Relevant bibliographies by topics / Cyclones Vietnam

Academic literature on the topic 'Cyclones Vietnam'

Author: Grafiati
Published: 10 December 2022
Last updated: 29 January 2023

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Journal articles on the topic "Cyclones Vietnam"

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Đức, Lê, and Kiều Thị Xin. "Phát triển mô hình nước nông ba lớp và áp dụng vào dự báo chuyển động bão trên vùng biển Việt Nam." VIETNAM JOURNAL OF EARTH SCIENCES 25, no. 3 (June 13, 2003): 229–35. http://dx.doi.org/10.15625/0866-7187/25/3/11731.

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Thanh, Vo Quoc, Nguyen Hieu Trung, and Vo Thi Phuong Linh. "Temporal analysis for multi-hazard risk assessment of rice cultivation in coastal areas: a case study of Soc Trang, Vietnam." E3S Web of Conferences 347 (2022): 05001. http://dx.doi.org/10.1051/e3sconf/202234705001.

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Rice is an important human crop and rice cultivation is threatened due to natural disasters, leading to negative effects on national and global food security. Natural disasters, such as tropical cyclones and saline intrusion, have dramatic influences in coastal regions. To investigate possible impacts of these disasters on rice cultivation, it needs an efficient tool to assess potential disaster impacts and a risk index is highly applicable. Therefore, this study aims at establishing a risk assessment of rice production in coastal areas under the effects of tropical cyclones and saline intrusion. We adopted the risk definition introduced by [1] in which risk is a function of hazard, exposure and, vulnerability. Multiple hazards of tropical cyclones and saline intrusion were indicated by their frequency and severity at some critical levels of 25%, 50% and, >50% rice yield reduction. Each hazard was weighted by its damage to rice yield. The exposure and vulnerability of rice crops are evaluated at different growing phases. The tropical cyclone hazard index was ranked high and very high in the wet season while the salinity hazard index was ranked very high in the dry season. Due to the combined effects of tropical cyclones and salinity, rice crop is highly susceptible during the reproduction phase and at the panicle initiation stage particularly. Based on the cropping calendar of My Xuyen, the period of October-November was the very high vulnerability period since it had the largest rice cultivable area and rice crops were at the reproduction phase. This result shows that rice crops are at high risk in October and November. Noticeably, saline intrusion reaches the highest level in April and May, but no risk is at this period because of no rice crop cultivated. This can reflect a measure to reduce risk by adjusting the cropping calendar.
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Chen, Tsing-Chang, Jenq-Dar Tsay, Ming-Cheng Yen, and Esperanza O. Cayanan. "Formation of the Philippine Twin Tropical Cyclones during the 2008 Summer Monsoon Onset." Weather and Forecasting 25, no. 5 (October 1, 2010): 1317–41. http://dx.doi.org/10.1175/2010waf2222395.1.

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Abstract Stretched from Indochina, across the South China Sea, to the Philippine Sea, a monsoon cyclonic shear flow was formed by easterlies of the cold surge-like flow in the north and monsoon westerlies in the south before the onset of the tropical Southeast Asian monsoon on 12 May 2008. On this date, two named tropical cyclones (Halong and Matmo) evolved with a 12-h lag from a closed vortex adjacent to the coast of central Vietnam and another closed vortex near Palawan Island (Philippines) within this shear flow. These two cyclones, named the twin Philippine tropical cyclones, moved almost on the same track, along the anomalous shear line (departure from the climatological one) across the Philippines, and turned northeastward to the ocean south of Japan. It was revealed from synoptic analysis that the cold surge-like flow was coupled with the midlatitude eastward-propagating short wave in northeast Asia, and part of the monsoon westerlies were fed by the cross-equatorial flow, the downstream flow of easterlies around the northern rim of the Southern Hemisphere subtropical high. The environment favorable for the formation of the twin cyclones was developed from the tropics–midlatitude interaction between synoptic systems in these two latitudinal zones. Formations of these cyclones were a result of drastic spinups of the two closed vortices (within the monsoon shear flow) following the surge of monsoon westerlies, which coincided with those of easterlies of the cold surge-like flow, and the cross-equatorial flow originating from easterlies between the Southern Hemisphere subtropical high and the Southern Hemisphere shear flow.
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Vu, Tam Bang, Eric Iksoon Im, Karla Hayashi, and Ryan Torio. "Cyclones, Deforestation, and Production of Food Crops in Vietnam." Economics of Disasters and Climate Change 1, no. 3 (August 18, 2017): 245–62. http://dx.doi.org/10.1007/s41885-017-0010-5.

