Fourteen-Year Record (2000-2013) of the Spatial and Temporal Dynamics of Floating Algae Blooms in Lake Chaohu, Observed from Time Series of MODIS Images
Fourteen-Year Record (2000-2013) of the Spatial and Temporal Dynamics of Floating Algae Blooms in Lake Chaohu, Observed from Time Series of MODIS Images
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MODIS影像时间序列观测巢湖浮藻水华十四年记录（2000-2013）
DOI：
10.3390/rs70810523
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发表时间：
2015-08
期刊：
影响因子：
5
通讯作者：
Xu Jinduo
中科院分区：
文献类型：
--
作者：
Zhang Yuchao;Ma Ronghua;Zhang Min;Duan Hongtao;Loiselle Steven;Xu Jinduo
作为中国第五大淡水湖，巢湖由于水质下降和大量藻类水华的发生而引起越来越多的关注。我们将藻类像素生长算法应用于MODIS Terra或Aqua数据（2100张图像），以表征2000年至2013年气象和湖泊营养条件下的表面漂浮藻类水华动态。结果表明，增加表面水华覆盖率，频率和持续时间的趋势，对早期水华形成。重要的是，历史上较少受到损害的东部和中部湖区的空间和时间模式表明，水质状况正在恶化。与此同时，湖泊管理部门也在流域范围内努力减少影响。我们的研究结果表明，营养盐浓度不是年际变化的主要驱动力。当地的气象条件，特别是风速和温度，在浮游藻华的动态中起着重要作用。这突出了湖泊管理面临的重大挑战。
As the fifth largest freshwater lake in China, Lake Chaohu has drawn increasing attention due to the decline in water quality and the occurrence of massive algal blooms. We applied an algae pixel-growing algorithm to MODIS Terra or Aqua data (2100 images) to characterize surface floating algae bloom dynamics from 2000 to 2013 with respect to meteorological and lake nutrient conditions. The results show an increase in surface algal bloom coverage, frequency, and duration with a trend toward earlier bloom formation. Importantly, spatial and temporal patterns in the historically less compromised eastern and middle lake areas show that water quality conditions are deteriorating. This has occurred at the same time as lake management has made a catchment scale effort to reduce impact. Our results show that nutrient concentrations were not the main driver of inter-annual bloom variations. Local meteorological conditions, in particular wind speed and temperature, played an important role in the dynamics of floating algal bloom. This highlights the important challenges for lake management.
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影响因子：
2.6
作者：
Dai Gongyuan;Liao Jie;Li Lin;Song Lirong
通讯作者：
Dai Gongyuan;Liao Jie;Li Lin;Song Lirong
影响因子：
2.5
作者：
Kahru, M;Leppänen, JM;Savchuk, OP
通讯作者：
Savchuk, OP
影响因子：
13.5
作者：
GOWER, JFR
通讯作者：
GOWER, JFR
中国太湖蓝藻水华的中分辨率成像光谱仪 (MODIS) 观测
影响因子：
3.6
作者：
Hu, Chuanmin;Lee, Zhongping;Shang, Shaoling
通讯作者：
Shang, Shaoling
DOI：
--
发表时间：
2008
期刊：
China Environmental Science
影响因子：
--
作者：
T. Feng
通讯作者：
T. Feng