Intermediary Agenda Interaction Research in the Dissemination of Natural Disaster

Based on the agenda setting theory, this study focus on the event information dissemination process of flooding disaster of Wuhan City using the computer-aided content analysis method and the cross-lagged correlation analysis method. The study shows that topic intermedia agenda-setting did exist while the agenda item did not exist; the information flow direction between professional media and "Self-media" is not fixed, thus the result of agenda-setting interaction is not fixed. The manifestation of agenda-setting interaction includes the convergence of information fusion and public participation. This research hopes to make suggestions for promoting professional media and benign interactions from the media, and further explore the significance of this research.