Zobrazeno 1 - 10 of 41 pro vyhledávání: '"Toshiro Kumakura"'
4
Radar Attenuation and Reflectivity Measurements of Snow With Dual Ka-Band Radar
Autor: Haruya Minda, Yasushi Fujiyoshi, Katsuhiro Nakagawa, Hiroshi Hanado, Masanori Nishikawa, Kenji Nakamura, Riko Oki, Toshiro Kumakura, Sento Nakai
Publikováno v: IEEE Transactions on Geoscience and Remote Sensing. 54:714-722
There is insufficient understanding of backscattering and attenuation for the radiowave remote sensing of snow because ground measurements of snow in the Ka-band are limited. This study estimates the equivalent radar reflectivity factor $(Z_e)$ and s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::08690e9c04df4a98ac6c1703ca4fd329
https://doi.org/10.1109/tgrs.2015.2464099
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5
Nondestructive three-dimensional observations of flow finger and lateral flow development in dry snow using magnetic resonance imaging
Autor: Takafumi Katsushima, Toshiro Kumakura, Satoru Yamaguchi, Toshihiro Ozeki, Satoru Adachi
Publikováno v: Cold Regions Science and Technology. 170:102956
Flow fingers develop due to the infiltration of snow meltwater or rain water into a dry snowpack. The width, spacing, and areal coverage of the flow finger path and occurrence of capillary barriers have been demonstrated using dye tracer experiments
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::72f116d6d8ca0bc6832eb8d3e3f62c41
https://doi.org/10.1016/j.coldregions.2019.102956
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8
Experimental analysis of preferential flow in dry snowpack
Autor: Satoru Yamaguchi, Toshiro Kumakura, Takafumi Katsushima, Atsushi Sato
Publikováno v: Cold Regions Science and Technology. 85:206-216
Preferential flow in snowpack is an important phenomenon and influences snowpack modeling, avalanche forecasting and runoff forecasting for snow-covered basins. However, the theoretical foundation is not sufficient to develop a snowpack model that in
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::89df5813dbd528f94dd01500f843ccd3
https://doi.org/10.1016/j.coldregions.2012.09.012
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9
Dependence of the water retention curve of snow on snow characteristics
Autor: Takafumi Katsushima, Toshiro Kumakura, Kunio Watanabe, Atsushi Sato, Satoru Yamaguchi
Publikováno v: Annals of Glaciology. 53:6-12
The water retention curve (WRC), which shows the relationship between the volumetric liquid water content, θv, and suction, h, is a fundamental part of the characterization of hydraulic properties. Therefore, the formulation of the WRC as a function
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5e6779c5665125743da7d575a207fd79
https://doi.org/10.3189/2012aog61a001
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10
Validation of a Crop Yield and CO2 Fixation Model over Southeast Asia by Carbon Partitioning in Grain Plants
Autor: Daijiro Kaneko, Toshiro Kumakura, Peng Yang
Publikováno v: Journal of the Indian Society of Remote Sensing. 39:297-306
A photosynthetic-sterility model for grain production monitoring has been developed and validated under the background of climate change and Asian economic growth in developing countries. This paper presents an application of the model to evaluate ca
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2bb51b7c5a16ef4c1beca75c89a19e49
https://doi.org/10.1007/s12524-011-0096-0
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