Characteristics of suspended sediment material transport in the Ishikari Bay in snowmelt season

Le, Viet Son; Yamashita, Toshihiko; Okunishi, Takeshi; Shinohara, Ryuichiro; Miyatake, Makoto

doi:10.1016/j.apor.2006.11.001

Cited by 12 publications

(6 citation statements)

References 28 publications

(25 reference statements)

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“…Ahrens et al 12 Distribution of suspended particulate matter and sediment Tokyo Bay Le et al 13 Characterization of suspended sediment transport in the snowmelt season Ishikari Bay of Hokkaido Ide et al 14 Estimation of annual suspended sediment from a Japanese Cypress catchment Chikita 15 Observation of suspended sediment discharge from snowmelt Ikushunbetsu River, Hokkaido Nakamura et al 16 Inuences of channelization on discharge of suspended sediment and wetland vegetation Kushiro Marsh Yoshikawa and Nemoto 17 Seasonal variation of sediment transport to a canyon and coastal erosion Shimizu coast of Suruga Bay 22 Details of sampling methods and analysis procedure can be found in JSA JIS K0102 (Japanese Standard Association 23 ). Water quality measurement stations were selected for minimum distance to the outlet of the related river basin.…”

Section: Study Site and Data Collectionmentioning

confidence: 99%

Statistical analysis and estimation of annual suspended sediments of major rivers in Japan

Luo

Chaffe

et al. 2013

Environ. Sci.: Processes Impacts

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We evaluate the spatiotemporal trends of recent suspended sediment conditions in Japanese rivers. Statistical and spatiotemporal trend analysis is conducted on the 92 major rivers in Japan based on water quality monitoring data from 1992 to 2005. The Mann-Kendall non-parametric method was used to investigate the spatial and temporal trends for the suspended sediment indicator. Results show that the mean concentration of suspended sediments in Japanese rivers has generally declined in recent years, although there are still water quality problems at some monitoring sites (Kanto, Chubu, Kinki and Kyushu regions). A positive relationship between observed yearly discharge and suspended sediment load was found. Land use maps with 100 meter spatial resolution were used to apply an empirical model and develop a regression model for estimating annual suspended sediment loads directly from land use and hydrologic data. Rivers were assigned to three groups according to statistical cluster analysis of suspended sediment (SS) concentration. The correlation between the simulation result from the empirical model and the observed data had R(2) values of 0.62 and 0.71 for groups 2 and 3, and the correlation between the simulation result from the regression model and the observed data had R(2) values of 0.48 and 0.34 for groups 2 and 3. Results show that the proposed simulation technique can be used to predict the pollutant loads to river basins in Japan. Results also suggest prioritization methods and strategies that policy-makers can use to address suspended sediment pollution in rivers and water quality management in general.

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Section: Study Site and Data Collectionmentioning

confidence: 99%

Statistical analysis and estimation of annual suspended sediments of major rivers in Japan

Luo

Chaffe

et al. 2013

Environ. Sci.: Processes Impacts

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“…In addition, snowmelt has been shown to be a dominant driver for SS transport in many parts of the world (e.g. Lana-Renault et al, 2011;Le et al, 2006;López-Tarazón and Batalla, 2014;Praskievicz, 2014). For example, in a small catchment in the subalpine belt of the Central Spanish Pyrenees, discharge and SS transport during a snowmelt period accounted for up to 50% and 60% of the respective annual values, while precipitation during this period only represented 10-13% of the annual precipitation (Lana-Renault et al, 2011).…”

Section: Temporal Variability In Suspended Sediment Transportmentioning

confidence: 99%

Suspended sediment transport dynamics in rivers: Multi-scale drivers of temporal variation

