2026-05-10T17:48:48Zhttps://ads.nipr.ac.jp/portal/oaiA20241210-0302025-06-11T06:37:13ZFLUXNETA20241210-030engutf8Takashi HiranoResearch Faculty of Agriculture, Laboratory of Ecological and Environmental Physics, Hokkaido University+81-11-706-3689Kita 9, Nishi 9, Kita-kuSapporoHokkaido060-8589Japanhirano@agr.hokudai.ac.jpauthor2025-04-16ADS Metadata Standards(Based on ISO19139:2007)1.0JapanFlux2024 JP-Tmd Tomakomai Flux Research Site Disturbed2025-04-23creation2025-04-04publicationrevision1.00A20241210-030Based on the joint project system with the Hokkaido Regional Forest Office, we have conducted observation projects in cooperation with Hokkaido University (Field Science Center for Northern Biosphere and Faculty of Agriculture), Hokkaido Government (Environmental Science Research Center), and other organizations, including the National Institute of Advanced Industrial Science and Technology, Faculty of Agriculture, Osaka Prefecture University, and other government experimental research institutes and universities. However, the tower collapsed due to Typhoon No. 18 in 2004, making it impossible to continue observations under the same conditions.
The typhoon in September 2004 caused large-scale windfall damage in forests throughout the province (area of damage: 37,000 ha in all). The Tomakomai observation site also suffered about 90% wind-damage and conventional observations can no longer continue. However, in order to elucidate the changes in the carbon budget and its mechanism during the vegetation recovery process, we are currently cooperating with Hokkaido University (Graduate School of Agriculture) on the basis of a joint project system with the Hokkaido Regional Forest Office, to continue observations of CO2, water vapor, and Energy flux observation has been continued. The turbulent fluxes of sensible heat, latent heat, CO2 were measured using the eddy covariance system.
After the wind damage, winter observations were not conducted, but a tower was erected in 2012, and observations have been conducted year-round since 2013.Takashi HiranoResearch Faculty of Agriculture, Laboratory of Ecological and Environmental Physics, Hokkaido University+81-11-706-3689Kita 9, Nishi 9, Kita-kuSapporoHokkaido060-8589Japanhirano@agr.hokudai.ac.jpprincipalInvestigatorRyuichi HirataNational Institute for Environmental Studies (NIES)+81-29-850-220216-2 OnogawaTsukubaIbaraki305-8506Japanhirata.ryuichi@nies.go.jpATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE > AIR TEMPERATUREATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > HUMIDITY > RELATIVE HUMIDITYATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND SPEEDATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND DIRECTIONATMOSPHERE > ATMOSPHERIC RADIATION > LONGWAVE RADIATIONATMOSPHERE > ATMOSPHERIC RADIATION > SHORTWAVE RADIATIONATMOSPHERE > ATMOSPHERIC RADIATION > NET RADIATIONATMOSPHERE > PRECIPITATION > PRECIPITATION AMOUNTLAND SURFACE > SOILS > SOIL TEMPERATURELAND SURFACE > SOILS > SOIL MOISTURE/WATER CONTENTLAND SURFACE > SOILS > SOIL HEAT BUDGETNASA / GCMD Keywords Version 10.52008-02-05revisionJP/MEXT/NIPRNASA / GCMD Keywords Version 10.52008-02-05revisionFluxnetNASA / GCMD Keywords Version 10.52008-02-05revisionCO2 ANALYZERSNASA / GCMD Keywords Version 10.52008-02-05revisionFixed Observation StationsGround-Based ObservationsNASA / GCMD Keywords Version 10.52008-02-05revisionCONTINENT > ASIA > EASTERN ASIA > JAPANNASA / GCMD Keywords Version 10.52008-02-05revisionWorld > Asia > Eastern Asia > JapanISO3166-1 Country codesClimate ChangeBiodiversity and Ecosystem SustainabilityWater Resources ManagementGEOSS themes V2CO2 FluxH2O FluxEddy Covariance methodClosed-path CO2/H2O analyzerOpen-path CO2/H2O analyzertyphoonCLIMATE_KOEPPEN: DfbIGBP:DBFVolcanogenous regosolJSPS KAKENHI 17310017JSPS KAKENHI 25241002JSPS KAKENHI 17K20037JSPS KAKENHI 22H05706TowerFree KeywordCC BY(http://creativecommons.org/licenses/by/4.0/)engutf8climatologyMeteorologyAtmosphere141.523147141.52314742.73591142.7359112005-07-31T03:00:00Z2023-12-31T02:30:00ZUeyama, M., Takao, Y., Yazawa, H., Tanaka, M., Yabuki, H., Kumagai, T., Iwata. H., Awal, M.. A., Du, M., Harazono, Y., Hata, Y., Hirano, T., Hiura, T., Ide, R., Ishida, S., Ishikawa, M., Kitamura, K., Kominami, Y., Komiya, S., Kotani, A., Inoue, Y., Machimura, T., Matsumoto, K., Matsuura, Y., Mizoguchi, Y., Murayama, S., Nagano, H., Nakai, T., Nakaji, T., Nakaya, K., Ohkubo, S., Ohta, T., Ono, K., Saitoh, T. M., Sakabe, A., Shimizu, T., Shimoda, S., Sugita, M., Takagi, K., Takahashi, Y., Takamura, N., Takanashi, S., Takimoto, T., Yasuda, Y., Wang, Q., Asanuma, J., Hasegawa, H., Hiyama, T., Iijima, Y., Ishidoya, S., Itoh, M., Kato, T., Kondo, H., Kosugi, Y., Kume, T., Maeda, T., Matsuura, S., Maximov, T., Miyama, T., Moriwaki, R., Muraoka, H., Petrov, R., Suzuki, J., Taniguchi, S. & Ichii, K. 2024, The JapanFlux2024 dataset for eddy covariance observations covering Japan and East Asia from 1990 to 2023, Earth System Science Data, submitted. / Hirano, T., Suzuki, K., and Hirata, R.: Energy balance and evapotranspiration changes in a larch forest caused by severe disturbance during an early secondary succession, Agric. For. Meteorol., 232, 457-468, https://doi.org/10.1016/j.agrformet.2016.10.003, 2017.https://ads.nipr.ac.jp/dataset/A20241210-030GET DATAAccess to data fileshttps://db.cger.nies.go.jp/gem/ja/flux/tomakomai_n.htmlVIEW RELATED INFORMATIONhttps://asiaflux.net/index.php?page_id=113VIEW RELATED INFORMATIONdatasetQuality controlled