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Yurchak, Boris S. "Intensity Measurements of a Landfalling Tropical Cyclone Using Conventional Coastal Weather Radar." Meteorology 1, no. 2 (March 23, 2022): 113–26. http://dx.doi.org/10.3390/meteorology1020007.

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Tropical cyclone (TC) intensity observations considerably improve forecast models. They are particularly used to continuously measure TC intensity for landfalling cyclones to improve their forecast. For example, TC Irving, which operated in the Gulf of Tonkin, South China Sea, on 23–24 July 1989, was observed by a conventional weather radar installed at the Phu Lien Observatory in North Vietnam. The maximum wind speed was calculated by the hyperbolic-logarithmic approximation (HLS-approximation) of spiral cloud-rain bands (SCRBs) of recorded TC radar images. The data spanned about 15 h. Ground-based estimates of the cyclone intensity were obtained from pressure measurements at two coastal weather stations. A comparison of these estimates with the HLS wind resulting from the HLS approximation of SCRBs showed satisfactory synchronization. In particular, radar and meteorological data indicated cyclone intensification near landfall and rapid cyclone intensification after landfall. Both intensifications were accompanied by polygonal eye shapes. This study demonstrates the feasibility of using the HLS-approximation technique for retrieving TC intensity variation from conventional weather radar data.
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Xiao, Fuan, Zhifeng Wu, Yushan Lyu, and Yicen Zhang. "Abnormal Strong Upwelling off the Coast of Southeast Vietnam in the Late Summer of 2016: A Comparison with the Case in 1998." Atmosphere 11, no. 9 (September 3, 2020): 940. http://dx.doi.org/10.3390/atmos11090940.

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The traditional view holds that a weakened upwelling has often been observed off the coast of southeast Vietnam during the post-El Niño summer. This study investigated a strong upwelling and concurrent phytoplankton bloom off the coast of southeast Vietnam in August 2016 by comparing it with another case in 1998. Analyses of the upwelling structure and formation mechanisms indicated that the abnormal strong upwelling in August 2016 was attributable to strong wind-driven offshore Ekman transport and Ekman pumping, which were caused by the accompanying southwesterly anomalies south of the anomalous cyclone (AC) over the western North Pacific (WNP), and vice versa in August 1998. This anomalous southwesterly wind associated with the AC over the WNP could not be explained by La Niña, the negative Indian ocean dipole, or the positive Pacific meridional mode events. Further analyses showed that the Madden–Julian oscillation (MJO)-induced westerly winds could have contributed more than 75% of the original zonal winds. Nine tropical cyclones generated over the WNP were favorable for excessive precipitation. The opposite configurations of precipitation patterns over the WNP and the Maritime Continent could have further strengthened the AC via a Gill response.
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Chen, Tsing-Chang, Ming-Cheng Yen, Jenq-Dar Tsay, Jordan Alpert, and Nguyen Thi Tan Thanh. "Forecast Advisory for the Late Fall Heavy Rainfall/Flood Event in Central Vietnam Developed from Diagnostic Analysis." Weather and Forecasting 27, no. 5 (May 8, 2012): 1155–77. http://dx.doi.org/10.1175/waf-d-11-00104.1.

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Abstract The formations of heavy rainfall/flood (HRF) events in Vietnam are studied from diagnostic analyses of 31 events during the period 1979–2009. HRF events develop from the cold surge vortices formed around the Philippines. These vortices’ speed, size, and rainfall, which evolve into HRF events, are enhanced distinguishably from non-HRF vortices, as they reach Vietnam. The HRF cyclone, the North Pacific anticyclone, and the northwestern Pacific explosive cyclone simultaneously reach their maximum intensities when the HRF event occurs. An HRF cyclone attains its maximum intensity by the in-phase constructive interference of three monsoon (30–60, 12–24, and 5 days) modes identified by the spectral analysis of zonal winds. The rainfall center of an HRF event is formed and maintained by the in-phase constructive interference of rainfall and convergence of water vapor flux anomalies, respectively, from three monsoon modes. Forecast times of regional models are dependent and constrained on the scale of the limited domain. For 5-day forecasts, a global or at least a hemispheric model is necessary. Using the salient features described above, a 5-day forecast advisory is introduced to supplement forecasts of HRF events made by the global model. Non-HRF vortices are filtered by threshold values for the deepening rate of explosive cyclones and basic characteristics of the HRF events predicted by the global model. A necessary condition for an HRF event is the in-phase superposition of the three monsoon modes. One-week forecasts for 12 HRF events issued by the NCEP Global Forecast System are tested. Results demonstrate the feasibility of the forecast advisory to predict the occurrence dates of HRF events.
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Nhu, Dang Hong, Nguyen Xuan Anh, Nguyen Binh Phong, Nguyen Dang Quang, and Hiep Van Nguyen. "The role of orographic effects on occurrence of the heavy rainfall event over Central Vietnam in November 1999." Tạp chí Khoa học và Công nghệ biển 17, no. 4B (December 15, 2017): 31–36. http://dx.doi.org/10.15625/1859-3097/17/4b/12989.

