Altitude dependency of future snow cover changes over Central Japan evaluated by a regional climate model

Kawase, Hiroaki; Hara, Masayuki; Yoshikane, Takao; Ishizaki, Noriko N.; Uno, Fumichika; Hatsushika, Hiroaki; Kimura, Fujio

doi:10.1002/2013jd020429

Cited by 31 publications

(27 citation statements)

References 45 publications

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“…This high precipitation is caused by high seawater temperature, which is maintained by the warm Tsushima current moving at 2.6 million m 3 s −1 from the southwest to the northeast along the Japan Sea coast (Zhang and Satake, 2003). The cold northwesterly wind gathers much water vapor from the Sea of Japan, bringing heavy snow to the Sea of Japan side (Kawase et al, 2013). Furthermore, the precipitation patterns are dominated by shifts as sea-surface temperatures change, e.g., El Niño and La Niña (Trenberth, 2011).…”

Section: Impact Of Climate Change On Rainfallmentioning

confidence: 99%

Temporal variations of groundwater tables and implications for submarine groundwater discharge: a 3-decade case study in central Japan

Zhang

et al. 2017

Hydrol. Earth Syst. Sci.

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Abstract. Fresh submarine groundwater discharge (SGD) is the key pathway of flux and nutrients for the groundwater from land to the ocean. SGD flux is a current issue of discussion and a means to clarify the coastal marine system under climate change. SGD flux accounts for about one-quarter of the river runoff in the Katakai alluvial fan in Uozu, Toyama, Japan, which is an ideal area to study SGD flux considering the need for a rapid response to climate change and the prior research on SGD there. In this paper, the monthly groundwater table's condition over 30 years is analyzed using monthly rainfall, snowfall, and the climate change index. Rainfall has been on an upward trend, but the snowfall has decreased over 40 years. Furthermore, the groundwater table at monitoring wells in the coastal area increased, as a result of the increased rainfall. However, the relationship between snowfall and groundwater is negative. As expected by Darcy's law, SGD flux was controlled by the hydraulic gradient of the coastal groundwater. The estimated historic SGD flux by groundwater table variation shows an upward trend of SGD. Considering the increase in precipitation and the groundwater table, SGD flux may increase under climate change.

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Section: Impact Of Climate Change On Rainfallmentioning

confidence: 99%

Temporal variations of groundwater tables and implications for submarine groundwater discharge: a 3-decade case study in central Japan

Zhang

et al. 2017

Hydrol. Earth Syst. Sci.

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“…Japan is one of the world's snowiest regions (Yano, 1993), particularly in the mountainous region along northwest coast. Because Japan's mountainous areas are located at relatively low latitudes (35-45°N) in a warm temperate zone, even slight climate changes are likely to affect snow conditions (Kawase et al, 2013;Yamaguchi, Abe, Nakai, & Sato, 2011). These changes may cause significant changes in snow-dominated ecosystem in Japan (Kudo, Amagai, Hoshino, & Kaneko, 2011;Tsuyama et al, 2011Tsuyama et al, , 2012.…”

Section: Department Of Economic and Social Affairs Population Divisimentioning

confidence: 99%

Land abandonment and changes in snow cover period accelerate range expansions of sika deer

Ohashi

Kominami

Higa

et al. 2016

Ecology and Evolution

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Ongoing climate change and land‐use change have the potential to substantially alter the distribution of large herbivores. This may result in drastic changes in ecosystems by changing plant–herbivore interactions. Here, we developed a model explaining sika deer persistence and colonization between 25 years in terms of neighborhood occupancy and habitat suitability. We used climatic, land‐use, and topographic variables to calculate the habitat suitability and evaluated the contributions of the variables to past range changes of sika deer. We used this model to predict the changes in the range of sika deer over the next 100 years under four scenario groups with the combination of land‐use change and climate change. Our results showed that both climate change and land‐use change had affected the range of sika deer in the past 25 years. Habitat suitability increased in northern or mountainous regions, which account for 71.6% of Japan, in line with a decrease in the snow cover period. Habitat suitability decreased in suburban areas, which account for 28.4% of Japan, corresponding to land‐use changes related to urbanization. In the next 100 years, the decrease in snow cover period and the increase in land abandonment were predicted to accelerate the range expansion of sika deer. Comparison of these two driving factors revealed that climate change will contribute more to range expansion, particularly from the 2070s onward. In scenarios that assumed the influence of both climate change and land‐use change, the total sika deer range increased by between +4.6% and +11.9% from the baseline scenario. Climate change and land‐use change will require additional efforts for future management of sika deer, particularly in the long term.

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“…Dynamical downscaling using a regional climate model is a useful method for evaluating future changes in winter precipitation, including snowfall and rainfall (Hara et al 2008;Kawase et al 2013). Kawase et al (2013) investigated the impacts of sea surface and atmospheric warming due to global warming on snowfall and snow depth along the Sea of Japan coast.…”

Section: Introductionmentioning

confidence: 99%

Future Changes in Winter Precipitation around Japan Projected by Ensemble Experiments Using NHRCM

Kawase

Sasaki

Murata

et al. 2015

Journal of the Meteorological Society of Japan

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We investigate future changes in winter precipitation around Japan and their uncertainties using the downscalings of a non-hydrostatic regional climate model (NHRCM) with 20-km grid spacing according to global climate projections. The global climate projections were conducted by the atmospheric general circulation model with three patterns of sea surface temperature changes in the Coupled Model Intercomparison Project Phase 5 under the Representative Concentration Pathway 8.5. Moreover, three cumulus convective parameterizations were applied in the present and future climate experiments. The ensemble mean of nine future NHRCM experiments shows decreases in the winter precipitation on the coast of the Sea of Japan and over the Pacific Ocean in the south of the Japanese archipelago. The former decrease in precipitation results from a weakened winter monsoon. The latter corresponds to changes in extratropical cyclone number around Japan, which have a large uncertainty. On the other hand, winter precipitation increases over the northernmost part of Japan (Hokkaido) and the northeastern Asian continent. The strengthened northwesterly around Hokkaido, which results from the reduction of sea ice in the Sea of Okhotsk, causes increased precipitation in the inland area of Hokkaido. In addition, moistening due to global warming relates to increased precipitation in extremely cold regions. These signals are common to most experiments.

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Altitude dependency of future snow cover changes over Central Japan evaluated by a regional climate model

Cited by 31 publications

References 45 publications

Temporal variations of groundwater tables and implications for submarine groundwater discharge: a 3-decade case study in central Japan

Temporal variations of groundwater tables and implications for submarine groundwater discharge: a 3-decade case study in central Japan

Land abandonment and changes in snow cover period accelerate range expansions of sika deer

Future Changes in Winter Precipitation around Japan Projected by Ensemble Experiments Using NHRCM

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