Coupling ISO Standards in SDI of Hainan: Disaster Emergency Response and Impact Assessment

ISO/TC211 standards used

ISO 19119 - Geographic information - Services
ISO 19128 - Geographic information - Web Map Server Interface
ISO 19142 – Geographic information – Web Feature Service interface

How the standards are used in our processes/projects

The ISO 19128 standard specifies a "map" to be a portrayal of geographic information as a digital image file suitable for display and easy to distribute over the Internet. In Hainan, China, the standard is used to distribute a series of map products, e.g., population distribution, GF and Sentinel remote sensing images. By using the service you can get access to the up-to-date map, the rainfall distribution updates every 24 hours, and the remote sensing image updates every 5 days. It facilitates data sharing and integration across 6 offices among the Department of Emergency Management. The application covers 19 cities and counties.

The ISO 19142 standard specifies the behavior of a Web feature service that provides transactions on and access to geographic features in a manner independent of the underlying data store. In Hainan, China, the standard is used to distribute 9 categories of impact assessment data products. To provide the decision support information, the most common use is to retrieve transportation facilities (e.g. road, bridge, railway) and public infrastructural facilities (e.g. villages, schools, hospitals), and assess those facilities impacted by typhoons and floods using spatial analyses like overlay. 

The ISO 19119 standard defines the architecture patterns for service interfaces used for geographic information. In Hainan, China, the service interface and chaining are used to implement functionality of disaster impact assessment, e.g., flood inundation calculation, statistical analysis based on administrative division, and automatic thematic mapping and reporting, more than 50 algorithms have been provided as services. These services have successfully provided fast decision support information for over 10 typhoon disasters.  

Benefits for the user

Natural disasters are increasing in frequency and severity in the modern world, the disaster emergency response and impact assessment for the sector stakeholders can be difficult. Data interoperability and international standards are core to SDIs for disaster information sharing across different sectors. It facilitates the geospatial data visualization, dissemination, and analytics under the distributed environment across different agencies and sectors. In this regard, the end users can search, access, and evaluate the geospatial data required for decision making in a cost-effective way.

Country
China

Organization
Wuhan University

Contact person
Peng Yue, November 2020