A study was conducted to understand how the Jiulongjiang River plume in China evolved during the wet season of 2015. By using a computer model and real-world data, researchers found that the freshwater from the river mostly flowed north from April to mid-August, but shifted south later in the season. They also identified four main patterns of the plume, with a northeastward flow being the most common. Wind and coastal currents were found to be the main factors shaping the movement of the river plume.