Global Geochemical Observation Network and Digital Chemical Earth

Global Geochemical Observation Network and Digital Chemical Earth

The Challenge

There is a critical need to establish a global geochemical observation (baselines) network to provide data for monitoring the chemical changes of the Earths near-surface environment.

The Solution

The Chemical Earth aims to establish a global geochemical observation (baselines) network to observe the content, distribution and changes of chemical elements in the surface of the earth for the global sustainable development of natural resources and environment; to provide a platform for equal access to global geochemical data services and knowledge sharing, bridging the scientific community, policy makers and the public.

Our Impact

  1. Initiative and implementation of the international ‘Big Science’ programme - Mapping the Chemical Earth;
  2. Develop international geochemical mapping technical guidelines which has played a leading role across the world;
  3. Significant progress of Global Geochemical Baselines Project. The global geochemical baseline network has covered a total area of 31.50 million square kilometers, taking up approximately 31% of the world land area.
  4. Establishment of “Chemical Earth” website ( and data sharing.

Policy Drivers

Through Chemical Earth, users have access to a wide range of global geochemistry information. Chemical Earth's work is categorized under the following themes:

  1. Establishing a Global Geochemical Baselines Network for documenting baselines of nearly-all natural chemical elements in the Earths near-surface environment;
  2. Formulating a guideline and protocol for Global Geochemical Observation Networks through the establishment of the China Geochemical Observation Network, for temporal sampling and analysis (every 3 to 5 years) to recognize and quantify potential environmental changes of chemical elements;
  3. Determining possible geochemical response to major historic geological events, such as extinction episodes and ancient climate change;
  4. Compiling the Silk Road Geochemical Atlas from Asia to Europe;
  5. Updating the digital Chemical Earth platform allowing anyone to access vast amounts of geochemical data and maps through the Internet.

Our Donors

Our Partners


Participating Organizations


How We Work

Chemical Earth has a distributed operational model that places emphasis on working with and through existing organizations and partners with Earth observation capabilities and facilitating new networks to allow the flow of information and end users to be connected to the ‘Chemical Earth’ website and the data and decision support tools that it offers.

Chemical Earth has engaged closely with international organizations and countries:

UNESCO, GEO, IUGS, Colombia, Russian, Turkey, Peru, Argentina, Mongolia, Brazil, Cuba, Laos, Thailand, Australia, USA, etc.

Each of our implementing partners are selected based on their existing role in supporting the uptake of Earth observation in decision making and based on their existing strengths in providing technical support to affiliated countries. Implementing partners themselves will be key users of Chemical Earth.


For more information about the Global Geochemical Observation Network and Digital Chemical Earth explore the website

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