Who needs to use IMU?
IMU is used to deliver a metadata XML file to the SDC when:
- USGS data are published in an external (non-USGS) repository
- USGS data are published in a smaller USGS repository that
does not provide metadata to the SDC
- a collection-level metadata record is necessary to provide
access to a data release or data system that contains hundreds to
thousands of individual assets
Who does not need to use IMU?
- Anyone who is publishing their data to the following USGS
repositories, all of which publish metadata nightly to the SDC:
- ScienceBase
- Alaska Science Center Repository
- Coastal & Marine Geoscience Data System
- EROS / Earth Explorer
Before submitting your XML metadata record to IMU, you must
ensure that:
- Your metadata is written in one of the following standards
- FGDC Content Standard for Digital Geospatial Metadata
(CSDGM)
- FGDC CSDGM Biological Data Profile
- ISO 19115-2
- the latest version of ISO, ISO 19115-1/19115-3,
will be supported by SDC beginning in Q3 of FY24
- Your metadata XML file is valid
- Your metadata contains a valid USGS Metadata Identifier, in
the correct syntax and inserted in the correct location in the XML
- Your USGS Metadata Identifier is registered in the USGS
Persistent Identifier Registration (PIR) Tool
- Your metadata contains a valid link (a DOI) to the data's
landing page in your chosen repository
- Your metadata file provides a metadata contact (a named
person/position or a team name)
- Your metadata file provides a valid and active metadata
contact email address
- Your metadata file provides a metadata date that reflects
the latest YYYY-MM-DD on which the metadata was updated
Failure to meet the above criteria will result in your metadata
record failing validation and not being indexed in the Science Data
Catalog
By submitting your metadata record to the SDC via IMU, you are
affirming that your metadata record has been reviewed for compliance
with USGS
SM 502.7.
IMU is undergoing maintenance to comply with new USGS policies
related to Two-Factor Authentication for applications.
If you have a metadata file to submit to the Science Data
Catalog:
- send the XML file as attachment to
ask-sdm@usgs.gov.
- indicate in the email whether the file you are sending is a
record that is new to the SDC, or a revision to an XML metadata
file previously submitted to the SDC through IMU.