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Science Requirements Document for OMI-EOS
Levelt, P F | vanderA, R | Bhartia, P K | Boersma, F | Brinksma, E | Carpay, J | Chance, K | deHaan, J | Hilsenrath, E | Isaksen, I
2000.
A Dutch-Finnish scientific and industrial consortium is supplying
the Ozone Monitoring Instrument (OMI) for Earth Observing
System-Aura (EOS-Aura). EOS-Aura is the next NASA mission to study
the Earth's atmosphere extensively, and successor to the highly
successful UARS (Upper Atmospheric Research Satellite) mission.
The 'Science Requirements Document for OMI-EOS' presents an
overview of the Aura and OMI mission objectives. It describes how
OMI fits into the Aura mission and it reviews the synergy with the
other instruments onboard Aura to fulfill the mission. This
evolves in the Scientific Requirements for OMI (Chapter 3),
stating which trace gases have to be measured with what necessary
accuracy, in order for OMI to meet Aura's objectives. The most
important data product of OMI, the ozone vertical column,
densities shall have a better accuracy and an improved global
coverage than the predecessor instruments TOMS (Total Ozone
Monitoring Spectrometer) and GOME (Global Ozone Monitoring
Experiment), which is a.o. achieved by a better signal to noise
ratio, improved calibration and a wide field-of-view. Moreover, in
order to meet its role on Aura, OMI shall measure trace gases,
such as NO2, OClO, BrO, HCHO and SO2, aerosols, cloud top height
and cloud coverage. Improved accuracy, better coverage, and finer
ground grid than has been done in the past are goals for OMI.
After the scientific requirements are defined, three sets of
subordinate requirements are derived. These are: the algorithm
requirements, i.e. what do the algorithms need in order to meet
the scientific requirements; the instrument and calibration
requirements, i.e. what has to be measured and how accurately in
order to provide the quality of data necessary for deriving the
data products; and the validation requirements, i.e. a strategy of
how the OMI program will assure that its data products are valid
in the atmosphere, at least to the required accuracy.
 Descriptors: ATMOSPHERIC COMPOSITION | TRACE ELEMENTS | OZONE | EARTH OBSERVING
SYSTEM (EOS) | ATMOSPHERIC SOUNDING | OPTICAL MEASURING INSTRUMENTS | RADIATION MEASURING INSTRUMENTS | UPPER ATMOSPHERE RESEARCH
SATELLITE (UARS) | TOTAL OZONE MAPPING SPECTROMETER | AEROSOLS | CLOUD HEIGHT INDICATORS | OPTICAL THICKNESS | VERTICAL DISTRIBUTION | UPPER ATMOSPHERE
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