PHILIPPINES: TYPHOONS December 09, 2004
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Ensemble Forecast Experiment for Typhoon
Ensemble Forecast Experiment for Typhoon Quantitatively Precipitation in Taiwan Ling-Feng Hsiao1, Delia Yen-Chu Chen1, Ming-Jen Yang1, 2, Chin-Cheng Tsai1, Chieh-Ju Wang1, Lung-Yao Chang1, 3, Hung-Chi Kuo1, 3, Lei Feng1, Cheng-Shang Lee1, 3 1Taiwan Typhoon and Flood Research Institute, NARL, Taipei 2Dept. of Atmospheric Sciences, National Central University, Chung-Li 3Dept. of Atmospheric Sciences, National Taiwan University, Taipei ABSTRACT The continuous torrential rain associated with a typhoon often caused flood, landslide or debris flow, leading to serious damages to Taiwan. Therefore the quantitative precipitation forecast (QPF) during typhoon period is highly needed for disaster preparedness and emergency evacuation operation in Taiwan. Therefore, Taiwan Typhoon and Flood Research Institute (TTFRI) started the typhoon quantitative precipitation forecast ensemble forecast experiment in 2010. The ensemble QPF experiment included 20 members. The ensemble members include various models (ARW-WRF, MM5 and CreSS models) and consider different setups in the model initial perturbations, data assimilation processes and model physics. Results show that the ensemble mean provides valuable information on typhoon track forecast and quantitative precipitation forecasts around Taiwan. For example, the ensemble mean track captured the sharp northward turning when Typhoon Megi (2010) moved westward to the South China Sea. The model rainfall also continued showing that the total rainfall at the northeastern Taiwan would exceed 1,000 mm, before the heavy rainfall occurred. Track forecasts for 21 typhoons in 2011 showed that the ensemble forecast has a comparable skill to those of operational centers and has better performance than a deterministic prediction. With an accurate track forecast for Typhoon Nanmadol, the ability for the model to predict rainfall distribution is significantly improved. -
Appendix 8: Damages Caused by Natural Disasters
Building Disaster and Climate Resilient Cities in ASEAN Draft Finnal Report APPENDIX 8: DAMAGES CAUSED BY NATURAL DISASTERS A8.1 Flood & Typhoon Table A8.1.1 Record of Flood & Typhoon (Cambodia) Place Date Damage Cambodia Flood Aug 1999 The flash floods, triggered by torrential rains during the first week of August, caused significant damage in the provinces of Sihanoukville, Koh Kong and Kam Pot. As of 10 August, four people were killed, some 8,000 people were left homeless, and 200 meters of railroads were washed away. More than 12,000 hectares of rice paddies were flooded in Kam Pot province alone. Floods Nov 1999 Continued torrential rains during October and early November caused flash floods and affected five southern provinces: Takeo, Kandal, Kampong Speu, Phnom Penh Municipality and Pursat. The report indicates that the floods affected 21,334 families and around 9,900 ha of rice field. IFRC's situation report dated 9 November stated that 3,561 houses are damaged/destroyed. So far, there has been no report of casualties. Flood Aug 2000 The second floods has caused serious damages on provinces in the North, the East and the South, especially in Takeo Province. Three provinces along Mekong River (Stung Treng, Kratie and Kompong Cham) and Municipality of Phnom Penh have declared the state of emergency. 121,000 families have been affected, more than 170 people were killed, and some $10 million in rice crops has been destroyed. Immediate needs include food, shelter, and the repair or replacement of homes, household items, and sanitation facilities as water levels in the Delta continue to fall. -
Health Action in Crises PHILIPPINES FLOODS
