The library offers access to several on-line resources.
- Library Catalog - Access to books, print journals and more.
- OpenSky - Open access institutional repository supporting UCAR/NCAR/UCP scholarship
- NCAR Archives - Preserves the institutional memory of UCAR/NCAR/UCP
- Open access journals - Specific to UCAR areas of research and education
The library also subscribes to the following subscription services: