Comparison between sentiments of people from affected and non-affected regions after the flood

Figures & data

Table 1. The example of emotion words with sentiments.

Sentiment dictionary	Sentiment	Sample words
DLUT-Emotion ontology	Positive	Happy, smile, peace, rescue, trust, magnificent feat, excellent, great
	Neutral	Hesitation, certainty, strength, yearning, longing, precision, shyness, instant
	Negative	Panic, rumor, fear, confusion, turmoil, despair, mess, scary
The secondary dictionary	Positive	Flood fighting, rescue, disaster relief, salvage, protect, hold on, tenacious, mutual aid
	Neutral	Urgent, order, army, waring, evacuate, resettle, dam, water level
	Negative	Flood, levees, flooding, disaster-affected, death in service, overflow, collapse, sacrifice

Figure 1. Geographic heat map of Sina Weibo flood-related posts.

Figure 2. The proportions of text with three sentiments in different regions.

Table 2. LDA analysis of texts with negative sentiment in affected and non-affected regions.

Group (region)	Number	Topics	Keywords
Affected areas (Regions in the middle and lower reaches of the Yangtze River)	1-1	Resettlement of people	Safety, the public, severe, situation, affected, resettlement, transfer, heavy rain, county, actions
	1-2	Flood control deployment	Implement, Jiujiang, flood control, strength, work, sandbag, age, thought, hard, captain
	1-3	Official rescue work	Flood fighting, army, soldiers, headquarters, armed police, leader, flooding, rescued, PLA, corps
	1-4	Flood warning information	The Yangtze River, warning, release, the middle and lower reaches, heavy rain, basin, lake areas, red, flooding, alert
	1-5	Update of the dam	Hydrologic station, dam, lake, Xingzi station, cordon, gap, freshwater lake, Tangyin station, overflow
Non-affected areas (Regions out of the middle and lower reaches of the Yangtze River)	2-1	News releases	Reports, basin, major flood, forecast, news, live, CCTV, journalists, information
	2-2	Water level information	Information, water level, duration, affect, forecast, exceed, peak, flood peak, rainfall, rapids
	2-3	Official rescue work	Armed police, officers and army, soldiers, supplies, assist, first line, convoy, troops, support, PLA
	2-4	Flood warning information	Yangtze River, early warning, the middle and lower reaches, rainfall, region, province, deployment, red, landslide, flood season
	2-5	Update of the dam	Poyang Lake, hydrology station, dam, Xingzi station, cordon, flood level, overflow, dike breach, watershed, gap

Data availability statement

The data that support the findings of this study are available from the corresponding author, Hao Gao, upon reasonable request.