Ph.D. in Science
Associate Professor of Spatial Information Analysis in CSIS, Univ. Tokyo
Journal / Book chapters
Refereed articles
in press
2018
Obanawa, H., Hayakawa, Y.S. (2018.06) Variations in volumetric erosion rates of bedrock cliffs on a small inaccessible coastal island determined using measurements by an unmanned aerial vehicle with structure-from-motion and terrestrial laser scanning. Progress in Earth and Planetary Science, 5, 33. doi:10.1186/s40645-018-0191-8
早川裕弌・安芸早穂子・辻 誠一郎 (2018.05) 古景観の復原における3次元景観情報を用いた地理的想像の喚起. E-journal GEO, 13 (1), 236-250. doi:10.4157/ejgeo.13.236
[ Hayakawa, Y.S., Aki, S., Tsuji, S. (2018.05) Inspiring Geographical Imagination for Palaeolandscape Reconstruction Using 3D Landscape Information. E-journal GEO, 13 (1), 236-250. doi:10.4157/ejgeo.13.236 (in Japanese with English abstract) ]
Giordan, D., Hayakawa, Y., Nex, F., Remondino, F., Tarollil, P. (2018.04) Review article: The use of Remotely Piloted Aircraft Systems (RPAS) for natural hazards monitoring and management. Natural Hazards and Earth System Sciences, 18, 1079-1096. doi:10.5194/nhess-18-1079-2018
Saito, H., Uchiyama, S., Hayakawa, Y.S., Obanawa, H. (2018.03) Landslides triggered by an earthquake and heavy rainfalls at Aso Volcano, Japan, detected by UAS and SfM-MVS photogrammetry. Progress in Earth and Planetary Science, 5, 15. doi:10.1186/s40645-018-0169-6
Hayakawa, Y.S., Yoshida, H., Obanawa, H., Naruhashi, R., Okumura, K., Zaiki, M., Kontani, R. (2018.02) Characteristics of debris avalanche deposits inferred from source volume estimate and hummock morphology around Mt Erciyes, central Turkey. Natural Hazards and Earth System Sciences, 18, 429-444. doi:10.5194/nhess-18-429-2018
Chen, C-W., Oguchi, T., Hayakawa, Y.S., Saito, H., Chen, H., Lin, G-W., Wei, L-W.., Chao, Y-C., Cheng, C-T. (2018.02) Sediment yield during typhoon events in relation to landslides, rainfall, and catchment areas in Taiwan. Geomorphology, 303, 540-548. doi:10.1016/j.geomorph.2017.11.007
2017
藤田秀之・早川裕弌・李 召熙・相良 毅 (2017.12) 空間データ基盤を活用する共同研究支援システムの構築-東京大学空間情報科学研究センターにおける長期運用から-. GIS理論と応用, 25 (2), 7-14.
[ Fujita, H., Hayakawa, Y.S., Lee, S., Sagara, T. (2017.12) Development of Joint Research Assist System Utilizing Spatial Data Infrastructure: Insights from Long-term Operation at Center for Spatial Information Science, The University of Tokyo. Theory and Applications of GIS, 25 (2), 7-14. (in Japanese with English abstract) ]
Yoshida, H., Hayakawa, Y.S., Takanami, S., Hikitsu, A., Ohsaka, S., Ishii, R. (2017.11) Geomorphic reconstruction of formation and recession processes of waterfalls of the Kaminokawa River basin on Osumi Peninsula, southern Kyushu, Japan. Geographical Research, 55 (4), 424-437. doi:10.1111/1745-5871.12229
Hayakawa, Y.S., Yoshida, H., Dragut, L., Oguchi, T. (2017.11) Automated extraction of hummocks in debris avalanche deposits using DEMs: A case study at Mt. Gassan, northwest Japan. Zeitschrift für Geomorphologie, Supplementary Issues, 61 (2), 199-212. doi:10.1127/zfg_suppl/2017/0361
Imaizumi, F., Hayakawa, Y.S., Hotta, N., Tsunetaka, H., Ohsaka, O., Tsuchiya, S. (2017.11) Relationship between the accumulation of sediment storage and debris-flow characteristics in a debris-flow initiation zone, Ohya landslide body, Japan. Natural Hazards and Earth System Sciences, 17, 1923-1938. doi:10.5194/nhess-17-1923-2017
Zahra, T., Paudel, U., Hayakawa, Y.S., Oguchi, T. (2017.04) Knickzone Extraction Tool (KET) - A new ArcGIS toolset for automatic extraction of knickzones from a DEM based on multi-scale stream gradients. Open Geosciences, 9 (1), 73-88. doi:10.1515/geo-2017-0006
早川裕弌 (2017.02) 「河川縦断形異常」「遷急点」「滝」「オンライン地形表示ツール」他. In: 鈴木隆介・松倉公憲・砂村継夫(編)「地形の辞典」朝倉書店.
