Published by: WMO ; 2012
Format: Digital (Free)
Published by: OMM ; 2012
Format: Digital (Free)
Published by: OMM ; 2012
Language(s): Spanish; Other Languages: English
Format: Digital (Free)
Published by: UNEP ; 2012
Format: Digital (Free)
ISBN (or other code): 978-92-807-3263-4Mejorar la predicción de los ciclones es uno de los objetivos de la investigación meteorológica internacional. Este caso práctico de un tifón de 2009 que estuvo a punto de impactar sobre Filipinas ofrece una perspectiva del alcance de la predicción por conjuntos.
in Boletín > Vol. 59(2) (2010) . - p.79-81
Mejorar la predicción de los ciclones es uno de los objetivos de la investigación meteorológica internacional. Este caso práctico de un tifón de 2009 que estuvo a punto de impactar sobre Filipinas ofrece una perspectiva del alcance de la predicción por conjuntos.
Language(s): Spanish; Other Languages: English, French, Russian
Format: Digital (Free), Hard copy[article]Since November 1985, WMO has organized a series of quadrennial International Workshops on Tropical Cyclones (IWTCs), the latest of which took place in La Reunion (France) from 10 to 15 November 2010. It is noteworthy that this seventh WMO International Workshop on Tropical Cyclones (IWTC-VII) has been the first held in WMO Regional Association I (Africa). The Workshop primary objectives were to review progress in tropical cyclone research and operational practices since IWTC-VI and to contribute in identifying future research and operational priorities. The six-day meeting set the scene for ex ...
PermalinkNARRI, 2011This study intends to identify the baseline reference points to depict the existing scenario of the community people in light of all the indicators set forth in the sixth DIPECHO Action Plan for South Asia in Bangladesh undertaken by NARRI Consortium. It clusters three zones based on prominent hazards and highlights significant differences in the knowledge and practice of preparedness and mitigation measures, awareness and responses to warning signals in cyclone, flood-prone and earthquake prone areas. The study presents a set of recommendations in order to strengthen the programme and project ...
PermalinkWorld Meteorological Organization (WMO) ; Economic and Social Commission for Asia and the Pacific (ESCAP) - WMO, 2011
PermalinkThis paper constructs an integrated assessment model of tropical cyclones in order to quantify the impact that climate change may have on tropical cyclone damages in countries around the world. The paper relies on a tropical cyclone generator in each ocean and several climate models to predict tropical cyclones with and without climate change. A damage model is constructed to compute the resulting damage when a cyclone strikes each country. Economic development is expected to double global tropical cyclone damages because more will be in harm's way. Climate change is expected to double global ...
PermalinkJournal of the Meteorological Society of Japan, Vol. 88. No 4. Yamasaki Masanori - Meteorological Society of Japan, 2010A numerical model in which the effects of cumulus convection are incorporated as the subgrid-scale and mesoscale organized convection is resolved by the grid (mesoscale-convection-resolving model, MCRM) was developed in the 1980s with an intention of improving the parameterization schemes for moist convection, which had been used since the 1960s. As in many numerical models with parameterization in the 1980s, hydrostatic equilibrium was assumed. The present paper describes a nonhydrostatic version of the MCRM, with some modifications of the subgrid-scale effect formulation used in the hydrosta ...
PermalinkAtmospheric and Oceanic Science Letters, Volume 3 Number 6. Tian Hua; Li Chong-Yin - Science Press, 2010The association of typhoon tracks over the western Pacific with the low-frequency wind-field pattern of atmospheric intraseasonal (30-60 days) oscillation at 850 hPa is further studied by using observational data analyses. Comparative analyses of the composite wind fields at 850 hPa, contrasting the atmospheric intraseasonal oscillation (ISO) with the original circulation, show that the typhoon tracks are closely related to the wind pattern of the ISO but are not obviously related to the original wind fields. Case studies of two typhoons in 2006 also show that the low-frequency wind-field patt ...
PermalinkAtmospheric and Oceanic Science Letters, Volume 3 Number 6. Tan Xiao-Wei; Wang Dong-Liang - Science Press, 2010Conditional nonlinear optimal perturbation (CNOP) obtained by the ensemble-based calculation method is employed to find possible sensitive areas for improving 48-h or more than 48-h tropical cyclone (TC) track predictions in several cases affecting China in 2007. These sensitive areas are examined by observing system simulation experiments (OSSEs). Results show that these sensitive areas improve TC track predictions for 48 h or more to different extents. Further analysis is performed to determine the distribution characteristics of sensitive areas in these cases. Results show that areas south ...
Permalinkis an issue of Journal of the Meteorological Society of Japan. Meteorological Society of Japan, 2010Contains:
- Mechanisms of Temporary Improvement and Rapid Changes in Visibility in Fogs
- Changes in Potential Intensity of Tropical Cyclones Approaching Japan due to Anthropogenic Warming in Sea Surface and Upper-Air Temperatures
- Convective Boundary Layer above a Subtropical Island Observed by C-band Radar and Interpretation using a Cloud Resolving Model
- Role of Large-Scale Circulation in Triggering Foehns in the Hokuriku District of Japan during Midsummer
- Diurnal Variations in Lower-Tropospheric Wind over Japan ...
