Get scienced!!!


Computer Science and IT

Let’s do 1+1=10!

Field trip in Nepal for Mobile Application

A researcher, Roya Olyazadeh, from University of Lausanne, developed a prototype web application and an offline mobile version for data collection on the impacts of natural hazards in Nepal, such as damaged infrastructure, landslide or flooding events. This collected information can be made available to and used by the responsible authorities and the public for further analysis and visualization. This application is designed as a low-cost, rapid and participatory method for recording of impacts happened due to hazard events and includes geolocation, map visualization, mapping of events with image captures and adding comments or feedback for public participation. Different user levels can be defined for data access and information. The objectives of this work are to provide:

  • a mobile application with advanced geospatial visualization;
  • a service for easy data collection and storage of events information;
  • a centralized data storage accessible by different platforms (smartphones and standard web browsers);
  • an active participation method in event mapping and storage of information.

Based on the recent visit to Nepal, an offline mobile version is made available to address the lack of internet accessibility in rural areas. This version also includes an interactive, offline map with background satellites image to enhance the visibility and mapping of landslides in the area. After the geolocation, the user can start mapping and save data into a text file that can be easily uploaded to the server whenever internet connection is available. All the events and records can be visualized within a map interface by an administrator and made available to the public after the approval. This prototype specifically targeted at conducting an assessment of landslides within a predetermined area to assess land use characteristics such as roads, forest areas and rivers. Continue reading “Field trip in Nepal for Mobile Application”


Post Disaster Response

“Who and Where needs help?” is the most important question to be answered after a disaster hit, especially for the emergency relief and aid organizations, so that resources and supplies could be effectively and efficiently distributed to those in desperate need. However, such kind of information is difficult to know, in particular the developing countries, due to the lack of systematic plan, comprehensive database of assets, population or infrastructure. Therefore, the demand for spatial information has greatly increased, and considering the urgent needs of emergency relief operations, crowdsourcing and volunteered geographic information (VGI) has become quite important in the data collection and creation of online maps. Continue reading “Post Disaster Response”

Blog at

Up ↑