Now with all GLOBE Protocols

Be a Citizen Scientist with GLOBE Observer

A free app that guides you through collecting environmental data. Your observations help NASA scientists study our planet.

Optimized for low-bandwidth connections • Works offline

What is GLOBE Observer?

A citizen science app allowing volunteers in GLOBE countries to take observations and contribute to the Global Learning and Observations to Benefit the Environment (GLOBE) community.

A way to collect data to track changes in the environment in support of Earth system science research, and validate NASA satellite data and other satellite data.

An open data set available to scientists, and supporting students of all ages in doing real scientific research. Every observation you submit is accessible to researchers worldwide.

Download the app and follow the instructions to get started. Always follow guidelines from your local officials.

Choose Your Protocol

Select a protocol to start making observations

Tip: search by protocol name or description.

Latest Data

Observations from citizen scientists around the world

Recent Measurements

Last 7 Days

Clouds
Mosquito Habitat Mapper
Land Cover
Trees
Explore all data →