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In this study, the WRF model is used to investigate the role of Central Vietnam terrain on occurrence of the heavy rainfall event in November 1999 over Central Vietnam. Two model experiments with and without terrain were performed to examine the orographic blocking effects during the event. In the terrain experiment, the results from a three-day simulation show that the model reasonably well captures northeast monsoon circulation, tropical cyclones and the occurrence of heavy rainfall in Central Vietnam. The topography causes a high pressure anomaly intensifying northeast monsoon. When the terrain is removed, the three-day accumulated rainfall decreases approximately 75% in comparison with that in the terrain experiment. The terrain blocking and lifting effects in strong wind and moisture laden conditions combined with convergence circulation over open ocean are the main factors for occurrence of the heavy rainfall event.
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Nguyen, Duc Ngu. "Effects of ENSO on cold-air activities and tropical cyclones in Vietnam." Vietnam Journal of Science, Technology and Engineering 59, no. 2 (June 21, 2017): 88–91. http://dx.doi.org/10.31276/vjste.59(2).88.

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Gao, Si, Zhifan Chen, and Wei Zhang. "Impacts of Tropical North Atlantic SST on Western North Pacific Landfalling Tropical Cyclones." Journal of Climate 31, no. 2 (January 2018): 853–62. http://dx.doi.org/10.1175/jcli-d-17-0325.1.

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This study examines the impacts of tropical North Atlantic (TNA) sea surface temperature anomaly (SSTA) on western North Pacific (WNP) landfalling tropical cyclones (TCs). The authors find that TNA SSTA has significant negative correlations with the frequency of TCs making landfall in China, Vietnam, the Korean Peninsula and Japan, and the entirety of East Asia. TNA SSTA influences the frequency of TC landfalls in these regions by regulating TC genesis location and frequency associated with modulated environmental conditions. During cold TNA SST years, larger low-level relative vorticity and weaker vertical wind shear lead to more TC formations over the South China Sea (SCS) and western Philippine Sea (WPS), and larger low-level relative vorticity, higher midlevel relative humidity, and weaker vertical wind shear result in more TC formations over the eastern part of WNP (EWNP). More TCs forming over different regions are important for more TC landfalls in Vietnam (mainly forming over the SCS and WPS), south China (predominantly forming over the SCS), Taiwan (mostly forming over the WPS), and the Korean Peninsula and Japan (forming over the WPS and EWNP). Tracks of these landfalling TCs basically follow the mean steering flow in spite of different directions of steering flow anomalies in the vicinity. The modulation of large-scale environments by TNA SSTA may be through two possible pathways proposed in previous studies: the Indian Ocean relaying effect and the subtropical eastern Pacific relaying effect. The results of this study suggest that TNA SSTA is a potential predictor for the frequency of TCs making landfall in China, Vietnam, the Korean Peninsula and Japan, and the entirety of East Asia.
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Dissertations / Theses on the topic "Cyclones Vietnam"

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Chow, Chun Hoe, and 曹俊和. "Mesoscale Cyclonic Eddies Associated with the South China Sea Circulation–Case Study : Dongsha Cyclonic Eddy and Vietnam Cyclonic Eddy." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/46748248117254794754.