Health Action in Crises PHILIPPINES FLOODS Situation 2 December 2004 - Tropical Depression "Winnie" has triggered massive floods in northern and central Philippines. Some 400 persons are reported dead, with many people still unaccounted for. An estimated 240,000 persons have been directly affected (government figures). The most affected provinces include Isabela (Region II); Bulacan, Nueva Ecija and Aurora (Region III); Quezon and Rizal (Region IV) and Camarines Sur (Region V). Efforts are focused on search and rescue activities. The procurement and distribution of relief items are also underway. The National Disaster Coordination Council (NDCC) is charged with heading the response, in conjunction with the Defense Department. The NDCC is supported by the UN in-country team. Possible needs in the health sector A comprehensive impact assessment has not yet been undertaken. However, it can be anticipated that the following issues may be of concern: ¾ Damage to health facilities and equipment, as well as disrupted medical supply systems. ¾ Outages in electricity endanger the cold chain. ¾ Relocation of people may result in an overburden of functional primary and referral health services. ¾ Floods and landslides could lead to the disruption of water distribution systems and the loss/contamination of water supplies. In flood situations, the lack of safe drinking water supplies and adequate sanitation, combined with population displacement, heightens the risk of outbreaks of water- and vector-borne diseases. ¾ Shortage of supplies and staff for mass casualty management could occur. WHO immediate actions WHO has mobilized US$ 20,000 to support the assessment of urgent health needs. Medical kits are on standby and are ready to be shipped should they be needed. -
Statistical Characteristics of the Response of Sea Surface Temperatures to Westward Typhoons in the South China Sea
remote sensing Article Statistical Characteristics of the Response of Sea Surface Temperatures to Westward Typhoons in the South China Sea Zhaoyue Ma 1, Yuanzhi Zhang 1,2,*, Renhao Wu 3 and Rong Na 4 1 School of Marine Science, Nanjing University of Information Science and Technology, Nanjing 210044, China; [email protected] 2 Institute of Asia-Pacific Studies, Faculty of Social Sciences, Chinese University of Hong Kong, Hong Kong 999777, China 3 School of Atmospheric Sciences, Sun Yat-Sen University and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519082, China; [email protected] 4 College of Oceanic and Atmospheric Sciences, Ocean University of China, Qingdao 266100, China; [email protected] * Correspondence: [email protected]; Tel.: +86-1888-885-3470 Abstract: The strong interaction between a typhoon and ocean air is one of the most important forms of typhoon and sea air interaction. In this paper, the daily mean sea surface temperature (SST) data of Advanced Microwave Scanning Radiometer for Earth Observation System (EOS) (AMSR-E) are used to analyze the reduction in SST caused by 30 westward typhoons from 1998 to 2018. The findings reveal that 20 typhoons exerted obvious SST cooling areas. Moreover, 97.5% of the cooling locations appeared near and on the right side of the path, while only one appeared on the left side of the path. The decrease in SST generally lasted 6–7 days. Over time, the cooling center continued to diffuse, and the SST gradually rose. The slope of the recovery curve was concentrated between 0.1 and 0.5. -
Tropical Cyclone Temperature Profiles and Cloud Macro-/Micro-Physical Properties Based on AIRS Data
atmosphere Article Tropical Cyclone Temperature Profiles and Cloud Macro-/Micro-Physical Properties Based on AIRS Data 1,2, 1, 3 3, 1, 1 Qiong Liu y, Hailin Wang y, Xiaoqin Lu , Bingke Zhao *, Yonghang Chen *, Wenze Jiang and Haijiang Zhou 1 1 College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China; [email protected] (Q.L.); [email protected] (H.W.); [email protected] (W.J.); [email protected] (H.Z.) 2 State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081, China 3 Shanghai Typhoon Institute, China Meteorological Administration, Shanghai 200030, China; [email protected] * Correspondence: [email protected] (B.Z.); [email protected] (Y.C.) The authors have the same contribution. y Received: 9 October 2020; Accepted: 29 October 2020; Published: 2 November 2020 Abstract: We used the observations from Atmospheric Infrared Sounder (AIRS) onboard Aqua over the northwest Pacific Ocean from 2006–2015 to study the relationships