15 citations · 18 across the 5 of their papers we have counts for
5 papers · 1 filter
Prediction of Sunspot Cycles by Data Assimilation Method
I. N. Kitiashvili, A. G. Kosovichev
Despite the known general properties of the solar cycles, a reliable forecast of the 11-year sunspot number variations is still a problem. The difficulties are caused by the appare…
Nonlinear Solar Dynamo Model with Magnetic Helicity
I. N. Kitiashvili, A. G. Kosovichev
Variations of the sunspot number are important indicators of the solar activity cycles. The sunspot formation is a result of a dynamo process inside the Sun, which is far from bein…
POLAR Investigation of the Sun - POLARIS
T. Appourchaux, P. Liewer, M. Watt +34
The POLAR Investigation of the Sun (POLARIS) mission uses a combination of a gravity assist and solar sail propulsion to place a spacecraft in a 0.48 AU circular orbit around the S…
Effects of Solar Active Regions on Meridional Flows
Michal Svanda, Alexander G. Kosovichev, Junwei Zhao
The aim of this paper is to extend our previous study of the solar-cycle variations of the meridional flows and to investigate their latitudinal and longitudinal structure in the s…
Validating Time-Distance Far-side Imaging of Solar Active Regions through Numerical Simulations
Thomas Hartlep, Junwei Zhao, Nagi N. Mansour +1
Far-side images of solar active regions have become one of the routine products of helioseismic observations, and are of importance for space weather forecasting by allowing the de…