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Proceedings Paper

End-to-end modeling of the ozone mapping and profiler suite
Author(s): Brian K. McComas; Colin Seftor; Quinn Remund; Jack Larsen; Carter Wright; Erica Raine
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Paper Abstract

The Ozone and Mapping Profiler Suite (OMPS) is an instrument suite in the National Polar-orbiting Operation Environmental Satellite System (NPOESS). The OMPS instrument is designed to globally retrieve both total column ozone and ozone profiles. To do this, OMPS consists of three sensors, two Nadir Instruments and one Limb Instrument. Each OMPS sensor has an End-to-End Model (ETEM) developed using the Toolkit for Remote Sensing, Analysis, Design, Evaluation, and Simulation (TRADES), a Ball Aerospace proprietary set of software tools developed in Matlab. The end-to-end modeling activities, which includes a radiative transfer model, the ETEM, and retrieval algorithms, have three fundamental objectives: sensor performance validation, aid in algorithm development, and algorithm robustness validation. The end-to-end modeling activities are key to showing sensor performance meets the system level Environmental Data Record (EDR) requirements. To do this, the ETEM incorporates sensor data; including point spread functions, stray light, dispersion, bandpass, and focal plane array (FPA) noise parameters. The sensor model characteristics are first implemented with predictions and updated as component test data becomes available. To evaluate the system’s EDR performance, the input radiance derived from the radiative transfer model is entered into the ETEM, which outputs a simulated image. The retrieval algorithms process the simulated image to determine the ozone amount. The system level EDR performance is determined by comparing the retrieved ozone amount with the truth, which was entered into the forward model. Additionally, the ETEM aids the algorithm development by simulating the expected sensor and calibration data with the expected noise characteristics. Finally, the algorithm robustness can be validated against extreme conditions using the ETEM.

Paper Details

Date Published: 3 September 2004
PDF: 12 pages
Proc. SPIE 5420, Modeling, Simulation, and Calibration of Space-based Systems, (3 September 2004); doi: 10.1117/12.542793
Show Author Affiliations
Brian K. McComas, Ball Aerospace & Technologies Corp. (United States)
Colin Seftor, Raytheon Technical Services Co. (United States)
Quinn Remund, Ball Aerospace & Technologies Corp. (United States)
Jack Larsen, Raytheon Technical Services Co. (United States)
Carter Wright, Ball Aerospace & Technologies Corp. (United States)
Erica Raine, Univ. of Colorado (United States)

Published in SPIE Proceedings Vol. 5420:
Modeling, Simulation, and Calibration of Space-based Systems
Pejmun Motaghedi, Editor(s)

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