec. 18) Author:Kropp, H., Loranty, M. M., Natali, S. M., Kholodov, A. L., Rocha, A. V., Myers-Smith, I. H., Abbott, B. W., Abermann, J., Blanc-Betes, D., Blok, D., Blume-Werry, G., Boike, J. and co-authors
Cooling and moistening of the planetary boundary layer in interior Alaska due to a postfire change in surface energy exchange Journal of Geophysical Research - Atmospheres,125:e2020JD032968 2020(Sep. 09) Author:Ueyama, M., Yamamori, T., Iwata, H., and Harazono, Y.
Temporal and spatial variations in methane emissions from the littoral zone of a shallow mid-latitude lake with steady methane bubble emission areas Agricultural and Forest Meteorology,295:108184 2020(Sep. 03) Author:Iwata, H., Nakazawa, K., Sato, H., Itoh, M., Miyabara, Y., Hirata, R., Takahashi, Y., Tokida, T., and Endo, R.
Environmental controls of diffusive and ebullitive methane emissions at a sub-daily time scale in the littoral zone of a mid-latitude shallow lake Journal of Geophysical Research - Biogeosciences,125:e2020JG005753 2020(Aug. 24) Author:Taoka, T., Iwata, H., Hirata, R., Takahashi, Y., Miyabara, Y., and Itoh, M.
The biophysical climate mitigation potential of boreal peatlands during the growing season Environmental Research Letters 2020(Aug. 01) Author:Helbig, M., Waddington, J., Alekseychik, P., Amiro, B., Aurela, M., Barr, A., Black, T., Carey, S., Chen, J., Chi, J., Desai, A., Dunn, A., Euskirchen, E., Flanagan, L., Friborg, T. and co-authors
Comprehensive assessments of carbon dynamics in an intermittently-irrigated rice paddy Agricultural and Forest Meteorology,285-286:107933 2020(May) Author:Hwang, Y., Ryu, Y., Huang, Y., Kim, J., Iwata, H., and Kang, M.
Increasing contribution of peatlands to boreal evapotranspiration in a warming climate Nature Climate Change,10:555-560 2020(May) Author:Helbig, M., Waddington, J. M., Alekseychik, P., Amiro, B. D., Aurela, M., Barr, A. G., Black, T. A., Blanken, P. D., Carey, S. K., Chen, J., Chi, J., Desai, A. R., Dunn, A., and co-authors
FLUXNET-CH4 Synthesis Activity: Objectives, Observations, and Future Directions Bulletin of the American Meteorological Society,100:2607-2632 2019(Dec.) Author:Knox, S. H., Jackson, R. B., Poulter, B, McNicol, G., Fluet-Chouinard, E., Zhang, Z., Hugelius, G., Bousquet, P., Canadell, J. G., Saunois, M., Papale, D., Chu, H., Keenan, T. F., Baldocchi, D., Mammarella, I., Trotta, C., Aurela, M., Bohrer, G., Campbell, D., Cescatti, A., Chamberlain, S., Chen, J., Dengel, S., Desai, A. R., Euskirchen, E., Friborg, T., Goded, I., Goeckede, M., Heimann, M., Helbig, M., Hirano, T., Hollinger, D., Iwata, H., Kang, M., Klatt, J., Krauss, K. W., Kutzbach, L., Lohila, A., Magliulo, V., Mitra, B., Morin, T. H., Nilsson, M. B., Niu, S., Noormets, A., Oechel, W. C., Peichl, M., Peltola, O., Reba, M. L., Richardson, A., Runkle, B. R. K., Ryu, Y., Sachs, T., Schäfer, K. V. R., Schmid, H. P., Shurpali, H., Sonnentag, O., Tang, A. C. I., Torn, M., Ueyama, M., Vargas, R., Vesala, T., Ward, E. J., Windham-Myers, L., Wohlfahrt, G., and Zona, D.
Carbon dioxide balance in early-successional forests after forest fires in interior Alaska Agricultural and Forest Meteorology,275:196-207 2019(May) Author:Ueyama, M., Iwata, H., Nagano, H., Tahara, N., Iwama, C., Harazono, Y.
Partitioning eddy-covariance methane fluxes from a shallow lake into diffusive and ebullitive fluxes Boundary-Layer Meteorology,169:413-428 2018(Jun.) Author:Iwata, H., Hirata, R., Takahashi, Y., Miyabara, Y., Itoh, M., and Iizuka, K.
