A bio-optical model for integration into ecosystem models for the Ligurian Sea

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• 作者：Fethi Bengil^a ; ^{fethibengil@gau.edu.tr} ; David McKee^b ; Sü ; krü ; T. Beşiktepe^c ; Violeta Sanjuan Calzado^d ; Charles Trees^d
• 关键词：Bio-optical model ; Ligurian Sea ; Ocean colour ; Photosynthetically available radiation
• 刊名：Progress in Oceanography
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：149
• 期：Complete
• 页码：1-15
• 全文大小：1840 K
• 卷排序：149

文摘

A bio-optical model has been developed for the Ligurian Sea which encompasses both deep, oceanic Case 1 waters and shallow, coastal Case 2 waters. The model builds on earlier Case 1 models for the region and uses field data collected on the BP09 research cruise to establish new relationships for non-biogenic particles and CDOM. The bio-optical model reproduces in situ IOPs accurately and is used to parameterize radiative transfer simulations which demonstrate its utility for modeling underwater light levels and above surface remote sensing reflectance. Prediction of euphotic depth is found to be accurate to within ∼3.2 m (RMSE). Previously published light field models work well for deep oceanic parts of the Ligurian Sea that fit the Case 1 classification. However, they are found to significantly over-estimate euphotic depth in optically complex coastal waters where the influence of non-biogenic materials is strongest. For these coastal waters, the combination of the bio-optical model proposed here and full radiative transfer simulations provides significantly more accurate predictions of euphotic depth.