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Wang, J.Y., Yang, S.-C., and Reeves, R.R
REPORT OF THE FIRST WORKSHOP ON CONSERVATION AND RESEARCH NEEDS OF INDO-PACIFIC HUMPBACK DOLPHINS, SOUSA CHINENSIS, IN THE WATERS OF TAIWAN 25-27 FEBRUARY 2004, WUCHI, TAIWAN Edited by John Y. Wang1,2, Shih-Chu Yang3, and Randall R. Reeves4 1FormosaCetus Research and Conservation Group, 310-7250 Yonge St., Thornhill, Ontario, CANADA, L4J-7X1 2National Museum of Marine Biology & Aquarium, 2 Houwan Road, Checheng, Pingtung County, 944, TAIWAN 3FormosaCetus Research and Conservation Group, 5F-5, #78, Chung-Mei 13 Street, Hualien, Hualien County, TAIWAN. 4Okapi Wildlife Associates, 27 Chandler Lane, Hudson, Quebec, J0P 1H0, CANADA Hosted by: National Museum of Marine Biology & Aquarium (Taiwan) Sponsored by: National Science Council (Taiwan) Forestry Bureau, Council of Agriculture (Taiwan) Ocean Park Conservation Foundation (Hong Kong) Marine Education Foundation of the National Museum of Marine Biology & Aquarium (Taiwan) Marine Education and Promotion Foundation (Taiwan) Additional Supporters: FormosaCetus Research and Conservation Group Hong Kong Dolphin Conservation Society The First Symposium and Workshop on Conservation and Research Needs of Indo- Pacific Humpback Dolphins, Sousa chinensis, in the Waters of Taiwan was hosted by Lee-Shing Fang (President of the National Museum of Marine Biology and Aquarium). Published by: The National Museum of Marine Biology and Aquarium, Checheng, Pingtung County, Taiwan Copyright: © 2004 The National Museum of Marine Biology and Aquarium Reproduction of this publication for educational or other non-commercial purposes is fully authorized without prior written permission from the copyright holder provided the source is fully acknowledged (also see citation below). Reproduction of this publication for resale or other commercial purposes is prohibited without prior written permission from the copyright holder. -
Large-Scale Particle Image Velocimetry to Measure Streamflow
remote sensing Article Large-Scale Particle Image Velocimetry to Measure Streamflow from Videos Recorded from Unmanned Aerial Vehicle and Fixed Imaging System Wen-Cheng Liu 1,* , Chien-Hsing Lu 1 and Wei-Che Huang 2 1 Department of Civil and Disaster Prevention Engineering, National United University, Miaoli 36063, Taiwan; [email protected] 2 College of Engineering and Science, National United University, Miaoli 36063, Taiwan; [email protected] * Correspondence: [email protected]; Tel.: +886-37-382357 Abstract: The accuracy of river velocity measurements plays an important role in the effective management of water resources. Various methods have been developed to measure river velocity. Currently, image-based techniques provide a promising approach to avoid physical contact with targeted water bodies by researchers. In this study, measured surface velocities collected under low flow and high flow conditions in the Houlong River, Taiwan, using large-scale particle image velocimetry (LSPIV) captured by an unmanned aerial vehicle (UAV) and a terrestrial fixed station were analyzed and compared. Under low flow conditions, the mean absolute errors of the measured surface velocities using LSPIV from a UAV with shooting heights of 9, 12, and 15 m fell within 0.055 ± 0.015 m/s, which was lower than that obtained using LSPIV on video recorded from a terrestrial fixed station (i.e., 0.34 m/s). The mean absolute errors obtained using LSPIV derived Citation: Liu, W.-C.; Lu, C.-H.; from UAV aerial photography at a flight height of 12 m without seeding particles and with different Huang, W.-C. Large-Scale Particle seeding particle densities were slightly different, and fell within the range of 0.095 ± 0.025 m/s. -
2007. Report of the Second International Workshop On
REPORT OF THE SECOND INTERNATIONAL WORKSHOP ON CONSERVATION AND RESEARCH NEEDS OF THE EASTERN TAIWAN STRAIT POPULATION OF INDO-PACIFIC HUMPBACK DOLPHINS, SOUSA CHINENSIS 4-7 SEPTEMBER 2007, CHANGHUA CITY, TAIWAN Edited by John Y. Wang1,2, Shih Chu Yang3, and Randall R. Reeves4 1FormosaCetus Research & Conservation Group, 310-7250 Yonge St., Thornhill, Ontario, CANADA, L4J-7X1 2National Museum of Marine Biology & Aquarium, 2 Houwan Road, Checheng, Pingtung County, TAIWAN 3FormosaCetus Research & Conservation Group, 5F-5, #78, Chung-Mei 13 Street, Hualien City, TAIWAN. 4Okapi Wildlife Associates, 27 Chandler Lane, Hudson, Quebec, J0P 1H0, CANADA FormosaCetus Research & Conservation Group Hosted by: National Museum of Marine Biology and Aquarium (Taiwan) Co-Hosted by: FormosaCetus Research & Conservation Group (Taiwan & Canada) Wild At Heart Legal Defense Association (Taiwan) Sponsored by: Ministry of Education (Taiwan) National Science Council (Taiwan) (96-2916-I-110-009-A1) Forestry Bureau, Council of Agriculture (Taiwan) (96-林發-03.1-保 30) Ocean Park Conservation Foundation, Hong Kong (Hong Kong) Winkler Partners (Taiwan) Humane Society International (USA) Natural Resources Defense Council (USA) Additional Supporters: Matsu’s Fish Alliance (Taiwan) Taiwan Academy of Ecology (Taiwan) Hong Kong Dolphin Conservation Society (Hong Kong) The Second International Workshop on Conservation and Research Needs of the Eastern Taiwan Strait Population of Indo-Pacific Humpback Dolphins, Sousa chinensis was hosted by Wei-Hsien Wang, Executive Director of the National Museum of Marine Biology and Aquarium Venue & dates: Formosa Hotel, Changhua City, Changhua County, Taiwan; 4-7 September 2007 Published by: National Museum of Marine Biology and Aquarium, Checheng, Pingtung County, Taiwan Copyright: © 2007 National Museum of Marine Biology and Aquarium Reproduction of this publication for educational or other non-commercial purposes is fully authorized without prior written permission from the copyright holder provided the source is fully acknowledged (see citation below).