Impact of land-use changes on snow in a forested region with heavy snowfall in Hokkaido,Japan |
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| Authors: | Kazuyoshi Suzuki Yuji Kodama Taro Nakai Glen E Liston Kazukiyo Yamamoto Tetsuo Ohata |
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| Institution: | 1. Research Institute for Global Change, JAMSTEC , 3173-25 Showa-machi, Yokohama, Kanagawa, 236-0001, Japan skazu@jamstec.go.jp;3. Institute of Low-Temperature Sciences, Hokkaido University , Japan;4. Research Institute for Global Change, JAMSTEC , 3173-25 Showa-machi, Yokohama, Kanagawa, 236-0001, Japan;5. International Arctic Research Center, University of Alaska at Fairbanks , USA;6. Cooperative Institute for Research in the Atmosphere, Colorado State University , USA;7. Graduate School of Bioagricultural Sciences, Nagoya University , Japan;8. Research Institute for Global Change, JAMSTEC , 3173-25 Showa-machi, Yokohama, Kanagawa, 236-0001, Japan |
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| Abstract: | Abstract We simulated snow processes in a forested region with heavy snowfall in Japan, and evaluated both the regional-scale snow distribution and the potential impact of land-use changes on the snow cover and water balances over the entire domain. SnowModel reproduced the snow processes at open and forested sites, which were confirmed by snow water equivalent (SWE) measurements at two intensive observation sites and snow depth measurements at the Automated Meteorological Data Acquisition System sites. SnowModel also reproduced the observed snow distribution (from the MODIS snow cover data) over the simulation domain during thaw. The observed SWE was less at the forested site than at the open site. The SnowModel simulations showed that this difference was caused mainly by differences in sublimation. The type of land use changed the maximum SWE, onset and duration of snowmelt, and the daily snowmelt rate due to canopy snow interception. Citation Suzuki, K., Kodama, Y., Nakai, T., Liston, G. E., Yamamoto, K., Ohata, T., Ishii, Y., Sumida, A., Hara, T. & Ohta, T. (2011) Impact of land-use changes in a forested region with heavy snowfall in Hokkaido, Japan. Hydrol. Sci. J. 56(3), 443–467. |
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| Keywords: | deforestation canopy snow interception sublimation snowmelt rate turbulent flux |
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