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Multichannel Filter Radiometer (SSH)

NSSDCA ID: 1978-042A-02

Mission Name: DMSP 5D-1/F03
Principal Investigator:


Special sensor H (SSH) was a vertical temperature profile radiometer (VTPR). The objective of this experiment was to obtain vertical temperature, water vapor, and ozone profiles of the atmosphere to support Department of Defense requirements in operational weather analysis and forecasting. The SSH was a 16-channel sensor with one channel (1022 cm-1) in the 10-micrometer ozone absorption band, one channel (835 cm-1) in the 12-micrometer atmospheric window, six channels (747, 725, 708, 695, 676, 668.5 cm-1) in the 15-micrometer CO2 absorption band, and eight channels (535, 408.5, 441.5, 420, 374, 397.5, 355, 353.5 cm-1) in the 22- to 30-micrometer rotational water-vapor absorption band. The experiment consisted of an optical system, detector and associated electronics, and a scanning mirror. The scanning mirror was stepped across the satellite subtrack, allowing the SSH to view 25 separate columns of the atmosphere every 32 s over a cross track ground swath of 2000 km. While the scanning mirror was stopped at a scene station, the channel filters were sequenced through the field of view. The surface resolution was approximately 39 km at nadir. The radiance data were transformed into temperature water vapor and ozone profiles by a mathematical inversion technique. A more complete description of the experiment can be found in the report, D. A. Nichols, "DMSP special meteorological sensor H, optical subsystem," Optical Engineering, v. 14, n. 4, July-August 1975.

Alternate Names

  • DMSP5D-1-F03/SSH
  • SSH


  • Earth Science: Atmospheric Chemistry
  • Earth Science: Atmospheric Dynamics

Additional Information

Questions and comments about this experiment can be directed to: Coordinated Request and User Support Office



NameRoleOriginal AffiliationE-mail
Dr. Charles P. ArnoldGeneral ContactUS Air Force Space Division
Principal InvestigatorGlobal Weather Center
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