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NASA EOSDIS 20 Years of Data Usage and User Assessment in Support of Open Science InitiativeNASA EOS Data and Information System (EOSDIS) has been distributing data to world-wide users free with open access. Since the launch of NASA’s Terra satellite in 1999, more than 10,000 distinct EOS data products have been archived and distributed by NASA-funded Earth Science data centers encompassed by the EOSDIS. As of September 30, 2022, more than 90 PB of data archived by EOSDIS have been made available to public users and during FY 2023 over 60 PB have been distributed to public users worldwide. Over these twenty and more years, it has shown significant increase in the distribution of various data products. This has been possible due to free and open access of the data thereby a step towards open science initiative. The purposes of this study are 1) to perform a comprehensive investigation of the archive and distribution patterns of EOSDIS data products for last 20 years, 2) to identify and characterize the global user community for those data, 3) analyze the increased demand for data products, 4) evaluate distribution of higher level products because those are the ones most frequently used in the studies of natural disasters by public users (those data requestors not involved directly in the production or validation of the data products.) and contribute globally to the advance scientific understanding of the Earth-Atmosphere Systems.

Funded by the Earth Science Data and Information System (ESDIS) Project, the ESDIS Metrics System (EMS) collects archive, distribution, and user information from EOSDIS data centers. The information (comprising all data products including heritage datasets going back to the 1990s) is stored in a relational database from which it can be analyzed in many ways. We present several metrics analyses that include data distribution patterns for all, as well as the most frequently requested data products; and user characterizations by country, domain, and Earth Science discipline (e.g., Land, Ocean, Cryosphere) of the requested products. Due to the enormous quantity of data handled by EOSDIS data centers and requirements of future data systems to archive increasing amounts of Earth Science data from future and current Earth Science missions effectively, the results of this study can provide insight on how the user communities have accessed the data and provide guidance for open science initiative.
Document ID
20230017285
Acquisition Source
Goddard Space Flight Center
Document Type
Poster
Authors
Lalit Wanchoo
(Adnet Systems (United States) Bethesda, Maryland, United States)
Francis Lindsay
(Goddard Space Flight Center Greenbelt, Maryland, United States)
Dany Turcios
(Adnet Systems (United States) Bethesda, Maryland, United States)
Yan Hao
(Adnet Systems (United States) Bethesda, Maryland, United States)
Heather Weir
(Adnet Systems (United States) Bethesda, Maryland, United States)
Date Acquired
November 28, 2023
Subject Category
Earth Resources and Remote Sensing
Report/Patent Number
IN41B-0589
Meeting Information
Meeting: 23rd Meeting of the American Geophysical Union (AGU)
Location: San Francisco, CA
Country: US
Start Date: December 11, 2023
End Date: December 15, 2023
Sponsors: American Geophysical Union
Funding Number(s)
CONTRACT_GRANT: 80GSFC23CA040
Distribution Limits
Public
Copyright
Public Use Permitted.
Technical Review
NASA Technical Management
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