Article(id=1233720125430485968, tenantId=1146029695717560320, journalId=1149651085930835976, issueId=1233720124591633183, articleNumber=null, orderNo=null, doi=10.12284/hyxb2021005, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1570982400000, receivedDateStr=2019-10-14, revisedDate=1593273600000, revisedDateStr=2020-06-28, acceptedDate=null, acceptedDateStr=null, onlineDate=1772071399313, onlineDateStr=2026-02-26, pubDate=1611504000000, pubDateStr=2021-01-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1772071399313, onlineIssueDateStr=2026-02-26, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1772071399313, creator=13701087609, updateTime=1772071399313, updator=13701087609, issue=Issue{id=1233720124591633183, tenantId=1146029695717560320, journalId=1149651085930835976, year='2021', volume='43', issue='1', pageStart='1', pageEnd='164', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1772071399114, creator=13701087609, updateTime=1772071399114, updator=13701087609, preIssue=null, nextIssue=null, ext=null, issueFiles=null}, startPage=147, endPage=154, ext={EN=ArticleExt(id=1233720125753447379, articleId=1233720125430485968, tenantId=1146029695717560320, journalId=1149651085930835976, language=EN, title=Extraction method for diffuse attenuation coefficient based on airborne LiDAR bathymetric water column waveform, columnId=1194652705852465724, journalTitle=Haiyang Xuebao, columnName=Article, runingTitle=null, highlight=null, articleAbstract=
The diffuse attenuation coefficient (Kd) is an important marine optical parameter, which can provide the basic data for the water environment change, the water quality analysis and the aquaculture. There are some limitations of the traditional methods, such as the low efficiency and resolution of the traditional shipborne field measurement and the rough inversion accuracy and spatial resolution of the satellite remote sensing. Therefore, an extraction method for diffuse attenuation coefficient based on airborne LiDAR bathymetric water column waveform is proposed in this paper. Firstly, the water column contribution is decomposed by the waveform decomposition algorithm for airborne LiDAR bathymetry based on the layered heterogeneous model. Then, according to the attenuation characteristics of laser in water, the diffuse attenuation coefficient extraction model is constructed. Finally, the diffuse attenuation coefficient spatial distribution in a large area of water is obtained. The performance of the proposed method was verified by the measured data from the Ganquan Island in the Xisha Archipelago and the Lianyungang’s seacoast. The experimental results demonstrated that the proposed method could obtain the diffuse attenuation coefficient without the water bottom contribution intensity and depth information for each bathymetric point. And the good results were also achieved in turbid waters. Meanwhile, the proposed method showed the feasibility of employing the ALB system to obtain the high-precision diffuse attenuation coefficient in China coastal waters.
, correspAuthors=Fanlin Yang, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright © 2021 Pratacultural Science. All rights reserved., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Chao Qi, Fengnian Zhou, Jingwen Wu, Dianpeng Su, Xiankun Wang, Fanlin Yang), CN=ArticleExt(id=1233720129113083915, articleId=1233720125430485968, tenantId=1146029695717560320, journalId=1149651085930835976, language=CN, title=基于机载LiDAR测深水体波形的漫衰减系数提取方法, columnId=1149698756456657529, journalTitle=海洋学报, columnName=论文, runingTitle=null, highlight=null, articleAbstract=
漫衰减系数是一个重要的海洋光学参数,能够为水体环境变化、水质分析以及水产养殖等方面提供基础性数据。针对目前船载实地测量效率与分辨率低、卫星遥感反演精度与分辨率较低的局限性,本文提出一种基于机载LiDAR测深水体波形的漫衰减系数提取方法。该方法首先通过分层异构模型的机载LiDAR波形分解算法得到水体散射回波,利用激光在水体中的衰减特性,构建漫衰减系数提取模型,最终获取大面积水域漫衰减系数的空间分布。采用西沙甘泉岛与江苏连云港两个航次的实测数据对所提算法进行了验证,本算法无需每个测深点的水底底部回波强度和深度即可反演得到漫衰减系数,并且在浑浊水域也可取得较好的效果,表明在中国近海利用机载LiDAR测深系统能够有效获取高精度的漫衰减系数。
, correspAuthors=阳凡林, authorNote=null, correspAuthorsNote=
, copyrightStatement=版权所有©《海洋学报》编辑部 2021
