Title
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.
Abstract
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.
Year
DOI
Venue
2015
10.3390/rs70810523
REMOTE SENSING
Field
DocType
Volume
Algal bloom,Algae,Wind speed,Bloom,Drainage basin,Oceanography,Geology,Water quality,Nutrient
Journal
7
Issue
Citations 
PageRank 
8
5
0.65
References 
Authors
1
6
Name
Order
Citations
PageRank
Yuchao Zhang15612.88
Ronghua Ma211324.96
Min Zhang350.99
Hongtao Duan46614.83
Steven A. Loiselle5378.28
Jinduo Xu650.99