[P-EM11] Coupling Processes in the Atmosphere-Ionosphere System

[PEM11-01] Forecasting Multi-scale Space Weather Phenomena in the Upper Atmosphere

★Invited Papers

*Tzu-Wei Fang^1,2、Tim Fuller-Rowell^1,2、David L Hysell³、Valery Yudin¹、Adam Kubaryk^1,2、Raffaele Montuoro^1,2、Houjun Wang¹ (1.University of Colorado Boulder, USA、2.NOAA Space Weather Prediction Center, USA、3.Earth and Atmosphere Sciences, Cornell University, USA)

キーワード：ionosphere and thermosphere, plasma irregularity, whole atmosphere model, atmosphere coupling

The coupled Whole Atmosphere Model - Ionosphere Plasmasphere Model (WAM-IPE) is currently in the process of being transitioned into operations at the NOAA Space Weather Prediction Center (SWPC). This model calculates Earth’s global three-dimensional, time-dependent, neutral atmosphere from the surface up to the thermosphere at 10^-7 hPa (400-600 km), coupled to a global ionosphere-plasmasphere that extends to several Earth radii. The WAM-IPE combined with the WAM Data Assimilation System (WDAS) is capable of capturing ionospheric and thermospheric changes during geomagnetic storms as well as the impact from large meteorological events. The operational products from the model aim to provide a forecast of the neutral and plasma environment that impacts the GNSS positioning, global communications, and collision avoidance for space traffic management. Based on the operational code, a high-resolution version of the WAM-IPE has recently developed, which allows us to further simulate smaller scale ionospheric features. Through ingesting neutral and plasma fields from the WAM-IPE to the plasma irregularity model established by Cornell University, we explore the possibility of forecasting the plasma irregularity a few hours in advance. In this talk, we will present the simulated neutral and plasma structures caused by the large-scale space weather event. The effort and preliminary results of high-resolution WAM-IPE simulation on forming the small-scale plasma irregularities will also be discussed.