Evolving ground system architecture requirements for the National Polar-orbiting Operational Environmental Satellite System (NPOESS). - James L. Duda; Joseph E. Mulligan; Joy M. Henegar (IGARSS, 2002)

Extending climate data records from the EOS era into the NPOESS era. - Robert E. Murphy; Joy M. Henegar; S. Wharton; Bruce Guenther; P. M. Kealy (IGARSS, 2003)