[ Hayakawa, Y.S. (2017.02) “Anomalies in River Longitudinal Profiles” “Knickpoint” “Waterfall” “Online Viewers of Landforms” etc. In: Suzuki, T., Nogami, M., Sunamura, T. (eds.) “Dictionary of Landforms”, Asakura Publishing. (in Japanese) ]
Hayakawa, Y.S., Kusumoto, S., Matta, N. (2017.02) Seismic and inter-seismic ground surface deformations of Murono mud volcano (central Japan): A laser scanning approach. Progress in Earth and Planetary Science, 4 (1), 3. doi:10.1186/s40645-016-0116-3
早川裕弌 (2017.01)「河川プロセス・河床縦断面形の発達―遷急点・岩屑の運搬・堆積」「山間部の河成地形―峡谷・早瀬・滝・谷底平野」In: 小池一之・山下脩二・岩田修二・漆原和子・小泉武栄・田瀬則雄・松倉公憲・松本 淳・山川修治(編)「自然地理学事典」朝倉書店.
[ Hayakawa, Y.S. (2017.01) “Fluvial Processes and Development of River Longitudinal Profiles - Knickpoint, Sediment Transportation and Deposition” “Fluvial Landforms in Mountainous Regions - Gorges, Rapids, Waterfalls, Valley-bottom Plain” In: Koike, K., Yamashita, S., Iwata, S., Urusibara-Yoshino, K., Koizumi, T., Tase, N., Matsukura, Y., Matsumoto, J., Yamakawa, S. (eds.) Encyclopedia of Physical Geography, Asakura Publishing. (in Japanese) ]
Chen, C-W., Oguchi, T., Hayakawa, Y., Saito, H., Chen, H. (2017.01) Relationship between landslide size and rainfall conditions in Taiwan. Landslides, 14 (3),1235–1240. doi:10.1007/s10346-016-0790-7
2016
齋藤 仁・内山庄一郎・小花和宏之・早川裕弌 (2016.11) 平成 24年(2012年) 7月九州北部豪雨に伴う阿蘇火山地域での土砂生産量の推定−UAVとSfM多視点ステレオ写真測量を用いた高精細地形データの活用−. 地理学評論, 89 (6), 1-13.
[ Saito, H., Uchiyama, S., Obanawa, H., Hayakawa, Y.S. (2016.11) Sediment yields triggered by heavy rainfall in July 2012 at Aso volcano – Application of high definition topography using UAVs and SfM-MVS photogrammetry–. Geographical Review of Japan, 89 (6), 1-13. (in Japanese with English abstract) ]
早川裕弌・小花和宏之 (2016.10) 小型無人航空機を用いたSfM多視点ステレオ写真測量による地形情報の空中計測. 物理探査, 69 (4), 297-309. doi:10.3124/segj.69.297
[ Hayakawa, Y.S., Obnawa, H. (2016.10) Aerial measurements of topography using small UAS and SfM-MVS photogrammetry. Butsuri-Tansa (Geophysical Exploration), 69 (4), 297-309. doi:10.3124/segj.69.297 (in Japanese with English abstract) ]
Kondo, Y., Miki, T., Kuronuma, T., Hayakawa, Y.S., Kataoka, K., Oguchi, T. (2016.08) Concurrent and sustainable development of a local-scale digital heritage inventory through action research at Bat, Oman. Journal of Cultural Heritage Management and Sustainable Development, 6 (2), 195-212. doi:10.1108/JCHMSD-01-2016-0005
Hayakawa, Y.S., Kusumoto, S., Matta, N. (2016.07) Application of terrestrial laser scanning for detection of ground surface deformation in small mud volcano (Murono, Japan). Earth, Planets and Space, 68, 114. doi:10.1186/s40623-016-0495-0
Yunus, A.P., Oguchi, T., Hayakawa, Y.S. (2016.07) Remote identification of fluvial knickzones and their imprints on landscape morphology in the passive margins of Western Arabia. Journal of Arid Environments, 130, 14-29. doi:10.1016/j.jaridenv.2016.02.016
早川裕弌・小花和宏之・齋藤 仁・内山庄一郎 (2016.07) SfM多視点ステレオ写真測量の地形学的応用. 地形, 37 (3), 321-343.
