South Atlantic anomaly filter for satellite UV observation

Jianguo Niu; Lawrence E. Flynn

doi:10.1117/12.894427

13 September 2011 South Atlantic anomaly filter for satellite UV observation

Jianguo Niu, Lawrence E. Flynn

Proceedings Volume 8153, Earth Observing Systems XVI; 81531E (2011) https://doi.org/10.1117/12.894427
Event: SPIE Optical Engineering + Applications, 2011, San Diego, California, United States

Abstract

A South Atlantic Anomaly (SAA) filter has been developed to filter out large amounts of noise caused by high energy protons hitting onto the optical instrument focal plane when the satellite passes through the SAA region. The filter is based on the Principal Component Analysis (PCA)/Empirical Orthogonal Function (EOF) analysis. The EOF vectors derived from an orbit outside of the SAA region were used to represent the observations coming from the noisy SAA region. Then using the clear EOF vectors, the observations within SAA region are rebuilt with the most important principle components. The filter works well in UV region. Tests on L1B data from Global Ozone Monitoring Experiment-2 (GOME2) and Ozone Monitoring Instrument (OMI) have been conducted. It is expected that this filter can help to improve the measurements and retrievals for the Ozone Mapping and Profiler Suite (OMPS) nadir profiler in the SAA region.

Citation Download Citation

Jianguo Niu and Lawrence E. Flynn "South Atlantic anomaly filter for satellite UV observation", Proc. SPIE 8153, Earth Observing Systems XVI, 81531E (13 September 2011); https://doi.org/10.1117/12.894427

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