Non-Profit Archives | Page 3 of 3

The water hyacinth is an invasive aquatic plant found in Lake Nokoué in the southern area of Benin. This plant grows rapidly, forming thick layers on the water, shading out other plants. As it decays, it depletes oxygen levels, impacting the fish and other aquatic life in the lake. In addition to the ecological impacts, the hyacinth also has economic impacts, clogging up transportation routes. The hyacinth fiber has a high-performance absorption power for all types of liquids, from dyes to crude oil and heavy fuel oil. Green Keeper Africa created a transformation path that takes harvested hyacinths and converts them into an absorptive product that can soak up oil spills.

Building an Economic Engine

In order to produce the absorption solutions, Green Keeper Africa works with local communities to collect and prepare the hyacinth for production. The company needed more visibility into the growth patterns to be able to set pricing each season and direct harvesters to the most abundant areas.

Blue Raster developed an application that uses an algorithm to detect water hyacinth in satellite imagery. The application also gathers data from water sensors currently being prototyped by MIT as well as other ground data and water quality readings. Green Keeper uses this view of real time and historic data to fairly set prices and plan for harvest areas they need to support.

Beyond Hyacinth Tracking

This application can help promote additional sustainable and profitable uses of Lake Nokoué. Acadja is a fishing method where dense masses of branches are set in an area to attract fish in large numbers for harvesting. The Blue Raster application can use footage from drones to map the placement of the Acadjas, overlaying that information with other data to track environmental impacts and/or present alternate locations or methods that may result in more fish with less environmental impact.

The Mekong River runs through six countries: China, Myanmar, Laos, Thailand, and Cambodia, and Vietnam. It provides a livelihood and natural resources for over 60 million people. New upstream dams in China are changing the waterflow, creating a huge impact on the countries and people that depend on the river. Using the Mekong Dam Monitor as a tool, the Stimson Center’s Southeast Asia Program and Eyes on Earth, Inc committed to working with countries to gain more visibility into the flow of the river and better plan for water availability.

Blue Raster developed the Mekong Dam Monitor to provide unprecedented transparency of the flow of water and conditions of dams and reservoirs along the Mekong River. Using satellite data as well as weather and water gauge data, the monitor provides visibility into what is happening upstream, giving a comprehensive near-real time view of the current state of the Mekong basin along with historic conditions. This allows people all along the river and those advocating for more equitable and sustainable use of the river to understand and plan for changes in the levels of the river.

In late 2021, Blue Raster integrated WordPress into the application, making it easier for the project administrators to make updates to the site themselves. The site also received an update to the UI, making it more mobile friendly to support growing field use. Finally, the team also coordinated making the site available in six local languages, increasing the access to this valuable data on water levels and projected water flow.

Blue Raster is proud to continue to support this project, providing real time visibility and reporting on impacts of up river decisions on the various communities that rely on the Mekong.

Green Keeper Africa – Utilizing Invasive Plant Species to Mitigate Lake Pollution in Benin

Mekong Monitor – Providing Vital Insight for River-dependent Communities