NTRS - NASA Technical Reports Server

Back to Results
Total Ozone from the Ozone Monitoring System (OMI) using TOMS and DOAS MethodsThe Ozone Monitoring Instrument (OMI) is the Dutch-Finnish contribution to NASA's EOS-Aura satellite scheduled for launch in January 2004. OMI is an imaging spectrometer that will measure the back-scattered Solar radiance in the wavelength range of 270 to 500 nm. The instrument provides near global coverage in one day with a spatial resolution of 13x24 square kilometers. OMI is a new instrument, with a heritage from TOMS, SBW, GOME, GOMOS and SCIAMACHY. OMI'S unique capabilities for measuring important trace gases and aerosols with a small footprint and daily global coverage, in conjunction with the other Aura instruments, will make a major contribution to our understanding of stratospheric and tropospheric chemistry and climate change. OMI will provide data continuity with the 23-year ozone record of TOMS. There are three ozone products planned for OMI: total column ozone, ozone profile and tropospheric column ozone. We are developing two different algorithms for total column ozone: one similar to the algorithm currently being used to process the TOMS data, and the other an improved version of the differential optical absorption spectroscopy (DOAS) method, which has been applied to GOME and SCIAMACHY data. The main reasons for starting with two algorithms for total ozone have to do with heritage and past experience; our long-term goal is to combine the two to develop a more accurate and reliable total ozone product for OMI. We will compare the performance of these two algorithms by applying both of them to the GOME data. We will examine where and how the results differ, and use the extensive TOMS-Dobson comparison studies to assess the performance of the DOAS algorithm.
Document ID
Document Type
Conference Paper
Veefkind, J. P. (Royal Netherlands Meteorological Inst. De Bilt, Netherlands)
Bhartia, P. K. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Gleason, J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
deHaan, J. F. (Royal Netherlands Meteorological Inst. De Bilt, Netherlands)
Wellemeyer, C. (Science Applications International Corp. Lanhan, MD, United States)
Levelt, P. F. (Royal Netherlands Meteorological Inst. De Bilt, Netherlands)
Date Acquired
August 21, 2013
Publication Date
January 1, 2003
Subject Category
Instrumentation and Photography
Meeting Information
EGS-AGU-EUG Joint Assembly 2003(Nice)
Distribution Limits
Work of the US Gov. Public Use Permitted.