TY  - JOUR
A1  - Wiegmann, Matti
A1  - Kersten, Jens
A1  - Senaratne, Hansi
A1  - Potthast, Martin
A1  - Klan, Friederike
A1  - Stein, Benno
T1  - Opportunities and risks of disaster data from social media: a systematic review of incident information
JF  - Natural Hazards and Earth System Sciences
N2  - Compiling and disseminating information about incidents and disasters are key to disaster management and relief. But due to inherent limitations of the acquisition process, the required information is often incomplete or missing altogether. To fill these gaps, citizen observations spread through social media are widely considered to be a promising source of relevant information, and many studies propose new methods to tap this resource. Yet, the overarching question of whether and under which circumstances social media can supply relevant information (both qualitatively and quantitatively) still remains unanswered. To shed some light on this question, we review 37 disaster and incident databases covering 27 incident types, compile a unified overview of the contained data and their collection processes, and identify the missing or incomplete information. The resulting data collection reveals six major use cases for social media analysis in incident data collection: (1) impact assessment and verification of model predictions, (2) narrative generation, (3) recruiting citizen volunteers, (4) supporting weakly institutionalized areas, (5) narrowing surveillance areas, and (6) reporting triggers for periodical surveillance. Furthermore, we discuss the benefits and shortcomings of using social media data for closing information gaps related to incidents and disasters.
KW  - Katastrophe
KW  - Social Media
KW  - Datenbank
KW  - Information
KW  - Katastrophenmanagement
KW  - Soziale Medien
KW  - Datensammlung
Y1  - 2021
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20210804-44634
UR  - https://nhess.copernicus.org/articles/21/1431/2021/nhess-21-1431-2021.html
VL  - 2021
IS  - Volume 21, Issue 5
SP  - 1431
EP  - 1444
PB  - European Geophysical Society
CY  - Katlenburg-Lindau
ER  -