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Assessment of the sources and inflow processes of microplastics in the river environments of Japan.
The numerical and mass concentrations of microplastics collected at 36 sites on the surfaces of 29 Japanese rivers were mapped and compared with four basin characteristics (basin area, populationExpand
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A new technique for detecting colored macro plastic debris on beaches using webcam images and CIELUV.
We have developed a technique for detecting the pixels of colored macro plastic debris (plastic pixels) using photographs taken by a webcam installed on Sodenohama beach, Tobishima Island, Japan. TheExpand
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Wind‐induced Kuroshio warm water intrusion into Sagami Bay
[1] The mechanisms of the periodic Kuroshio warm water intrusion (KWWI) into Sagami Bay through the Oshima West Channel (OWC) and the fluctuation of the current field in the bay were investigatedExpand
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Ecological Network Linked by the Planktonic Larvae of the Clam Ruditapes Philippinarum in Tokyo Bay
This study demonstrates the existence of an ecological network of short-necked clam larvae in Tokyo Bay. It also shows that the whole Tokyo Bay ecosystem may be improved if suitable spawning grounds,Expand
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A decadal prediction of the quantity of plastic marine debris littered on beaches of the East Asian marginal seas.
Large quantities of plastic litter are expected to wash ashore along the beaches of the East Asian marginal seas in the coming decade. Litter quantities were predicted using three techniques: aExpand
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CURRENTS AND MATERIAL TRANSPORT IN TOKYO BAY DUE TO COASTAL WARM WATER INTRUSION INDUCED BY THE KUROSHIO FLUCTUATION IN STRATIFIED CONDITIONS
1998年8月から1998年10月にかけて東京湾のほぼ全域で現地観測を行い, 黒潮変動に伴う沖合暖水波及時における東京湾内の流動および海洋構造を明らかにすることを試みた. その結果, 黒潮の変動に伴って沖合から湾口部へ波及した高温・高塩分・低濁度の沿岸水は, 密度流として湾内中層に貫入するとともに, 湾内地形と地球自転の効果によって複雑な経路を辿りながら湾内へ侵入し, 反対に,Expand
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COMPARATIVE ANALYSIS OF LONG-TERM SUBSURFACE WATER TEMPERATURE VARIATION IN TOKYO BAY, KASHIMA COAST AND KASUMIGAURA
典型的な閉鎖性水域である東京湾と開放性沿岸域である鹿島灘の年間表層水温変動過程の大局的な特徴を定量的に把握するために, 閉鎖性がより強くかつほぼ同様な気象条件下にある霞ヶ浦も含めた形での長期連続観測データに基づく比較解析を行った. その結果, 1) 鹿島灘海岸域では移流による熱輸送が年間を通して水温変動に寄与するのに対し, 霞ヶ浦では大気側との熱交換によって水温変動がほぼ規定されていること,Expand
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