[ Hayakawa, Y.S., Obanawa, H., Saito, H., Uchiyama, S. (2016.07) Geomorphological applications of Structure-from-Motion Multi-View Stereo photogrammetry: A review. Transactions, Japanese Geomorphological Union, 37 (3), 321-343. (in Japanese with English abstract) ]
早川裕弌・小口 高 (2016.06) 地形学における地上レーザ測量の活用. 地学雑誌, 125 (3), 299-324. doi:10.5026/jgeography.125.299
[ Hayakawa, Y.S., Oguchi, T. (2016.06) Applications of Terrestrial Laser Scanning in Geomorphology. Journal of Geography (Chigaku Zasshi), 125 (3), 299-324. doi:10.5026/jgeography.125.299. (in Japanese with English abstract) ]
Paudel, U., Oguchi, T., Hayakawa, Y. (2016.05) Multi-resolution landslide susceptibility analysis using a DEM and Random Forest. International Journal of Geosciences, 7 (5), 726-743. doi:10.4236/ijg.2016.75056
2015
Hayakawa, Y.S., Oguchi, C.T., Ariga, N., Aoki, H. (2015.09) Spatial distribution of changes in rockwall surface at Yoshimi-Hyakuana cave, central Japan, revealed by repeated terrestrial laser scanning. Procedia Earth and Planetary Science, 15, 619-626.
doi:10.1016/j.proeps.2015.08.114
Hayakawa, Y.S., Oguchi, T., Saito, H., Kobayashi, A., Baker, V.R., Pelletier, J.D., McGuire, L.A., Komatsu, G., Goto, K. (2015.08) Geomorphic imprints of repeated tsunami waves in a coastal valley in northeastern Japan. Geomorphology, 242, 3-10.
doi:10.1016/j.geomorph.2015.02.034
Gomez, C., Hayakawa, Y.S., Obanawa, H. (2015.08) A study of Japanese landscapes using Structure from Motion derived DSMs and DEMs based on historical aerial photographs: New opportunities for vegetation monitoring and diachronic geomorphology. Geomorphology, 242, 11-20.
doi:10.1016/j.geomorph.2015.02.021
Hayakawa, Y.S., Yoshida, H., Dragut, L., Oguchi, T. (2015.06) Comparative analysis of manual and automatic extractions of hummock landforms in Mt. Gassan, northwestern Japan. In: Jaroslaw, J., Zwoliński, Z., Mitasova, H., Hengl, T. (eds.) Geomorphometry for Geosciences. Adam
Mickiewicz University in Poznań - Institute of Geoecology and Geoinformation, International Society for Geomorphometry (Poznań, Poland), 51-52.
Yener, K.A., Kulakoglu, F., Yazgan, E., Kontani, R., Hayakawa, Y.S., Lehner, J.W., Dardeniz, G., Öztürk, G., Johnson, M., Hacar, A. (2015.06) New tin mines and production sites near Kültepe in Turkey: a third-millennium BC highland production model. Antiquity, 89 (345), 596-612.
doi:10.15184/aqy.2015.30
Dou, J., Paudel, U., Oguchi, T., Uchiyama, S., Hayakawa, Y.S. (2015.04) Shallow and deep-seated landslide differentiation using Support Vector Machines: A case study of the Chuetsu area, Japan. Terrestrial, Atmospheric and Oceanic Sciences, 26 (2-II), 227-239.
