Artículo

Gossn, J.I."Effect of Prompt Particle Events on OLCI Ocean Color Imagery in the South Atlantic Anomaly: Detection and Removal" (2019) IEEE Geoscience and Remote Sensing Letters. 16(2):163-167
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Abstract:

It has been found that cosmic rays and massive charged particles trapped in the magnetosphere or arriving from the sun might produce spike noise over the dark offset signal coming from charge-coupled devices (CCDs) on optic sensors such as Ocean and Land Color Instrument (Sentinel-3/OLCI) and Medium Resolution Imaging Spectrometer (Envisat/MERIS). These phenomena are called prompt particle events (PPEs) and in the case of OLCI, are the cause of isolated across-track pixel stripes present at the L1B imagery where the radiance values appear anomalously high/low with respect to their surroundings. The magnitude and frequency of these stripes are evidently higher in the region of the South Atlantic (Magnetic) Anomaly (SAA), which also covers central South America. In this region, PPE contamination at the top-of-atmosphere (TOA) radiances has a significant impact on water reflectance and biogeophysical product retrieval over the affected pixels, which means they must be detected and removed from the L1B imagery. In this letter, a PPE detection and removal algorithm is proposed to be applied over water bodies, based on a simple moving filter with a 5\\times 1 along-track kernel applied over the whole spectral set of OLCI TOA radiances. Its performance was evaluated visually and by comparing with preexistent predictions. Results indicate that images in the SAA region contain 27.8 times more PPE-contaminated pixels than images from outside the SAA and that the most affected bands are at 400 and 1016 nm, where the fraction of PPE-flagged pixels over the SAA reaches 0.14% and 0.26%, respectively. © 2004-2012 IEEE.

Registro:

Documento: Artículo
Título:Effect of Prompt Particle Events on OLCI Ocean Color Imagery in the South Atlantic Anomaly: Detection and Removal
Autor:Gossn, J.I.
Filiación:Instituto de Astronomía y Física Del Espacio, CONICET, Universidad de Buenos Aires, Buenos Aires, Argentina
Palabras clave:Atmospheric correction; Ocean and Land Color Instrument (OLCI); turbid waters; Charge coupled devices; Charged particles; Clouds; Color; Cosmology; Earth (planet); Magnetic resonance imaging; Magnetosphere; Oceanography; Sensors; Atmospheric corrections; Kernel; Ocean and Land Color Instrument (OLCI); Oceans; Turbid water; Pixels
Año:2019
Volumen:16
Número:2
Página de inicio:163
Página de fin:167
DOI: http://dx.doi.org/10.1109/LGRS.2018.2872172
Handle:http://hdl.handle.net/20.500.12110/paper_1545598X_v16_n2_p163_Gossn
Título revista:IEEE Geoscience and Remote Sensing Letters
Título revista abreviado:IEEE Geosci. Remote Sens. Lett.
ISSN:1545598X
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1545598X_v16_n2_p163_Gossn

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Citas:

---------- APA ----------
(2019) . Effect of Prompt Particle Events on OLCI Ocean Color Imagery in the South Atlantic Anomaly: Detection and Removal. IEEE Geoscience and Remote Sensing Letters, 16(2), 163-167.
http://dx.doi.org/10.1109/LGRS.2018.2872172
---------- CHICAGO ----------
Gossn, J.I. "Effect of Prompt Particle Events on OLCI Ocean Color Imagery in the South Atlantic Anomaly: Detection and Removal" . IEEE Geoscience and Remote Sensing Letters 16, no. 2 (2019) : 163-167.
http://dx.doi.org/10.1109/LGRS.2018.2872172
---------- MLA ----------
Gossn, J.I. "Effect of Prompt Particle Events on OLCI Ocean Color Imagery in the South Atlantic Anomaly: Detection and Removal" . IEEE Geoscience and Remote Sensing Letters, vol. 16, no. 2, 2019, pp. 163-167.
http://dx.doi.org/10.1109/LGRS.2018.2872172
---------- VANCOUVER ----------
Gossn, J.I. Effect of Prompt Particle Events on OLCI Ocean Color Imagery in the South Atlantic Anomaly: Detection and Removal. IEEE Geosci. Remote Sens. Lett. 2019;16(2):163-167.
http://dx.doi.org/10.1109/LGRS.2018.2872172