Flood Prevention Strategy in Taiwan: Lessons Learned from Typhoon Morakot

2010 ◽  
Vol 5 (3) ◽  
pp. 325-329 ◽  
Author(s):  
Lung-Sheng Hsieh ◽  
◽  
Jiun-Huei Jang ◽  
Hsuan-Ju Lin ◽  
Pao-Shan Yu
Keyword(s):  
River Flow ◽  
Strong Field ◽  
River Basin Management ◽  
Field Investigation ◽  
Lessons Learned ◽  
Typhoon Morakot ◽  
Hydraulic Facility ◽  
Flood Prevention ◽  
System Failures ◽  
Climate Change Assessment

Typhoon Morakot hit Taiwan during August 7-9, 2009. Its record-breaking rainfall caused catastrophic damage, making it the deadliest typhoon to visit Taiwan in the last 50 years. Conducting a three-months and 160-member-strong field investigation of the scale and causes of this disaster, this paper proposes strategies effective to improve flood prevention work in Taiwan. The severe flood disaster triggered by Typhoon Morakot’s excessive rainfall is attributable to four factors: (1) hydraulic system failures, (2) river flow retardation, (3) reservoir release, and (4) land subsidence. Based on these findings, this paper proposes comprehensive improvement strategies in hydraulic facility inspection, emergency response, river basin management, and climate change assessment to improve flood prevention work in Taiwan. This study combines governmental, academic, and public efforts in investigating effective post-disaster flood prevention strategies that we hope will prove to be a useful reference for other countries while facing such issues.

Kajian Debit Sungai di DAS Wae Ruhu, Kota Ambon

2018 ◽  
Vol 1 (1) ◽  
pp. 18-23
Author(s):  
Matheus Souisa ◽  
Paulus R. Atihuta ◽  
Josephus R. Kelibulin
Keyword(s):  
River Discharge ◽  
River Flow ◽  
Secondary Data ◽  
Data Retrieval ◽  
Sediment Discharge ◽  
Flood Prevention ◽  
Retrieval Processes ◽  
Water Catchment ◽  
Steep Slopes ◽  
Station Point

Ambon City is a region consisting of hilly areas and steep slopes with diverse river characteristics. Research has been carried out in the Wae Ruhu watershed in Ambon City which starts from upstream (water catchment) to downstream. This study aims to determine the magnitude of river discharge and sediment discharge in the Wae Ruhu watershed. This research was conducted in several stages including, secondary data collection, research location survey, preparation of research tools and materials as well as field data retrieval processes which included tracking coordinates at each station point and entire watershed, calculation of river flow velocity, river geometry measurements, and sampling sediment. The results showed that the average river discharge in the Wae watershed in the year 2018 was 1.24 m3 / s, and the average sediment discharge was 6.27 kg / s. From the results of this study and the field observations proposed for flood prevention and the rate of sediment movement are the construction of cliffs with sheet pile and gabions.

scholarly journals Discharge of landslide-induced debris flows: case studies of Typhoon Morakot in southern Taiwan

2014 ◽  
Vol 2 (1) ◽  
pp. 315-346
Author(s):  
J.-C. Chen ◽  
M.-R. Chuang
Keyword(s):  
Debris Flow ◽  
Case Studies ◽  
Debris Flows ◽  
Maximum Flow ◽  
Field Investigation ◽  
Typhoon Morakot ◽  
Flow Discharge ◽  
Modeling Software ◽  
Southern Taiwan ◽  
Deposition Depth

Abstract. Three debris-flow gullies, the Hong-Shui-Xian, Sha-Xin-Kai, and the Xin-Kai-Dafo gullies, located in the Shinfa area of southern Taiwan were selected as case studies of the discharge of landslide-induced debris flows caused by Typhoon Morakot in 2009. The inundation characteristics of the three debris flows, such as the debris-flow volume, the deposition area, maximum flow depth, and deposition depth, were collected by field investigations and simulated using the numerical modeling software FLO-2D. The discharge coefficient cb, defined as the ratio of the debris-flow discharge Qdp to the water-flow discharge Qwp, was proposed to determine Qdp, and Qwp was estimated by a rational equation. Then, cb was calibrated by a comparison between the field investigation and the numerical simulation of the inundation characteristics of debris flows. Our results showed that the values of cb range from 6 to 18, and their values are affected by the landslide ratio The empirical relationships between Qdp and Qwp were also presented.