doi:10.3319/TAO.2014.12.02.07(EOSI)
早川裕弌・小口 高・齋藤 仁・小林明才・小松吾郎・後藤和久 (2015.04) 三陸海岸における津波による侵食地形の特徴:地上レーザ測量による解析. 地学雑誌, 124 (2), 241-258. doi:10.5026/jgeography.124.241
[ Hayakawa, Y.S., Oguchi, T., Saito, H., Kobayashi, A., Komatsu, G., Goto, K. (2015.04) Characteristics of erosional morphology by tsunami waves along the Sanriku Coast, northeastern Japan: Analysis using terrestrial laser scanning. Journal of Geography (Chigaku Zasshi), 124 (2), 241-258. (in Japanese with English abstract) doi:10.5026/jgeography.1234.241 ]
小花和宏之・早川裕弌・加藤 顕・ゴメス クリストファー (2015.04) 小型無人航空機および単独測位GNSS搭載カメラを用いた簡易的な地形測量手法. 地形, 36 (2), 87-106. [ CiNii ]
[ Obanawa, H., Hayakawa, Y.S., Kato, A., Gomez, C. (2015.04) Simplified survey method using small UAV and single-point positioning GNSS equipped digital camera. Transactions, Japanese Geomorphological Union, 36 (2), 87-106. (in Japanese with English abstract) ]
Hayakawa, Y.S., Obanawa, H. (2015.03) Mapping cliff face changes around a waterfall using terrestrial laser scanning and UAS-based SfM-MVS photogrammetry. Proceedings of The International Symposium on Cartography in Internet and Ubiquitous Environments 2015, C5. [PDF]
Obanawa, H., Hayakawa, Y.S. (2015.03) High-resolutional topographic survey using small UAV and SfM-MVS technologies in hardly accessible area. Proceedings of The International Symposium on Cartography in Internet and Ubiquitous Environments 2015, C4. [PDF]
2014
Korup, O., Hayakawa, Y., Codilean, A.T., Matsushi, Y., Saito, H., Oguchi, T., Matsuzaki, H. (2014.08) Japan’s Sediment Flux to the Pacific Ocean Revisited. Earth-Science Reviews, 135, 1-16.
doi:10.1016/j.earscirev.2014.03.004
小花和宏之・早川裕弌・ゴメス クリストファー (2014.07) UAV空撮とSfMを用いたアクセス困難地の3Dモデリング. 地形, 35 (3), 283-294. [ CiNii ]
[ Obanawa, H., Hayakawa, Y.S., Gomez, C. (2014.07) 3D modelling of inaccessible areas using UAV-based aerial photography and Structure from Motion. Transactions, Japanese Geomorphological Union, 35 (3), 283-294. ]
小花和宏之・早川裕弌・齋藤 仁・ゴメス クリストファー (2014.04) UAV-SfM手法と地上レーザ測量により得られたDSMの比較. 写真測量とリモートセンシング, 53 (2), 67-74. doi:10.4287/jsprs.53.67
[ Obanawa, H., Hayakawa, Y.S., Saito, H., Gomez, C. (2014.04) Comparison of DSMs derived from UAV-SfM method and terrestrial laser scanning. Journal of the Japan Society of Photogrammetry and Remote Sensing, 53 (2), 67-74. doi:10.4287/jsprs.53.67 ]
Dou, J., Oguchi, T., Hayakawa, Y.S., Uchiyama, S., Saito, H., Paudel, U. (2014.04) GIS-based landslide susceptibility mapping using a certainty factor model and its validation in the Chuetsu area, central Japan. In: Sassa, K., Canuti, P., Yin, Y. (eds.), Landslide Science for a Safer Geoenvironment, Vol. 2, 419-424, Springer International Publishing. doi:10.1007/978-3-319-05050-8_65
Yunus, A.P., Oguchi, T., Hayakawa, Y.S. (2014.04) Morphometric analysis of drainage basins in the western Arabian Peninsula using multivariate statistics. International Journal of Geosciences, 5 (5), 527-539 . doi:10.4236/ijg.2014.55049
Kontani, R., Sudo, H., Yamaguchi, Y., Hayakawa, Y.S., Odaka, T. (2014.03) An archaeological survey in the vicinity of Kültepe, Kayseri Province, Turkey. In: Atici, L., Kulakoğlu, F., Barjamovic, G., Fairbairn, A. (eds.) Current Research at Kültepe-Kanesh: An interdisciplinary and integrative approach to trade networks, internationalism, and identity.Journal of Cuneiform Studies Supplemental Series, 4, Lockwood Press, 95-106.
