Notice of RetractionSpatial-temporal characteristics of chlorophyll a concentration in the Sanya Bay of China

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

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The present study investigated the spatial-temporal characteristics of chlorophyll a (chl-a) concentration in Sanya Bay by shipboard survey data at 12 stations from 2006 to 2008, and discussed the relationship between chl-a distribution and influential factors using MODIS sea surface temperature (SST), sea surface wind (SSW) and rainwater runoff data. Results showed that the chl-a concentration in Sanya Bay ranged from 0.30 to 13.58 mg·m^-3, the average concentration and standard deviation (SD) were 1.49 mg·m^-3 and 1.74 mg·m^-3 respectively. The chla showed a decreased tendency from estuary to offshore, and a decreased trends with the depth increased in the estuary of Sanya River, whereas indicated increased trends in the area offshore. In the river mouth, the relative higher value appeared in autumn. But in the zone offshore, the relative lower value appeared in spring. Summer had a obvious stratification vertically. This changes were associated with environmental factors changes in this area, such as the seasonal monsoon and nutrients from rainfall runoff.