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Climate Policy Speaker Series

NASA's Climate Briefings series is designed to assist the NASA Headquarters community learn about climate and global change issues.

The series is a service of the Science Mission Directorate's (SMD's) Earth Science Division, a significant contributor to national and worldwide technology, measurements, and research in climate and global change to support scientific understanding and inform policy options.

Data Maturity Levels



Products intended to enable users to gain familiarity with the parameters and the data formats.


Product was defined to facilitate data exploration and process studies that do not require rigorous validation. These data are partially validated and improvements are continuing; quality may not be optimal since validation and quality assurance are ongoing.

Data Processing Levels

EOSDIS data products are processed at various levels ranging from Level 0 to Level 4. Level 0 products are raw data at full instrument resolution. At higher levels, the data are converted into more useful parameters and formats. All EOS instruments must have Level 1 products. Most have products at Levels 2 and 3, and many have products at Level 4.

Data Level

Earth Science Disciplines

NASA’s Earth Observing System (EOS) comprises a series of satellites, a science component and a data system which is called The Earth Observing System Data and Information System (EOSDIS).The data centers distribute more than 2,400 Earth system science data products and associated services for interdisciplinary studies.

Data Rights & Related Issues


In order to implement our data policy tenet that algorithms, including scientific source code, be included in the term data, and be shared fully and openly, the following alternate “Data Rights” clause was created by NASA to include in Cooperative Agreements and Contracts with data providers supported by NASA.

1. Introduction

Data & Information Policy

NASA's Earth Science program was established to use the advanced technology of NASA to understand and protect our home planet by using our view from space to study the Earth system and improve prediction of Earth system change. To meet this challenge, NASA promotes the full and open sharing of all data with the research and applications communities, private industry, academia, and the general public.

What We Study

Our planet is changing on all spatial and temporal scales and studying the Earth as a complex system is essential in understanding the causes and consequences of climate change and other global environmental concerns.

Science Questions

NASA’s ability to observe global change on regional scales and conduct research on the causes and consequences of change position it to address the Agency strategic objective for Earth science, which is to advance knowledge of Earth as a system to meet the challenges of environmental change, and to improve life on our planet.


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