亓超,周丰年,吴敬文,等. 基于机载LiDAR测深水体波形的漫衰减系数提取方法[J]. 海洋学报,2021,43(1):147–154Qi Chao,Zhou Fengnian,Wu Jingwen, et al. Extraction method for diffuse attenuation coefficient based on airborne LiDAR bathymetric water column waveform[J]. Haiyang Xuebao,2021, 43(1):147–154
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1College of Geodesy and Geomatics, Shandong University of Science and Technology, Qingdao 266590, China
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1山东科技大学 测绘与空间信息学院,山东 青岛 266590
2自然资源部海洋测绘重点实验室,山东 青岛 266590, bio={"content":"
亓超(1994-),男,山东省莱芜市人,博士生,主要从事机载激光测深及其数据处理方面的研究工作。E-mail:qichoice007@sdust.edu.cn
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亓超(1994-),男,山东省莱芜市人,博士生,主要从事机载激光测深及其数据处理方面的研究工作。E-mail:qichoice007@sdust.edu.cn
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3The Survey Bureau of the Hydrology and Water Resources of Changjiang Estuary, Changjiang Water Resources Commission, Shanghai 200136, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1233728218767881096, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, authorId=1233728218558165882, language=CN, stringName=周丰年, firstName=丰年, middleName=null, lastName=周, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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3长江水利委员会水文局长江口水文水资源勘测局,上海 200136, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1233728218147124066, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, xref=3, ext=[AuthorCompanyExt(id=1233728218151318370, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, companyId=1233728218147124066, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1College of Geodesy and Geomatics, Shandong University of Science and Technology, Qingdao 266590, China
2Key Laboratory of Oceanic Surveying and Mapping, Ministry of Natural Resources, Qingdao 266590, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1233728219556410288, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, authorId=1233728219208283039, language=CN, stringName=宿殿鹏, firstName=殿鹏, middleName=null, lastName=宿, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1山东科技大学 测绘与空间信息学院,山东 青岛 266590
2自然资源部海洋测绘重点实验室,山东 青岛 266590, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1233728216607814487, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, xref=1, ext=[AuthorCompanyExt(id=1233728216616203094, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, companyId=1233728216607814487, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1College of Geodesy and Geomatics, Shandong University of Science and Technology, Qingdao 266590, China
2Key Laboratory of Oceanic Surveying and Mapping, Ministry of Natural Resources, Qingdao 266590, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1233728219891954624, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, authorId=1233728219644490677, language=CN, stringName=王贤昆, firstName=贤昆, middleName=null, lastName=王, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1山东科技大学 测绘与空间信息学院,山东 青岛 266590
2自然资源部海洋测绘重点实验室,山东 青岛 266590, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1233728216607814487, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, xref=1, ext=[AuthorCompanyExt(id=1233728216616203094, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, companyId=1233728216607814487, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1, 2, *, address=
1College of Geodesy and Geomatics, Shandong University of Science and Technology, Qingdao 266590, China
2Key Laboratory of Oceanic Surveying and Mapping, Ministry of Natural Resources, Qingdao 266590, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1233728220202333134, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, authorId=1233728219996812228, language=CN, stringName=阳凡林, firstName=凡林, middleName=null, lastName=阳, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1山东科技大学 测绘与空间信息学院,山东 青岛 266590
