Speaker
Mr
Matthew DeLand
(Science Systems and Applications, Inc. (SSAI))
Description
The Ozone Mapping and Profiler Suite (OMPS) Limb Profiler (LP) instrument is currently flying on the Suomi NPP satellite, and has collected more than 5 years of regular data since its launch in October 2011. LP limb scattering hyperspectral measurements simultaneously cover a spectral range between 290 nm and 1015 nm with variable spectral resolution (0.8-30 nm), and an altitude range between 0 km and 80 km with 1 km sampling. Level 1 sun-normalized radiance data created from these measurements are available to create multiple products. OMPS LP ozone profiles represent a continuation of the Aura MLS high resolution data record, providing profiles covering the altitude range from cloud top to 52.5 km with ~1.8 km vertical resolution. We are creating a reprocessed LP Version 2.5 (V2.5) ozone product that incorporates improved altitude registration information and stray light correction in the Level 1 data set, and a simplified aerosol correction using LP aerosol profiles in the Level 2 retrieval, and a reduced set of wavelengths for both UV and visible retrievals. This ozone product has reduced bias relative to MLS in the tropical upper stratosphere/lower stratosphere, and typically agrees to within ±5% in the stratosphere. OMPS LP Version 1.0 (V1.0) aerosol extinction profiles extend the stratospheric aerosol data record available from SAGE II and OSIRIS, providing extinction coefficient profiles from cloud top to 30-35 km. The spatial and temporal sampling of LP enables extensive observation of volcanic eruption plumes and stratospheric dynamics. We have also developed a cloud height product to supply lower boundary information for the ozone and aerosol retrievals. Future LP algorithm development will include a 2-D approach to address line-of-sight inhomogeneity effects that affect all limb-viewing measurements.
Primary author
Mr
Matthew DeLand
(Science Systems and Applications, Inc. (SSAI))
Co-authors
Dr
Ghassan Taha
(USRA)
Dr
Glen Jaross
(NASA GSFC)
Dr
Natalya Kramarova
(SSAI)
Dr
P. K. Bhartia
(NASA GSFC)
Dr
Philippe Xu
(SAIC)
