The success of the Center for Integrated Space Weather Modeling (CISM) depends on the production of an everimproving series of comprehensive scientific models describing the Solar Terrestrial environment from the solar surface to the upper atmosphere of earth. We describe here our strategy for coupling the codes we have selected as the basis for these models, which include core global codes whi...

We present a methodology to change the state of the Weather Research Forecasting (WRF) model coupled with the fire spread code SFIRE, based on Rothermel’s formula and the level set method, and with a fuel moisture model. The fire perimeter in the model changes in response to data while the model is running. However, the atmosphere state takes time to develop in response to the forcing by the he...

We present an overview of a modeling environment, consisting of a coupled atmosphere-wildfire model, utilities for visualization, data processing, and diagnostics, open source software repositories, and a community wiki. The fire model, called SFIRE, is based on a fire-spread model, implemented by the level-set method, and it is coupled with the Weather Research Forecasting (WRF) model. A versi...

En route airspace congestion, often due to convective weather, causes system-wide delays and disruption in the U.S. National Airspace System (NAS). Present-day methods for managing congestion are mostly manual, based on uncertain forecasts of weather and traffic demand, and often involve rerouting or delaying entire flows of aircraft. A sequential decision-making approach is proposed, in which ...

In previous research, significant effects of weather conditions on car crashes have been found. However, most studies use monthly or yearly data and only few studies are available analyzing the impact of weather conditions on daily car crash counts. Furthermore, the studies that are available on a daily level do not explicitly model the data in a time-series context, hereby ignoring the tempora...

Introduction of ubiquitous technology is changing our daily living environment. Particularly, the new IT services applying the RFID and USN technology are used in wide ranging areas such as the weather, logistics, urban facility management and agriculture. However, information security of such new services closely related to our daily lives is very weak. This paper intends to evaluate the safet...

compression techniques,” in 1970 Int. Conf. Communications, pp. 20.14-20.21. [6] T. J. Lynch, “Compression of weather charts by the segmented Lynch-Davisson code,” IEEE Trans. Commun. (Corresp.), vol. COM-21, pp. 774-776, June 1973. [7] H. Meyr et al., “Optimum run length codes,” in 1973 Znt. Co& Communications, pp. 48.1948.25. [8] W. S. Michel et al., “A coded facsimile system,” in IRE Weston ...

Apple scab, Venturia inaequalis, is the most serious fungal disease of apple in Romania. The fungus attacks foliage, blossoms and fruits by defoliating trees and rendering fruit unmarketable. In addition, to cultivated apple, apple scab also attacks flowering crabapple, mountain ash and firethorn.. A simple system for apple growers to monitor environmental weather data (temperature and leaf wet...

Sub-synoptic scale troughs and cyclones which form on the cold-air side of the main polar front are often responsible for adverse weather. Some of the more vigorous systems contain convective rainbands that can produce locally severe weather, including thunderstorms, with strong wind gusts and small tornadoes. There has, however, been relatively little research into the mesoscale organisation o...

In this paper we are explosively the fundamental theory of radar system modules STC (sensitivity time control) or sea clutter and FTC (fast time constant) or rain clutter. The STC and FTC are commonly used to some clutter. The radar signal is widely used for weather forecast, air port traffic control, military and fire control. The system implements radar processing procedures in real time mode...