نتایج جستجو برای: meteorologists
تعداد نتایج: 268 فیلتر نتایج به سال:
Key Concept 1: Self-Similarity Facilitates Event Forecasting. First, natural phenomena tend to form patterns in space and time that repeat over many orders of magnitude, a property that is described as “self-similarity.”7 An object in nature (space) displays self-similarity “if it can be decomposed into smaller copies of itself,”7 that is, if smaller components are essentially scaled-down versi...
FoG currently produces bilingual marine and public weather forecasts at several Canadian weather offices. The system is engineered to reflect "good professional style" as found in human forecasts. However, some regularization and simplification of the output has been needed. Sublanguage engineering issues include tradeoffs in coverage and style, handling variation and evolution of sublanguages,...
<span>One of the most significant and daunting activities in today's world is temperature prediction. The meteorologists traditionally predict via some statistical models aimed to forecast fluctuations that might have happened atmospheric parameters such as temperature, humidity, etc. main objective this paper build an intelligent prediction model Erbil city KRG/ Iraq based on a historica...
From 19 July 2022 to 31 August 2022, a rare persistent drought and heat event occurred in the middle of Yangtze River basin (MYRB). Normalized difference vegetation Index (NDVI) over 25% area decreased more than 0.05 compared with climatology, causing extremely agricultural disaster economic losses China. Previous studies have shown that occurrence compound events (CDHEs) MYRB was associated in...
Abstract. Weather radars measure rainfall in altitude, whereas hydro-meteorologists are mainly interested at ground level. During their fall, drops advected by the wind, which affects location of measured field. The governing equation a rain drop's motion relates acceleration to forces gravity and buoyancy along with drag force. It depends non-linearly on instantaneous relative velocity between...
BACKGROUND The project "Assessment and prevention of acute health effects of weather conditions in Europe" (PHEWE) had the aim of assessing the association between weather conditions and acute health effects, during both warm and cold seasons in 16 European cities with widely differing climatic conditions and to provide information for public health policies. METHODS The PHEWE project was a t...
Every year, hurricanes cause a lot of damage, especially, when they hit cities along the coast line. A notorious example is Hurricane Katrina in 2005 which hit New Orleans and damaged the city significantly. Human intervention cannot change the path of a hurricane. Hence the best possible way to reduce the damage is to predict the path of the hurricane and avoid direct contact. The formation, m...
Pollution of air resulting from toxic wastes emitted by large manufacturing plants and power-generation plants is a much-studied topic. The issue of health hazards arising from water pollution (see Wagner, Shamir, and Marks, 1994), storage and transportation of hazardous materials, and genetically-engineered food products has been a topic of intense debate and considerable research for the last...
The prediction of severe weather events such as hurricanes is always a challenging task in the history climate research, and many deep learning models have been developed for predicting severity events. When disastrous hurricane strikes coastal region, it causes serious hazards to human life habitats also reflects prodigious amount economic losses. Therefore, necessary build improve accuracy av...
Numerical weather forecasts are prone to uncertainty coming from inaccuracies in the initial and boundary conditions and lack of precision in numerical models. Ensemble of forecasts partially addresses these problems by considering several runs of the numerical model. Each forecast is generated with different initial and boundary conditions and different model configurations [GR05]. The ensembl...
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