Neural network model for chlorophyll-a concentration retrieval in the Bohai sea

CORC > 自然资源部第一海洋研究所 > 自然资源部第一海洋研究所 > 业务部门 > 海洋环境与数值模拟研究室

	Neural network model for chlorophyll-a concentration retrieval in the Bohai sea
	Cui, T.1; Zhang, J.1,2; Ma, Y.1,2; Sun, L.3; Zhao, W.1
	2008
会议日期	4 21, 2008 - 4 25, 2008
会议地点	Beijing, China
卷号	655 SP
期号	655 SP
英文摘要	Based on the bio-optical dataset acquired in the Bohai Sea in June, 2005, neural network (NN) model for remote sensing inversion of chlorophyll-a concentration is developed. The three-layer backpropagation NN model employs hyperbolic tangent sigmoid transfer function and 7 Neurons in hidden layer, taking seawater remote sensing reflectance of 443nm, 490nm, 555nm and 670nm as model input. Model precision is evaluated by in situ data, with the Pearson correlation coefficient R2=0.8829, Mean Relative Error (MRE) =22.32% and Root Mean Square (RMS) =0.5385, which is satisfactory. NN model is proved to have a better performance than that of statistical inversion model (R2=0.7400, MRE =27.92%, RMS =0.9986). NN Model sensitivity to noise is tested to show its stability. Considering of the complexity of bio-optical properties of the Bohai Sea, the neural network model developed is suggested to be tested and validated using much more in situ data.
会议录	European Space Agency, (Special Publication) ESA SP
会议录出版者	European Space Agency
语种	英语
ISSN号	03796566
内容类型	会议论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/7131]
专题	业务部门_海洋环境与数值模拟研究室
作者单位	1.First Institute of Oceanography, SOA, Xianxialing Road, High-Tech Park, Qingdao 266061, China; 2.Key Laboratory of Marine Science and Numerical Modeling, SOA, Xianxialing Road, High-Tech Park, Qingdao 266061, China; 3.National Satellite Meteorological Center, CMA, South Road, Zhongguacun, Beijing 100081, China
推荐引用方式 GB/T 7714	Cui, T.,Zhang, J.,Ma, Y.,et al. Neural network model for chlorophyll-a concentration retrieval in the Bohai sea[C]. 见:. Beijing, China. 4 21, 2008 - 4 25, 2008.