between (i) tropical cyclone (TC) temperature structure and intensity and (ii) cloud macro-/micro-physical properties and TC intensity. TC intensity had a positive correlation with warm-core strength (correlation coefficient of 0.8556). The warm-core strength increased gradually from 1 K for tropical depression (TD) to >15 K for super typhoon (Super TY). The vertical areas affected by the warm core expanded as TC intensity increased. The positive correlation between TC intensity and warm-core height was slightly weaker. The warm-core heights for TD, tropical storm (TS), and severe tropical storm (STS) were concentrated between 300 and 500 hPa, while those for typhoon (TY), severe typhoon (STY), and Super TY varied from 200 to 350 hPa. -
Remote Sensing of Typhoons Impact and Disaster Management Danling
Remote Sensing of Typhoons Impact and Disaster Management - A New Ecological Index for SST Cooling Response to Typhoon 唐丹玲 DanLing Tang 唐丹玲 South China Sea Institute of Oceanology Chinese Academy of Sciences合 http://lingzis.51.net/ [email protected] Marine Silk Road Guangzhou Climate Changes /Natural Hazards 沙尘暴 台风玛姬 印度洋海啸2004 California Noctiluca ? 2013 青岛浒苔 夜光藻赤潮 山东日照 阿拉伯海藻华 Distribution of typhoon (hurricane) 台风玛姬 ? 1 Typhoon impacts on marine ecosystem A New Ecological Index for SST Cooling 2 Response to Typhoon 3 Typhoon Disaster Management Remote Sensing Observations Marine Environment and ecology 中科院南海海洋研究所 唐丹玲 Typhoons impact 1 on Marine Ecosystems DanLing TANG B. Post-typhoon Chl-a B1. 2005 a HNI HNI Damrey, Sep 2005 b SCS A3. 22:36, Sep 25 China B2. 2002-2004 HNI SCS HNI A4. 11:26, Sep 26 China HNI Modis Chl-a (mg m-3) SCS 0.4 0.8 1.2 1.6 2.0 2.8 3.0 2.4 0 QuikScat Wind Vectors (m/s) Zheng and Tang, MEPS 2007 0 10 20 30 Offshore and nearshore chlorophyll increases induced by typhoon and typhoon rain. Offer shore Near shore Guangming Zheng and Danling Tang, 2007, Marine Ecology Progress Series, 333:61-74,2007 (SCI) TMI-AMSRE A B C DanLing TANG SST A B C (mg m-3) TRMM Rainfall (mm) Chl-a TMI-AMSRE SST ( C) Chl-a (mg m-3) TRMM Rainfall (mm) 25 26 27 28 29 30 0 0.4 0.8 1.2 1.6 2.03.0 2.4 0 60 120 180 240 25 26 30027 28 29 30 0 0.4 0.8 1.2 1.6 2.0 2.4 3.0 0 60 120 180 240 300 A1. -
Transition from an Eastern Pacific Upper-Level Mixed Rossby-Gravity
GEOPHYSICAL RESEARCH LETTERS, VOL. 34, L24801, doi:10.1029/2007GL031831, 2007 Click Here for Full Article Transition from an eastern Pacific upper-level mixed Rossby-gravity wave to a western Pacific tropical cyclone Xiaqiong Zhou1 and Bin Wang1 Received 28 August 2007; revised 1 November 2007; accepted 8 November 2007; published 18 December 2007. [1] The ancestor of unseasonal Typhoon Nanmadol (2004) [3] Upper tropospheric MRG waves were also identified over the western North Pacific is traced back to the Eastern over the central Pacific, but a consensus on the connection Pacific (near 120°W) as an upper tropospheric, counter- between the upper and lower tropospheric MRG waves have clockwise rotating mixed Rossby-gravity (MRG) wave. The not been reached. Randel [1992] suggested that there is no temporal and spatial evolution from an equatorial trapped close connection between the upper and lower MRG wave MRG-wave-type disturbance to an off-equatorial tropical branches. Yanai et al. [1968] have shown that the lower depression is documented by utilizing NOGAPS (Navy’s tropospheric MRG waves feed the lower stratospheric Operational Global Atmospheric Prediction System) MRG by upward-energy-transport. Dunkerton and Baldwin analysis data. It is found that the MRG wave moved away [1995] found significant correlation to 200 mb MRG waves a from the equator after a dramatic reduction in its zonal few days prior to the arrival of waves in the lower troposphere. dimension and downward development and amplification in [4] Despite the different structure and preferred regions, the lower troposphere. These dramatic changes in MRG the MRG-type and TD-type disturbances have some dy- wave properties are attributed to the modulation of the namical connections. -
Typhoon Effects on the South China Sea Wave Characteristics During Winter Monsoon
