| CDOM Absorption Properties of Natural Water Bodies along Extreme Environmental Gradients | |
Nima, C; Frette, O; Hamre, B; Stamnes, JJ; Chen, YC; Sorensen, K; Norli, M; Lu, DR; Xing, QG ; Muyimbwa, D; Ssenyonga, T; Stamnes, KH; Erga, SR
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| 发表期刊 | WATER
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| 2019-10 | |
| 卷号 | 11期号:10页码:1988 |
| 关键词 | CDOM absorption spectral slope S-R absorption coefficient CDOM origin |
| 研究领域 | Water Resources |
| DOI | 10.3390/w11101988 |
| 产权排序 | [Nima, Ciren] Tibet Univ, Dept Phys, Lhasa 850000, Peoples R China; [Frette, Oyvind; Hamre, Borge; Stamnes, Jakob J.; Chen, Yi-Chun] Univ Bergen, Dept Phys & Technol, N-5020 Bergen, Norway; [Sorensen, Kai; Norli, Marit] Norwegian Inst Water Res, N-0349 Oslo, Norway; [Lu, Daren] Chinese Acad Sci, Inst Atmospher Phys, Beijing 100029, Peoples R China; [Xing, Qianguo] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264000, Peoples R China; [Muyimbwa, Dennis; Ssenyonga, Taddeo] Makerere Univ, Dept Phys, Kampala 7062, Uganda; [Stamnes, Knut H.] Stevens Inst Technol, Hoboken, NJ 07030 USA; [Erga, Svein Rune] Univ Bergen, Dept Biol Sci, N-5020 Bergen, Norway |
| 通讯作者 | Nima, Ciren([email protected]) |
| 作者部门 | 海岸带信息集成与综合管理实验室 |
| 英文摘要 | We present absorption properties of colored dissolved organic matter (CDOM) sampled in six different water bodies along extreme altitudinal, latitudinal, and trophic state gradients. Three sites are in Norway: the mesotrophic Lysefjord (LF), Samnangerfjord (SF), and ROst Coastal Water (RCW); two sites are in China: the oligotrophic Lake Namtso (LN) and the eutrophic Bohai Sea (BS); and one site is in Uganda: the eutrophic Lake Victoria (LV). The site locations ranged from equatorial to subarctic regions, and they included water types from oligotrophic to eutrophic and altitudes from 0 m to 4700 m. The mean CDOM absorption coefficients at 440 nm [aCDOM(440)] and 320 nm [aCDOM(320)] varied in the ranges 0.063-0.35 m-1 and 0.34-2.28 m-1, respectively, with highest values in LV, Uganda and the lowest in the high-altitude LN, Tibet. The mean spectral slopes S280-500 and S350-500 were found to vary in the ranges of 0.017-0.032 nm-1 and 0.013-0.015 nm-1, respectively. The highest mean value for S280-500 as well as the lowest mean value for S350-500 were found in LN. Scatter plots of S280-500 versus aCDOM(440) and aCDOM(320) values ranges revealed a close connection between RCW, LF, and SF on one side, and BS and LV on the other side. CDOM seems to originate from terrestrial sources in LF, SF, BS, and LV, while RCW is characterized by autochthonous-oceanic CDOM, and LN by autochthonous CDOM. Photobleaching of CDOM is prominent in LN, demonstrated by absorption towards lower wavelengths in the UV spectrum. We conclude that high altitudes, implying high levels of UV radiation and oligotrophic water conditions are most important for making a significant change in CDOM absorption properties. |
| 文章类型 | Article |
| 资助机构 | Norwegian Research CouncilResearch Council of Norway [212019/F50] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | DISSOLVED ORGANIC-MATTER ; GROUND-BASED MEASUREMENTS ; UV-B RADIATION ; OPTICAL-PROPERTIES ; YELLOW SUBSTANCE ; LIGHT-ABSORPTION ; SEASONAL VARIABILITY ; GLOBAL DISTRIBUTION ; PARTICULATE MATTER ; SPECTRAL SLOPES |
| 研究领域[WOS] | Water Resources |
| WOS记录号 | WOS:000495598400033 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/24842 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_海岸带信息集成与战略规划研究中心 中国科学院海岸带环境过程与生态修复重点实验室 |
| 作者单位 | 1.Tibet Univ, Dept Phys, Lhasa 850000, Peoples R China; 2.Univ Bergen, Dept Phys & Technol, N-5020 Bergen, Norway; 3.Norwegian Inst Water Res, N-0349 Oslo, Norway; 4.Chinese Acad Sci, Inst Atmospher Phys, Beijing 100029, Peoples R China; 5.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264000, Peoples R China; 6.Makerere Univ, Dept Phys, Kampala 7062, Uganda; 7.Stevens Inst Technol, Hoboken, NJ 07030 USA; 8.Univ Bergen, Dept Biol Sci, N-5020 Bergen, Norway |
| 推荐引用方式 GB/T 7714 | Nima, C,Frette, O,Hamre, B,et al. CDOM Absorption Properties of Natural Water Bodies along Extreme Environmental Gradients[J]. WATER,2019,11(10):1988. |
| APA | Nima, C.,Frette, O.,Hamre, B.,Stamnes, JJ.,Chen, YC.,...&Erga, SR.(2019).CDOM Absorption Properties of Natural Water Bodies along Extreme Environmental Gradients.WATER,11(10),1988. |
| MLA | Nima, C,et al."CDOM Absorption Properties of Natural Water Bodies along Extreme Environmental Gradients".WATER 11.10(2019):1988. |
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