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Altitude Registration of Limb-Scattered RadiationOne of the largest constraints to the retrieval of accurate ozone profiles from UV backscatter limb sounding sensors is altitude registration. Two methods, the Rayleigh scattering attitude sensing (RSAS) and absolute radiance residual method (ARRM), are able to determine altitude registration to the accuracy necessary for long-term ozone monitoring. The methods compare model calculations of radiances to measured radiances and are independent of onboard tracking devices. RSAS determines absolute altitude errors, but, because the method is susceptible to aerosol interference, it is limited to latitudes and time periods with minimal aerosol contamination. ARRM, a new technique introduced in this paper, can be applied across all seasons and altitudes. However, it is only appropriate for relative altitude error estimates. The application of RSAS to Limb Profiler (LP) measurements from the Ozone Mapping and Profiler Suite (OMPS) on board the Suomi NPP (SNPP) satellite indicates tangent height (TH) errors greater than 1 km with an absolute accuracy of +/-200 m. Results using ARRM indicate a approx. 300 to 400m intra-orbital TH change varying seasonally +/-100 m, likely due to either errors in the spacecraft pointing or in the geopotential height (GPH) data that we use in our analysis. ARRM shows a change of approx. 200m over 5 years with a relative accuracy (a long-term accuracy) of 100m outside the polar regions.
Document ID
20170000989
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Moy, Leslie
(Science Systems and Applications, Inc. Lanham, MD, United States)
Bhartia, Pawan K.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Jaross, Glen
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Loughman, Robert
(National Inst. of Aerospace Hampton, VA, United States)
Kramarova, Natalya
(Science Systems and Applications, Inc. Lanham, MD, United States)
Chen, Zhong
(Science Systems and Applications, Inc. Lanham, MD, United States)
Taha, Ghassan
(Universities Space Research Association Greenbelt, MD, United States)
Chen, Grace
(Science Systems and Applications, Inc. Lanham, MD, United States)
Xu, Philippe
(Science Applications International Corp. Greenbelt, MD, United States)
Date Acquired
January 31, 2017
Publication Date
January 2, 2017
Publication Information
Publication: Atmospheric Measurement Techniques
Publisher: Atmospheric Measurement Techniques
Volume: 10
Issue: 1
e-ISSN: 1867-8548
Subject Category
Earth Resources And Remote Sensing
Report/Patent Number
GSFC-E-DAA-TN39014
Funding Number(s)
CONTRACT_GRANT: NNG12HP08C
CONTRACT_GRANT: NNG11HP16A
CONTRACT_GRANT: NNL09AA00A
Distribution Limits
Public
Copyright
Other
Keywords
Ozone profiles
Geolocation

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