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博士
國立臺灣海洋大學
海洋環境資訊學系
97
The repeated movements of two mesoscale cyclonic eddies in the South China Sea (SCS) were observed annually from the sea level anomaly (SLA) contour maps during 1993–2006. One is the Dongsha Cyclonic Eddy (DCE) in the northern SCS (NSCS), and the other is the Vietnam Cyclonic Eddy (VCE) in the southern SCS (SSCS). By defining some criteria, these eddies were identified and tracked from the SLA maps for their life histories. The time series of eddy size, propagation speeds, sea level height difference (DIF) from eddy margin to eddy center, angular velocities and vorticities were analyzed. The size of both eddies is proportional to their DIF, but inversely proportional to their vorticities which are about 3 times their angular velocities. The DCE grew and spun with a mean size and vorticity of about 26000 km2 and 5.5×10-6 s-1, respectively. The VCE was about 2 times the DCE in size (52000 km2) and in vorticity (8.6×10-6 s-1). The DCE appeared 1–3 times a year. Roughly 70% of the DCEs were formed during winter to spring. With a typical tangential speed of about 20 cm/s, the DCE moved southwestward with a speed of about 8 km/day along the continental slope from Dongsha to Hainan. The DCE was likely generated by the high SST gradient west of the Luzon Strait or southwest of Dongsha. About 60 % of the high SST gradients were caused by the Kuroshio intrusion through the Luzon Strait. The DCE lifetime was highly related to the magnitude of the SST gradient. After lasting for 3 months, the DCE diminished south of Hainan due to the trap of the underwater bay extended away from the continental slope. A unique DCE was identified in the summer of 2000 and lasted for over 4 months. This DCE, whose birth was associated with the typhoon Kai-Tak, was characterized by a core with cold sea surface temperature and high chlorophyll-a concentration. In the SSCS, the VCE appeared once a year and usually (90%) started during summer to fall. The VCE could be formed near the Vietnam coast or far away from the coast. At the north of the offshore jet extending from the coast, the VCE propagated westward to the coast with a speed of slower than 20 km/day, or stagnated around if it was formed near the coast. Then, the high positive wind stress curl near the coast might strengthen the VCE. In the northeast monsoon, the VCE propagated about 40 km/day southward along the continental slope associated with the cold current coming from the NSCS. Finally, the VCE disappeared at the southwest corner of the SCS basin due to the bottom topography. Its lifetime was 5 months on average and could be longer than 6 months in the La Nina years when the positive wind stress curl in the vicinity of the VCE was high.
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Books on the topic "Cyclones Vietnam"

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Cyclops in the jungle: A one-eyed LRP in Vietnam. Mechanicsburg, PA: Stackpole Books, 2008.

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Walker, Staff Sergeant. Cyclops in the Jungle: A One-Eyed Lrp in Vietnam. Stackpole Books, 2010.

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Book chapters on the topic "Cyclones Vietnam"

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Duong, Trong Hai, Duc Cuong Nguyen, Sy Dung Nguyen, and Minh Hien Hoang. "An Adaptive Neuro-Fuzzy Inference System for Seasonal Forecasting of Tropical Cyclones Making Landfall along the Vietnam Coast." In Advanced Computational Methods for Knowledge Engineering, 225–36. Heidelberg: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-00293-4_17.

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Pham, N. T. T., and H. H. Vu. "Characteristics of Tropical Cyclone Precipitating System Along Central Coastal Region of Vietnam by TRMM and GSMAP Data." In APAC 2019, 87–91. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-0291-0_13.

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Esteban, Miguel, Nguyen Danh Thao, Hiroshi Takagi, and Tomoya Shibayama. "Increase in Port Downtime and Damage in Vietnam Due To a Potential Increase in Tropical Cyclone Intensity." In Climate Change and the Sustainable Use of Water Resources, 101–25. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-22266-5_7.

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Takagi, Hiroshi, Nguyen Danh Thao, and Miguel Esteban. "Tropical Cyclones and Storm Surges in Southern Vietnam." In Coastal Disasters and Climate Change in Vietnam, 3–16. Elsevier, 2014. http://dx.doi.org/10.1016/b978-0-12-800007-6.00001-0.

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Esteban, Miguel, Hiroshi Takagi, and Nguyen Danh Thao. "Tropical Cyclone Damage to Coastal Defenses." In Coastal Disasters and Climate Change in Vietnam, 233–55. Elsevier, 2014. http://dx.doi.org/10.1016/b978-0-12-800007-6.00011-3.

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"An analysis of the Paris Agreement: commitments versus performances in Thailand and Vietnam." In The economics of tropical cyclone adaptation, 331–44. Edward Elgar Publishing, 2022. http://dx.doi.org/10.4337/9781800880740.00024.

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Conference papers on the topic "Cyclones Vietnam"

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Duc, Tran Quang, Pham Thanh Ha, Vu The Anh, Kieu Quoc Chanh, and Phan Van Tan. "TROPICAL CYCLONE ACTIVITY OVER VIETNAM EAST SEA: CLIMATIC SHIFT AND ITS ASSOCIATED FACTORS." In NGHIÊN CỨU CƠ BẢN TRONG LĨNH VỰC KHOA HỌC TRÁI ĐẤT VÀ MÔI TRƯỜNG. Publishing House for Science and Technology, 2019. http://dx.doi.org/10.15625/vap.2019.000141.

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