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Trees Challenge 2022 Summary and Wrap-up
From 11 October to 11 November 2022, we asked our volunteer scientists to help us estimate the number of trees in the areas around them and contribute to tree and climate science by sharing their observations of trees. The response was impressive! We received over 4700 observations from more than 750 individual participants! Read more in the challenge summary.  >>

GLOBE Observer Trees App Used in Documenting a Critically Endangered Species
The Araucária is an ancient tree whose ancestors populated the landscape before even the dinosaurs, more than 240 million years ago! Although once dominating the entirety of the Atlantic Forest, the Araucária is now an endangered species that occupies only 2% of its historic range.  >>

GLOBE Goes to the Amazon
This is Rusty Low, scientist with the GLOBE Observer Science Team, reporting from the Amazon Rainforest in the Tapajós National Forest, Municipality of Belterra, Para, Brazil for the NASA GLOBE Trees Challenge 2022: Trees in a Changing Climate. My co-author for this blog is Erick Luiz Souza Silva. He is a graduate student at the Federal University of Brasilia.  >>

Comparing GLOBE Trees to ICESat-2: A New Scientific Publication
Can your tree measurements give scientists assessing tree heights with satellite data a useful ground-based reference point? According to a new analysis of GLOBE Observer tree data, it can in certain circumstances. There are four things you can do to make sure your observations are useful.  >>

GLOBE Clouds New Satellite Matching: NOAA-20
The NASA GLOBE Clouds team is excited to announce the upcoming addition of NOAA-20, a new satellite, to the satellite matching capabilities. This means that when you make your cloud observations, you can match your observations to NOAA-20, but what is NOAA-20?  >>

Four Years of ICESat-2 and the Upcoming NASA GLOBE Trees Challenge 2022: Trees in a Changing Climate
What do trees, tree height, lasers, and a NASA satellite called the Ice, Cloud, and land Elevation Satellite-2 have in common?  >>

Land Cover Challenge 2022 Summary and Wrap-up
From 26 July to 26 August, we asked our volunteer scientists to use GLOBE Observer to collect observations of land cover, tying in with the 50th anniversary of the Landsat satellite and with a special focus on land cover in a changing climate. And our volunteers delivered! Read about the results of the challenge.  >>

High School Students Contribute Data for New Scientific Publication via GLOBE Citizen Science
Students from Monsignor McClancy Memorial High School in Queens, New York contributed data to a new peer-reviewed paper showcasing the accuracy of citizen scientist observations of tree height.  >>

Wait! What is in that Landsat Pixel you just measured?
With the GLOBE Observer (GO) app and a few simple steps you can provide valuable data for our research! After all, it’s only through connecting the space and the ground views that we can verify the areas where we are correct, and pick up on missed areas we map incorrectly.  >>

Screen Names and Other Significant Updates to GLOBE Observer
At the end of July 2022, The GLOBE Program released a large update to the GLOBE Observer app and the GLOBE and GLOBE Observer websites. The update gives citizen scientists the ability to create screen names, adds functionality to the “My Observations” page and GLOBE Teams. And, for GLOBE Educators, the release updated GLOBE Educators’ pages and added GLOBE Hydrology Data Entry protocols to the GLOBE Observer app.  >>