GLOBE Observer Data: 2016-2019.

Area of Science:

• Earth Science
• Citizen Science
• Environmental Monitoring

Background:

• The Global Learning and Observations to Benefit the Environment (GLOBE) Program has been active since 1995.
• GLOBE Observer is a NASA-sponsored international citizen science project.
• It is the largest citizen science project within NASA's Earth Science Division in terms of participants and geographic coverage.

Purpose of the Study:

• To summarize the GLOBE Observer dataset from April 2016 to December 2019.
• To highlight the project's contribution to environmental data collection.
• To showcase the impact of the GLOBE Observer mobile app.

Main Methods:

• Utilized the GLOBE Observer mobile app for data collection.
• Collected atmospheric, hydrologic, and terrestrial observations.
• Integrated citizen science data with satellite observations from multiple NASA and international missions (Aqua, Terra, CALIPSO, GOES, Himawari, Meteosat).

Main Results:

• Collected 320,000+ observations and 1,000,000+ georeferenced photographs worldwide from 38,000 participants.
• Significantly increased the spatial extent and sampling density of GLOBE measurements.
• More than doubled the number of measurements collected through the GLOBE Program.
• The collected data represents an effort equivalent to over 13 years of individual work.

Conclusions:

• The GLOBE Observer app has greatly enhanced the GLOBE Program's data collection capabilities.
• Citizen science participation through the app has substantially improved environmental data.
• GLOBE Observer data is publicly accessible, facilitating further research and application.