FAQ for ISO 19115 and 19115-2 View Metadata As: Get Data, FAQ, HTML, 19139 XML

Assess Metadata For: Completeness, DOI Readiness, CSW Readiness, Components
Scaled Data from Digital Ionograms
All the data contributed come from 1957 through 1990. They have been digitized, reformatted, converted to universal time (the software also can display the data in local meridian time), and passed through quality control filters.