Acknowledgement Policy

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How to cite and acknowledge PGC services (maps, imagery, etc.) in publications or academic journals.

Important Information

National Science Foundation (PGC’s primary funding source) policy requires researchers to acknowledge NSF support in all publications, web pages and media interviews.

By accepting PGC’s services, including access to data via the PGC website, users agree to cite PGC and its sponsorship by the NSF. The original source of any third-party data supplied by PGC must also be properly attributed.

Acknowledgement of PGC’s assistance provides PGC with valuable feedback and a measure of its success in the scientific community.

If you have used PGC services, including satellite imagery delivery, follow the guidelines in the Acknowledgements section below.

If you have used a map, satellite image or imagery-derived product from PGC in a figure, refer to the Figure Citations guidelines.

Please address any questions to your PGC Primary Contact.

Acknowledgements

Acknowledging PGC Services (including data access)

Geospatial support for this work provided by the Polar Geospatial Center under NSF OPP awards 1043681 & 1559691.

Acknowledging DEMs created from the ArcticDEM Project

DEMs provided by the Polar Geospatial Center under NSF OPP awards 1043681, 1559691 and 1542736.

These citations should be included in the acknowledgement section of any published work, presentation, poster, or document.

Figure Citations

Citing PGC-created Figures and Illustrations

[Map, Figure] by [Author’s Name], Polar Geospatial Center.

Citing Existing PGC Maps, Figures and Illustrations

Adapted from [Map, Figure] by [Author’s Name], Polar Geospatial Center, Reference ID: [PGC map/figure reference ID].

Citing Existing non-PGC Maps from PGC Map Catalog

Map copyright [Authoring Organization], Accessed from Polar Geospatial Center, Reference ID: [PGC reference ID].

Citing PGC-created Figures and Illustrations Containing DigitalGlobe Imagery

Imagery copyright [year of imagery collection] DigitalGlobe, Inc. [Map, Figure] and data provided by [author’s name], Polar Geospatial Center.

Citing DigitalGlobe Commercial Satellite Imagery

Imagery Copyright [year of imagery collection] DigitalGlobe, Inc.

Citing PGC-built Digital Elevation Models

DEM(s) created by the Polar Geospatial Center from DigitalGlobe, Inc. imagery.

Citing Digital Elevation Models made from DigitalGlobe Imagery

DEM(s) created from DigitalGlobe, Inc. imagery.

The word “copyright” may be replaced by the © symbol.

In cases where DigitalGlobe imagery from multiple years is used, the most recent year should be referenced in the acknowledgement text.

Summary

In this Guide, we’ve covered:

  • Necessity for PGC’s Acknowledgement Policy
  • Citing PGC services
  • Citation text for figure captions

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