نتایج جستجو برای: weather

تعداد نتایج: 42748  

2015
A Geetha

Weather forecasting is a crucial phenomenon in today’s world. Though weather prediction is completely automated, with the help of tools like Weather Research & Forecasting (WRF), Advanced Research WRF (ARW), Weather Processing System (WPS), it’s a ever challenging and a topic of interest because prediction is not an accurate always. Weather forecasting is a continuous, high dimensional, dynamic...

2005
William P. Mahoney Richard A. Wagoner

A significant increase in the awareness of the need for improved surface transportation weather services has occurred over the last five years. During this time, a coordinated national effort has been undertaken to highlight the unmet weather needs of the transportation community and identify research requirements and implementation strategies for improved weather services. The benefits of such...

Journal: :Age and ageing 2015
Richard G Prins F J van Lenthe

BACKGROUND physical activity (PA) is an important factor to promote healthy ageing. However, older adults are not physically active enough. Socio-ecological models suggest that weather conditions are determinants of PA and may bias relations between other environmental factors and PA. This may especially be the case for the most vulnerable and inactive older persons. Understanding the role of w...

2018
Douglas Richardson Hayley J Fowler Christopher G Kilsby Robert Neal

Weather-pattern, or weather-type, classifications are a valuable tool in many applications as they characterize the broad-scale atmospheric circulation over a given region. This study analyses the aspects of regional UK precipitation and meteorological drought climatology with respect to a new set of objectively defined weather patterns. These new patterns are currently being used by the Met Of...

Journal: :Royal United Services Institution. Journal 1892

2017
Gert Mulder Freek van Leijen

InSAR signal delays due to the varying atmospheric refractivity are a potential data source to improve weather models [1]. Especially with the launch of the new Sentinel-1 satellites, which increases data coverage, latency and accessibility, it may become possible to operationalize the assimilation of differential integrated refractivity (DIR) values in numerical weather models. Although studie...

2012
Sofia Reis Nuno Correia

In this paper the contribution of real time weather data to player enjoyment was tested and evaluated. To gauge the contribution of weather to player engagement an adaptronic, multiplayer, location based game, where real time weather data is key to the gameplay, was created. In this game the player assumes the role of a wizard and confronts other players in duels where the current weather plays...

2005
Sameer Alam Hussein A. Abbass Michael Barlow Peter Lindsay

The continuing growth of air traffic worldwide motivates the need for new approaches to air traffic management that are more flexible both in terms of traffic volume and weather. Free Flight is one such approach seriously considered by the aviation community. However the benefits of Free Flight are severely curtailed in the convective weather season when weather is highly active, leading aircra...

Journal: :Journal of the Franklin Institute 1891

Journal: :تحقیقات جغرافیایی 0
جلیل باقری دانشگاه اصفهان

â â â  this paper attempts to investigate the relationship between 500hpa circulation patterns and weather types (coldest, warmest and raining) over 16 synoptic stations of mountainous region of iran. the mountainous region of iran covers about 670000 square kilometer (41 percent) of iran. in this paper have been investigated the relationship between circulation patterns in 500hpa level with we...

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