Home issue 3 2010/12/15 

Research and Evaluation of Sedimentation at Xingda Harbor

Date: December 15th, 2009

  Taiwan Ocean Research Institute (TORI) held a briefing for its Coastal Ocean Dynamics Application Radar (CODAR) system on December 15th, 2010, inviting representatives from the government, academia, industry, and research institutes for discussion and opinions sharing. It is projected that the surface current data retrieved by these radars will become available to the above-mentioned parties by June to September, 2010. Since its launch on July 11th, 2008, TORI has endeavored to promote the establishment of various marine technology-related infrastructure and observation platforms. Of these, three CODARs have seen completion this year (2009) to facilitate the observation of ocean surface currents in sea areas around Taiwan. The systems are located on the east coast of Taiwan, aimed at supporting Kuroshio-current research as well as local rescue and disaster relief efforts. The three CODARs have gone through multiple antenna pattern measurement (APM) tests between October and December of 2009. Additional data quality control tests are projected to take place sometime between January and March, 2010. TORI is especially cautious in this endeavor as the radar systems are among Taiwan's pioneering large ocean surface current observation facilities. A total of 27 representatives graced this exciting yet rather unexpectedly haste event, due to the recent completion of the systems and TORI's eagerness to share the news. Ten delegates from both the academia and the public sector were able to attend the briefing, while three and four attendees were respectively from research institutes and the industry. The meeting began with TORI's reports on the radars' background and tentative schedule, as well as the regulations on data access and usage. Participants expressed interest and expectations concerning the timeliness, accuracy, bandwidth, and coverage of the data, while touching on issues pertaining to collaboration and rescue and disaster relief. Results of the preliminary survey on research interests and applications are as follows: rescue10.5%, disaster relief 21%, environment 5.3%, ecology 5.3%, fisheries 10.5%, geosciences 10.5%, atmosphere 15.8%, oil leakage 15.8%, and others 5.3%. TORI plans to take these results into consideration for future improvement, and pledges to continue working on the construction of CODAR systems around Taiwan. The CODARs are projected to start functioning in 2010.

Research and Evaluation of Sedimentation at Xingda Harbor

Date: December, 2009

 

 To ensure the navigational safety of research vessels, Taiwan Ocean Research Institute (TORI) has commissioned an engineering consultant company to evaluate the maintenance options for channels leading to Xingda Harbor's headquarters and its anchorage area. The research also aimed at identifying the degree of damage that drift-sand has caused in the harbor area. Xingda Harbor is located on the coastline of Jiading in Kaohsiung County, alongside TaPower's Xingda power plant. Its adjacent coastal gradient is approximately 1/200, and due to the decreased amount of sand source from rivers, erosion marks the overall feature of its coastline. Analysis of the water depth changes shows that the channel section between the inner harbor and the anchorage exhibits a depth alteration of 10 to 20cm from August to October, 2009 (Figure 2); minor deposition of 20 to 30cm is also found in the berth area due to heavy rain on the land that brought silt in through the lagoons. It is also found that Typhoon Morakot has induced deposition in the port's seawall area (Figure 3), and that the five and six-meter depth lines have extended north. The research additionally shows that deposition near the channel port and inner channel is respectively caused by drift sand from the outer sea and by lagoon drainage. Data simulation further indicates that siltation in the harbor in the coming year will take place mainly between the northern and southern seawalls, culminating in a silt depth of around 0.2m to 0.4m. Within five years' time, the siltation will expand north to exceed the northern seawall, though the erosion there should shave the deposition depth to around 0.4m to 1.2 m. The southern breakwaters are expected to suffer from the most severe cases of siltation. It has been 12 years since Xingda Harbor last received a dredging job. To ensure the safety of TORI's research vessels, which will commence using this harbor in 2012, a report has been presented to Kaohsiung County. The institute requests a dredging project that would return the harbor to its original channel depth of eight meters and berthing area depth of seven meters. Approximately 383,000 square meters of silt will have to be removed to reach this goal. Continued monitoring is necessary to determine further dredging plans in the coming years.

TaiCOAST Site Assessment Complete, to Setup Coastal Station in 2010

Date: December 8-9, 2009

  With vigor and spirit, the Taiwan Ocean Research Institute (TORI) has been promoting the establishment of TaiCOAST—a national laboratory dedicated to the advancement of coastal technology research, providing research results to government agencies, the academia, national enterprises and the industries. Its aims are to make up for the restrictions that indoor laboratories are susceptible to, elevate the design quality of projects, and provide information needed for coastal management and policymaking. In April, 2009, a seminar of experts and specialists recommended the Xinwu area in Taoyuan County as a suitable location for TaiCOAST. From July to November, the institute further commissioned professionals to evaluate the viability of the site. The primary research goals are as indicated in Table 1. TORI welcomes further input from all experts and specialists.

Basic Re-enforcement Complete for Lanyu Coral Reefs Observatory

Date: December 2009

  Taiwan Ocean Research Institute (TORI) took damage prevention and reinforcement measures on behalf of the Lanyu coral reefs observatory. The institute retrieved the underwater lens used for real-time image observation for maintenance due to incoming Typhoon Parma in October, 2009. Lightening protectors were additionally installed in the server room, while circuit inspection and maintenance were performed later in December; an underwater camera was also added to complete the video connection. Images captured by the system are now viewable through the intranet, though further testing is required before opening up real-time online viewing to the public.

