Citing DAAC Data
Our data sets are funded through the NASA Earth Science Data and Information System (ESDIS) project. The National Snow and Ice Data Center is one of the Earth Observing System Data and Information System (EOSDIS) Distributed Active Archive Centers (DAACs), which is part of the ESDIS project. NASA data are not copyrighted; however, as a condition of use, when you publish NSIDC NASA DAAC data or results derived from the data, we require that you cite the data sets in your work with a formal citation. A citation acknowledges our data contributors, and allows us to track the use and impact of our data. It also helps us report data distribution activity to NASA, and to assist others who may contact us about data that are referenced in publications.
How to Cite DAAC Data
- You must include a citation in the references section of your publication. While we appreciate acknowledgement in the text of the publication, we are better able to track the use of our data sets if citations are included as references.
- You can find appropriate data set citations that can be copied and pasted into your documentation on each data set's landing page and in its documentation. If you need assistance with a citation format, please contact NSIDC User Services.
The following example shows how to cite the use of a NSIDC DAAC data set in a publication:
Author's Name. Year of Publication. Title of Data Set and Version Number, [indicate subset used1]. Boulder, Colorado USA: NASA National Snow and Ice Data Center Distributed Active Archive Center. DOI2. Access Date.
1This field is for temporal or spatial coverage of the data used. It is necessary to enable a micro-citation or the ability to refer to the specific data used—the exact files, granules, records, etc. For example, March to June 2004, or 84°N, 75°W; 44°N, 10°W.
2Use the complete DOI URL when adding a DOI to the citation. Example: http://dx.doi.org/10.7265/N5N877Q9
Ashcroft, P. and F. J. Wentz. 2013. AMSR-E/Aqua L2A Global Swath Spatially-Resampled Brightness Temperatures, Version 3. [indicate subset used]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. http://dx.doi.org/10.5067/AMSR-E/AE_L2A.003. Accessed July 18, 2015.
Use and Credits of Photographs and Satellite Images
You may download and use photographs and images on this site free of charge. Some photographs and images may have specific copyright restrictions and credits, noted at the point of access. Photographs and imagery may be used for commercial purposes, but may not be re-sold.
- General credit format: "Image/photo courtesy of the National Snow and Ice Data Center, University of Colorado, Boulder."
- Satellite image: "Imagery from the NASA MODIS instrument, courtesy NASA NSIDC DAAC."
If you need additional help, please contact NSIDC User Services.