Hayakawa, Y.S., Oguchi, T. (2014.03) Spatial correspondence of knickzones and stream confluences along bedrock rivers in Japan: Implications for hydraulic formation of knickzones. Geografiska Annaler: Series A, Physical Geography, 96 (1), 9-19. doi:10.1111/geoa.12024
Hattanji, T., Ueda, M., Song, W., Ishii, N., Hayakawa, Y.S., Takaya, Y., Matsukura, Y. (2014.01) Field and laboratory experiments on high dissolution rates of limestone in stream flow. Geomorphology, 204, 485-492. doi:10.1016/j.geomorph.2013.08.027
Komatsu, G., Goto, K., Baker, V.R., Oguchi, T., Hayakawa, Y.S., Saito, H., Pelletier, J.D., Mcguire, L., Iijima, Y. (2014.01) Effects of tsunami wave erosion on natural landscapes: Examples from the 2011 Tohoku-oki Tsunami. In: Y. Kontar, V. Santiago-Fandiño, T. Takahashi (eds.), Tsunami Events and Lessons Learned; Environmental and Societal Significance. Springer, pp. 243-253. doi:10.1007/978-94-007-7269-4_13
2013
Nishiaki, Y., Guliyev, F., Kadowaki, S., Arimatsu, Y., Hayakawa, Y., Shimogama, K., Miki, T., Akashi, C., Arai, S, Salimbeyov, S. (2013.12) Hacı Elamxanlı Tepe: Excavations of the earliest Pottery Neolithic occupations on the Middle Kura, Azerbaijan, 2012. Archäologische Mitteilungen aus Iran und Turan, Dietrich-Reimer-Verlag, 45, 1-25.
Zhang, W., Oguchi, T., Hayakawa, Y.S., Peng H. (2013.11) Morphometric Analyses of Danxia Landforms in Relation to Bedrock Geology: A Case of Mt. Danxia, Guangdong Province, China. The Open Geology Journal, 7, 54-62. doi:10.2174/1874262901307010054
Oguchi, T., Wasklewicz, T., Hayakawa, Y.S. (2013.05) Remote data in fluvial geomorphology: characteristics and applications. In: Shroder, J. (ed.) Treatise in Geomorphology vol. 9: Fluvial Geomorphology. Academic Press, Elsevier, 711-729. doi:10.1016/B978-0-12-374739-6.00262-1
Oguchi, T., Hori, K., Watanuki, T., Oguchi, C.T., Komatsubara, J., Hayakawa, Y. (2013.01). Fluvial surfaces along the Khabur River near Tell Seker al-Aheimar and their palaeoenvironmental implications. In: Nishiaki, Y., Kashima, K., Verhoeven, M. (eds.) Neolithic Archaeology in the Khabur Valley, Upper Mesopotamia and Beyond. SENEPSE 15. Berlin: ex oriente, 236 p.
早川裕弌・松多信尚・前門 晃・松倉公憲 (2013.01) 集集地震により生じた台湾中西部における滝の地震後10年間の後退速度とその変化. 地形, 34 (1), 21-36. [ CiNii ]
[ Hayakawa, Y.S., Matsuta, N., Maekado, A., Matsukura, Y. (2013.01) Knickpoint recession rates for 10 years after the Chi-Chi Earthquake, central Taiwan. Transactions, Japanese Geomorphological Union, 34 (1), 21-36. (in Japanese with English abstract) ]
2012
Hattanji, T., Wasklewicz, T.A., Hayakawa, Y.S., Wester, T., Hegi, Y. (2012.11/12) Hydrogeomorphic effects of basin lithology on development of channel steps in first-order basins of the Ashio Mountains, Japan. Physical Geography, 33 (6), 536-560. doi:10.2747/0272-3646.33.6.536
Korup, O., Görüm, T., Hayakawa, Y.S. (2012.01) Without power? Landslide inventories in the face of climate change. Earth Surface Processes and Landforms, 37 (1), 92-99. doi:10.1002/esp.2248
柴田健一・鈴木洋佑・今泉文寿・早川裕弌 (2011.07) デジタルカメラと簡易レーザー距離計による山腹崩壊地の計測手法. 砂防学会誌:新砂防, 64 (2), 27-30. doi:10.11475/sabo.64.2_27
