Seasonal Variability of Diffuse Attenuation Coefficient in the Pearl River Estuary from Long-Term Remote Sensing Imagery
文献类型：期刊论文
| 作者 | Yang, Chaoyu4; Ye, Haibin2,3; Tang, Shilin2,3 |
| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2020 |
| 卷号 | 12期号:14页码:2269 |
| 关键词 | Pearl River estuary diffuse attenuation coefficient MODIS S-EOF |
| 英文摘要 | We evaluated six empirical and semianalytical models of the diffuse attenuation coefficient at 490 nm (K-d(490)) using an in situ dataset collected in the Pearl River estuary (PRE). A combined model with the most accurate performance (correlation coefficient,R-2= 0.92) was selected and applied for long-term estimation from 2003 to 2017. Physical and biological processes in the PRE over the 14-year period were investigated by applying satellite observations (MODIS/Aqua data) and season-reliant empirical orthogonal function analysis (S-EOF). In winter, the averageK(d)(490) was significantly higher than in the other three seasons. A slight increasing trend was observed in spring and summer, whereas a decreasing trend was observed in winter. In summer, a tongue with a relatively highK(d)(490) was found in southeastern Lingdingyang Bay. In Eastern Guangdong province (GDP), the relatively higherK(d)(490) value was found in autumn and winter. Based on the second mode of S-EOF, we found that the higher values in the eastern GDP extended westward and formed a distinguishable tongue in winter. The grey relational analysis revealed that chlorophyll-a concentration (C-chla) and total suspended sediment concentration (C-tsm) were two dominant contributors determining the magnitude ofK(d)(490) values. TheC(tsm)-dominated waters were generally located in coastal and estuarine turbid waters; theC(chla)-dominated waters were observed in open clear ocean. The distribution of constituents-dominated area was different in the four seasons, which was affected by physical forces, including wind field, river runoff, and sea surface temperature. |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/18296]  |
| 专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
| 作者单位 | 1.Southern Marine Sci & Engn Guangdong Lab Guangzho, Guangzhou 510301, Peoples R China 2.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Peoples R China 3.Minist Nat Resources, Key Lab Marine Environm Survey Technol & Applicat, Guangzhou 510300, Peoples R China 4.State Ocean Adm, South China Sea Marine Predict Ctr, Guangzhou 510300, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Chaoyu,Ye, Haibin,Tang, Shilin. Seasonal Variability of Diffuse Attenuation Coefficient in the Pearl River Estuary from Long-Term Remote Sensing Imagery[J]. REMOTE SENSING,2020,12(14):2269. |
| APA | Yang, Chaoyu,Ye, Haibin,&Tang, Shilin.(2020).Seasonal Variability of Diffuse Attenuation Coefficient in the Pearl River Estuary from Long-Term Remote Sensing Imagery.REMOTE SENSING,12(14),2269. |
| MLA | Yang, Chaoyu,et al."Seasonal Variability of Diffuse Attenuation Coefficient in the Pearl River Estuary from Long-Term Remote Sensing Imagery".REMOTE SENSING 12.14(2020):2269. |
入库方式： OAI收割
来源：南海海洋研究所
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