Lessons Learned from the Analysis of System Failures at Petascale: The Case of Blue Waters

2014 ◽  
Author(s):  
Catello Di Martino ◽  
Zbigniew Kalbarczyk ◽  
Ravishankar K. Iyer ◽  
Fabio Baccanico ◽  
Joseph Fullop ◽  
...  
Keyword(s):  
Lessons Learned ◽  
System Failures

scholarly journals (P1-4) Building Resilient Extended-Care Facilities during Natural Disasters – Lessons Learned From the 2007 Tulsa, Oklahoma Ice Storm

2011 ◽  
Vol 26 (S1) ◽  
pp. s100-s100
Author(s):  
C.E. Stewart ◽  
J. Gulden
Keyword(s):  
Natural Disasters ◽  
Healthcare Systems ◽  
Lessons Learned ◽  
Ice Storm ◽  
Power Outages ◽  
Public Health Response ◽  
System Failures ◽  
South Central ◽  
Extended Care ◽  
Care Facilities

Building Resilient Extended-Care Facilities During Natural Disasters – Lessons Learned from the 2007 Tulsa, Oklahoma Ice Storm. In the last decade, increasing importance has been placed on building resiliency into critical healthcare systems. This has meant shifting the paradigm from focusing on response to one of preparedness. In 2007, an ice storm as part of a series of winter storms occurred in the south central United States causing extensive power outages, in Tulsa, Oklahoma, for a period of up to 3 weeks. Five of the six tertiary care hospitals in Tulsa suffered power outages, phone system failures or oxygen and/or suctioning system failures. Local water treatment plants were without power for 48 hours. During this time, multiple extended-care (nursing home) patients were discharged to homes or transferred to hospitals because the nursing homes were not prepared to cope with an extended power outage. This paper is a retrospective analysis and discussion of lessons learned with respect to the vulnerability of these extended-care healthcare systems and the public health response during natural disasters.

scholarly journals Solar Water Heating Systems Applied to High-Rise Buildings—Lessons from Experiences in China

Energies ◽  
2019 ◽  
Vol 12 (16) ◽  
pp. 3078 ◽  
Author(s):  
Huang ◽  
Fan ◽  
Furbo ◽  
Li
Keyword(s):  
Economic Performance ◽  
Large Scale ◽  
Practical Experience ◽  
Field Investigation ◽  
Lessons Learned ◽  
Water Heating ◽  
Solar Water Heating ◽  
Solar Water ◽  
High Rise

High-rise buildings have a significant impact on the surrounding environment. Building-integrated solar water heating (SWH) systems are effective ways to use renewable energy in buildings. Impediments, such as security concerns, aesthetics and functionality, make it difficult to apply SWH systems in high-rise buildings. At present, only China uses SWH systems on a large scale in such buildings. What are China’s experiences and lessons learned in applying SWH systems in high-rises? Are these experiences scalable to other countries? This study used a combination of field investigation, literature review and case study to summarize 36 systems that had been in operation for 1–14 years. System types, collector types, installation methods, types of auxiliary heat sources, economic performance and various basic principles were summarized. The economic performance of SWH systems in high-rise buildings was analyzed and verified by a case study in Shanghai. The results show that the installation of SWH systems in high-rise buildings is feasible and reliable as long as appropriate design, construction, operation, and maintenance measures are employed. China's unique practical experience gives a reference for other countries in their efforts to make high-rise buildings more sustainable.

scholarly journals History, rationale, and lessons learned: Thresholds of potential concern in Kruger National Park river adaptive management

Koedoe ◽  
2011 ◽  
Vol 53 (2) ◽  
Author(s):  
Craig A. McLoughlin ◽  
Andrew Deacon ◽  
Hendrik Sithole ◽  
Thomas Gyedu-Ababio
Keyword(s):  
Adaptive Management ◽  
National Park ◽  
River Flow ◽  
Research Programme ◽  
Lessons Learned ◽  
Kruger National Park ◽  
Management Options ◽  
Conservation Implications ◽  
New Thinking ◽  
Learning And Adaptation

The Kruger National Park’s (KNP) adopted system of management, called Strategic Adaptive Management (SAM), originated during the Kruger National Park Rivers Research Programme (KNPRRP) of the 1990s. An important concept in SAM is the thresholds of potential concern (TPCs), representing end-points in a continuum of change. TPCs within the KNP SAM system guide management if or when reached, ‘red-flagging’ possible negative biodiversity impacts and catalysing consideration of management options. TPC-related monitoring generates the strategic information for ongoing evaluation, learning and adaptation within SAM. Post- KNPRRP, although river flow and water quality TPCs have been implemented partly, those designed to detect undesirable changes in biodiversity have not been implemented, until recently. This paper describes the history, rationale, application and ongoing developments associated with the KNP river TPCs over the last decade, providing some key lessons for organisations utilising SAM. The paper concludes with an overview of new thinking and future directions envisaged for the KNP river TPCs, as part of the KNP SAM system. Conservation implications: This paper documents important concepts of strategic adaptive management associated with the KNP river systems. Understanding, related to the rationale and justification for use and development or refinement of the thresholds of potential concern, lays an important foundation for ongoing work in managing these rivers adaptively.

