Specific inherent optical properties of highly turbid productive water for retrieval of water quality after optical classification
文献类型：期刊论文
| 作者 | Huang, Changchun1; Chen, Xia1; Li, Yunmei1; Yang, Hao1; Sun, Deyong1; Li, Junsheng1; Le, Chengfeng1; Zhou, Liangcheng1; Zhang, Mingli1; Xu, Liangjiang1 |
| 刊名 | ENVIRONMENTAL EARTH SCIENCES
 |
| 出版日期 | 2015 |
| 卷号 | 73期号:5页码:193-206 |
| 关键词 | Chlorophyll-a Total suspended matter Remote sensing Bio-optical model Lake Taihu |
| 通讯作者 | Zhou, LC (reprint author), Nanjing Normal Univ, Key Lab Virtual Geog Environm, Minist Educ, Nanjing 210046, Jiangsu, Peoples R China. |
| 英文摘要 | Assessments of specific inherent optical properties (SIOPs) and their variability in highly turbid and productive inland waters are essential for the accurate estimation of water quality. A new optical classification method including two classification criteria [i.e., normalized remote sensing reflectance slope (NS), and normalized remote sensing reflectance depth (ND)] was developed to divide remote sensing reflectance into four classes, i.e., class 1 (NS < -0.0017 and ND < 0.21) is low turbid and productive water; class 2 (NS < -0.0017 and ND > 0.21) is low turbid and high productive water; class 3 (NS > -0.0017 and ND < 0.09) is high turbid and low productive water; and class 4 (NS > -0.0017 and ND > 0.009) is high turbid and high productive water. The relationships between phytoplankton absorption at 440 nm [a (ph)(440)] and chlorophyll-a concentration [C (chla)] as well as between particle backscattering coefficient at 440 nm [b (bp)(440)] and total suspended matter concentration (C (TSM)) after classification were obtained from a large number of in situ data in Lake Taihu. The measured specific phytoplankton absorption and particle backscattering coefficient show significant variations even within the same class. The mean values of at 440 nm for each class are 0.048 +/- A 0.013, 0.060 +/- A 0.012, 0.083 +/- A 0.021, and 0.056 +/- A 0.017 m(2)/mg, respectively. The mean values of at 440 nm for each class are 0.035 +/- A 0.01, 0.024 +/- A 0.004, 0.041 +/- A 0.009, and 0.038 +/- A 0.009 m(2)/g, respectively. The power functions of SIOPs and water constituents' concentration indicate that and vary with C (chla) and C (TSM). The validation results show that our proposed values for and cover a very wide range of water optical properties, which are characterized from clear water to highly turbid productive water. The validation results also suggest that the retrieval accuracy of C (chla) and C (TSM) bio-optical model was improved after classification. The root mean square error (RMSE) of C (chla) was improved from 14.18 to 7.43 mu g/L (mean value of all classes) and RMSE of C (TSM) was improved from 32.98 to 26.10 mg/L (mean value of all classes). Thus, the temporal and spatial variation of and should be considered in the bio-optical retrieval model of water quality. In complex optical properties of inland water, retrieving the water constituents with high accuracy needs to classify the water optical properties from the remote sensing spectrum by optical classification method. The figure shows the water color examples of each class. |
| 研究领域[WOS] | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000349360600004 |
| 源URL | [http://ir.ceode.ac.cn/handle/183411/38478]  |
| 专题 | 遥感与数字地球研究所_SCI/EI期刊论文_期刊论文 |
| 作者单位 | 1.[Huang, Changchun 2.Chen, Xia 3.Li, Yunmei 4.Yang, Hao 5.Zhou, Liangcheng 6.Zhang, Mingli 7.Xu, Liangjiang] Nanjing Normal Univ, Key Lab Virtual Geog Environm, Minist Educ, Nanjing 210046, Jiangsu, Peoples R China 8.[Sun, Deyong] Nanjing Univ Informat Sci & Technol, Coll Remote Sensing, Nanjing 210046, Jiangsu, Peoples R China 9.[Li, Junsheng] Chinese Acad Sci, Ctr Earth Observat & Digital Earth, Beijing 100094, Peoples R China 10.[Le, Chengfeng] Univ S Florida, Coll Marine Sci, Tampa, FL 33606 USA |
| 推荐引用方式 GB/T 7714 | Huang, Changchun,Chen, Xia,Li, Yunmei,et al. Specific inherent optical properties of highly turbid productive water for retrieval of water quality after optical classification[J]. ENVIRONMENTAL EARTH SCIENCES,2015,73(5):193-206. |
| APA | Huang, Changchun.,Chen, Xia.,Li, Yunmei.,Yang, Hao.,Sun, Deyong.,...&Xu, Liangjiang.(2015).Specific inherent optical properties of highly turbid productive water for retrieval of water quality after optical classification.ENVIRONMENTAL EARTH SCIENCES,73(5),193-206. |
| MLA | Huang, Changchun,et al."Specific inherent optical properties of highly turbid productive water for retrieval of water quality after optical classification".ENVIRONMENTAL EARTH SCIENCES 73.5(2015):193-206. |
入库方式： OAI收割
来源：遥感与数字地球研究所
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