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1山东科技大学 测绘与空间信息学院,山东 青岛 266590)]), AuthorCompany(id=1233728216725255004, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, xref=2, ext=[AuthorCompanyExt(id=1233728216733643613, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, companyId=1233728216725255004, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2Key Laboratory of Oceanic Surveying and Mapping, Ministry of Natural Resources, Qingdao 266590, China), AuthorCompanyExt(id=1233728216742032222, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, companyId=1233728216725255004, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2自然资源部海洋测绘重点实验室,山东 青岛 266590)]), AuthorCompany(id=1233728218147124066, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, xref=3, ext=[AuthorCompanyExt(id=1233728218151318370, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, companyId=1233728218147124066, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3The Survey Bureau of the Hydrology and Water Resources of Changjiang Estuary, Changjiang Water Resources Commission, Shanghai 200136, China), AuthorCompanyExt(id=1233728218159706979, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, companyId=1233728218147124066, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3长江水利委员会水文局长江口水文水资源勘测局,上海 200136)])], figs=[ArticleFig(id=1233728222588892147, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, language=EN, label=Fig. 1, caption=
Flow diagram of the new method in this study, figureFileSmall=QqNDMiF2XOXDh1ywdg4zrA==, figureFileBig=OKnfFH4ihbabwQe7egiF7g==, tableContent=null), ArticleFig(id=1233728222681166840, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, language=CN, label=图1, caption=
本文方法流程图, figureFileSmall=QqNDMiF2XOXDh1ywdg4zrA==, figureFileBig=OKnfFH4ihbabwQe7egiF7g==, tableContent=null), ArticleFig(id=1233728222811190265, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, language=EN, label=Fig. 2, caption=
Airborne LiDAR bathymetric waveform, figureFileSmall=wPKlplIkPgQneN4qiw0YRg==, figureFileBig=27PjNYzluokhpB6be8jyqg==, tableContent=null), ArticleFig(id=1233728222882493437, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, language=CN, label=图2, caption=
机载LiDAR测深波形示意图, figureFileSmall=wPKlplIkPgQneN4qiw0YRg==, figureFileBig=27PjNYzluokhpB6be8jyqg==, tableContent=null), ArticleFig(id=1233728222978962432, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, language=EN, label=Fig. 3, caption=
Decomposition of water column contribution by double-exponential function, figureFileSmall=1djihGZWoJ367Y9Pl2sxrg==, figureFileBig=/68GterYAywic6gSLMX3Kw==, tableContent=null), ArticleFig(id=1233728223067041795, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, language=CN, label=图3, caption=
双指数函数分解水体散射回波示意图, figureFileSmall=1djihGZWoJ367Y9Pl2sxrg==, figureFileBig=/68GterYAywic6gSLMX3Kw==, tableContent=null), ArticleFig(id=1233728223134150662, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, language=EN, label=Fig. 4, caption=
Location of the study areasa. Ganquan Island in the Xisha Archipelago;b. Jiangsu Lianyungang’s seacoast
, figureFileSmall=W+qdhGyZmgoBwDtOdjEUtg==, figureFileBig=MsL5RxBjt1TFcGCh2yR8Pw==, tableContent=null), ArticleFig(id=1233728223222231052, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, language=CN, label=图4, caption=
研究区域位置a. 西沙甘泉岛;b. 江苏连云港沿岸
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Waveform processing resultsa. Waveform denoising results of the Lianyungang’s seacoast;b. waveform decomposition results of the Lianyungang’s seacoast;c. waveform denoising results of the Ganquan Island;d. waveform decomposition results of the Ganquan Island
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波形处理结果a. 连云港波形去噪结果;b. 连云港波形分解结果;c. 甘泉岛波形去噪结果;d. 甘泉岛波形分解结果
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Distribution of the sample area in the Ganquan Islanda. Sample area marked by the red box;b. depth;c. diffuse attenuation coefficient
, figureFileSmall=jbDrVHlrkXnk+qWCOEsqsA==, figureFileBig=g9M6D759yuGGLUtdDQzNqw==, tableContent=null), ArticleFig(id=1233728223540998167, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, language=CN, label=图6, caption=
甘泉岛西南角样本区域空间分布a. 样本区域(红框);b. 水深值;c. 漫衰减系数