[ Shibata, K., Suzuki, Y., Imaizumi, F., Hayakawa, Y.S. (2011.07) The measurement method of landslides by digital camera and laser distance meter. Journal of the Japan Society of Erosion Control Engineering, 64 (2), 27-30. (in Japanese) doi:10.11475/sabo.64.2_27 ]
Hayakawa, Y.S. (2011.04) Postglacial recession rates of waterfalls in alpine glacial valleys. Transactions, Japanese Geomorphological Union, 32 (2), 179-184. [ CiNii ]
2010 and before
Hayakawa, Y.S., Matsukura, Y. (2010.10) Stability analysis of waterfall cliff face at Niagara Falls: An implication to erosional mechanism of waterfall. Engineering Geology, 116 (1-2), 178-183. 10.1016/j.enggeo.2010.08.004
Stark, C.P., Barbour, J.R., Hayakawa, Y.S., Hattanji, T., Hovius, N., Chen, H., Lin, C-W., Horng M-J., Xu K-Q., Fukahata, Y. (2010.03) The climatic signature of incised river meanders. Science, 327 (5972), 1497-1501. doi:10.1126/science.1184406
Imaizumi, F., Hattanji, T, Hayakawa, Y.S. (2010.02) Channel initiation by surface and subsurface flows in a steep catchment of the Akaishi Mountains, Japan. Geomorphology, 115, 32-42. doi:10.1016/j.geomorph.2009.09.026
Obanawa, H., Hayakawa, Y.S., Matsukura, Y. (2009.12) Rates of slope decline, talus growth and cliff retreat along the Shomyo River in central Japan: A space-time substitution approach. Geografiska Annaler, 91 (4), 269-278. doi:10.1111/j.1468-0459.2009.00369.x
早川裕弌, 青木 久, 藤永 豪, 前門 晃, 松倉公憲 (2009.07) 澁澤写真を用いた喜界島における台座岩の高さの推定:石灰岩地表面の溶解による低下速度の再検討. 地形, 30 (3), 227-231. [CiNii]
[ Hayakawa, Y.S., Aoki, H., Fujinaga, G., Maekado, A., Matsukura, Y. (2009.07) Reexamination of Surface Lowering Rate of Uplifted Reef Limestone in Kikai Island, Southwestern Japan, Derived from the Height of a Pedestal in Shibusawa Film. Transactions, Japanese Geomorphological Union, 30 (3), 227-231. (in Japanese with English abstract) ]
Hayakawa, Y.S., Oguchi, T. (2009.10) GIS analysis of fluvial knickzone distribution in Japanese mountain watersheds. Geomorphology, 111, 27-37. doi:10.1016/j.geomorph.2007.11.016
Hayakawa, Y.S., Matsukura, Y. (2009.09) Factors influencing the recession rate of Niagara Falls since the 19th century. Geomorphology, 110, 212-216. doi:10.1016/j.geomorph.2009.04.011
Hayakawa, Y.S., Tsumura, H. (2009.03/04) Utilization of laser range finder and differential GPS for high-resolution topographic measurement at Hacıtuğrul Tepe, Turkey. Geoarchaeology, 24 (2), 176-190. doi:10.1002/gea.20261
Hayakawa, Y.S., Ikeda, A. (2009.01) Accuracy assessment of a topographic mapping method with laser range finder and differential global positioning system: A case study for a rock glacier in the Swiss Alps. Transactions, Japanese Geomorphological Union, 30 (1), 29-38. [Fulltext PDF: CiNii]
Hayakawa, Y.S., Matsuta, N., Matsukura, Y. (2009.01) Rapid recession of fault-scarp waterfalls: Six-year changes following 921 Chi-Chi Earthquake in Taiwan. Transactions, Japanese Geomorphological Union, 30 (1), 1-13. [Fulltext PDF: CiNii]
早川裕一, 津村宏臣 (2008.10) LRFとDGPSを用いた野外調査における地形測量:トルコ,ハジトゥール・テペ遺跡における適用事例. 地形, 29 (4), 421-434. [CiNii]
