Search Results 1-20 of 382

  • Habitat Shifts of Larval and Juvenile Konoshiro Gizzard Shad, Konosirus punctatus, in Relation to the Functional Development in Tokyo Bay, Central Japan

    デイビッド E. アンマリサン , 今井 仁 , 河野 博 , David Erick Angmalisang , Hitoshi Imai , Hiroshi Kohno

    … Occurrence patterns of konoshiro gizzard shad Konosirus punctatus larvae and juveniles were examined in Tokyo Bay by monthly samplings using the following two types of gear: a small seine net towed at three tidal flats in the inner bay from June 2006 to August 2008 and at three surf zones in the outer bay from April 1998 to March 1999 except July 1998; …

    東京海洋大学研究報告 = Journal of the Tokyo University of Marine Science and Technology (16), 39-52, 2020-02-28

    IR 

  • Horizontal distribution and annual fluctuations in abundance of settled juveniles of the black sea bream Acanthopagrus schlegelii in Hiroshima Bay, Japan  [in Japanese]

    河合 賢太郎 , 藤田 大樹 , 海野 徹也

    … Juveniles (n=2,488) were collected from 18 sampling stations around Hiroshima Bay using surf zone nets during the early summer from 2006 to 2009. …

    広島大学総合博物館研究報告 (11), 1-5, 2019-12-25

    IR  DOI 

  • Voucher-based southernmost records of a dragonet species, Eleutherochir mirabilis (Actinopterygii, Callionymidae), from Nobeoka City, Miyazaki Prefecture, southern Japan  [in Japanese]

    緒方 悠輝也 , 村瀬 敦宣

    日本生物地理学会会報 = Bulletin of the Biogeographical Society of Japan 74, 65-69, 2019-12-20

  • OBSERVATION OF NEARSHORE TOPOGRAPHY AND CURRENT IN SURF ZONE USING WEB CAMERAS  [in Japanese]

    宇多 高明 , 大木 康弘 , 永沼 慎吾 , 菊池 正悟 , 大谷 靖郎 , 三波 俊郎 , 市村 康

    土木学会論文集. B2, 海岸工学 Journal of Japan Society of Civil Engineers. 土木学会海岸工学委員会 編 75(2), I_85-90, 2019

  • WAVE BREAKER TYPES AND SURF ZONE HYDRAULICS  [in Japanese]

    仲座 栄三 , 田中 聡 , 本屋敷 涼 , 宮里 信寿 , 福森 匡泰 , SCHAAB Carolyn

    土木学会論文集. B2, 海岸工学 Journal of Japan Society of Civil Engineers. 土木学会海岸工学委員会 編 75(2), I_79-84, 2019

  • Effect of Heat Loss on Hydrothermal wave Instability in Half-Zone Liquid Bridges of High Prandtl NumberFluid

    FUJIMOTO Sorachi , OGASAWARA Toru , OTA Asumi , MOTEGI Kosuke , UENO Ichiro

    … We investigate the effect of heat transfer through a free surface on the primary instability of thermocapillary-driven convection in a geometry of so-called half-zone liquid bridge of high Prandtl number fluid. … The effect of gravity level is also examined in order to discuss qualitatively the induced flow fields after the transition obtained in the ground-based experiments as well as in on-orbit experiments so-called 'Dynamic Surf' in the Japan Experiment Module 'Kibo' aboard the International Space Station. …

    International journal of microgravity science and application 36(2), 360204, 2019

    J-STAGE 

  • OBSERVATION OF NEARSHORE TOPOGRAPHY AND CURRENT IN SURF ZONE USING WEB CAMERAS  [in Japanese]

    UDA Takaaki , OOKI Yasuhiro , NAGANUMA Shingo , KIKUCHI Shingo , OHTANI Yasuro , SAN-NAMI Toshiro , ICHIMURA Yasu

    … <p> Locally-formed troughs in the surf zone, which cannot be recognized by ordinary people, and troughs which are related to the formation of longshore and rip currents, were measured using two web cameras. … From the imagery data, the characteristics of local topography in the surf zone were studied in terms of the prevention of accidents in the surf zone. …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 75(2), I_85-I_90, 2019

    J-STAGE 

  • WAVE BREAKER TYPES AND SURF ZONE HYDRAULICS  [in Japanese]

    NAKAZA Eizo , TANAKA Satoshi , MOTOYASHIKI Ryo , MIYAZATO Nobutoshi , FUKUMORI Masahiro , SCHAAB Carolyn

    … <p> Using CADMAS-SURF numerical simulation models the generation mechanisms of wave breaker types are explained clearly. … A resonant oscillation in the swash zone can cause the maximum amount of wave runup. …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 75(2), I_79-I_84, 2019

    J-STAGE 

  • FIELD OBSERVATION OF NEARSHORE CURRENT USING GPS FLOATS AND DYED TRACER ON KASHIMANADA COAST  [in Japanese]

    UDA Takaaki , OHTANI Yasuro , NAGANUMA Shingo , KIKUCHI Shogo , OOKI Yasuhiro , NAKAMURA Asuto

    … Floats attached with a small GPS were thrown into the surf zone, and subsequent movements were measured. … Then, this rip current passed the tip of the headlands, forming the separation zone of the current immediately north of the headland.</p> …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 75(2), I_181-I_186, 2019

    J-STAGE 

  • STEREO IMAGE ANALYSIS OF AERIAL IMAGES WITH UAV FOR WAVE MONITORING  [in Japanese]