Vercruysse

Grabowski

Rickson

2017

Earth-Science Reviews

329

181

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Suspended sediment is a natural part of river systems and plays an essential role in structuring the landscape, creating ecological habitats and transporting nutrients. It is also a common management problem, where alterations to sediment quantity and quality negatively impact ecological communities, increase flood hazard and shorten the lifespan of infrastructure. To address these challenges and develop appropriate sustainable management strategies, we need a thorough understanding of sediment sources, pathways and transport dynamics and the drivers that underlie spatial and temporal variability in suspended sediment transport in rivers. However, research to date has not sufficiently addressed the temporal complexity of sediment transport processes, which is limiting our ability to disentangle the hydro-meteorological, catchment, channel and anthropogenic drivers of suspended sediment transport in rivers. This review critically evaluates previously published work on suspended sediment dynamics to demonstrate how the interpretation of sediment sources and pathways is influenced by the temporal scale and methodology of the study. To do this, the review (i) summarizes the main drivers of temporal variation in suspended sediment transport in rivers; (ii) critically reviews the common empirical approaches used to analyze and quantify sediment sources and loads, and their capacity to account for temporal variations; (iii) applies these findings to recent case studies to illustrate how method and timescale affect the interpretation of suspended sediment transport dynamics; and finally (iv) synthesizes the findings of the review into a set of guidelines for a multi-timescale approach to sediment regime characterization. By recognizing a priori that study design and temporal scale have an impact on the interpretation of SS dynamics and employing methods that address these issues, future research will be better able to identify the drivers of suspended sediment transport in rivers, improve sediment transport modelling, and propose effective, sustainable solutions to sediment management problems.

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“…Changes in snowmelt regimes could affect sediment transport and water quality in Japanese rivers. Ishikari River, located in Hokkaido has one of the largest basin areas in Japan and the sediment transport occurs mainly due to snowmelt (Le et al 2006).…”

Section: Main Japanese Regions and River Basinsmentioning

confidence: 99%

Mapping of Japanese areas susceptible to snow cover change

Chaffe

Takara

Yamashiki

et al. 2013

Hydrological Sciences Journal

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Many of the Japanese regions subject to seasonal snow cover are characterized by low elevations and relatively high winter temperatures. A small change in winter temperatures could render many of these areas susceptible to snow cover change and consequently affect water resources management. This paper describes a climatological approach combined with an AGCM output to identify the regions and main river basins most sensitive to snow cover change in the case of climate change in Japan. It was found that a 1• C rise in temperature during the winter season could increase the snow-free area of Japan by 6%. The snow cover of Tohoku region and Mogami and Agano river basins was found to be the most sensitive to climate change. The AGCM output for a future scenario presents a reduction in total snowfall and an earlier peak in snowmelt for all regions.Key words snow cover; climate change; AGCM; AMeDAS; APHRO_JP; Japan Cartographie des régions du Japon sensibles aux changements de la couverture nivale Résumé La plupart des régions japonaises soumises à une couverture nivale saisonnière sont caractérisées par de faibles altitudes et des températures hivernales relativement élevées. Dans ces régions, un petit changement des températures hivernales peut modifier le régime de la couverture nivale et par conséquent avoir une incidence sur la gestion des ressources en eau. Cet article décrit une approche climatologique combinée avec une sortie de MCGA (Modèle de circulation générale atmosphérique) pour identifier les régions et les bassins les plus sensibles aux changements de la couverture nivale provoqués par le changement climatique au Japon. On a constaté qu'1• C de température en plus au cours de l'hiver pourrait augmenter la surface dépourvue de neige du Japon de 6%. Les couvertures nivales de la région de Tohoku et des bassins du Mogami et de l'Agano se sont révélées être les plus sensibles au changement climatique. La sortie MCGA d'un scénario futur présente une réduction du total des chutes de neige et un maximum plus précoce de la fonte des neiges pour toutes les régions.

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Characteristics of suspended sediment material transport in the Ishikari Bay in snowmelt season

Cited by 12 publications

References 28 publications

Statistical analysis and estimation of annual suspended sediments of major rivers in Japan

Statistical analysis and estimation of annual suspended sediments of major rivers in Japan

Suspended sediment transport dynamics in rivers: Multi-scale drivers of temporal variation

Mapping of Japanese areas susceptible to snow cover change

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