| 基于MODIS数据反演的渤海叶绿素浓度时空变化 |
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| 引用本文： | 钱莉,刘文岭,郑小慎.基于MODIS数据反演的渤海叶绿素浓度时空变化[J].海洋通报,2011,30(6):683-687. |
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| 作者姓名： | 钱莉 刘文岭 郑小慎 |
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| 作者单位： | 天津科技大学 海洋科学与工程学院 天津市海洋资源和化学重点实验室,天津,300457 |
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| 基金项目： | 天津市自然科学基金资助项目 (09JCZDJC25400，08JCYBJC10500 ) |
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| 摘 要： | 采用离散时间功率谱、距平、滑动平均等统计学方法分析了MODIS反演得到的渤海海域2002-2009年叶绿素浓度的时空变化特征.结果表明,叶绿素浓度多年月平均值的波峰出现在2-3月份,波谷在7月份.叶绿素多年平均值近海明显高于外海,由近海往外递降,最低值出现在渤海海峡和北黄海口附近.通过对叶绿索浓度多年月距平值进行离散时...
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| 关 键 词： | 渤海 叶绿素a 时空变化 MODIS |
| 收稿时间： | 2010/3/28 0:00:00 |
| 修稿时间： | 2010/11/1 0:00:00 |
Spatial-temporal variation of Chlorophyll-a concentration in Bohai Sea based on MODIS |
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| QIAN Li,LIU Wen-ling and ZHENG Xiao-shen.Spatial-temporal variation of Chlorophyll-a concentration in Bohai Sea based on MODIS[J].Marine Science Bulletin,2011,30(6):683-687. |
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| Authors: | QIAN Li LIU Wen-ling and ZHENG Xiao-shen |
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| Institution: | Tianjin Key Laboratory of Marine Resources and Chemistry, College of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China;Tianjin Key Laboratory of Marine Resources and Chemistry, College of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China;Tianjin Key Laboratory of Marine Resources and Chemistry, College of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China |
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| Abstract: | Spatial-temporal variation of Chlorophyll-a concentration based on Moderate Resolution Imaging Spectroradiometer (MODIS-Auqa, aboard Auqa satellite) was analyzed since the starting of MODIS-Auqa mission in July 2002 till December 2009. Statistical methods including anomaly, sliding average, power spectral density were used to analyze the spatial-temporal variation of Chlorophyll-a concentration in the Bohai Sea. Seasonal variation of Chlorophyll-a concentration represented the maximum values in February-March, the minimum values in July. Spatial variation showed the high concentration of Chlorophyll-a in coastal shore and decreased to offshore and the minimum values lay in Bohai strait and northern Huanghai Sea. The monthly anomalies showed about 4-year and 2-year cycle. In 2006, the whole Bohai Sea showed high Chlorophyll-a concentration from 2003 to 2008. |
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| Keywords: | Bohai Sea Chlorophyll-a spatial-temporal variation MODIS |
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