The Experts below are selected from a list of 4800 Experts worldwide ranked by ideXlab platform
G. W. K. Moore - One of the best experts on this subject based on the ideXlab platform.
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Lake-Effect Snowstorms over Southern Ontario, Canada, and Their Associated Synoptic-Scale Environment
Monthly Weather Review, 2004Co-Authors: A. Q. Liu, G. W. K. MooreAbstract:Lake-effect Snowstorms are an important source of severe winter weather over the Great Lakes region and are often triggered by the passage of synoptic-scale low pressure systems. In this paper, a climatology of lakeeffect Snowstorms over southern Ontario, Canada, for the period 1992‐99 is developed. The distinguishing characteristics of the synoptic-scale environment associated with intense lake-effect Snowstorms in the region are identified through the study of individual events and through composite analysis. In particular, it is found that a low pressure and a cold-temperature anomaly situated over Hudson Bay, north of the Great Lakes, is a favorable environment for the development of intense lake-effect Snowstorms over southern Ontario. It is also found that the track of the low pressure system can have a significant impact on the development or lack thereof of lake-effect Snowstorms over southern Ontario. It is found that the low pressure systems that trigger intense lake-effect Snowstorms tend to have an anomalous northeastward track as compared to the eastward track of most low pressure systems that transit the region.
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Lake-Effect Snowstorms over Southern Ontario, Canada, and Their Associated Synoptic-Scale Environment
Monthly Weather Review, 2004Co-Authors: A. Q. Liu, G. W. K. MooreAbstract:Abstract Lake-effect Snowstorms are an important source of severe winter weather over the Great Lakes region and are often triggered by the passage of synoptic-scale low pressure systems. In this paper, a climatology of lake-effect Snowstorms over southern Ontario, Canada, for the period 1992–99 is developed. The distinguishing characteristics of the synoptic-scale environment associated with intense lake-effect Snowstorms in the region are identified through the study of individual events and through composite analysis. In particular, it is found that a low pressure and a cold-temperature anomaly situated over Hudson Bay, north of the Great Lakes, is a favorable environment for the development of intense lake-effect Snowstorms over southern Ontario. It is also found that the track of the low pressure system can have a significant impact on the development or lack thereof of lake-effect Snowstorms over southern Ontario. It is found that the low pressure systems that trigger intense lake-effect Snowstorms ...
A. Q. Liu - One of the best experts on this subject based on the ideXlab platform.
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Lake-Effect Snowstorms over Southern Ontario, Canada, and Their Associated Synoptic-Scale Environment
Monthly Weather Review, 2004Co-Authors: A. Q. Liu, G. W. K. MooreAbstract:Lake-effect Snowstorms are an important source of severe winter weather over the Great Lakes region and are often triggered by the passage of synoptic-scale low pressure systems. In this paper, a climatology of lakeeffect Snowstorms over southern Ontario, Canada, for the period 1992‐99 is developed. The distinguishing characteristics of the synoptic-scale environment associated with intense lake-effect Snowstorms in the region are identified through the study of individual events and through composite analysis. In particular, it is found that a low pressure and a cold-temperature anomaly situated over Hudson Bay, north of the Great Lakes, is a favorable environment for the development of intense lake-effect Snowstorms over southern Ontario. It is also found that the track of the low pressure system can have a significant impact on the development or lack thereof of lake-effect Snowstorms over southern Ontario. It is found that the low pressure systems that trigger intense lake-effect Snowstorms tend to have an anomalous northeastward track as compared to the eastward track of most low pressure systems that transit the region.
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Lake-Effect Snowstorms over Southern Ontario, Canada, and Their Associated Synoptic-Scale Environment
Monthly Weather Review, 2004Co-Authors: A. Q. Liu, G. W. K. MooreAbstract:Abstract Lake-effect Snowstorms are an important source of severe winter weather over the Great Lakes region and are often triggered by the passage of synoptic-scale low pressure systems. In this paper, a climatology of lake-effect Snowstorms over southern Ontario, Canada, for the period 1992–99 is developed. The distinguishing characteristics of the synoptic-scale environment associated with intense lake-effect Snowstorms in the region are identified through the study of individual events and through composite analysis. In particular, it is found that a low pressure and a cold-temperature anomaly situated over Hudson Bay, north of the Great Lakes, is a favorable environment for the development of intense lake-effect Snowstorms over southern Ontario. It is also found that the track of the low pressure system can have a significant impact on the development or lack thereof of lake-effect Snowstorms over southern Ontario. It is found that the low pressure systems that trigger intense lake-effect Snowstorms ...
Qi Linlin - One of the best experts on this subject based on the ideXlab platform.
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The Analyses of an Unusual Snowstorm Caused by the Northbound Vortex over Liaoning Province in China
Chinese Journal of Atmospheric Sciences, 2009Co-Authors: Qi LinlinAbstract:The satellite,radar and NCEP data are used to analyze an unusual Snowstorm over Liaoning Province during 3-5 March 2007. The analysis shows that the combination of south and north troughs at 500 hPa,the northbound vortex at 850 hPa and the cyclone at the surface are very favorable to the occurrence of Snowstorm. The intense low level jets and ascending motion at 850 hPa are in favor of the moisture transportation and the intensification of snow. The low level jets and the convergence of wind may be considered as triggering mechanism for the Snowstorm.