 

Report on Collaboration between TORI, Coast Guard Administration

Date: December 14, 2009

  After months of work, Taiwan Ocean Research Institute (TORI) finally secures the support of the Coast Guard Administration (CGA) in marine observation and marine technology research. The "Marine Technology Collaboration Mechanism Conference" was held at CGA in the afternoon of December 14, 2009, hosted by CGA minister Wang Jinn-Wang. Superintendents from both organizations were present at this event. CGA owns vessels covering the vastest marine area in Taiwan, and may, as a result of the collaboration, reap benefits from the advanced marine technology, its breakthroughs, and the marine data collected. TORI director Forng-Chen Chiu gave a brief report on how CGA can greatly support TORI and the academia with minimal just effects on its routine marine patrol activities. Some possible assistance include allowing automatic measurement equipment on board for data collection, facilitating the distribution and collection of simple floating devices, and helping to monitor or rescue defected and dislocated floating devices or equipment when necessary. Minister Wang stated after much discussion that the country's administration system should work as a whole and share national resources. He designated the Planning Department as the window to TORI, authorizing it to work out the details and mechanism for future collaboration. A reciprocal mechanism is expected to form between the two organizations.
TORI Retrieves Sediment Trap Mooring System

Date: December 8-9, 2009

  The Marine Resources & Disaster Prevention Division at Taiwan Ocean Research Institute (TORI) has successfully retrieved its sediment trap mooring system on December 8 to 9, 2009. The system was collected after completing a one month monitoring task of the submarine landslides southwest of the Ryukyu Islands. Preliminary analyses show a stable sediment flow in this region during winter. Findings from this research may become a foundation for establishing submarine landslide warning models in the future. This expedition also saw the successful testing of a newly purchased global positioning system with significant "cm-level" accuracy. This year the submarine landslide monitoring team of the Marine Resources & Disaster Prevention Division was able to deploy and retrieve the sediment trap mooring system twice in the sea area southwest of Taiwan. Substantial amounts of hydrology data and core samples were also collected during the assignments. All parties are welcomed to apply for access to the data, useful for climate change studies.

Global Seafloor Topography Map Completed in Chinese and English

Date: December, 2009

 To promote marine awareness and provide material for marine science education under the globe structure, the Ocean Information & Database Division of Taiwan Ocean Research Institute (TORI) has completed a map on global seafloor topography in both Chinese and English. The map may prove helpful in marine science education and related discussions. The just published map adopts the Taiwan marine territory as centerline, covers three oceans, and includes the topography under icecaps in Arctic and Antarctic. In its original size, the 300 dpi map is 36in in height and 87in in width— fit for large format printing. The institute has provided a copy to the National Museum of Marine Science and Technology for the "Deep Sea" special exhibition in December, 2009. TORI will also post the topography on its website for free download. All feedbacks are welcome.

Report on 2009 Marine Cores Workshop for Students

Date: November 27th, 2009

  In response to a growing need for deep sea drilling techniques both for research and application purposes, Taiwan Ocean Research Institute (TORI) hosted a deep sea sediment core experiment workshop together with National Taiwan Ocean University on November 27th, 2009. The participants were students and research personnel from marine related academic institutions in the country. The courses are designed to ensure that participants have a better grasp of the way marine cores are collected and processed. Students are given introductions to deep sea drilling equipment, research vessel OR2, sediment core processing, non-destructive assay, and sediment core color reflection measurement methods. Also included in the workshop is a guided tour to Marine Core Repository and Laboratory (MCRL). Students gained hands-on experience in taking and interpreting digital images of marine cores and in measuring marine core color reflection. At the end of the workshop, they boarded the OR2 for a first-hand experience in deep-sea drilling.

TORI Plans Control Room for 3,000m Underwater ROV

   New research vessels for Taiwan Ocean Research Institute (TORI) will be equipped with remotely operated vehicles (ROV) that can dive as deep as 3,000 m to extend the vessels' range of operation. The ROVs will generally engage in accurately positioned marine core sampling, image recording, hydrological data gathering, underwater observatory set-up, cabling, plugging/unplugging, and capturing of sea creatures. These tasks will be performed with scientists and technicians taking charge inside the control room, located on the main deck of the research vessel.

TORI Holds Training for Side Scan Sonar System and Processing Software

Date: November 2009

  Taiwan Ocean Research Institute (TORI) has held training for its newly procured dual mode side scan sonar equipment, pressure and depth sensor, and marine data post-processing software. Staff from both the Biological Oceanography Division and Marine Resources & Disaster Prevention Division participated in the indoors training and actual testing on the sea. Participants learned to administer the software as well as to familiarize with the theory behind the system. Under the company of a technician from the equipment distributor, an actual testing was conducted just outside the Port of Kaohsiung. The new system will be used to map out the distribution of marine biology and marine habitats landforms surrounding Taiwan.

Research Vessel Construction Report

Date: October - November, 2009

  Shipyard staff from Taiwan Ocean Research Institute (TORI) paid visit to the US Scripps Institution of Oceanography research vessel, Roger Revelle, at the Port of Kaohsiung. Apart from observing the design concepts, a contract was signed with the Noise Control Engineering (NCE) consultant company, thus wrapping up the ship model test report. Issues regarding noise control and work description were also discussed during the meeting. A general layout was agreed upon and completed in November after numerous discussions and alterations. Main adjustments were made turning all staff cabins into suites. A more integral set of construction regulations also resulted, laying down a more solid foundation for the construction of research vessels.

 
TORI Copyright© 2009 Address:3F, No. 106, Ho-Ping E. Road, Sec. 2, Taipei 106, Taiwan  
TEL:02-02-6630-0673|Address:02-6630-0600|