Informing & Persuading

Maps have always played an important role in informing and persuading the public and decision-makers about environmental justice issues by visualizing trends that are nearly impossible to understand in a spreadsheet. Accurate information is the foundation of this use case, enabling people to take action and advocate for the most affected communities.

The Geohazard Risk Mapping Initiative (GRMI), a youth-led nonprofit organization, utilizes the Africa Geoportal provided by Esri to create vital geospatial tools for managing flood risks in Nigeria. The GRMI team, comprising volunteers skilled in GIS and satellite imagery analysis, develops real-time flood reporting tools, interactive flood maps, web applications, and a comprehensive flood event database.

Nigeria faces recurring flooding events exacerbated by climate change, which alters rainfall patterns and increases the severity and frequency of floods. The need for effective flood prediction and management tools is crucial to minimize the impact on communities.

Solution

Using the open GIS community data and mapping platform from Esri, GRMI developed:

  • Real-time flood reporting tools that enable swift responses to emerging flood events.

  • Interactive flood maps that help predict flood-prone areas.

  • Web applications that provide accessible and user-friendly interfaces for non-experts to understand flood risks.

  • A detailed flood event database that records historical flood data to inform future planning.

Impact

The tools and applications developed by GRMI have significantly enhanced the local communities' ability to prepare for and respond to floods. Governments, emergency management organizations, and citizens now have access to detailed maps showing flood susceptibility of critical areas such as farmlands, schools, and marketplaces. This data is crucial for initiating preventive measures, thereby mitigating the damage caused by floods and reducing loss of life, property, and livelihoods.

Future Prospects

With continued support and resources, GRMI aims to extend its impact, further harnessing geospatial technology to address climate change-related challenges in Nigeria and other African countries. The initiative serves as a model of how young volunteers can leverage modern technology to make significant contributions to disaster management and community resilience.

Via Esri

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