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Tag: Environment

Bringing Transparency to Transboundary Water Policy in the Mekong River Basin

From its headwaters on the Tibetan Plateau, the Mekong River runs through six countries, China, Myanmar, Laos, Thailand, and Cambodia before reaching the ocean. Over 60 million people live in the Mekong watershed and rely on its natural resources and fish and agricultural products produced here are shipped throughout the world. However, recent evidence indicates that the operation of new upstream dams constructed in China are changing the natural flow cycle of the river, affecting downstream communities.

mekong dam monitor

In spring 2020 a U.S. State Department-supported study by independent researchers at Eyes on Earth published a study showing that the upstream dams restricted enormous quantities of water in 2019, while downstream areas were experiencing an unprecedented drought. The newly launched Mekong Dam Monitor builds on that research to provide unprecedented transparency of the flow of water and conditions of dams and reservoirs along the Mekong River. The application was developed through a partnership between the Stimson Center’s Southeast Asia Program and Eyes on Earth, Inc with funding from the Mekong-US Partnership, and the Chino Cienega Foundation.

The Monitor includes multiple tools and indicators in a single platform, giving a comprehensive near-real time view of the current state of the Mekong basin along with historic conditions. Users can explore detailed information about dozens of dams and Impact Areas, including viewing satellite imagery, weekly reservoir level (meters above sea level), and inundated area, all estimated from remotely sensed data in the Virtual Gauges page. One tab over, the Lancang Cascade visualization shows the weekly state of water retention and power generation in each of China’s 11 upstream dam cascade. Just two dams in the cascade, Xiaowan and Nuozhadu can collectively hold nearly as much water as the Chesapeake Bay.

The Natural Flow Model visualizations leverage analysis by Eyes on Earth that predict the expected water in the Mekong River based on temperature and precipitation data derived from satellite imagery. These values are compared to actual flow rates measured at two locations by the Mekong Water Commission. The expected and measured flow rates diverge starting in 2012 with extreme differences in 2019 and 2020 when very little of the expected water from the rainy season passed the downstream gauges.

Additional data on climate anomalies, such as precipitation, snow cover, and temperature allow users to compare current and historic maps from 1992 to the present. Finally, the Basin Wide Dams and Connectivity page builds on the success of the Stimson Center’s Mekong Infrastructure Tracker Dashboard and provides comprehensive information about hydropower development in the region. This includes information about dam developers, financers, energy generation, and more.

mekong river basin

The Mekong Dam Monitor was developed using the Esri JavaScript API and leverages data hosted in ArcGIS Online as well as ArcGIS Image Server.

Nearly all data shown in the Monitor is available for download for transparency. With this tool, stakeholders and policy makers will have a greater ability to anticipate environmental and social impacts of dam operations, adopt evidence-based policies for managing the Mekong River, and participate in transboundary river governance.

Mekong Infrastructure Tracker

Home to more than 300 million people and some of the most endangered wildlife on the planet, the Greater Mekong region in Southeast Asia is the second most naturally diverse place in the world, second only to the Amazon. This region is also home to the Mekong River which not only sustains much of the wildlife in the area, but also the people. The majority of the population in this region is dependent on the river and its surrounding wetlands to support their way of life. In turn this also means that this population and the vast biodiversity in the region are extremely vulnerable to the economic and environmental outcomes of growing infrastructure.

Mekong River

As one of the nation’s leading think tanks dedicated to building solutions to promote international security, prosperity, and justice, the Stimson Center is working to address the environmental and social impacts along the Mekong river to improve food security, stability and cross-country relations. To help analyze these issues, Blue Raster collaborated with the Stimson Center to create The Mekong Infrastructure Tracker, an interactive Web App to explore the infrastructure boom and its impacts in the Mekong region. With funding provided by USAID, the Mekong Infrastructure Tracker was developed with support from the USAID Mekong Safeguards activity led by The Asia Foundation.

Mekong Infrastructure Tracker

The Mekong Infrastructure Tracker

The Mekong Infrastructure Tracker web app leverages ArcGIS Online and the ESRI JavaScript API and provides users with data transparency to analyze the type and scale of different infrastructure projects in the region in relation to socioeconomic and environmental factors.

The tracker contains two dashboards, one showing power generation projects and the other showing road, rail, and waterway infrastructure projects. The data in the tracker visualizes projects by type in combination with data showing threatened species, earthquakes over the last twenty years, armed conflict, ethnicity, watersheds and tributaries that can all be turned on and off depending on user preference.

Additionally, users can filter the projects by a variety of statuses: year of completion, project size, sponsoring country, project type, country, or watershed.

Mekong Infrastructure Tracker filter

From these filters, the tracker produces a series of charts and graphs to better visualize some of the statistics surrounding these projects which can then be downloaded based on user needs.

The Mekong Infrastructure Tracker allows for transparency of the infrastructural impact on this region, both protecting the diverse and endangered wildlife as well as the livelihoods of millions of people. Explore this new tool today!


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