Abstract
Technology is now becoming available to develop submillimeter‐wavelength heterodyne radiometric experiments for remote sensing the upper atmosphere from space. Such experiments can provide many essential measurements for assessing and critically monitoring the depletion of stratospheric ozone by pollution from industrial products. A millimeter‐wavelength experiment for this purpose is now ready for launch on the NASA Upper Atmosphere Research Satellite (UARS). An enhanced version of the UARS experiment, which operates at submillimeter wavelengths, is under investigation for the future NASA Earth Observing System.