The world faces multi-type of disasters. It is of great significance for people around the world to use modern scientific and technological means to strengthen disaster monitoring and early warning, in which GIS plays an important role.
GIS has the ability to quickly process and comprehensively analyze massive amounts of spatial and attribute data. During disaster emergency rescue, it integrates, displays, and fully analyzes various types of geographic information, emergency resources, and disaster site data, providing strong support for post-disaster rescue.
Mobile GIS can be adopted to do multi-source heterogeneous data browsing, comprehensive data collection, professional data analysis, and dynamic emergency mapping.
During the rescue process, it can view on-site disaster maps, collect disaster information, command and dispatch personnel and materials, and assist in rapid post-disaster emergency rescue.
On-site rescue map: comprehensive presentation of disaster area information
Mobile GIS multi-source heterogeneous data browsing provides the ability to load multi-source vector, DEM, high-resolution image, 3D and other data, and quickly browse multi-layer high-definition "one map" on mobile devices.
When a disaster occurs, rescue personnel can integrate high-definition images of the disaster-stricken area, administrative divisions, transportation networks, water distribution, building information and other basic maps to mark the population distribution in the disaster-stricken area and the distribution of rescue resources such as rescue teams, rescue equipment, medical facilities, and material reserves, as well as possible sources of danger and potential risks (such as chemical leaks, radioactive contamination, etc.). They can also mark the location, capacity and other disaster-related data of temporary resettlement points and shelters.
The "one map" for disaster area rescue provides basic data support for the planning and execution of rescue operations. It helps rescue personnel understand the severity and distribution of disasters, and formulate more effective rescue strategies, ensuring the rational allocation and effective use of rescue resources, improving rescue efficiency, and reducing disaster losses.
In addition, the widespread use of drones provides more possibilities for quickly obtaining images of disaster sites. The drone's sky perspective facilitates multi-angle aerial reconnaissance and monitoring of disaster areas, and real-time images of disaster areas. At the same time, superimposing disaster vector maps can help quickly obtain the actual situation of the disaster site, and the command and rescue center receive the disaster images sent back from the scene in real-time, which will provide an important reference for rescue command.
Rescue information collection: obtaining first-hand information on the disaster area
Mobile GIS provides data collection capabilities including "location/graphics, forms, and multimedia" to present collected data in all aspects. In terms of location/graphics, it can access the real-time location of satellites such as Beidou and GPS, as well as high-precision positioning equipment or services to enhance location accuracy. It can also directly draw geometric objects such as points, lines, and surfaces on the map, and obtain the graphic location directly through the map. Customize the form according to the actual collection needs, list all the content that needs to be filled in, and avoid underfilling or missing. Multimedia covers pictures, voice, video, etc., which intuitively present the actual situation on the field.
During the rescue work, rescuers need to develop appropriate information collection plans according to the urgency or importance of the incident. Workers hold mobile devices and collect disaster information such as collapsed buildings and damaged roads, rescue information such as material storage points and medical treatment points, as well as personnel information such as the number of casualties and missing persons. They obtain the actual situation of the disaster site as soon as possible and report it to the rescue command center to provide first-hand data on the scene for the rescue command.
Emergency rescue command: reasonable dispatch of rescue resources
The situation mapping capability of mobile GIS supports the drawing of point symbols, arrow symbols and other mapping symbols, and can expand the symbol library to facilitate the access to industry-specific mapping symbols.
By setting conditions such as animation type, duration, and playback order, simulation animations can be created and situation simulations can be performed, providing an intuitive and effective tool for quickly expressing dispatch or command information, helping decision makers better understand and manage complex dispatch and command tasks.
During the rescue, the commanders can view the disaster situation, material situation, and rescue situation on the map. They can use various arrow symbols to intuitively mark the routes and allocation of rescue personnel and materials. Clear symbol marking reduces the waste of time and personnel caused by poor communication, allowing the work to be carried out more quickly, reasonably, and efficiently.
Disaster monitoring and early warning: detection and prevention of disasters
Many disasters are caused by the interaction of complex geological factors and changeable climate conditions. Through satellite remote sensing, radar monitoring, seismic network and other means, all-round and multi-angle monitoring, combined with statistical charts, analysis models, etc., statistical analysis of regional climate patterns, horizontal and vertical data comparison can be done. Timely detection of disaster signs, and prediction of the time, location and scale of possible disasters can be conducted so as to take measures in advance to reduce the impact of disasters.
Disaster Assessment and Analysis: Quantitative Analysis of Disaster Situation
Mobile GIS has professional analysis capabilities. It can not only perform offline spatial analysis, but also present the distributed analysis results of the server on the mobile terminal. Among them, spatial analysis includes vector analysis such as transportation and facility network analysis, buffer analysis, overlay analysis, and raster analysis such as interpolation analysis and terrain analysis.
By integrating spatial data, satellite remote sensing images, meteorological data and other information, mobile GIS can use a combination of multiple analysis models to conduct quantitative analysis of geological disasters, flood disasters, earthquake disasters, etc., assess the affected areas and the extent of the disaster, which will help the rescue command center make timely and accurate decisions, and guide the actions of rescue personnel.
SuperMap iMobile, the mobile GIS product provides multi- source data display and browsing, integrated data collection and editing, dynamic situation mapping, intelligent spatial analysis and other capabilities to assist disaster emergency rescue, which is conducive to fully grasping the information of the disaster area, rationally allocating disaster relief resources, effectively reducing disaster losses, and protecting the lives and property of the people. Welcome to SuperMap's official website to download the original text and experience the efficient map service brought by SuperMap's mobile GIS products.
