Search Results 1-20 of 831

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Technical Support for Air-borne Survey by Unmanned Aerial Vehicles (drones) [in Japanese]

加茂正人

… This report reviews examples of technical support for air-borne survey conducted by Disaster Prevention Research Institute, Kyoto University, by using unmanned aerial vehicles (drones). …

京都大学防災研究所年報. A = Disaster Prevention Research Institute Annuals. A 63(A), 111-113, 2020-12

IR
2

Characteristics of the Magnitude and Distribution of Landslides Induced by the Heavy Rain Event of July 2018 in the Southwestern Part of Ehime Prefecture, Japan [in Japanese]

木村誇 , 若月強 , 山田隆二 , 井口隆

… 面に集中していた．一方で，面積1,000～10,000 m2オーダーに及ぶ比較的規模の大きな崩壊も同時に発生していた．それらはこの地域の四万十帯砂岩に特徴的な節理の発達により，分離の進行した岩盤の深層崩壊であったThis report presents characteristics of the landslide magnitude and distribution in the southwestern part of Ehime Prefecture, according to field survey and geospatial analysis results on landslides and related sediment disasters caused by the heavy rain event of July …

主要災害調査 = National Disaster Research Report (53), 67-82, 2020-03-26

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3

Distribution and abundance of dalli-type Dall's porpoises Phocoenoides dalli migrating into waters off southeastern Hokkaido, Japan, during summer : results of 2014-2016 aerial surveys

Kanaji Yu , Yoshida Hideyoshi , Sasaki Hiroko , Okazaki Makoto , Kobayashi Mari

Fisheries science 86(2), 287-298, 2020-03
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Study on Simulation of Measurement and Exploration for Vertical Holes and Underground Caverns Using UAV-UGV System [in Japanese]

眞部広紀 , 稲川直裕 , 前田貴信 , 久間英樹 , 松見豊 , 岡本渉

… In this paper, we discuss methods of survey, measurement, and exploration for vertical holes and underground caverns using cooperated system of UAV (Unmanned Aerial Vehicle) and UGV (Unmanned Ground Vehicle). …

佐世保工業高等専門学校研究報告 = RESEARCH REPORTS OF NATIONAL INSTITUTE OF TECHNOLOGY, SASEBO COLLEGE (56), 95-104, 2020-01-31

IR
5

ウェーブレット解析を用いた落石発生源の調査に適した図化手法の高度化 [in Japanese]

﨑田晃基 , 菊地輝行 , 西山哲

土木情報学シンポジウム講演集 Proceedings of the symposium on civil engineering informatics 45, 69-72, 2020
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A New Approach to the Legendary Giant Tree Survey Using Airborne Laser Data on Yakushima [in Japanese]

MAEDA Yoshiko , HONDA Kenichi , HIKICHI Keita , HIROSE Yoko

… To search for this legendary giant tree, we used aerial LiDAR data to estimate the distribution area of the giant tree. …

Journal of The Remote Sensing Society of Japan 40(3), 135-140, 2020

J-STAGE
7

Detailed mapping of surface ruptures associated with the 2016 Kumamoto earthquake and faulting history of the conjugated fault in Dozon, Mashiki Town, Kumamoto Prefecture [in Japanese]

Iwasa Yoshiya , Kumahara Yasuhiro , Goto Hideaki , Nakata Takashi

… In order to reveal distribution and amount of small surface deformations, we created a digital surface model (DSM) based on photographs taken by unmanned aerial vehicle (UAV) and RTK-GPS survey and conducted a field survey. … We also conducted a trenching survey across the conjugated fault to reveal surface faulting history. …

Active Fault Research 2020(52), 1-8, 2020

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8

Survey of the natural invasion-promoting method using Aerial photography by UAV And Topography evaluation by Terrestrial Laser Profiler [in Japanese]

TANAKA Jun , YAMADA Chieri , KANDA Seiya , AKASHI Hiroyuki , MIYAMOTO Takuya

自然進入促進型植生マットを50度以上の林道切土法面に敷設し，3年間侵入個体数を調査した。2年目から3年目に侵入数は，559％増加し，11.2個/m2となった。同期間の植被率は，267％増加し，16.5％と侵入数よりも低い増加率となった。これは，シカの食害によって地上部が損傷した影響が大きかった。傾斜と侵入位置の関係では，有意な差は確認 …

Journal of the Japanese Society of Revegetation Technology 46(1), 166-169, 2020

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9

Field survey of slope failures occurred in Fukui prefecture due to heavy rainfall in July 2018 -Aerial photograph by using UAV and slope stability analysis- [in Japanese]

TSUJINO Kazuhiko , KOBAYASHI Taizo

… In this report, we describe the result of investigating the shape of slope failures caused by this heavy rainfall from aerial photographs taken by Unmanned Aerial Vehicle. …

Journal of Japan Society for Natural Disaster Science 39(1), 23-34, 2020

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10

INVESTIGATION OF RIVER STRUCTURES DAMAGED AT CHIKUMA RIVER DUE TO TYPHOON NO. 19, OCTOBER 2019 [in Japanese]

MATSUDA Tomoya , KAWAJIRI Shunzo , WATANABE Yasuharu , WATANABE Kenji

… The authors conducted a field survey on the 23rd and 24th October 2019 at the damaged area of the river structure in the Chikuma River. … The survey methods are visual observation by field reconnaissance and aerial photography by UAV (Unmanned Aerial Vehicle). … This paper reports the damage situation of river structures obtained from the field survey and the lessons learned. …

Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 76(1), 398-403, 2020

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11

Coseismic Uplift of Iwami-Tatamigaura during the 1872 Hamada Earthquake:—Survey of Emerged Sessile Assemblage and Topography— [in Japanese]

SHISHIKURA Masanobu , NAMEGAYA Yuichi , MAEMOKU Hideaki , ECHIGO Tomoo

… In two sea caves located in the northern part of the survey area, we observed the emerged sessile assemblage, which consists mainly of calcareous tubeworm, Pomatoleios kraussii, and collected samples for 14C dating and measured their altitude referring against the Tokyo Peil (T.P.). …

Zisin (Journal of the Seismological Society of Japan. 2nd ser.), 2020

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12

River bed elevation change between 2016 and 2019 at Tama-river midstream estimated by GNSS and aerial laser surveying data [in Japanese]

Yoshioka Miki , Sawagaki Takanobu

… To estimate river bed elevation change after the flood, GNSS and aerial laser survey data of GSI are used. …

Proceedings of the General Meeting of the Association of Japanese Geographers 2020a(0), 136, 2020

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13

Development of the Deep Learning Based Damage Detection Model for Buildings Utilizing Aerial Photographs of Plural Earthquakes [in Japanese]

NAITO Shohei , TOMOZAWA Hiromitsu , MORI Yuji , MONMA Naokazu , NAKAMURA Hiromitsu , FUJIWARA Hiroyuki

… We developed an automatic damage classification model for wooden houses using aerial photographs of plural earthquakes designed for supporting disaster responses. … First, we visually classified all buildings into four damage levels, by utilizing six kinds of aerial images taken immediately after the 1995 Southern Hyogo earthquake, the 2011 off the Pacific coast of Tohoku earthquake, the foreshock and the main shock of the 2016 Kumamoto earthquake, and the 2018 Hokkaido Iburi eastern earthquake. …

Journal of Japan Association for Earthquake Engineering 20(7), 7_177-7_216, 2020

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14

Patch dynamics of Euphorbia adenochlora and relationship between patch area of E. adenochlora and disturbance elements in the Honme River. [in Japanese]

NIWA Hideyuki , HORI Masaki

… Aerial images obtained us ing unmanned aerial vehicles from 2016 through 2019 were utilized. … Based on the results of our 4-year survey, it can be stated that the population of E. …

Ecology and Civil Engineering 23(1), 37-46, 2020

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15

Estimation method of yield, height and nutrition of pasture of grass types using visible light images [in Japanese]

TAKAHASHI Fubuki , TSUICHIHARA Satoki , TAKEMURA Hiroshi

… In this study, 205 points data collected by Aerial shooting and reaping survey was utilized. …

The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2020(0), 1P2-B10, 2020

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16

Spatial Distribution of Grazing Sites and Dung of Beef Cows in a Sloping Pasture

YOSHITOSHI Rena , WATANABE Nariyasu , LIM Jihyun

… We also describe a new pasture survey method of detecting cow dung and weed positions in a pasture by using unmanned aerial vehicle (UAV)-based imagery. …

Japan Agricultural Research Quarterly: JARQ 54(4), 299-306, 2020

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17

AUTOMATIC DETECTION OF SLOPE FAILURE REGIONS USING SEMANTIC SEGMENTATION [in Japanese]

KANAI Kazuki , YAMANE Tatsuro , ISHIGURO Satoshi , CHUN Pang-jo

… In order to assess the damage, several organizations, including the Geographical Survey Institute (GSI), have drawn maps showing the slope failure area from aerial photographs. …

Intelligence, Informatics and Infrastructure 1(J1), 421-428, 2020

J-STAGE
18

CHANGE IN SHORELINE CONFIGURATION AND LONGSHORE SAND TRANSPORT BETWEEN OARAI AND KASHIMA PORTS [in Japanese]

UDA Takaaki , KAWAMATA Masashi , KIKUCHI Shogo , OHTANI Yasuro , SAN-NAMI Toshiro

… Long-term shoreline changes were investigated on a coast between Oarai and Kashima Ports facing the Kashimanada Sea using aerial photographs together with the analysis of topographic changes using bathymetric survey data. … Because marked beach changes have occurred since 1964 in this area, the shoreline changes in selected areas were also investigated using aerial photographs. …

Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 76(2), I_457-I_462, 2020

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19

SURVEY AND SIMULATION ABOUT CURRENT INFORMATION AROUND OFFSHORE BREAKWATER AT ZENIBAKO BEACH [in Japanese]

INUKAI Naoyuki , MINAMIHARA Mitsuru , ABE Jun , KIMURA Takahiko , SUZUKI Naoko , SAITO Hiroki , SAITO Hidetoshi

… Secondary, we made the field survey in August, 2018. … At the field survey, we used ADCP, and we got the water depth information and the current information. … During field survey, we got the aerial photographs by the UAV. …

Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 76(2), I_1183-I_1188, 2020

J-STAGE
20

Use of high-resolution elevation data to assess the vulnerability of the Bangkok metropolitan area to sea level rise

Tebakari Taichi

… Using high-resolution elevation data (2 m × 2 m), obtained during a 2012 aerial Lidar survey as part of the Chao Phraya River basin flood management project in Thailand, we assessed the impact of sea level rise due to climate change on the Bangkok metropolitan area. …

Hydrological Research Letters 14(4), 136-142, 2020

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