Monitoring the vertical distribution of HABs using hyperspectral imagery and deep learning models
文献类型：期刊论文
| 作者 | Hong, Seok Min; Baek, Sang-Soo; Yun, Daeun; Kwon, Yong-Hwan; Duan, Hongtao; Pyo, JongCheol; Cho, Kyung Hwa |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2021 |
| 卷号 | 794 |
| 英文摘要 | Remote sensing techniques have been applied to monitor the spatiotemporal variation of harmful algal blooms (HABs) in many inland waters. However, these studies have been limited to monitor the vertical distribution of HABs due to the optical complexity of inland water. Therefore, this study applied a deep neural network model to monitor the vertical distribution of Chlorophyll-a (Chl-a), phycocyanin (PC), and turbidity (Turb) using drone-borne hyperspectral imagery, in-situ measurement, and meteoroidal data. The pigment concentrations were measured between depths of 0 m and 5.0 m with 0.05 m intervals. Here, four state-of-the-art data driven model structures (ResNet-18, ResNet-101, GoogLeNet, and Inception v3) were adopted for estimating the vertical distributions of the harmful algal pigments. Among the four models, the ResNet-18 model showed the best performance, with an R-2 value of 0.70. In addition, Gradient-weighted Class Activation Mapping (Grad-CAM) substantially provided informative reflectance band ranges near 490 nm and 620 nm in the hyperspectral image for the vertical estimation of pigments. Therefore, this study demonstrated that the explainable deep learning model with drone-borne hyperspectral images has the potential to estimate Chl-a, PC, and Turb vertical distributions and to show influential features that contribute to describing the vertical profile phenomena. (C) 2021 Elsevier B.V. All rights reserved. |
| 源URL | [http://159.226.73.51/handle/332005/20342]  |
| 专题 | 中国科学院南京地理与湖泊研究所 |
| 推荐引用方式 GB/T 7714 | Hong, Seok Min,Baek, Sang-Soo,Yun, Daeun,et al. Monitoring the vertical distribution of HABs using hyperspectral imagery and deep learning models[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,794. |
| APA | Hong, Seok Min.,Baek, Sang-Soo.,Yun, Daeun.,Kwon, Yong-Hwan.,Duan, Hongtao.,...&Cho, Kyung Hwa.(2021).Monitoring the vertical distribution of HABs using hyperspectral imagery and deep learning models.SCIENCE OF THE TOTAL ENVIRONMENT,794. |
| MLA | Hong, Seok Min,et al."Monitoring the vertical distribution of HABs using hyperspectral imagery and deep learning models".SCIENCE OF THE TOTAL ENVIRONMENT 794(2021). |
入库方式： OAI收割
来源：南京地理与湖泊研究所
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