Leaf- and ecosystem-scale photosynthetic parameters for the overstory and understory of boreal forests in interior Alaska Journal of Agricultural Meteorology,74(2):79-86 2018(Apr.) Author:Ueyama, M., Tahara, N., Nagano, H., Makita, N., Iwata, H., and Harazono, Y.
Exploring sub-daily to seasonal variations in methane exchange in a single-crop rice paddy in central Japan Atmospheric Environment,179:156-165 2018(Feb.) Author:Iwata, H., Mano, M., Ono, K., Tokida, T., Kawazoe, T., Kosugi, Y., Sakabe, A., Takahashi, K., and Miyata, A.
Evaluating the relationship between wildfire extent and nitrogen dry deposition in a boreal forest in interior Alaska Polar Science,11:96-104 2017(Mar.) Author:Nagano, H. and Iwata, H.
A multi-scale comparison of modeled and observed seasonal methane emissions in northern wetlands Biogeosciences,13:5043-5056 2016(Aug.) Author:Xu, X., Riley, W. J., Koven, C. D., Billesbach, D. P., Chang, R. Y.-W., Commane, R., Euskirchen, E. S., Hartery, S., Harazono, Y., Iwata, H., McDonald, K. C., Miller, C. E., Oechel, W. C., Poulter, B., Raz-Yaseef, N., Sweeney, C., Torn, M., Wofsy, S. C., Zhang, Z., and Zona D.
Optimization of a biochemical model with eddy covariance measurements in black spruce forests of Alaska for estimating CO2 fertilization effects Agricultural and Forest Meteorology,222:98-111 2016(Mar.) Author:Ueyama, M., Tahara, T., Iwata, H., Euskirchen, E. S., Ikawa, H., Kobayashi, H., Nagano, H., Nakai, T., Harazono, Y.
Latitudinal gradient of spruce forest understory and tundra phenology in Alaska as observed from satellite and ground-based data Remote Sensing of Environment,177:160-170 2016(Feb.) Author:Kobayashi, H., Yunus, A. P., Nagai, S., Sugiura, K., Kim, Y., Van Dam, B., Nagano, H., Zona, D., Harazono, Y., Bret-Harte, M. S., Ichii, K., Ikawa, H., Iwata, H., Oechel, W. C., Ueyama, M., Suzuki, R.
Methane exchange in a poorly-drained black spruce forest over permafrost observed using the eddy covariance technique Agricultural and Forest Meteorology,214-215:157-168 2015(Aug.) Author:Iwata, H., Harazono, Y., Ueyama, M., Sakabe, A., Nagano, H., Kosugi, Y., Takahashi, K., Kim, Y.
Temperature regimes and turbulent heat fluxes across a heterogeneous canopy in an Alaskan boreal forest Journal of Geophysical Research - Atmospheres,120(4):1348-1360 2015 Author:Starkenburg, D., Fochesatto, G. J., Cristobal, J., Prakash, A., Gens, R., Alfieri, J., Nagano, H., Harazono, Y., Iwata, H., and Kane, D. L.
Effects of water vapor dilution on trace gas flux, and practical correction methods Journal of Agricultural Meteorology,71(2):65-76 2015 Author:Harazono, Y., Iwata, H., Sakabe, A., Ueyama, M., Takahashi, K., Nagano, H., Nakai, T., and Kosugi, Y.
Change in surface energy balance in Alaska due to fire and spring warming, based on upscaling eddy covariance measurements Journal of Geophysical Research - Biogeosciences,119:1947-1969 2014 Author:Ueyama, M., Ichii, K., Iwata, H., Euskirchen, E. S., Zona, D., Rocha, A. V., Harazono, Y., Iwama, C., Nakai, T., and Oechel, W. C.
An inter-comparison between Gill and Campbell sonic anemometers Agricultural and Forest Meteorology,195-196:123-131 2014 Author:Nakai, T., Iwata, H., Harazono, Y., and Ueyama, M.
Permafrost thaw affects boreal deciduous plant transpiration throught increased soil water, deeper thaw, and warmer soils Ecohydrology,7:982-997 2014 Author:Cable, J. M., Ogle, K., Bolton, W. R., Bentley, L. P., Romanovsky, V., Iwata, H., Harazono, Y., and Welker, J.