Ciurlau Doruta - One of the best experts on this subject based on the ideXlab platform.
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Snowstorm – SEVERE METEOROLOGICAL PHENOMENON. CASE STUDIES: TWO Snowstorm EPISODES FROM THE 2011-2012 WINTER
Water resources and wetlands, 2012Co-Authors: Ciurlau DorutaAbstract:In meteorology, a Snowstorm is considered to be a severe meteorological phenomenon of average risk. During any Snowstorm episode, associated phenomena, such as massive snowfalls, wind speeds of up to 150 km/h, dissipation and accumulation of snow, drops in air temperature, can occur simultaneously. In Romania, Snowstorms are associated with a cold and dry wind, locally called crivăţ, especially in the Eastern Southeastern parts of the country, as well as the Southeastern half of the Romanian Plain. The two Snowstorm episodes studied took place in late January (the 24th-26th) and early February (6th-8th), current year. Knowing the synoptic situation in which these two episodes occurred, and the weather evolution in both cases, in this paper I will point out aspects such as how the phenomena occurred, area of development, effects and damages done, similarities and differences between the two periods. At the end of the paper, I will propose measures that should be considered by the authorities, in order to decrease or even avoid damages and life loss.
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Snowstorm severe meteorological phenomenon case studies two Snowstorm episodes from the 2011 2012 winter
Water resources and wetlands, 2012Co-Authors: Ciurlau DorutaAbstract:In meteorology, a Snowstorm is considered to be a severe meteorological phenomenon of average risk. During any Snowstorm episode, associated phenomena, such as massive snowfalls, wind speeds of up to 150 km/h, dissipation and accumulation of snow, drops in air temperature, can occur simultaneously. In Romania, Snowstorms are associated with a cold and dry wind, locally called crivăţ, especially in the Eastern Southeastern parts of the country, as well as the Southeastern half of the Romanian Plain. The two Snowstorm episodes studied took place in late January (the 24th-26th) and early February (6th-8th), current year. Knowing the synoptic situation in which these two episodes occurred, and the weather evolution in both cases, in this paper I will point out aspects such as how the phenomena occurred, area of development, effects and damages done, similarities and differences between the two periods. At the end of the paper, I will propose measures that should be considered by the authorities, in order to decrease or even avoid damages and life loss.
Baugh, Calum A. - One of the best experts on this subject based on the ideXlab platform.
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Cartograms for Use in Forecasting Weather-Driven Natural Hazards
'Informa UK Limited', 2019Co-Authors: Pappenberger Florian, Cloke, Hannah L., Baugh, Calum A.Abstract:This paper evaluates the potential of using cartograms for visualizing and interpreting forecasts of weather-driven natural hazards in the context of global weather forecasting and early warning systems. The use of cartograms is intended to supplement traditional cartographic representations of the hazards in order to highlight the severity of an upcoming event. Cartogrammetric transformations are applied to forecasts of floods, heatwaves, windstorms and Snowstorms taken from the European Centre for Medium-range Weather Forecasts (ECMWF) forecast archive. Key cartogram design principles in standard weather forecast visualization are tested. Optimal cartogram transformation is found to be dependent on geographical features (such as coastlines) and forecast features (such as Snowstorm intensity). For highly spatially autocorrelated weather variables used in analysing several upcoming natural hazards such as 2m temperature anomaly, the visualization of the distortion provides a promising addition to standard forecast visualizations for highlighting upcoming weather-driven natural hazards
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Cartograms for use in forecasting weather driven natural hazards
'Informa UK Limited', 2019Co-Authors: Pappenberger Florian, Cloke, Hannah L., Baugh, Calum A.Abstract:This study evaluates the potential of using cartograms to visualise, and aid interpretation of, forecasts of weather driven natural hazards in the context of global weather forecasting and early warning systems. The use of cartograms is intended to supplement traditional cartographic representations of the hazards in order to highlight the severity of an upcoming event. Cartogrammetric transformations are applied to forecasts of floods, heatwaves, windstorms and Snowstorms taken from the European Centre for Medium-range Weather Forecasts (ECMWF) forecast archive. Key cartogram design principles of importance in standard weather forecast visualisation are tested in terms of the tasks needed to visualise and interpret the forecast maps. These design principles include the influence of spatial autocorrelation of the variable mapped, the minimum and maximum values of a variable, the value of the sea, the addition of geographic features and the geographic extent used. Results show that the utility of the cartograms is dependent on these design principles, but the optimal cartogram transformation is dependent on geographical features (such as coastlines) and forecast features (such as Snowstorm intensity). The importance of forecaster familiarisation training is highlighted. It was found in particular that for highly spatially autocorrelated weather variables used in analysing several upcoming natural hazards such as 2m temperature anomaly, the visualisation of the distortion provides a promising addition to standard forecast visualisations for highlighting upcoming weather driven natural hazards