scholarly journals Observations from the 26th November 2019 Albania earthquake: the earthquake engineering field investigation team (EEFIT) mission

2021 ◽  
Vol 19 (5) ◽  
pp. 2013-2044 ◽  
Author(s):  
Fabio Freddi ◽  
Viviana Novelli ◽  
Roberto Gentile ◽  
Enes Veliu ◽  
Stoyan Andreev ◽  
...  
Keyword(s):  
Earthquake Engineering ◽  
Field Investigation ◽  
Lessons Learned ◽  
Economic Consequences ◽  
Building Stock ◽  
Seismic Design Code ◽  
Surrounding Areas ◽  
Observed Damage ◽  
Northwest Region ◽  
The City

AbstractOn the 26th of November 2019, an earthquake of moment magnitude 6.4 struck the northwest region of Albania as the result of thrust faulting near the convergent boundary of the Africa and Eurasia plates causing widespread damage to buildings in the city of Durrës and the surrounding areas. Based on the official data from the national authorities, the earthquake caused 51 casualties and 985 million-euro losses, corresponding to 7.5% of the 2018 gross domestic product. This paper summarises field observations made by the Earthquake Engineering Field Investigation Team (EEFIT) after the event. The paper presents an overview of the seismological aspects of the earthquake together with a brief overview of the damage, official loss statistics and the estimated macro- and socio-economic consequences of the event. In addition, it provides a summary of the observed damage to both recent and historical buildings as well as the description of several case studies to illustrate the characteristic damage patterns observed in the main structural typologies of the Albanian building stock. These observations try to identify possible links between the observed damage patterns and the deficiencies in construction practice and use of inappropriate retrofit techniques for historical assets. As many severe damages were observed on modern buildings, this also allows the identification of some gaps and possible areas of development of the current seismic design code. In the end, the lessons learned from the field survey are resumed.

scholarly journals Evaluation Study of Kedunglarangan River To Protect Flood In Pasuruan and Sidoarjo

2019 ◽  
Vol 1 (1) ◽  
pp. 55-62
Author(s):  
Ni Nyoman Adum M
Keyword(s):  
Flood Control ◽  
River Flow ◽  
Water Reservoir ◽  
Evaluation Study ◽  
Water Levels ◽  
Work Study ◽  
Flood Prevention ◽  
River Flood ◽  
Excavation Work ◽  
The Impact

Construction of the Kedunglarangan river flood control system designed to prevent flooding every rainy season in the Bangil sub-district. Kedunglarangan River is a river that flows in two regencies Sidoarjo and Pasuruan which has an area of 282.67 km2 watershed with a river length of 23.7 km. Kedunglarangan river has 4 (four) watershed sub-systems. The scope of this flood prevention work-study is the normalization of the Kedunglarangan River starting from the meeting with the Wrati River downstream up to 7 km. Normalization work is carried out with excavation and river widening to meet flood discharge in accordance with the conditions of the study area. If the river excavation work is done in accordance with the design master will form a basin that causes the creation of a dike. In this condition, it will be a temporary water reservoir where the water velocity is very low. So the work carried out the impact is only temporary. From the results of analysts, it is more efficient to do river widening and embankment raising rather than increasing river depth. River excavation work like that is very risky to create very fast sedimentation. Normalization method with river widening is one way to maintain the river flow downstream and flood water levels

scholarly journals Three decades of pastoralist settlement dynamics in the Ethiopian Omo Delta based on remote sensing data

Human Ecology ◽  
2021 ◽  
Author(s):  
Samira Amos ◽  
Sileshi Mengistu ◽  
Fritz Kleinschroth
Keyword(s):  
Remote Sensing ◽  
River Flow ◽  
Remote Sensing Data ◽  
River Basin Management ◽  
Anthropogenic Pressure ◽  
Pastoralist Communities ◽  
The North ◽  
Settlement Dynamics ◽  
Negative Impacts ◽  
Ground Truthing

AbstractRiver deltas provide important livelihoods to local populations, but at the same time are under increasing anthropogenic pressure. The opening of the Gibe III dam on the Omo River in Ethiopia in 2016 attracted international attention due to the importance of the free-flowing River for pastoralist communities in the Omo Delta. Sustainable river basin management requires spatially explicit, long-term information about human settlements to mitigate negative impacts on people’s livelihoods. Based on remote sensing time-series, and supplemented with ground-truthing, we mapped settlement-dynamics of the pastoralist Dasanech tribe. The inhabited area more than doubled from 1992 to 2009. From 2009 to 2019, settlements became more permanent and concentrated in the North of the Delta. Our results indicate that the Omo Delta has overall gained in importance as a livelihood area, but that the livelihoods of the traditionally nomadic people are shifting in the context of increasing investment in infrastructure. Management of future river flow at dams should consider the location and the trajectory of change in downstream settlements.

Sign in / Sign up

Export Citation Format

Share Document