Cross-validation of open-path and closed-path eddy-covariance techniques for observing methane fluxes Boundary-Layer Meteorology,151:95-118 2014 Author:Iwata, H., Kosugi, Y., Ono, K., Mano, M., Sakabe, A., Miyata, A., and Takahashi, K.
Autumn warming reduces the CO2 sink of a black spruce forest in interior Alaska based on a nine-year eddy covariance measurement Global Change Biology,20:1161-1173 2014 Author:Ueyama, M., Iwata, H., and Harazono, Y.
Upacaling terrestrial carbon dioxide fluxes in Alaska with satellite remote sensing and support vector regression Journal of Geophysical Research: Biogeosciences,118:1266-1281 2013 Author:Ueyama, M., Ichii, K., Iwata, H., Euskirchen, E. S., Zona, D., Rocha, A. V., Harazono, Y., Iwama, C., Nakai, T., and Oechel, W.
Growing season and spatial variations of carbon fluxes of Arctic and boreal ecosystems in Alaska Ecological Applications,23:1798-1816 2013 Author:Ueyama, M., Iwata, H., Harazono, Y., Euskirchen, E. S., Oechel, W. C., and Zona, D.
A variation in the fraction of absorbed photosynthetically active radiation and a comparison with MODIS data in burned black spruce forests of interior Alaska Polar Science,7:113-124 2013 Author:Iwata, H., Ueyama, M., Iwama, C., and Harazono, Y.
Sensitivity and offset changes of a fast-response open-path gas analyzer during long-term observations in an Arctic environment Journal of Agricultural Meteorology,68:175-181 2012 Author:Iwata, H., Harazono, Y., and Ueyama, M.
Climatic physical snowpack properties for large-scale modeling examined by observations and a physical model Polar Science,6:79-95 2012 Author:Saito, K., Yamaguchi, S., Iwata, H., Harazono, Y., Kosugi, K., Lehning, M., and Shulski, M.
Seasonal and interannual variation in net ecosystem production of an evergreen needleleaf forest Journal of Forest Research,17:283-295 2012 Author:Mizoguchi, Y., Ohtani, Y., Takanashi, S., Iwata, H., Yasuda, Y., and Nakai, Y.
The role of permafrost in water exchange of a black spruce forest in Interior Alaska Agricultural and Forest Meteorology,161:107-115 2012 Author:Iwata, H., Harazono, Y., and Ueyama, M.
Calculating downward longwave radiation under clear and cloudy conditions over a tropical lowland forest site: an evaluation of model schemes for hourly data Theoretical and Applied Climatology,107:461-477 2012 Author:Marthews, T., Malhi, Y., and Iwata, H.
Quick recovery of carbon dioxide exchanges in a burned black spruce forest in Interior Alaska SOLA,7:105-108 2011 Author:Iwata, H., Ueyama, M., Harazono, Y., Tsuyuzaki, S., Kondo, M., and Uchida, M.
Importance of mixing ratio for a long-term CO2 flux measurement with a closed-path system Tellus,63B:302-308 2011 Author:Nakai, T., Iwata, H., and Harazono, Y.
Climatic characteristics of the Fujiyoshida forest meteorology research site Mount Fuji Research,5:1-6 2011 Author:Mizoguchi, Y., Ohtani, Y., Nakai, Y., Iwata, H., Takanashi, S., Yasuda, Y., Nakano, T., Yasuda, T., Watanabe, T.
Influence of source/sink distributions on flux-gradient relationships in the roughness sublayer over an open forest canopy under unstable conditions Boundary-Layer Meteorology,136:391-405 2010 Author:Iwata, H., Harazono, Y. and Ueyama, M.
Vertical length scale of transporting eddies for sensible heat in the unstable roughness sublayer over a forest canopy Journal of Agricultural Meteorology,65:1-9 2009 Author:Iwata, H., Asanuma, J., Ohtani, Y., Mizoguchi, Y. and Yasuda, Y.
Gap-filling measurements of carbon dioxide storage in tropical rainforest canopy airspace Agricultural and Forest Meteorology,132:305-314 2005 Author:Iwata, H., Malhi, Y. and von Randow, C.
