6 research outputs found
Produção e composição do leite de vacas de quatro grupos genéticos submetidas a dois manejos alimentares no período de lactação
Assimilative mapping of ionospheric electrodynamics in the thermosphere-ionosphere general circulation model comparisons with global ionospheric and thermospheric observations during the GEM/SUNDIAL period of March 28-29, 1992
Simulations of energetic particles interacting with nonlinear anisotropic dynamical turbulence
Ion Composition of the Earth’s Radiation Belts in the Range from 100 keV to 100 MeV / nucleon 100\mbox{ MeV}/\mbox{nucleon} : Fifty Years of Research
Dynamics of the Earth's particle radiation environment
The physical processes affecting the dynamics of the Earth's particle radiation environment are reviewed along with scientific and engineering models developed for its description. The emphasis is on models that are either operational engineering models or models presently under development for this purpose. Three components of the radiation environment, i.e., galactic cosmic rays (GCRs), solar energetic particles (SEPs) and trapped radiation, are considered separately. In the case of SEP models, we make a distinction between statistical flux/fluence models and those aimed at forecasting events. Models of the effects of particle radiation on the atmosphere are also reviewed. Further, we summarize the main features of the models and discuss the main outstanding issues concerning the models and their possible use in operational space weather forecasting. We emphasize the need for continuing the development of physics-based models of the Earth's particle radiation environment, and their validation with observational data, until the models are ready to be used for nowcasting and/or forecasting the dynamics of the environment