The campaign requests observations for satellite comparison
The GLOBE Program
The official campaign page asks for ground observations near PACE overpasses to assess cloud edges and total cloud cover.
Based on: The GLOBE Program
Verdict
True
Verification confidenceMedium
Explanation
Yes. NASA's PACE Clouds Challenge invites volunteers to submit cloud photos and observations that researchers can compare with satellite measurements. The campaign is scheduled for September 15 through October 15, 2026.
The GLOBE campaign page explains that researchers want to assess how well PACE identifies cloud edges and total cloud cover. Observations made close to a satellite overpass provide a ground-based comparison for its measurements.
This is a contribution to data assessment, not proof that the campaign has already improved satellite accuracy. Following the observation protocol matters: an unrelated cloud photo taken at another time does not provide the same comparison.
Key takeaway
Timed ground observations can help researchers evaluate satellite cloud detection. The campaign's scientific results are not established in advance.
Evidence
Supports the claim
The announcement explains the scientific purpose
The GLOBE Program
The August announcement explains that volunteer photos and cloud-cover observations will help researchers evaluate PACE cloud identification, including broken-cloud conditions.
Based on: The GLOBE Program
Recent coverage reports the public invitation
CT Insider
The September 8 article reports the campaign and its purpose. It draws on the program's information and does not independently establish scientific results.
Based on: CT Insider
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