Scaling up rice methane fluxes in monsoon Asia through data-driven model AGU fall meeting 2020 2020(Dec.) Presenter:Yang, Z., Jackson, R. B., Runkle, B., Papale, D., McNicol, G., Fluet-Chouinard, E., Knox, S., Alberto, M. C. R., Baldocchi, D. D., Cescatti, A., Chen, C.-L., Dong, J., Guo, H., and co-authors
Methane emissions from rice production: a synthesis of 24 eddy covariance sites AGU Fall Meeting 2020 2020(Dec.) Presenter:Runkle, B., Yang, Z., Jackson, R. B., Knox, S., McNicol, G., Papale, D., Cescatti, A., Iwata, H., Ryu, Y., Kang, M., Kim, J., Zhang, Y., Ju, W., Alberto, M. C. R., Baldocchi, D. D., and co-authors
Peatland-dominated boreal ecoregions at risk of drying in a warmer climate AGU Fall Meeting 2019 2019(Dec.) Presenter:Helbig, M., Waddington, J. M., Alekseychik, P., Amiro, B. D., Aurela, M., Barr, A., Black, T. A., Blanken, P., Carey, S. K., Chen, J., Chi, J., Desai, A. R., Dunn, A. L., Euskirchen, E. S., Friborg, T., Flanagan, L. B., Forbrich, I., Grelle, A., Harder, S. R., Heliasz, M., Humphreys, E., Ikawa, H., Iwata, H., Isabelle, P.-E., Jassal, R., Kurbatova, J., Korkiakoski, M., Kutzbach, L., Lindroth, A., Ohta, T., Lofvenius, M. O., Lohila, A., Maximov, T. C., Mammarella, I., Marsh, P., Melton, J., Moore, P., Nadeau, D., Nicholls, E., Nilsson, M. B., Peichl, M., Petrone, R. M., Petrov, R. E., Quinton, W. L., Roulet, N. T., Reed, D. E., Runkle, B., Rutgersson, A., Sahlee, E., Sonnentag, O., Strachan, I. B., Taillardat, P., Tuittila, E.-S., Tuovinen, J.-P., Turner, J., Ueyama, M., Varlagin, A., Wilmking, M. and Wofsy, S. C.
Driving Factors of Changes in Evapotranspiration from a Red Pine Ecosystem AsiaFlux Workshop 2019 2019(Oct.) Presenter:Suzuki, T. Iwata, H., Takanashi, S., Miyama, T., Mizoguchi, Y., Okano, M., Kominami, Y., Yoshifuji, N., and Nakano, T.
The controlling factors of diffusive and ebullitive methane emission on sub-daily time scale at a mid-latitude shallow lake AsiaFlux Workshop 2019 2019(Oct.) Presenter:Taoka, T., Iwata, H., Miyabara, Y., Hirata, R., Takahashi, Y.
Simulation of methane dynamics in a mid-latitude eutrophic lake with constraints using incubation data AsiaFlux Workshop 2019 2019(Oct.) Presenter:Iwata, H., Nakano, S., Stepanenko, V., Kobayashi, D., Taoka, T., Itoh, M., Miyabara, Y., Hirata, R., and Takahashi, Y.
Estimation of greenhouse gas budget over high-latitude ecosystems using a process-based ecosystem model, VISIT AsiaFlux Workshop 2019 2019(Oct.) Presenter:Okamura, M., Ueyama, M., Ito, A., Ichii, K., Iwata, H., Euskirchen, E. S., Goeckede, M., Sonnentag, O., Flanagan, L. B., Harazono, Y., Helbig, M., Hirano, T., Oechel, W. C., and Zona, D.
Estimating northern ecosystems methane flux based on a satellite data driven model, TCF AsiaFlux Workshop 2019 2019(Oct.) Presenter:Luo, J., Ueyama, M., Okamura, M., Watts, J. D., Iwata, H., Euskirchen, E. S., Goeckede, M., Sonnentag, O., Flanagan, L. B., Harazono, Y., Helbig, M., Hirano, T., Oechel, W. C., and Zona, D.
Long term variation of CO2 flux at cool temperate red pine forest in Japan AsiaFlux Workshop 2019 2019(Oct.) Presenter:Kominami, Y., Miyama, T., Yoshifuji, N., Okano, M., Yasuda, Y., Yamanoi, K., Mizoguchi, Y., Takanashi, S., Kitamura, K., Nakano, T., Yasuda, T., Wada, R., Iwata, H., Watanabe, T., Nakai, Y., Ohtani, Y.