Calhoun: The NPS Institutional Archive Theses and Dissertations Thesis Collection 2006-03 Typhoon effects on the South China Sea wave characteristics during winter monsoon Cheng, Kuo-Feng Monterey, California. Naval Postgraduate School http://hdl.handle.net/10945/2885 NAVAL POSTGRADUATE SCHOOL MONTEREY, CALIFORNIA THESIS TYPHOON EFFECTS ON THE SOUTH CHINA SEA WAVE CHARACTERISTICS DURING WINTER MONSOON by CHENG, Kuo-Feng March 2006 Thesis Advisor: Peter C. Chu Second Reader: Timour Radko Approved for public release; distribution is unlimited. THIS PAGE INTENTIONALLY LEFT BLANK REPORT DOCUMENTATION PAGE Form Approved OMB No. 0704-0188 Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instruction, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302, and to the Office of Management and Budget, Paperwork Reduction Project (0704-0188) Washington DC 20503. 1. AGENCY USE ONLY (Leave blank) 2. REPORT DATE 3. REPORT TYPE AND DATES COVERED March 2006 Master’s Thesis 4. TITLE AND SUBTITLE: Typhoon Effects on the South China Sea Wave 5. FUNDING NUMBERS Characteristics during Winter Monsoon 6. AUTHOR(S) Kuo-Feng Cheng 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) 8. PERFORMING Naval Postgraduate School ORGANIZATION REPORT Monterey, CA 93943-5000 NUMBER 9. SPONSORING /MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. -
Typhoon Track Prediction Using Satellite Images in a Generative Adversarial Network Mario R ¨Uttgers1, Sangseung Lee1, and Donghyun You1,*
Typhoon track prediction using satellite images in a Generative Adversarial Network Mario R ¨uttgers1, Sangseung Lee1, and Donghyun You1,* 1Pohang University of Science and Technology, Mechanical Engineering, Pohang, 37673, South-Korea *[email protected] ABSTRACT Tracks of typhoons are predicted using satellite images as input for a Generative Adversarial Network (GAN). The satellite images have time gaps of 6 hours and are marked with a red square at the location of the typhoon center. The GAN uses images from the past to generate an image one time step ahead. The generated image shows the future location of the typhoon center, as well as the future cloud structures. The errors between predicted and real typhoon centers are measured quantitatively in kilometers. 42:4% of all typhoon center predictions have absolute errors of less than 80 km, 32:1% lie within a range of 80 - 120 km and the remaining 25:5% have accuracies above 120 km. The relative error sets the above mentioned absolute error in relation to the distance that has been traveled by a typhoon over the past 6 hours. High relative errors are found in three types of situations, when a typhoon moves on the open sea far away from land, when a typhoon changes its course suddenly and when a typhoon is about to hit the mainland. The cloud structure prediction is evaluated qualitatively. It is shown that the GAN is able to predict trends in cloud motion. In order to improve both, the typhoon center and cloud motion prediction, the present study suggests to add information about the sea surface temperature, surface pressure and velocity fields to the input data. -
Appendix 3 Selection of Candidate Cities for Demonstration Project
Building Disaster and Climate Resilient Cities in ASEAN Final Report APPENDIX 3 SELECTION OF CANDIDATE CITIES FOR DEMONSTRATION PROJECT Table A3-1 Long List Cities (No.1-No.62: “abc” city name order) Source: JICA Project Team NIPPON KOEI CO.,LTD. PAC ET C ORP. EIGHT-JAPAN ENGINEERING CONSULTANTS INC. A3-1 Building Disaster and Climate Resilient Cities in ASEAN Final Report Table A3-2 Long List Cities (No.63-No.124: “abc” city name order) Source: JICA Project Team NIPPON KOEI CO.,LTD. PAC ET C ORP. EIGHT-JAPAN ENGINEERING CONSULTANTS INC. A3-2 Building Disaster and Climate Resilient Cities in ASEAN Final Report Table A3-3 Long List Cities (No.125-No.186: “abc” city name order) Source: JICA Project Team NIPPON KOEI CO.,LTD. PAC ET C ORP. EIGHT-JAPAN ENGINEERING CONSULTANTS INC. A3-3 Building Disaster and Climate Resilient Cities in ASEAN Final Report Table A3-4 Long List Cities (No.187-No.248: “abc” city name order) Source: JICA Project Team NIPPON KOEI CO.,LTD. PAC ET C ORP. EIGHT-JAPAN ENGINEERING CONSULTANTS INC. A3-4 Building Disaster and Climate Resilient Cities in ASEAN Final Report Table A3-5 Long List Cities (No.249-No.310: “abc” city name order) Source: JICA Project Team NIPPON KOEI CO.,LTD. PAC ET C ORP. EIGHT-JAPAN ENGINEERING CONSULTANTS INC. A3-5 Building Disaster and Climate Resilient Cities in ASEAN Final Report Table A3-6 Long List Cities (No.311-No.372: “abc” city name order) Source: JICA Project Team NIPPON KOEI CO.,LTD. PAC ET C ORP. -