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Frequency distribution histogram of Kd in the Ganquan Island, figureFileSmall=w1yYyqaamZuzVYetuNv2fA==, figureFileBig=Mc6RKJf7cKvl/pWSgwsifg==, tableContent=null), ArticleFig(id=1233728223754907676, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, language=CN, label=图7, caption=
甘泉岛西南角样本区域Kd值频率分布直方图, figureFileSmall=w1yYyqaamZuzVYetuNv2fA==, figureFileBig=Mc6RKJf7cKvl/pWSgwsifg==, tableContent=null), ArticleFig(id=1233728223855570977, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, language=EN, label=Fig. 8, caption=
Frequency distribution histogram of Kd in the Lianyungang’s seacoast, figureFileSmall=qLlAC2wwukXKoLMuYfsXfg==, figureFileBig=vLiEmPrI+ZY6r372S+SWVA==, tableContent=null), ArticleFig(id=1233728223939457056, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, language=CN, label=图8, caption=
连云港Kd值频率分布直方图, figureFileSmall=qLlAC2wwukXKoLMuYfsXfg==, figureFileBig=vLiEmPrI+ZY6r372S+SWVA==, tableContent=null), ArticleFig(id=1233728224006565923, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, language=EN, label=Table 1, caption=
Technical parameters of Aquarius and CZMIL
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| 航次 | 甘泉岛 | 连云港 |
| ALB名称 | Aquarius | CZMIL |
| 波段 | Green: 532 nm | IR:1064 nm Green: 532 nm |
| 脉冲频率 | 70 kHz | 70 kHz (浅水),10 kHz (深水) |
| 作业航高 | 300~500 m | 400 m |
| 最大探测深度 | 20 m | Kd·DMAX = 3.75~4.0 (白天,海底反射率>15%) |
| 最小探测深度 | − | <0.15 m |
| 扫描天底角 | 15° | 20° |
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Aquarius与CZMIL的技术参数
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| 航次 | 甘泉岛 | 连云港 |
| ALB名称 | Aquarius | CZMIL |
| 波段 | Green: 532 nm | IR:1064 nm Green: 532 nm |
| 脉冲频率 | 70 kHz | 70 kHz (浅水),10 kHz (深水) |
| 作业航高 | 300~500 m | 400 m |
| 最大探测深度 | 20 m | Kd·DMAX = 3.75~4.0 (白天,海底反射率>15%) |
| 最小探测深度 | − | <0.15 m |
| 扫描天底角 | 15° | 20° |
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Performance indexes of waveform fitting algorithm
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| 航次 | 指标 | 最小值 | 最大值 | 平均值 |
| 连云港 | RMSE | 7.4223 | 15.5780 | 10.0197 |
| R2 | 0.8657 | 0.9975 | 0.9945 |
| 甘泉岛 | RMSE | 1.8440 | 13.1071 | 7.4710 |
| R2 | 0.9799 | 0.9997 | 0.9947 |
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分解算法性能指标
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| 航次 | 指标 | 最小值 | 最大值 | 平均值 |
| 连云港 | RMSE | 7.4223 | 15.5780 | 10.0197 |
| R2 | 0.8657 | 0.9975 | 0.9945 |
| 甘泉岛 | RMSE | 1.8440 | 13.1071 | 7.4710 |
| R2 | 0.9799 | 0.9997 | 0.9947 |
), ArticleFig(id=1233728224346304557, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, language=EN, label=Table 3, caption=
Extraction results of diffuse attenuation coefficient
, figureFileSmall=null, figureFileBig=null, tableContent=
| 航次 | 区块 | 传统方法漫衰减系数/m−1 | 文中算法漫衰减系数/m−1 |
| 甘泉岛 | A | 0.206 5 | 0.215 6 |
| B | 0.205 2 | 0.245 3 |
| 连云港 | A | 0.365 1 | 0.378 8 |
| B | 0.362 6 | 0.381 1 |
), ArticleFig(id=1233728224446967855, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, language=CN, label=表3, caption=
漫衰减系数提取结果
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| 航次 | 区块 | 传统方法漫衰减系数/m−1 | 文中算法漫衰减系数/m−1 |
| 甘泉岛 | A | 0.206 5 | 0.215 6 |
| B | 0.205 2 | 0.245 3 |
| 连云港 | A | 0.365 1 | 0.378 8 |
| B | 0.362 6 | 0.381 1 |
), ArticleFig(id=1233728224535048241, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, language=EN, label=Table 4, caption=
Relationship between diffuse attenuation coefficient and water quality[25]
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| 水质 | 典型海域 | Kd(532)/m−1 |
| 好 | 夏威夷、巴哈马群岛、佛罗里达东海岸 | <0.08 |
| 较好 | 佛罗里达西海岸、韩国东海岸 | 0.08~0.2 |
| 较浑浊 | 日本沿海 | 0.2~0.4 |
| 非常浑浊 | 密西西比海湾,东海 | >0.4 |
), ArticleFig(id=1233728224631517235, tenantId=1146029695717560320, journalId=1149651085930835976, articleId=1233720125430485968, language=CN, label=表4, caption=
漫衰减系数与水质之间的关系[25]
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| 水质 | 典型海域 | Kd(532)/m−1 |
| 好 | 夏威夷、巴哈马群岛、佛罗里达东海岸 | <0.08 |
| 较好 | 佛罗里达西海岸、韩国东海岸 | 0.08~0.2 |
| 较浑浊 | 日本沿海 | 0.2~0.4 |
| 非常浑浊 | 密西西比海湾,东海 | >0.4 |
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