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[IEEE 2019 IEEE Globecom Workshops (GC Wkshps) - Waikoloa, HI, USA (2019.12.9-2019.12.13)] 2019 IEEE Globecom Workshops (GC Wkshps) - Improving QKD for Entangled States with Low Squeezing via Non-Gaussian Operations
摘要： This study investigates standard and regional algal pigment index 1 (API1) estimates in the Atlantic off the southwestern Iberian Peninsula. Standard API1 data are those delivered by the Medium Resolution Imaging Spectrometer (MERIS) orbiting sensor. Equivalent quantities are computed by applying a regional inversion scheme using as input both MERIS and in situ remote sensing re?ectances (Rrs). Reference data for the development of the regional algorithm and for the analysis of tested products include ?eld measurements of total concentration of chlorophyll a (TChla) and coincident Rrs values collected at different distances from the coast. Validation results, based on matchup analysis, identi?es a systematic overestimation of standard API1 versus the reference TChla values. The additional comparison of product maps in selected regions of interest con?rms this tendency and demonstrates the feasibility and relevance of using regional algorithms for investigating spaceborne products. Analogous applications are hence devised for the early-stage evaluation of the forthcoming Sentinel-3/OLCI data products.
关键词： remote sensing re?ectance,Medium Resolution Imaging Spectrometer (MERIS) algal pigment index 1 (API1),ocean color,multilayer perceptron (MLP) neural nets
更新于2025-09-19 17:13:59
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Display Technology 2019: Never a Dull Moment
摘要： This study investigates standard and regional algal pigment index 1 (API1) estimates in the Atlantic off the southwestern Iberian Peninsula. Standard API1 data are those delivered by the Medium Resolution Imaging Spectrometer (MERIS) orbiting sensor. Equivalent quantities are computed by applying a regional inversion scheme using as input both MERIS and in situ remote sensing re?ectances (Rrs). Reference data for the development of the regional algorithm and for the analysis of tested products include ?eld measurements of total concentration of chlorophyll a (TChla) and coincident Rrs values collected at different distances from the coast. Validation results, based on matchup analysis, identifies a systematic overestimation of standard API1 versus the reference TChla values. The additional comparison of product maps in selected regions of interest confirms this tendency and demonstrates the feasibility and relevance of using regional algorithms for investigating spaceborne products. Analogous applications are hence devised for the early-stage evaluation of the forthcoming Sentinel-3/OLCI data products.
关键词： ocean color,remote sensing re?ectance,Medium Resolution Imaging Spectrometer (MERIS) algal pigment index 1 (API1),multilayer perceptron (MLP) neural nets
更新于2025-09-16 10:30:52