In this study, we examined the albedo's dependence on clearness index (K_t) based on measured global radiation data and phytoplankton variability influence represented by chlorophyll (a) concentration at the upper layers over the Malacca Strait. Half-hourly global solar radiation (5°26′53″ N, 100°11′36″ E) measurement over the period from January to October 2017 was analyzed to investigate the correlation between clearness index and ocean surface albedo (OSA) in case of phytoplankton influence in Malacca Strait coastal waters. Three days (January 29, February 26 and March 22, 2017) with high irradiation values were selected for daily OSA variability study. The parameterization includes bio-optical analytical modelling based on apparent optical properties and photosynthetically active range (PAR) estimation. Daily timescale analysis of spectral albedo in Malacca Strait enables detail examination for the chlorophyll maximum absorption wavelength (λ = 440 nm) parameterization. OSA diurnal variability was estimated using Jin et al. scheme, which is based on the separation of albedo components (direct and diffuse). Hourly changes in radiation (including K_t) and solar position properties provide valuable information to investigate the pathways of daily spectral albedo in case of small concentrations of chlorophyll (a) and clearness index parameterization.

在这项研究中，我们检查了反照率对净度指数（K _t）基于测量的全球辐射数据和浮游植物变异性影响，以马六甲海峡上层的叶绿素（a）浓度表示。分析了2017年1月至2017年10月期间的半小时全球太阳辐射（5°26′53″ N，100°11′36″ E）测量，以调查情况下净度指数与海洋表面反照率（OSA）之间的相关性马六甲海峡沿海水域浮游植物的影响 选择三天（2017年1月29日，2月26日和2017年3月22日）具有高辐射值进行每日OSA变异性研究。参数化包括基于表观光学特性和光合有效范围（PAR）估计的生物光学分析模型。每天对马六甲海峡的光谱反照率进行时标分析，可以详细检查叶绿素最大吸收波长（λ= 440 nm）的参数设置。使用Jin等人估计OSA的昼夜变化。该方案基于反照率分量（直接和漫反射）的分离。辐射每小时变化（包括K_t）和太阳位置特性为研究低叶绿素（a）和清除指数参数化情况下每日光谱反照率的途径提供了有价值的信息。