[ Hayakawa, Y.S., Tsumura, H. (2008.10) A method of acquisition of detailed topographic data using LRF and DGPS for field survey: An application to an archaeological mound of Hacıtuğrul Tepe in Turkey. Transactions, Japanese Geomorphological Union, 29 (4), 421-434. (in Japanese with English abstract) ]
Hayakawa, Y.S., Oguchi, T., Lin, Z. (2008.10) Comparison of new and existing global digital elevation models: ASTER G-DEM and SRTM-3. Geophysical Research Letters, 35, L17404. doi:10.1029/2008GL035036
Hashimoto, A., Oguchi, T., Hayakawa, Y., Lin, Z., Saito, K., Wasklewicz, T.A. (2008.08) GIS analysis of depositional slope change at alluvial-fan toes in Japan and the American Southwest. Geomorphology, 100, 120-130. doi:10.1016/j.geomorph.2007.10.027
Hayakawa, Y.S., Yokoyama, S., Matsukura, Y. (2008.04) Erosion rates of waterfalls in post-volcanic fluvial systems around Aso volcano, southwestern Japan. Earth Surface Processes and Landforms, 33 (5), 801-812. doi:10.1002/esp.1615
Hayakawa, Y.S., Obanawa, H., Matsukura, Y. (2008.03) Post-volcanic erosion rates of Shomyo Falls in Tateyama, central Japan. Geografiska Annaler, 90A (1), 65-74. doi:10.1111/j.1468-0459.2008.00334.x
Hayakawa, Y.S., Oguchi, T., Komatsubara, J., Ito, K., Hori, K., Nishiaki, Y. (2007.03) Rapid on-site topographic mapping with a handheld laser range finder for a geoarchaeological survey in Syria. Geographical Research, 45 (1), 95-104. doi:10.1111/j.1745-5871.2007.00431.x
Hayakawa, Y.S., Oguchi, T. (2006.08) DEM-based identification of fluvial knickzones and its application to Japanese mountain rivers. Geomorphology, 78, 90-106. doi:10.1016/j.geomorph.2006.01.018
早川裕一, 横山勝三, 松倉公憲 (2005.12) 阿蘇火山・立野峡谷付近における滝の後退速度. 地形, 26 (4), 439-449. [CiNii]
[ Hayakawa, Y.S., Yokoyama, S., Matsukura, Y. (2005.12) Recession rates of waterfalls in and upstream of the Tateno Canyon, Aso Volcano. Transactions, Japanese Geomorphological Union, 26 (4), 439-449. (in Japanese with English abstract) ]
Hayakawa, Y.S., Wohl, E.E. (2005.12) Recession rate of Poudre Falls in Rocky Mountain Front Range, Colorado, USA. Geographical Review of Japan, 78 (12), 853-858. doi:10.4157/grj.78.853
Hayakawa, Y., Oguchi, T. (2005.07) Evaluation of gravel sphericity and roundness based on surface-area measurement with a laser scanner. Computers & Geosciences, 31 (6), 735-741. doi:10.1016/j.cageo.2005.01.004
Hayakawa, Y. (2005.05) Reexamination of a predictive equation of waterfall recession rates in Boso Peninsula, Chiba Prefecture, Japan. Geographical Review of Japan, 78 (5), 265-275. doi:10.4157/grj.78.265
早川裕一, 松倉公憲 (2003.07) 日光,華厳滝の後退速度. 地学雑誌, 112 (4), 521-530. doi:10.5026/jgeography.112.4_521
[ Hayakawa, Y., Matsukura, Y. (2003.07) Recession rates of Kegon Falls in Nikko, Tochigi Prefecture, Japan. Journal of Geography (Tokyo), 112 (4), 521-530. (in Japanese with English abstract) doi:10.5026/jgeography.112.4_521 ]
Hayakawa, Y., Matsukura, Y. (2003.06) Recession rates of waterfalls in Boso Peninsula, Japan, and a predictive equation. Earth Surface Processes and Landforms, 28 (6), 675-684. doi:10.1002/esp.519
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辻 誠一郎・早川裕弌・安芸早穂子・吉川昌伸・吉川純子・植田弥生・鈴木 茂・安 昭炫・一木絵理・安室 一(2016)三内丸山遺跡の集落景観の復原と図像化.特別史跡三内丸山遺跡年報, 20, 36–51.