    MITOBE Yuta , SHINDO Takehito , SUZUKI Akihiro , TANAKA Hitoshi

    … In this study, stereo image analysis was applied to video images from two UAVs for reconstructing 3D shapes of water surfaces in surf zone. … SURF were used for feature-based matching of two simultaneous video images. … Bubbles entrained by wave breaking formed clear textures on water surfaces to be extracted as SURF feature points. …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 75(2), I_1273-I_1278, 2019

    J-STAGE 

  • STATISTICAL ANALYSIS OF UNDERTOW ON A BARRED BEACH

    BORRIBUNNANGKUN Kullachart , SUZUKI Takayuki

    … A Horizontal Acoustic Doppler Current Profiler was used to measure cross-shore currents, i.e., undertow, and water levels in the surf zone. … curves can develop a statistical model of the undertow, and it can be considered that the Weibull parameters are affected by the combination of normalized values of the wave energy flux, relative surf zone location, and normalized water depth. …

    Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 75(2), I_707-I_712, 2019

    J-STAGE 

  • NUMERICAL ANALYSIS OF TYPHOON-INDUCED WAVE SETUP SURGES ALONG WEST COAST OF SAGAMI BAY  [in Japanese]

    WASHIDA Masaki , MUROI Naoto , TAKAHASHI Tomoyuki

    … In particular, because of its steep topography on the western coast, wave maintain its height even in the shallow coastal area and break in the narrow surf zone causing the beating Wave Setup. …

    Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 75(2), I_61-I_66, 2019

    J-STAGE 

  • AIRBORNE LIDAR BATHYMETRY ON RUMOI COAST IN HOKKAIDO  [in Japanese]

    IKI Shinji , FUJIYAMA Tatsuo , KADOWAKI Kiwamu , YOKOTA Tomoaki , WATANABE Tomoharu , KURONUMA Tokumitsu , TSUKAMOTO Yoshio

    … This area is very challenging for surveyor because there are shallow reef zoon around 300m offshore and extensively developed bar around surf zone. …

    Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 75(2), I_115-I_120, 2019

    J-STAGE 

  • Accuracy verification of Airborne Laser Bathymetry in the surf zone  [in Japanese]

    中村 聡志 , 伴野 雅之 , 小硲 大地 , 柳嶋 慎一 , 安田 秀人

    港湾空港技術研究所資料 = Technical note of the Port and Airport Research Institute (1346), 1-14, 2018-06

  • ACCURACY VERIFICATION OF AIRBORNE GREEN LASER BATHYMETRY IN THE SURF ZONE  [in Japanese]

    中村 聡志

    土木学会論文集. B2, 海岸工学 Journal of Japan Society of Civil Engineers. 土木学会海岸工学委員会 編 74(2), I_1447-1452, 2018

  • FIELD OBSERVATIONS OF CROSS-SHORE SEDIMENT TRANSPORT AND SEABED MIXING DEPTHS USING FLUORESCENT SAND TRACERS  [in Japanese]

    鈴木 崇之 , 田島 貴一 , 比嘉 紘士 , 中村 由行 , 柳嶋 慎一

    土木学会論文集. B2, 海岸工学 Journal of Japan Society of Civil Engineers. 土木学会海岸工学委員会 編 74(2), I_763-768, 2018

  • NUMERICAL SIMULATION FOR SEDIMENT TRANSPORT IN SURF ZONE BY 3D DEM-MPS COUPLING  [in Japanese]

    原田 英治 , 五十里 洋行 , 後藤 仁志 , 居村 光孝 , 清水 裕真

    土木学会論文集. B2, 海岸工学 Journal of Japan Society of Civil Engineers. 土木学会海岸工学委員会 編 74(2), I_751-756, 2018

  • STUDY ON BEHAVIOR OF CORAL GRAVELS UNDER WAVES PENETRATING THROUGH CORAL GRAVEL BED  [in Japanese]

    瀬戸 祥太 , 田島 芳満

    土木学会論文集. B2, 海岸工学 Journal of Japan Society of Civil Engineers. 土木学会海岸工学委員会 編 74(2), I_709-714, 2018

  • FIELD OBSERVATIONS OF CROSS-SHORE SEDIMENT TRANSPORT AND SEABED MIXING DEPTHS USING FLUORESCENT SAND TRACERS  [in Japanese]

    SUZUKI Takayuki , TAJIMA Kiichi , HIGA Hiroto , NAKAMURA Yoshiyuki , YANAGISHIMA Shinichi

    …  Cross-shore sediment transport and the sediment mixing of inner-surf and outer-surf zones were investigated using field data observed at a dissipative sandy beach. … During the observations, since an outer bar did not exist, the sediment on the offshore side of the surf zone moved toward the shoreline. …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 74(2), I_763-I_768, 2018

    J-STAGE 

  • FIELD OBSERVATION OF LONGSHORE AND RIP CURRENT USING IMAGERIES OF WEB CAMERA INSTALLED ON HOKOTA COAST  [in Japanese]

    OHTANI Yasuro , UDA Takaaki , OSAKI Yasuhiro , NAGANUMA Shingo , SAN-NAMI Toshiro , OOKI Yasuhiro , ICHIMURA Yasushi

    …  The method developed by Lippmann and Halman, in which the imageries taken by a video or web camera are employed to observe water depth in the surf zone and the formation of a bar and trough, was applied to the observation around No. 29 artificial headland on the Hokota coast facing the Pacific Ocean. …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 74(2), I_91-I_96, 2018

    J-STAGE 

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