Estimating CH4 fluxes across high latitude ecosystems using VISIT model iLEAPS/IGAC-Japan meeting 2019 2019(Sep.) Presenter:Okamura, M., Ueyama, M., Ito, A., Ichii, K., Iwata, H., Euskirchen, E. S., Goeckede, M., Sonnentag, O., Flanagan, L. B., Harazono, Y., Helbig, M., Hirano, T., Oechel, W. C., Zona, D.
Current status of CO2 balance in the Arctic black spruce forest based on the long-term observation and the future progress Korean Society of Agricultural and Forest Meteorology 20th Anniversary Symposium 2019(Aug. 30) Presenter:Harazono, Y., Ueyama, M., Iwata, H., and Hiyama, T.
Search for microbial CH4 production processes in lake sediments and surface water associated with cyanobacterial bloom JpGU-AGU joint meeting 2019 2019(May) Presenter:Matsushita, M., Takano, Y., Imachi, H., Urai, A., Park, H.-D., Iwata, H., Ohkouchi, N.
高緯度生態系に対する生態系モデルVISITのパラメータリゼーション 日本農業気象学会2019年全国大会 2019(Mar.) Presenter:岡村幹太， 植山雅仁，伊藤昭彦，岩田拓記，Goeckede, M., Sonnentag, O., Helbig, M., 原薗芳信，平野高司，Euskirchen, E., Flanagan, L. B., Oechel, W. C., Zona, D.
The influence of vegetation on shallow soil and air temperature coupling: a Pan-Arctic data synthesis 2018 AGU Fall meeting 2018(Dec.) Presenter:Kropp, H., Loranty, M. M., Natali, S., Kholodov, A. L., Abbott, B., Abermann, J., Blanc-Betes, E., Blok, D., Blume-Werry, G., Boike, J., Breen, A. L., Cahoon, S. M. P., Christiansen, C., Douglas, T. A., Elberling, B., Epstein, H. E., Euskirchen, E. S., Frost, G., Goeckede, M., Gough, L., Heijmans, M., Hjort, J., Hoye, T. T., Humphreys, E., Iversen, C. M., Iwata, H., Jones, B. M., Jorgenson, T., Juszak, I., Kim, Y., Lafleur, P., Laundre, J., Lund, M., Mamet, S., Mauritz, M., Michelsen, A., Myers-Smith, I. H., O'Donnell, J., Olefeldt, D., Phoenix, G. K., Rocha, A. V., Romanovsky, V. E., Salmon, V. G., Sannel, B., Schaepman-Strub, G., Smith, S. L., Sonnentag, O., Tape, K. D., Torn, M. S., Vaughn, L. S., Williams, M., Wilson, C. J.
Modeling greenhouse gas budget in the northern ecosystems using a process-based ecosystem model, VIST 2018 AGU Fall meeting 2018(Dec.) Presenter:Okamura, M., Ueyama, M., Ito, A., Iwata, H., Euskirchen, E., Goeckede, M., Sachs, T., Sonnentag, O., Emmerton, C., Flanagan, L., Harazono, Y., Helbig, M., Hirano, T., St. Louis, V., Nadeau, D., Oechel, W., Zona, D.
Constraining methane dynamics modules in ecosystem models using eddy flux measurements at northern ecosystems 2018 AGU Fall meeting 2018(Dec.) Presenter:Ueyama, M., Okamura, M., Ito, A., Iwata, H., Euskirchen, E., Goeckede, M., Sonnentag, O., Emmerton, C., Flanagan, L., Harazono, Y., Helbig, M., Hirano, T., Louis, V. St., Nadeau, D., Oechel, W., Zona, D.
Response of thermal regime of a shallow mid-latitude lake to climate change 2018 AGU Fall meeting 2018(Dec.) Presenter:Kobayashi, D., Iwata, H., Stepanenko, V., and Miyabara, Y.
Eddy covariance and biogeochemical observations of methane dynamics in a shallow mid-latitude lake in Japan OzFlux-AsiaFlux Joint Conference 2018(Aug. 23) Presenter:Iwata, H., Hirata, R., Takahashi, Y., Itoh, M., Miyabara, Y., and Kobayashi, D.
Driving factors of the change in evapotranspiration from a red pine ecosystem OzFlux-AsiaFlux Joint Conference 2018(Aug. 23) Presenter:Suzuki, T., Iwata, H., Takanashi, S., Miyama, T., Mizoguchi, Y., Okano, M., Kominami, Y., and Yoshifuji, N.