[Tsuji, S., Hayakawa, Y.S., Aki, S., Yoshikawa, M., Yoshikawa, J., Ueda, Y., Suzuki, S., Ahn, S., Hitoki, E., Yasumuro, H. (2016) Reconstruction and visualization of settlement landscape of Sannai Maruyama site. Annual Report on Special Historical Site, Sannai-Maruyama Site, 20, 36–51. (in Japanese) ]
早川裕弌 (2015) 地すべりキーワード 101(ワン・オー・ワン)-14- 地上レーザ測量(TLS). 日本地すべり学会誌, 52 (5), 261-262. doi:10.3313/jls.52.261
[ Hayakawa, Y.S. (2015) key words -14- Terrestrial Laser Scanning (TLS). Journal of the Japan Landslide Society, 52 (5), 261-262. (in Japanese) ]
早川裕弌, 小口 高, 齋藤 仁 (2015) 口絵:三陸海岸姉吉地区における津波侵食地形とその測量調査 | Pictorial: Laser scanning survey reveals characteristics of erosional landforms by tsunami waves in the valley at Aneyoshi along the Sanriku Coast. 地学雑誌, 124, viii. doi:10.5026/jgeography.124.viii
Hayakawa, Y.S., Oguchi, T., Kobayashi, H.H., Mendoza, R., De Paz, M.N., Badong, J.D., Seto, T., Kondo, Y. (2015) Developing a Prototype of Geospatial Data Sharing and Analysis System for Disaster Management in the Philippines: A Case Study on Typhoon Haiyan (Yolanda). CSIS Discussion Paper, 139, 1-24. [Fulltext PDF]
Hayakawa, Y.S., Hotta, N. (2014) Erosion control and climate change in Japan. In: Kohler, T., Wehrli, A., Jurek, M., eds. Mountains and climate change: A global concern. Sustainable Mountain Development Series. Bern, Switzerland, Centre for Development and Environment (CDE), Swiss Agency for Development and Cooperation (SDC) and Geographica Bernensia, 68-69.
Hayakawa, Y.S., Tsumura, H. (2008) Accuracy assessment of a post-process differential GPS device: A case study in Kaman and Hacıtuğrul, central Turkey. Anatolian Archaeological Studies, 17, 265-269.
Hattanji, T., Oguchi, T., Oguchi, C.T., Hayakawa, Y.S., Song, W, De Rose, R. (2008) Field Trip Guide of the COMLAND Pre-symposium Field Trip in Japan: Land Degradation Processes, Dynamics of Land Degradation. IGU Commission on Land Degradation and Desertification, 22p.
Hayakawa, Y.S. (2007) Construction of Digital Landform Dataset at Kaman-Kalehöyük: Method Improvement by Automated Data Collection of Laser Range Finder. Anatolian Archaeological Studies, 16, 169-176.
Hayakawa, Y.S., Kashima, K. (2006) Topographic map construction using a handheld laser range finder and GIS at Kaman-Kalehöyük and Kültepe. Anatolian Archaeological Studies, 15, 191-195.
Hayakawa, Y., Aoki, H., Matsukura, Y. (2004) Evaluation of recession rates of Kaminari Falls in the upper Matsukawa River, Takayama Village, Nagano Prefecture. Annual Report of Institute of Geoscience, University of Tsukuba, 30, 21-25.
Hayakawa, Y., Matsukura, Y. (2002) Recession rates of waterfalls: a brief review. Annual Report of Institute of Geoscience, University of Tsukuba, 28, 1-4.
東京大学大学院理学系研究科(地球惑星科学専攻)
Spatial distribution and formation of fluvial knickzones in Japanese mountain watersheds
(日本の山地流域における河床遷急区間の分布と形成)
学位: 平成19(2007)年3月22日 博士(理学) (博理 第5014号)
修士論文
東京大学大学院理学系研究科(地球惑星科学専攻)
Hayakawa, Y. (2004): Form and distribution of fluvial knickzones in mountainous watersheds: A GIS analysis for Kanto, Japan.
(山地流域における河床遷急区間の形態と分布―関東地方におけるGISによる研究)
学位: 平成16(2004)年3月25日 修士(理学) (修理 第9880号)
卒業論文
筑波大学第一学群自然学類(地球科学専攻 地形学研究室)
Hayakawa, Y. (2002): Rates of waterfall recession in Boso Peninsula, Japan. (房総半島における滝の後退速度)
学位: 平成14(2002)年3月25日 学士(理学)