Research Article Numerical Analysis on the Effects of Binary Interaction Between Typhoons Tembin and Bolaven in 2012
Hindawi Advances in Meteorology Volume 2019, Article ID 7529263, 16 pages https://doi.org/10.1155/2019/7529263 Research Article Numerical Analysis on the Effects of Binary Interaction between Typhoons Tembin and Bolaven in 2012 Zhipeng Xian and Keyi Chen School of Atmospheric Sciences, Chengdu University of Information Technology, 610225 Chengdu, China Correspondence should be addressed to Keyi Chen; [email protected] Received 7 November 2018; Revised 14 February 2019; Accepted 26 February 2019; Published 3 April 2019 Academic Editor: Mario M. Miglietta Copyright © 2019 Zhipeng Xian and Keyi Chen. ,is is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. ,e binary interaction is one of the most challenging factors to improve the forecast accuracy of multiple tropical cyclones (TCs) in close vicinity. ,e effect of binary interaction usually results in anomalous track and variable intensity of TCs. A typical interaction type, one-way influence mode, has been investigated by many studies which mainly focused on the anomalous track and record- breaking precipitation, such as typhoons Morakot and Goni. In this paper, a typical case of this type, typhoons Tembin and Bolaven, occurred in the western North Pacific in August 2012, was selected to study how one typhoon impacts the track and intensity of the other one. ,e vortex of Tembin or Bolaven and the monsoon circulation were removed by a TC bogus scheme and a low-pass Lanczos filter, respectively, to carry out the numerical experiments. ,e results show that the presence of monsoon made the binary interaction more complex by affecting the tracks and the translation speeds of the TCs. -
In Page.Indd
Message from Chairman > After a long term service as a professorship at university, I was appointed as the Minister of National Science Council (NSC) in 2000. Before I came to the National Applied Research Laboratories (NARL) in 2004, I had served as the Chairman of Industrial Technology Research Institute (ITRI) since 2001. Therefore, I am quite familiar with the missions and operations of national laboratories originally established by NSC. I am glad to see that the national laboratories have been branched out from NSC and have been consolidated into NARL of a non-profit organization in 2003. Establishment of NARL implies that national laboratories are reset at a new staring point of challenge. NARL must have a new vision to enhance future science and technology development in Taiwan. The primary mission of national laboratories is to provide the large-scale experimental platform and facility to support the academic researches. Functionally speaking, NARL is a service-oriented institution. After reforming into a non-profit organization, NARL should not only provide high- quality services to academia, but should enhance its in-house R&D capability as well. With providing high-quality service and enhancing core R&D competence, NARL will reconstitute its contribution beneficial from a non-profit organization. In order to enhance NARL’s R&D capacity, each laboratory should sketch its short-term and long-term technical development roadmap based upon their specialties. The implementation plan should include: selection of advanced research topics, team-up of research personnel, allocation of budget, and establishment of thorough review mecha- nism. Additionally, NARL will also enhance the collaboration with other research institutions for building up the core competence.