The QA4ECV user requirements survey report is complete. Results of this survey, distributed to over 10 000 satellite data users, indicate that data users want satellite-derived products to contain all aspects of quality assurance information, but do not find these readily available. Product uncertainty and processing traceability information are the least accessible components of quality assurance. QA4ECV will use these findings to develop a better quality assurance system for Essential Climate Variables derived from satellite measurements. Read the full report here, and find the detailed survey responses for Atmosphere products here and Land products here (part 1 and part 2).