| The vertical attenuation of irradiance as a function of turbidity: a case of the Huanghai(Yellow) Sea in spring |
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| 作者姓名： | LINShaoying ZOUTao GAOHuiwang GUOXinyu |
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| 作者单位： | LIN Shaoying,ZOU Tao,GAO Huiwang(Key Laboratory of Marine Environment and Ecology, Ministry of Education of China, Ocean University of China, Qingdao 266100, China);GUO Xinyu(Center for Marine Environmental Studies, Ehime University, 2-5 Bunkyo-Cho, Matsuyama 790-8577, Japan) |
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| 基金项目： | The National Natural Science Foundation of China for supporting this work financially under Contracts No40490262;;Guo Xinyu thanks the support from JSPS KAKENHI(21310012) |
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| 摘 要： | The planar photosynthetically available radiation (PAR), turbidity and concentration of chlorophyll a (chl a), were measured at 26 stations in the Huanghai (Yellow) Sea during a cruise of China SOLAS from 19 to 27 March 2005. Due to low chl a (<0.35 mg · m-3 ) in upper layers (above 5 m), suspended particulate matter became the major factor that influenced the turbidity in early spring. The calculated vertical diffuse attenuation coefficient of PAR, K PAR , varied with water depths with a maximum value in t...
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| 关 键 词： | 辐射衰减 垂直扩散 黄海 浊度 叶绿素a浓度 海上人命安全公约 光合有效辐射 PAR |
| 收稿时间： | 2009/3/31 0:00:00 |
| 修稿时间： | 9/6/2009 12:00:00 AM |
The vertical attenuation of irradiance as a function of turbidity: a case of the Huanghai(Yellow) Sea in spring |
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| LINShaoying,ZOUTao,GAOHuiwang,GUOXinyu.The vertical attenuation of irradiance as a function of turbidity: a case of the Huanghai(Yellow) Sea in spring[J].Acta Oceanologica Sinica,2009,28(5):66-75. |
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| Authors: | LIN Shaoying ZOU Tao GAO Huiwang and GUO Xinyu |
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| Institution: | 1.Key Laboratory of Marine Environment and Ecology, Ministry of Education of China, Ocean University of China, Qingdao 266100, China2.Center for Marine Environmental Studies, Ehime University, 2-5 Bunkyo-Cho, Matsuyama 790-8577, Japan |
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| Abstract: | The planar photosynthetically available radiation (PAR), turbidity and concentration of chlorophyll a (chl a), were measured at 26 stations in the Huanghai (Yellow) Sea during a cruise of China SOLAS from 19 to 27 March 2005. Due to low chl a (<0.35 mg·m~(-3)) in upper layers (above 5 m),suspended particulate matter became the major factor that influenced the turbidity in early spring.The calculated vertical diffuse attenuation coefficient of PAR, K_(PAR), varied with water depths with a maximum value in the upper 5 m layer. The mean K_(PAR) in survey area was 0.277±0.07 m~(-1) that is considerably higher than most of the other case 2 waters. Within the survey area, K_(PAR) also showed distinct regional characteristics, corresponding to the distribution of turbidity. Based on measurements, the relationship between K_(PAR) and turbidity as well as chl a was established.It was suggested that suspended particulate matter plays an important role in light attenuation in the Huanghai (Yellow) Sea in spring. |
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| Keywords: | Photosynthetically available radiation Diffuse attenuation coefficient Turbidity Chlorophyll a the Huanghai (Yellow) Sea |
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