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›› 2013, Vol. 30 ›› Issue (5): 628-636.DOI: 10.7523/j.issn.2095-6134.2013.05.009

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Design and implementation of an experimental data assimilation system for chlorophyll-a in Lake Taihu based on the ensemble Kalman filter

WANG Ze-Ren1,2, MA Rong-Hua1, DUAN Hong-Tao1, ZHANG Yu-Chao1, QI Lin1,2   

  1. 1. State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2012-11-05 Revised:2013-02-25 Online:2013-09-15
  • Contact: 马荣华,E-mail:mrhua2002@niglas.ac.cn

Abstract:

We develop a novel data assimilation approach for the prediction of algal blooms in Lake Taihu. Our approach is based on a 2D ecological model which combines a physical model, 250 m MODIS inversion chlorophyll-a data, and an ensemble Kalman filter (EnKF) analysis scheme. Our results indicate that the data assimilation approach is reliable for predicting algal blooms in these complex waters.

Key words: data assimilation, EnKF, Chlorophyll-a, algal bloom forecast

CLC Number: