The active temperature, ozone and moisture microwave spectrometer (ATOMMS)

E. R. Kursinski, D. Ward, A. Otarola, R. Frehlich, C. Groppi, S. Albanna, M. Shein, W. Bertiger, H. Pickett, M. Ross

Research output: Chapter in Book/Report/Conference proceedingChapter

18 Scopus citations


The Active Temperature, Ozone and Moisture Microwave Spectrometer (ATOMMS) is designed to observe Earth's climate. It extends and overcomes several limitations of the GPS radio occultation capabilities by simultaneously measuring atmospheric bending and absorption at frequencies approximately 10 and 100 times higher than GPS. This paper summarizes several important conceptual improvements to ATOMMS made since OPAC-1 including deriving the hydrostatic upper boundary condition directly from the ATOMMS observations, our much improved understanding of the impact of turbulence and its mitigation, and a new approach to deriving atmospheric profiles in the presence of inhomogeneous liquid water clouds. ATOMMS performance significantly exceeds that of radiometric sounders in terms of precision and vertical resolution and degrades only slightly in the presence of clouds and it does so independently of models. Our aircraft-to-aircraft occultation demonstration of ATOMMS performance will begin in 2009 representing a major step towards an orbiting observing system.

Original languageEnglish (US)
Title of host publicationNew Horizons in Occultation Research
Subtitle of host publicationStudies in Atmosphere and Climate
PublisherSpringer Berlin Heidelberg
Number of pages19
ISBN (Print)9783642003202
StatePublished - 2009
Externally publishedYes

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)


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