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This article seeks to go beyond traditional GIS methods used in creating maps for disaster response that commonly look at the disaster extent. Instead, a slightly different approach is taken using social media data collected from Twitter to explore how people communicate during disaster events, how online communities form and evolve, and how communication methods can improve. This study collected the Twitter data during the 2015 Nepal earthquake disaster and applied a spatiotemporal analysis to find any patterns that show shadows or gaps in communication channels in local communities’ communication. Linkages in social media can be used to understand how people communicate, how quickly they diffuse information, and how social networks form online during disasters. These can improve communication throughout disaster phases. This study offers a deeper understanding of the kinds of spatiotemporal patterns and spatial social networks that can be observed during disaster events. The need for better communication during disaster events is imperative for better disaster management, increasing community resilience, and saving lives.
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Geovisualization of Socio-Spatial Data on Outdoor Activities and Values in the Southern Appalachians
This article describes how GIS is increasingly being used to explore, analyze, and visualize qualitative social data across space. The authors applied a number of geovisualization and analysis approaches to spaces identified on maps by survey participants, in the context of a Human Ecology Mapping (HEM) project in western North Carolina. HEM is an applied research endeavor that has been used in a number of other locations to tease out relationships between people and landscapes by identifying both the activities people do in certain locations and the values they hold about those locations. The authors' western NC project gathered location information through participant sketch mapping, and activities, values, and social/demographic data in a survey. They combined these in a GIS and present a selection of visualization and analyses that demonstrate the effectiveness of GIS techniques in understanding places, how they are used, and which people use them for what purposes.
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- Award ID(s):
- 1633608
- PAR ID:
- 10341198
- Date Published:
- Journal Name:
- International Journal of Applied Geospatial Research
- Volume:
- 9
- Issue:
- 3
- ISSN:
- 1947-9654
- Page Range / eLocation ID:
- 55 to 80
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
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Accepted Manuscript1.0
- Journal Article:
- https://doi.org/10.4018/IJAGR.2018070104
