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TitlePrecipitation in Iitoi Fukushima forest site
Author 1Juri Iwamoto
Author 2Yuichi Onda
Author 3Junko Takahashi
Author 4Shaoyan Fan
Authors 5-Yuisei Uehara, Hiroyasu Nakamura, Asahi Hashimoto, Shiori Takamura, Shuta Shimada
SubjectLand Surface
Subject_sub1 
Subject_sub2 
AbstractThroughfall was monitored using tipping-bucket rain gauges to evaluate the spatial variability of rainfall reaching the forest floor. A total of 13 rain gauges were installed within the study plots. Each gauge had a resolution of 0.2 mm per tip and a 16.5 cm collector diameter. In the thinned plot, 10 rain gauges (B1–B10) were installed at 1 m intervals across the thinning rows, corresponding to the spatial arrangement of the soil moisture sensors. This configuration enabled throughfall to be measured from locations near residual tree stems and canopy-covered areas to more open positions near the center of the thinning rows. In the control plot, three rain gauges were installed beneath the closed canopy to characterize throughfall under unthinned stand conditions. Pulses from all gauges were recorded simultaneously at 10-min intervals. Gross precipitation outside the forest canopy was obtained from the AMeDAS Iitate Station and used as a reference for evaluating canopy interception and throughfall fractions. The observation period for throughfall analysis extended from May 1 to October 28, 2025.
Temporal coverage2025/4/30 23:50:00-2025/12/10 14:20
Spatial coverage37.65361 N, 140.691485 E
File format 
LanguageEnglish
Discovery metadata record 
PublisherCenter for Research in Radiation, Isotopes, and Earth System Sciences, University of Tsukuba
Publication year2026
Publication date14th of May
Digital Object Identifier (DOI)10.34355/CRiES.U.Tsukuba.00353 Data Download ( )
Short DOI 
Citation textIwamoto, J., Onda, Y., Takahashi, J., Fan, S., Uehara, Y., Nakamura, H., Hashimoto, A., Takamura, S., & Shimada, S. (2026). Precipitation in Iitoi Fukushima forest site [Dataset]. Center for Research in Radiation, Isotopes, and Earth System Sciences, University of Tsukuba. https://doi.org/10.34355/CRiES.U.Tsukuba.00353
Serial at center00353
Serial at each Univ./InstituteTSUK0072
Key word 1rainfall
Key word 2Forest practice
Key word 3Evapotranspiration
Key word 4 
Key word 5 
Remarks 

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