Notice of RetractionThe characteristic of Jialing River´s old channel

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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Based on data of the remote sensing and field surveys, we find and determine the distribution of old channels in the Jialing River. A total of 13 old channels are found and determined. They distribute mainly the reach of Langzhong - Nanchong. Meander parameters show that their meander ratio C values are all larger than 3.00, and the average value is 7.80. The C values of 4 meander belts are larger than 2.20, and the C value of the whole middle reach of ancient Jialing River that is 2.75. These values are all much larger than 1.50, which is a critical value of meandering rivers. It is suggested that the ancient Jialing River has a characteristic of meandering river pattern. In addition, it is found that the C value of the ancient river is larger than modem channel´s (It is thought that the larger C value maybe associated with the lower Gradient J value), namely, it has a lager degree of curve. It is indicated that the Jialing River had ever occurred a process of natural cutoff of river.