PermalinkJournal of the Meteorological Society of Japan, Vol.88 No.5. Ma Lei-Ming; Tan Zhe-Min - Meteorological Society of Japan, 2010A new scheme, termed Vortex Initialization with the Assimilation of Retrieved Variables (VIRV), is presented to improve the initialization of regional numerical model for Tropical Cyclone (TC) prediction. In this scheme, the horizontal winds in Planetary Boundary Layer (PBL) and the sea level pressure (SLP), retrieved from Quick Scatterometer (QuikSCAT) data obtained using a modified University of Washington Planetary Boundary Layer (UWPBL) model, are assimilated with a cycled three-dimensional variational (3DVAR) technique to produce the initialized analysis. The procedures of retrieval are i ...
PermalinkThe sensitive regions of conditional nonlinear optimal perturbations (CNOPs) and the first singular vector (FSV) for a northwest Pacific typhoon case are reported in this paper. A large number of probes have been designed in the above regions and the ensemble transform Kalman filter (ETKF) techniques are utilized to examine which approach can locate more appropriate regions for typhoon adaptive observations. The results show that, in general, the majority of the probes in the sensitive regions of CNOPs can reduce more forecast error variance than the probes in the sensitive regions of FSV. Thi ...
Permalinkis an issue of Atmospheric and Oceanic Science Letters. Science Press, 2010Contains:
- Analysis of a Beijing Heavy Snowfall Related to an Inverted Trough in November 2009
LI Jin,ZHAO Si-Xiong,YU Fei
- Comparative Studies of Different Mesoscale Convection Parameterization Schemes in the Simulation of Mei-Yu Front Heavy Rain
PING Fan,LUO Zhe-Xian
- An Improved Atmospheric Vector Radiative Transfer Model Incorporating Rough Ocean Boundaries
FAN Xue-Hua,CHEN Hong-Bin,HAN Zhi-Gang,LIN Long-Fu
- A Case Study of the Impacts of Dust Aerosols on Surface Atmospheric Variables and Energy Budgets in ...
PermalinkTropical cyclones are the deadliest tropical weather systems. This chapter describes their seasonal and geographic variability and controls, decadal cycles, and history of naming conventions. Tropical cyclogenesis is explored in depth and the core and balance solutions for regions of the cyclone are examined. Intensity is considered in terms of inner-core dynamics, large-scale environmental controls, limits on potential intensity, satellite interpretation techniques, and classification by wind speed. Factors that influence motion are investigated. Extratropical transition is described in terms ...
PermalinkDesigned primarily for middle school students and funded by FEMA and the NWS, this module creates a scenario to frame learning activities that focus on hurricane science and safety. Versions are also available for hearing, motor, and visually impaired students, as well as Spanish-speaking students. Over the course of seven days, Hurricane Erin forms in the Atlantic Ocean, crosses the Florida peninsula, and then makes another landfall at Fort Walton Beach. During these days, the learner is introduced to many basic concepts of atmospheric science, climate, and geography, while also learning some ...
PermalinkThis module provides an introduction to the northwest Pacific for weather forecasters. It touches on major aspects of the geography, oceanography, and climatology. Geography looks at plate tectonics, topography, and human population. Oceanography examines ocean currents, coastal tidal ranges, and sea ice distribution. Climatology briefly discusses jets streams, distribution of synoptic features, storm tracks of tropical and extratropical cyclones, the fronts, and sensible weather associated with the Northeast and Southwest Monsoons.
PermalinkContains: Inter-annual Variation of Frequency of Cyclonic Disturbances Landfalling over WMO/ESCAP Panel Member Countries; Toward Improved Projection of the Future Tropical Cyclone Changes; An Assessment of Climate Change Impact on Cyclone Frequency and Design Wave Height in the Oman Sea; Long-Range Prediction of Tropical Cyclones for Bangladesh; On Developing a Tropical Cyclone Archive and Climatology for the South Indian and South Pacific Oceans; International Best Track Archive for Climate Stewardship (IBTrACS): Synthesizing Global Tropical Cyclone Best Track Data; Simulation of Track and In ...
PermalinkSevere calamities and fatalities have arisen from landfalling tropical cyclones (TC) around the world in recent years, such as Morakot (August 2009) in western North Pacific, Nargis (May 2008) in Bay of Bengal, Gonu (June 2007) in North Arabian Sea, Bilis (July 2006) in western North Pacific, Katrina (August 2005) in Gulf of Mexico, and Catarina (March 2004) in South Atlantic etc. Transferring the advancements from the research community to operational forecast centers in NMHSs would be helpful for improving the landfalling tropical cyclone (LTC) forecasts and for mitigation of high-impact tro ...