Long-term monitoring carbon balance at a black spruce forest in interior Alaska Fifth International Symposium on Arctic Research 2018(Jan. 16) Presenter:Ueyama, M., Iwata, H., Nagano, H., and Harazono, Y.
Methane production potential and microbial community structure for different forest soils AGU Fall Meeting 2017 2017(Dec.) Presenter:Matsumoto, Y., Ueyama, M., Kominami, Y., Endo, R., Tokumoto, H., Hirano, T., Takagi, K., Takahashi, Y., Iwata, H., and Harazono, Y.
Evaluation of methane emission from a mid-latitude lake with the eddy covariance technique Physical Processes in Natural Waters 2017(Aug. 22) Presenter:Iwata, H., Hirata, R., Takahashi, Y., Itoh, M., Iizuka, K., Miyabara, Y., Kobayashi, D., and Tokida, T.
Simulation of heat exchange and water temperature profile in a shallow mid-latitude lake AsiaFlux Workshop 2017 2017(Aug. 17) Presenter:Kobayashi, D., Iwata, H., Miyabara, Y., and Stepanenko, V.
Evaluation of methane emission from a mid-latitude lake with the eddy covariance technique AsiaFlux Workshop 2017 2017(Aug. 17) Presenter:Iwata, H., Hirata, R., Takahashi, Y., Itoh, M., Iizuka, K., Miyabara, Y., Nakazawa, K., Satoh, H., Kobayashi, D., and Tokida, T.
Response of methane emission from a poorly-drained black spruce forest over permafrost in an interior Alaska The 2nd Asian Conference on Permafrost 2017(Jul.) Presenter:Igarashi, Y., Iwata, H., Ueyama, M., Hiyama, T., Futakuchi, Y., Matsumoto, Y., and Harazono, Y.
Response of methane emission from a poorly-drained black spruce forest over permafrost in an Interior Alaska The Seventh Symposium on Polar Science 2016(Dec.) Presenter:Igarashi, Y., Iwata, H., Ueyama, M., Hiyama, T., Futakuchi, Y., Matsumoto, Y., and Harazono, Y.
Carbon and water exchange studies of black spruce forests in Interior Alaska International Russian-Japanese conference of young polar scientists 2016(Oct. 11) Presenter:Iwata, H.
Regional CO2 uptake estimation applying the light use efficiency model with MODIS and field data to examine wildfire effects in Alaskan boreal forest Arctic Science Summit Week 2015 2015(Apr.) Presenter:Otsuki, M., Iwata, H., Iwata, T., Nagano, H., Harazono, Y., Iwama, C., and Ueyma, M.
Methane exchange in a poorly-drained black spruce forest over permafrost observed with the eddy covariance technique Arctic Science Summit Week 2015 2015(Apr.) Presenter:Iwata, H., Harazono, Y., Ueyama, M., Sakabe, A., Nagano, H., Kosugi, Y., Takahashi, K., and Kim, Y.
Methane exchange in a poorly-drained black spruce forest over permafrost observed with the eddy covariance technique Arctic Change 2014 2014(Dec.) Presenter:Iwata, H., Harazono, Y., Ueyama, M., Sakabe, A., Nagano, H., Kosugi, Y., Takahashi, K., Kim, Y.
AsiaFlux Workshop 2015 -Challenges and Significance of Ecosystem Research in Asia to Better Understand Climate Change- 参加報告 生物と気象,16:D1-5 2016(Feb.) Author:岩田拓記，沖元洋介，佐伯田鶴，和田龍一，平田竜一
A year-round flux observation at an area burned by wildfire in Interior Alaska AsiaFlux Newsletter,32:13-18 2011 Author:Iwata, H., Ueyama, M., and Harazono, Y.
Comparison of the characteristics of five quantum sensors Bulletin of FFPRI,9:113-120 2010 Author:Mizoguchi, Y., Ohtani, Y., Aoshima, T., Hirakata, A., Yuta, S., Takanashi, S., Iwata, H., and Nakai, Y.
Development of portable CO2 flux observation system using a closed-path gas analyzer for intercomparison Bulletin of FFPRI,9:31-36 2010 Author:Ohtani, Y., Mizoguchi, Y., Takanashi, S., Yasuda, Y., Iwata, H., Nakai, Y., Yuta, S., and Yamanoi, K.
Continuous methane flux observation, and validation of carbon, water and energy exchanges during forest recovery from fire in black spruce forests in Alaska IJIS Newsletter,9:2-3 2009 Author:Iwata, H.
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